1 unchanged sentence
We are advancing our innovative portfolio of therapeutics, leveraging our proven drug development experience and multiple proprietary drug development platforms.
−Removed: Our extensive clinical and preclinical programs include Kv7 ion channel modulation for epilepsy and mood disorders;
−Removed: extracellular protein degradation for immunological diseases;
−Removed: Transient Receptor Potential Melastatin 3 ("TRPM3") antagonism for migraine and neuropathic pain;
−Removed: Tyrosine Kinase 2/Janus Kinase 1 ("TYK2/JAK1") inhibition for neuroinflammatory disorders;
−Removed: glutamate modulation for obsessive-compulsive disorder (“OCD”) and spinocerebellar ataxia ("SCA");
−Removed: myostatin inhibition for neuromuscular and metabolic diseases, including spinal muscular atrophy ("SMA") and obesity;
−Removed: and antibody recruiting bispecific molecules ("ARMs") and antibody drug conjugates ("ADCs") for cancer.
−Removed: Separation from Biohaven Pharmaceutical Holding Company Ltd.
On October 3, 2022, Biohaven Pharmaceutical Holding Company Ltd.
−Removed: (the “Former Parent”) completed the distribution (the “Distribution”) to holders of its common shares of all of the outstanding common shares of Biohaven Ltd.
−Removed: and the spin-off of Biohaven Ltd.
−Removed: from the Former Parent (the “Spin-Off”) described in Biohaven’s Information Statement attached as Exhibit 99.1 to Biohaven’s Registration Statement on Form 10, as amended (Reg.
−Removed: Collectively, we refer to the Distribution and Spin-Off throughout this Annual Report on Form 10-K ("Annual Report") as the "Separation." As a result of the Separation, Biohaven Ltd.
−Removed: became an independent, publicly traded company as of October 3, 2022, and commenced regular way trading under the symbol “BHVN”’ on the New York Stock Exchange (the "NYSE") on October 4, 2022.
−Removed: Where we describe historical business activities in this report, we do so as if the Former Parent’s activities related to such assets and liabilities had been performed by the Company.
+Added: (the “Former Parent”) completed the distribution to holders of its common shares of all of our outstanding common shares and the spin-off of Biohaven Ltd.
+Added: from the Former Parent (the “Separation”).
+Added: As a result of the Separation, Biohaven became an independent, publicly traded company as of October 3, 2022, and commenced regular way trading under the symbol “BHVN”’ on the New York Stock Exchange on October 4, 2022.
+Added: In the fourth quarter of 2025, we initiated strategic portfolio and cost-optimization measures to prioritize three key, late-stage, clinical programs that we believe have the greatest potential for value generation.
+Added: Our key clinical programs include Kv7 ion channel modulation for epilepsy;
+Added: Molecular Degrader of Extracellular Proteins (“MoDE”) and Targeted Removal of Aberrant Protein ("TRAP") extracellular protein degradation for immunological diseases;
+Added: and myostatin-activin pathway targeting agent for neuromuscular and metabolic diseases, including obesity (collectively, the "key programs").
+Added: The product candidates chart below summarizes our most advanced programs, including those that are key clinical stage programs and some of our preclinical programs that are beginning to advance to the clinic.
Product Candidates
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We hold the worldwide rights to substantially all of our product candidates.
+Added: MoDE and TRAP Degraders
+Added: Bispecific Molecular Degraders of Extracellular Proteins and TRAP Degraders
+Added: Biohaven Molecular Degrader of Extracellular Protein (“MoDE”) and Targeted Removal of Aberrant Protein ("TRAP"™) degraders harness selectivity, rapidity and patient-friendly self-administration to remove disease-causing proteins from the body to potentially treat a range of diseases.
+Added: Each MoDE or TRAP degrader is a novel bispecific molecule that targets a specific form of disease-causing circulating protein and directs it to the liver for degradation by the endosomal/lysosomal pathway.
+Added: The first extracellular protein degraders in the clinic, three MoDE and TRAP degraders have now been dosed in Phase 1 trials.
+Added: Our lead MoDE, BHV-1300, has demonstrated deep lowering of IgG > 80% in Phase 1 clinical trials and is being developed as a proprietary subcutaneous formulation in conjunction with an autoinjector for easy-to-use self-administration.
+Added: Data in the first Graves' patient dosed with BHV-1300 demonstrated complete suppression of autoantibodies targeting the TSH receptor and normalization of T3 and T4 within one month of dosing.
+Added: We plan to initiate a pivotal trial in 2026.
+Added: BHV-1400 , Biohaven's first TRAP molecule, is designed to specifically target the pathogenic driver of IgAN, galactose deficient IgA1 (Gd-IgA1) without suppressing the healthy immune system.
+Added: BHV-1400 has been dosed in a clinically concluded phase 1 study in normal healthy volunteers and continues to be dosed in an expansion cohort of IgAN patients with plans to initiate the pivotal study in IgAN patients in 2026.
+Added: Data from the first, and lowest, dose cohort of BHV-1400 demonstrated clear differentiation from competitors in the IgA nephropathy space, with deep, rapid lowering of Gd-IgA1 within hours and preservation of host immunoglobulins ("Ig") including IgG, IgA, IgE, and IgM.
+Added: These results have now been re-capitulated in the first IgAN patients dosed, with improvements noted in hematuria, proteinuria, and eGFR within the first month of dosing.
+Added: BHV-1300 has demonstrated deep lowering of IgG1, 2 and 4 in Phase 1 clinical trials and is being developed as a proprietary subcutaneous formulation in conjunction with an autoinjector for easy-to-use self-administration.
+Added: BHV-1300 was rationally designed to spare IgG3, potentially allowing for preservation of host defense.
+Added: BHV-1300 is being developed for the treatment of common immune mediated-diseases, such as Graves' Disease and Rheumatoid Arthritis ("RA").
+Added: Graves' Disease is a disease in which IgG1 autoantibodies stimulate the thyroid to produce excess thyroid hormone.
+Added: Targeted removal of disease-causing IgG has the potential to eliminate the pathogenic thyroid-stimulating antibody and modify the disease.
+Added: Graves' Disease is estimated to impact 1% of the population globally.
+Added: RA is a chronic autoimmune disease estimated to affect 1 to 2% of the global population.
+Added: RA primarily affects the joints, causing pain, swelling, stiffness, and loss of function.
+Added: We evaluated the effect of single and multiple doses of BHV-1300 in cynomolgus monkeys.
+Added: In September 2023, we reported data from confirmatory studies that showed a 75-80% reduction of IgG levels two days after a single dose and over 90% of IgG lowering after three doses.
+Added: Maximal lowering across FcRn inhibitors is 60-80% within approximately 7 to 21 days after initiation of single or multiple doses, respectively, in cynomolgus.
+Added: In contrast, a single dose of BHV-1300 lowers IgG by approximately 75 to 80% after approximately 2 days, and after three rapid doses to greater than 90% lowering.
+Added: The length of significant exposure to BHV-1300 is approximately one day within the dosage interval compared to continuous exposure required of the FcRn inhibitors.
+Added: Mechanism-related liabilities of FcRn inhibitors seen in animals and humans, including hypoalbuminemia and hypercholeresterolemia, are not expected and do not occur with BHV-1300 in cynomolgus.
+Added: See figures below comparing the speed and depth of lowering to FcRn inhibitors.
+Added: In January 2024, we reported preclinical pharmacodynamic single dose data with BHV-1300 which demonstrated the Biohaven IgG degrader technology allows for co-administration with Fc-containing biologics.
+Added: The PK of Humira® was unaltered after being dosed 12 hours after BHV-1300 administration (see figure below).
+Added: * Adapted from BLA 761154, IND 116471, Study no.
+Added: Our Phase 1 Study with BHV-1300
+Added: The Phase 1 SAD study examining BHV-1300 in healthy subjects was initiated in the first quarter of 2024.
+Added: In May 2024, we reported preliminary results from our Phase 1 study of BHV-1300.
+Added: These results in healthy subjects demonstrated that BHV-1300 rapidly and selectively lowers IgG in a dose-dependent manner in the first 4 cohorts completed to date (see figure below).
+Added: Preliminary IgG lowering data was consistent with modeling, with dose- and time-dependent IgG lowering observed even in initial low-dose cohorts.
+Added: Some subjects experienced IgG reductions as low as 50 to 70% of baseline.
+Added: BHV-1300 demonstrated reduction of IgG without significantly impacting LFTs, albumin, LDL cholesterol or other serum labs.
+Added: BHV-1300 has been safe and well tolerated to date, with no serious or severe adverse events.
+Added: Most adverse events ("AEs") were mild, deemed unrelated to study drug and resolved spontaneously.
+Added: As expected from the selectivity of the molecule for IgG, when compared to placebo, there were no meaningful reductions in average IgA, IgM or IgE levels during the week after dosing.
+Added: No adverse trends have been observed in vital signs or ECGs.
+Added: Modeling suggested additional cohorts in the Phase 1 study would achieve greater than 70% lowering of IgG utilizing doses compatible with subcutaneous administration.
+Added: The Phase 1 study has also compared intravenous and subcutaneous administration of BHV-1300.
+Added: Subcutaneous administration of BHV-1300 demonstrated an average of approximately 44% higher than expected exposure compared to the dose-equivalent intravenous formulation without injection site reactions.
+Added: This new human data confirms the feasibility of our plan for convenient dosing of BHV-1300 with a patient self-administered subcutaneous autoinjector.
+Added: In the fourth quarter of 2024 we provided an update to our Phase 1 study of BHV-1300, reporting that subcutaneously administered BHV-1300 achieved deep lowering of targeted IgG (IgG1, IgG2, IgG4, over IgG3), with reductions over 60% in the lowest subcutaneous dose tested in the ongoing MAD study.
+Added: Subcutaneous BHV-1300 achieved progressive reduction in IgG within hours of each weekly dose administration in the MAD, and pharmacodynamic effects were sustained relative to baseline over the four-week study period.
+Added: BHV-1300 has been safe and well-tolerated across the Phase 1 study.
+Added: There were no clinically significant effects on albumin or liver function, and no increases in cholesterol were noted.
+Added: Further enhancing the competitive safety profile and as intentionally designed, plasma IgG3 levels were preserved through the end of study week 4 to allow for healthy immune effector functioning.
+Added: All AEs were mild, any drug-related AE resolved, and there were no discontinuations due to study drug related AEs.
+Added: The optimized subcutaneous formulation in the MAD also showed substantially less inter-patient variability compared to previously reported intravenous BHV-1300.
+Added: In addition, we announced that we entered into an agreement with Ypsomed to develop and manufacture BHV-1300 in an easy-to-use, autoinjector for self-administration intended for commercialization.
+Added: In March 2025, we provided further updates to our ongoing Phase 1 study of BHV-1300.
+Added: In the four-week Phase 1 study, subcutaneously administered BHV-1300 at a dose of 1000 mg weekly achieved rapid, deep and sustained reductions
+Added: in total IgG of up to 84%, with a median reduction of 80%.
+Added: Reductions occurred within hours of each dose, were progressive, and were sustained compared to baseline over the four-week period.
+Added: In May 2025, we released new data from our clinically concluded Phase 1 study of BHV-1300.
+Added: In the Phase 1 multiple-dose study, subcutaneously administered BHV-1300 achieved IgG reductions up to 87%.
+Added: Median maximum reductions of 83% were achieved within 18 days (see figure below).
+Added: We recently reported the 1000 mg weekly dose achieved rapid, deep and sustained reductions in total IgG of up to 84%, with a median reduction of 80% by Week 4.
+Added: Reductions at all doses occurred within hours of administration, were progressive, and effects were durable between dosing intervals.
+Added: The range of IgG lowering enabled by different dose levels of BHV-1300 offers tunability and flexibility in dosing paradigm, with higher doses planned for management of acute conditions, and lower, less frequent dosing planned for the management of chronic disease.
+Added: In the preliminary data reported, BHV-1300 was safe and well-tolerated in subcutaneous doses up to 2000 mg with no clinically significant increases in ALT, AST, or bilirubin, no clinically significant reductions in albumin, and no clinically significant increases in cholesterol over the four-week dosing period compared to placebo.
+Added: There were no clinically significant reductions in IgG3, IgA, IgE, or IgM compared to baseline.
+Added: Most AEs were mild and self-resolving, and there were no serious or severe AEs.
+Added: A Phase 1b study has been initiated to evaluate the effect in participants with Graves' disease.
+Added: We plan to initiate a pivotal trial of BHV-1300 in Graves’ disease in 2026 and expect to pursue additional follow-on studies in other autoimmune diseases.
+Added: We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.
+Added: In January 2025, we announced that the first-in-patient clinical experience with BHV-1300 resulted in a complete suppression of disease-causing TSH receptor-stimulating antibodies with accompanying normalization of previously elevated thyroid hormones within weeks after dosing a patient with Graves' disease.
+Added: BHV-1400 is the first TRAP degrader introduced by Biohaven, a selective MoDE which is being developed to target Gd-IgA1, an aberrant immunoglobulin that drives IgA Nephropathy (see figure below).
+Added: Specific removal of pathogenic Gd-IgA1 and associated circulating immune complexes with preservation of normal IgA potentially permits disease remission without incurring an infection risk.
+Added: We shared preliminary data demonstrating the chimeric antibody-ASGPR ligand conjugate specifically mediated endocytosis of Gd-IgA1, as opposed to normal IgA1 and IgA2, in an endocytosis assay with ASGPR-expressing cell lines, and that TRAP degraders successfully internalize and degrade these immune-complexes.
+Added: In mice, after deposition of Gd-IgA1 in the glomerular mesangial matrix followed by administration of BHV-1400, Gd-IgA1 is progressively removed and no longer detected by six hours.
+Added: Our Phase 1 Study with BHV-1400
+Added: We initiated Phase 1 studies of BHV-1400 in the fourth quarter of 2024.
+Added: The first-in-human ("FIH") trial is a randomized, open-label, placebo-controlled, single and multiple ascending dose study to evaluate the safety, tolerability, PK, and PD of BHV-1400 in healthy volunteers.
+Added: In the first quarter of 2025, Biohaven announced deep and selective lowering of Gd-IgA1 with the first dose cohort tested in the SAD.
+Added: Subjects achieved median Gd-IgA1 lowering of 60% within 4 hours of dose administration without clinically significant lowering of healthy immunoglobulins IgA, IgE, IgM, or IgG.
+Added: As a next generation TRAP degrader, BHV-1400 is a potential therapeutic for the treatment of IgA nephropathy, and highlights the precision of MoDE platform molecules in their ability to selectively remove a pathogenic disease-causing protein without suppressing the healthy immune system.
+Added: In May 2025, we announced further data from the Phase 1 study of BHV-1400.
+Added: In the Phase 1 study, a single dose of BHV-1400 was subcutaneously administered at a dose of 500 mg and achieved rapid, deep and sustained reductions in
+Added: Gd-IgA1 of up to 81%, with a median reduction of 66% (see figure below).
+Added: Reductions occurred within hours of each dose, were progressive, and were sustained for weeks after a single dose administration.
+Added: Effects were selective, with no significant reductions observed in other immunoglobulins:
+Added: IgA, IgG, IgE, or IgM.
+Added: BHV-1400 has been safe and well-tolerated across the ongoing Phase 1 study.
+Added: Most AEs were mild and self-resolving, there were no discontinuations due to study drug related AEs, and there were no serious or severe study drug related AEs.
+Added: There were no clinically significant increases in ALT, AST or bilirubin, no clinically significant reductions in albumin and no clinically significant increases in cholesterol relative to placebo over the 4-week dosing period.
+Added: There were no clinically significant reductions in other immunoglobulins including IgG, IgA, IgE, or IgM relative to baseline.
+Added: Based upon the rapid and deep reductions of Gd-IgA1 observed with SC BHV-1400, we have expanded our Phase 1 study of BHV-1400 in patients with IgAN, and ultimately plan to initiate a pivotal trial using urine protein-creatinine ratio as a surrogate endpoint for accelerated approval.
+Added: In the fourth quarter of 2025, we completed a meeting with the U.S.
+Added: Food and Drug Administration ("FDA") to align on a pivotal IgAN study design, which we expect to initiate in the first quarter of 2026.
+Added: We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.
+Added: In January 2025, we announced that first dosing of BHV-1400 in IgAN patients achieved early observations of both biomarker and clinical responses including:
+Added: selective lowering of only the disease-causing galactose-deficient IgA1 while sparing off-target effects on healthy antibodies (IgA, IgM, IgE, IgG), resolution of blood in the urine (hematuria), deep reductions in proteinuria, and improvement in fatigue and kidney function (eGFR) within weeks.
+Added: Kv7 Platform Acquisition
+Added: In February 2022, we announced that we entered into a definitive agreement with Channel Biosciences, LLC, a subsidiary of Knopp Biosciences, LLC, to acquire a drug discovery platform targeting Kv7 ion channels, adding the latest advances in ion channel modulation to our growing neuroscience portfolio.
+Added: Kv7’s Role in Epilepsy, Mood Disorders, and Other Central Nervous System Disorders
+Added: Because of their fundamental role in health and their aberrant role in disease, ion channels in cell membranes represent a broad and important class of drug targets.
+Added: Sodium channels and potassium channels form the ionic basis of the action potential in electrically charged cells throughout the body (see figures below).
+Added: The Kv7 protein in particular forms a channel that exquisitely regulates the flow of charged potassium ions (K+) across cell membranes, repolarizing nerve cells and resetting them for normal action potential firing.
+Added: Kv7 channels include a family of channel subtypes, designated as Kv7.1 through Kv7.5, and they are formed by tetramers of identical or compatible subunits.
+Added: Some of these channel subtypes localize in nerve cells (neurons) while others can be found in cardiac muscle, smooth muscle, and other tissue types.
+Added: The Kv7 subunits, Kv7.2 and Kv7.3, are widely expressed in the brain, notably in the cortex and hippocampus, and together they form Kv7.2/7.3 heteromeric channels that produce the M-current ( I KM ), a critical regulator of neuronal excitability (see figures below).
+Added: Kv7.2/7.3 channels normally perform a natural “braking” function by regulating the electrical excitability and hyperexcitability of brain cells.
+Added: Dysfunction of these channels, due to genetic mutations or other factors, increases seizure risk, while augmenting the ‘open’ activity of these channels has been demonstrated to reduce neuronal hyperexcitability and seizure frequency in electrophysiology laboratories, in animal models, and, most importantly, in patients.
+Added: White, Role of Potassium Channel Ions in Epilepsy, Medscape.org
+Added: We are synthesizing novel Kv7.2/7.3 activators that improve on the selectivity, potency, and other characteristics of ezogabine (Potiga in the U.S.
+Added: and Trobalt (retigabine) in Europe), a drug approved in 2011 for the treatment of refractory epilepsy and voluntarily withdrawn from the market in 2017 because of poor tolerability and structure-related toxicities that limited its clinical use, and ezogabine-like compounds, while averting its negative attributes, including off-target activity at a different brain ion channel, gamma-aminobutyric acid (“GABA”) A receptor (“GABA A -R”).
+Added: Using a structure-based approach, supplemented by in silico modeling, we have identified structural features of our molecules critical to Kv7 activation.
+Added: We have applied these analyses to the generation of proprietary chemical leads structurally distinct from known Kv7 activators, including ezogabine and flupirtine, the only other approved Kv7 modulator, approved in Europe for the treatment of acute pain.
+Added: Our team has synthesized a large library of Kv7-activating molecules and are advancing them according to stringent criteria requiring improvements over ezogabine, including chemical stability, synthetic tractability, the avoidance of structural motifs associated with the generation of reactive metabolites and other unwanted, off-target activity, including GABA A -R activation.
+Added: Epilepsy, Major Depressive Disorder ("MDD"), and Bipolar Disorder are the initial indications we targeted with activators from our Kv7 platform.
+Added: In addition to their role in treating epilepsy, anti-seizure medications ("ASMs") are often used in the management of bipolar disorder and Kv7 activators have recently shown promise in the treatment of MDD.
+Added: While the use of ASMs is often accompanied by dose-limiting side effects, our Kv7 activators are specifically designed to target subtypes of Kv7 potassium channels without engagement of GABA A receptors.
+Added: The lack of GABA A -R activity potentially gives activators from our Kv7 platform a wide therapeutic window and is expected to result in an improved side effect profile, limiting the somnolence and fatigue often seen in patients receiving ASMs.
+Added: Opakalim (BHV-7000)
+Added: Opakalim (formerly referred to as BHV-7000), the lead asset from the Kv7 platform, is a potent Kv7.2/7.3 ion channel activator from a novel, bicyclic imidazole class that is structurally-distinct from other Kv7 modulators (e.g., ezogabine and related aniline compounds) with significant in vivo anticonvulsant activity and a wide therapeutic index.
+Added: In the most widely used and positively-predictive preclinical model of epilepsy, the maximal electroshock (“MES”) model, data for opakalim and ezogabine were collected in independent experiments (see figures below), measuring the activity of both compounds in preventing seizures (ED50) and recording the neurologic deficit five minutes prior to the MES test to calculate the tolerability index (“TI”).
+Added: The neurologic deficit is a behavioral index ranging from normal activity (score of 0) to a loss of righting reflex (score of 3).
+Added: As shown below, opakalim was demonstrated to have an ED50 = 0.5 mg/kg with almost no impact on behavior producing a TI > 40x.
+Added: In a separate rotarod experiment of preclinical tolerability, opakalim had no impact on rat motor behavior up to 30 mg/kg, the highest dose tested.
+Added: In contrast, ezogabine was 40x less potent (ED50 = 20 mg/kg) in the MES model with a narrow TI < 3x.
+Added: The narrow preclinical TI for ezogabine is consistent with the clinical
+Added: experience with the drug where side effects such as somnolence and dizziness limited its use at doses that prevented seizures in patients.
+Added: Phase 1 Clinical Development
+Added: In the second quarter of 2022, our Clinical Trial Application for opakalim was approved by Health Canada, and we subsequently began phase 1 clinical development.
+Added: First-in-human single ascending dose ("SAD") and multiple ascending dose ("MAD") studies were completed with an immediate release formulation.
+Added: In the SAD and MAD cohorts, 77 subjects received opakalim (N=58) or placebo (N= 19).
+Added: Thirty-nine SAD subjects were randomized to opakalim or placebo and thirty-eight MAD subjects were randomized to opakalim or placebo.
+Added: The rates of AEs by MedDRA System Organ Class
+Added: across the pooled SAD and MAD cohorts among subjects treated with opakalim and placebo are presented in the tables below.
+Added: Treatment‐emergent adverse events ("TEAEs") Occurring in ≥ 2 Subjects Receiving opakalim in SAD Cohorts
+Added: All AEs reported in the SAD cohorts were mild in severity.
+Added: TEAEs Occurring in ≥ 2 Subjects Receiving opakalim in MAD Cohorts
+Added: All AEs reported in the MAD cohorts were mild in severity, except 1 case of back pain (moderate severity, 40 mg) and 1 case of dizziness (moderate severity, 80 mg).
+Added: a Data are included from a separate study evaluating higher MAD doses.
+Added: b Data are pooled across studies.
+Added: In 2023, we initiated a Phase 1 open-label electroencephalogram ("EEG") study designed to evaluate the effects of opakalim on EEG parameters in healthy adults.
+Added: The study’s objective was to demonstrate opakalim target engagement in the cerebral cortex and to help refine dose selection for Phase 3 trials.
+Added: Study measures included continuous EEG monitoring, time locked pharmacokinetic ("PK") sampling, and changes in EEG spectral power post dose.
+Added: The Phase 1 EEG study was designed to evaluate qualitative changes from baseline in EEG spectral power after administration of single doses of opakalim (10, 25, or 50 mg) to 11 healthy male and female adult volunteers.
+Added: EEG spectral power is a measure derived from quantitative analysis of EEG signals that assesses the amount of rhythmic activity in different frequency bands, including delta [1-3.5 Hz], theta [3.5-7.5 Hz], alpha [7.5-13 Hz], beta [13-30 Hz], and gamma [30-100 Hz].
+Added: Changes in spectral power have been used to evaluate the risk, onset and progression of seizures, assess cognitive and behavioral impairments, and characterize the effects of anti-seizure medications ("ASMs"), and they may also have utility in refining dose selection in clinical trials of ASMs.
+Added: Spectral analysis was performed by Clouds of Care (Ghent, Belgium), a global leader in EEG analytics.
+Added: Interim data from the Phase 1 EEG study were presented in December 2023 at the American Epilepsy Society meeting in Orlando, Florida.
+Added: Opakalim was well-tolerated at all doses studied, without the typical CNS AEs associated with other ASMs, such as somnolence or cognitive/mood disturbances, and EEG data showed dose-dependent increases in brain spectral power in healthy subjects (Figure 1 below).
+Added: Unlike prior reports where EEG effects of a Kv7.2/7.3 activator showed the greatest power increase in the delta frequency band (Biondi et al.
+Added: 2022), the highest spectral power increases with opakalim were seen in alpha, beta, and gamma frequency bands (Figure 2 below).
+Added: While changes in spectral power were observed across all frequency bands with opakalim, the minimal impact on slower frequencies (i.e., delta) is consistent with the low incidence of CNS adverse events, in particular somnolence, seen in the opakalim Phase 1
+Added: SAD/MAD studies.
+Added: EEG delta activity is associated with somnolence, an undesirable CNS adverse event often seen with other ASMs.
+Added: Opakalim shows dose-dependent increases in spectral power over all brain regions.
+Added: Opakalim effect on spectral power in resting -state EEGs.
+Added: Greatest impact observed on alpha frequency with minimal impact on delta and theta frequencies.
+Added: The preliminary EEG study results confirm the CNS activity of opakalim at projected therapeutic concentrations, dose-dependent and time-dependent changes in EEG spectral power, and are consistent with the quantitative EEG effects observed with other ASMs approved for the treatment of epilepsy.
+Added: Based on the results from the EEG study and the safety profile in SAD/MAD trials, along with PK data from a new once-daily extended-release (“ER”) formulation, Biohaven is exploring three oral doses of opakalim (once daily 25 mg ER, once daily 50 mg ER, and once daily 75 mg ER) in the Phase 2/3 clinical trials in epilepsy and mood disorders.
+Added: This dosing approach with a Kv7 activator will allow for assessment of distinct target concentrations over a wide range.
+Added: In December 2024, t the American Epilepsy Society meeting, we presented additional safety data with the opakalim once-daily extended-release formulation, which further demonstrated tolerability.
+Added: Epilepsy affects approximately 3.5 million Americans, or more than 1.2% of adults and 0.6% of children in the U.S., and more than 50 million patients worldwide, according to the World Health Organization (“WHO”).
+Added: It is the fourth most common neurological disorder, and many patients struggle to achieve freedom from seizures, with more than one third of patients requiring two or more medications to manage their epilepsy.
+Added: While the use of anti-seizure medications is often accompanied by dose-limiting side effects, our clinical candidate opakalim is specifically designed to target subtypes of Kv7 potassium channels without engagement of GABA A receptors.
+Added: The lack of GABA A -R activity potentially gives opakalim a wide therapeutic window which we expect to result in an improved side effect profile, limiting the somnolence and fatigue often seen in patients receiving anti-seizure medications.
+Added: We aim to bring this potassium channel modulator as a potential solution to patients with epilepsy who remain uncontrolled on their current regimens.
+Added: Our Clinical Trials for Opakalim in Epilepsy
+Added: Focal Epilepsy
+Added: In January 2024, we completed our End-of-Phase 2 meeting with the FDA to advance to Phase 3 trials and announced that more than 110 global clinical sites have been selected in the first of two focal epilepsy trials.
+Added: Enrollment in our Phase 2/3 program commenced in the first quarter of 2024.
+Added: The two pivotal studies evaluating the efficacy of opakalim in refractory focal epilepsy are planned as randomized, double-blind, placebo-controlled, 8- and 12-week trials with a primary endpoint of change from baseline in 28-day average seizure frequency in adults with focal epilepsy.
+Added: RISE 3 is evaluating 50 mg and 75 mg doses of opakalim (see figure below).
+Added: We expect to report topline results from RISE 3 in the second half of 2026.
+Added: RISE 2 Part A is evaluating 25 and 50 mg doses of opakalim, whereas Part B is evaluating the 75 mg dose of opakalim (see figure below).
+Added: The RISE 2 study was amended to add Part B with the higher 75 mg dose, thereby replicating the potential therapeutic benefits of the higher 75 mg dose in the RISE 3 study and optimizing the overall development plan for opakalim.
+Added: The Company expects estimated enrollment in each study to be 390 participants.
+Added: In addition, Biohaven is currently conducting an open-label extension ("OLE") study to evaluate the long-term efficacy and safety of opakalim in participants who completed either parent study.
+Added: Review of data from the ongoing open-label clinical trial experience with opakalim in focal epilepsy support the potential for opakalim to achieve efficacy and to deliver a favorable and differentiated safety profile.
+Added: Open-label treatment with opakalim demonstrated clinically meaningful reductions in seizure frequency compared to the pretreatment baseline observation period prior to randomization.
+Added: Specifically, 55% of participants showed ≥50% reductions in seizure frequency (≥50% responder rate), for those who completed at least 6 months of treatment with opakalim 75 mg once daily in the open-label study;
+Added: and this result is comparable to the ≥50% responder rate published for other investigational agents in the class such azetukalner (which has reported 56% of patients with a ≥50% responder rate over any consecutive best 6-month period from its Phase 2b OLE data).
+Added: Notably, the antiseizure effects of opakalim were correlated with plasma concentrations, based on a preliminary exposure-response analysis.
+Added: Opakalim was well-tolerated in the open-label study with a low incidence of CNS adverse events, consistent with prior studies with opakalim.
+Added: Myostatin Platform
+Added: Taldefgrobep Alfa (BHV-2000)
+Added: In February 2022, we announced a worldwide license agreement with BMS for the development and commercialization rights to taldefgrobep alfa (also known as BMS-986089), a novel Phase 3 asset.
+Added: Myostatin, a negative regulator of muscle growth, is a key member of the Transforming Growth Factor ("TGF-β") superfamily.
+Added: Taldefgrobep's novelty in a field of myostatin-activin pathway inhibitors is based on the mechanism where it binds to myostatin to both lower overall free myostatin levels, but also to function as a receptor antagonist to block myostatin signaling in skeletal muscles.
+Added: Recently generated data has shown that the taldefgrobep alfa-myostatin complex is stable, and blocks myostatin signaling to both myostatin and to a lesser extent to activin A potentially for a protracted period after cessation of dosing.
+Added: Blocking myostatin and activin signaling has been shown to improve muscle function and strength in a number of disease models for neuromuscular wasting along with physical and metabolic changes important to individuals living with overweight and obesity.
+Added: Blocking activin contributes to decreased adipose tissue and improved glucose homeostasis.
+Added: Clinical studies have confirmed that taldefgrobep improved lean body mass directly through increase on contractile muscle and loss of adipose tissue as demonstrated in both normal healthy volunteers and in patients with Duchenne
+Added: muscular dystrophy (“DMD”).
+Added: The mechanism of increasing overall muscle size and reducing adipose tissue volume provide development opportunities in both neuromuscular disease and individuals living with overweight and obesity.
+Added: The advanced taldefgrobep alfa anti-myostatin development program offers extensive human safety data, especially in the pediatric population.
+Added: Metabolic Disorders
+Added: Obesity is a disease of excess and/or abnormal deposits of adipose tissue and a current global public health crisis.
+Added: By 2030, it is expected that nearly one billion people will be living with obesity, including 50% of the adult and 25% of the adolescent U.S.
+Added: The primary driver of obesity-related morbidity and mortality is metabolically active visceral adipose tissue and associated deposits of adipose tissue in and around organs such as the heart, liver, kidneys, and muscle.
+Added: Taldefgrobep Alfa’s Role in the Management of Overweight and Obesity
+Added: Preclinical and clinical data have demonstrated the potential for anti-myostatin therapies to produce physical and metabolic changes that are highly relevant to individuals living with overweight and obesity, including reducing total body fat and visceral adiposity, and improving insulin sensitivity and bone mineral density, while increasing lean muscle mass.
+Added: Taldefgrobep’s novel mode of action and unique impact on body composition suggest it could be used as monotherapy or in combination with other anti-obesity medications.
+Added: In October 2023, we announced preclinical data demonstrating the ability of taldefgrobep to significantly reduce fat mass while increasing lean mass in an obese mouse model.
+Added: In a mouse model of diet-induced obesity, untreated mice exhibited an increase in fat mass of 31%, while the mice treated with taldefgrobep demonstrated increases in lean mass of 25% from baseline (p≤.0.001) and lost 11% of their baseline fat (p≤.0.001) compared to vehicle (placebo) treated mice.
+Added: Insulin and leptin levels were consistently lower in mice treated with taldefgrobep compared to the untreated mice.
+Added: There was no difference in food intake over time across the taldefgrobep and untreated mice, counter to what has been observed with incretin mimetics (e.g., semaglutide) which are consistently associated with a reduction in energy intake.
+Added: Our Clinical Trial for Taldefgrobep Alfa in Obesity
+Added: In a Phase 1 MAD study conducted by BMS in normal healthy volunteers, the cohort using the projected therapeutic 45mg dose of taldefgrobep demonstrated a continued improvement in lean mass and a reduction in fat mass during the 29 day dosing period that continued to increase through the observation period at 4 weeks post dosing (see figure below).
+Added: In May 2024, we announced preclinical data from a diet induced obesity mouse model, which showed treatment with taldefgrobep alfa together with a glucagon-like peptide-1 ("GLP-1") agonist produced greater reductions in body weight and fat mass, and a larger increase in lean muscle mass, compared to treatment with GLP-1 alone (see figure below).
+Added: Based on non-clinical and clinical data, Biohaven initiated a Phase 2 study of taldefgrobep in the management of obesity in the fourth quarter of 2025 and expects to report topline results in 2026.
+Added: The study will evaluate the ability of taldefgrobep to reduce fat mass and total body weight while increasing lean muscle mass.
+Added: The study is a placebo-controlled study evaluating two dosing schedules of taldefgrobep versus placebo.
+Added: Approximately 150 participants will be randomized to receive taldefgrobep or matching placebo over a 24-week double-blind treatment period followed by an additional 24 weeks of open-label extension during which all participants will receive taldefgrobep.
+Added: Key endpoints include
+Added: the change in total body weight, lean mass, fat mass, and metabolic parameters, along with a comprehensive assessment of safety.
+Added: See below for trial design.
+Added: Previous Clinical Trials
+Added: Taldefgrobep was previously studied by Bristol Meyers Squibb ("BMS") and Roche in 4 completed clinical studies in healthy volunteers and subjects with DMD.
+Added: An estimated 360 subjects received taldefgrobep;
+Added: 179 healthy subjects and 181 subjects with DMD.
+Added: Completed clinical pharmacology studies in healthy adult subjects included:
+Added: • CN001001 was a randomized, placebo-controlled, Phase 1 study designed to evaluate the safety, tolerability, PK, and PD of single and multiple ascending subcutaneous doses of taldefgrobep (vial) in healthy adults.
+Added: • CN001023 was a randomized, open-label, single dose, parallel-group, Phase 1 study designed to compare the bioavailability of subcutaneous injections in the arm, thigh, and abdomen and to evaluate the safety, tolerability, PK, and immunogenicity of taldefgrobep (pre-filled syringe) in healthy adults.
+Added: Completed clinical studies in subjects with DMD included:
+Added: • CN001006 was a multi-site, randomized, placebo-controlled, double-blind, dose-ranging, Phase 1b/2 study to evaluate the safety, tolerability, and PK of taldefgrobep in ambulatory boys with DMD aged ≥ 5 to < 11 years.
+Added: • CN001016 was a randomized, double-blind, placebo-controlled, Phase 2/3 study to assess the efficacy, safety, and tolerability of 2 doses of taldefgrobep in ambulatory boys with DMD aged ≥ 6 to < 12 years.
+Added: All studies supported the safety and tolerability of taldefgrobep with fixed doses from 35 mg up to 180 mg administered weekly, subcutaneously ("SC").
+Added: The pharmacokinetics and safety data from the Phase 1 studies supported the continued development with doses of 35 mg and 50 mg administered weekly SC.
+Added: In the Phase 3 Clinical Study, CN001016, a futility analysis based on this primary endpoint, conducted after approximately 30% of subjects had completed 48 weeks of study drug treatment, did not show any statistically significant treatment differences.
+Added: A summary of the development and outcome from these studies are published (Neurol Ther.
+Added: 2024 Feb;13(1):183-219).
+Added: Other Non-Key Programs
+Added: In the fourth quarter of 2025, we initiated a strategic reprioritization of our development platforms and are now focused on our key programs to prioritize resources.
+Added: As a result, development of programs outside of our key programs (the "non-key programs") may be substantially downsized, paused or delayed.
Glutamate Modulation Platform
−Removed: The most advanced product candidate from our glutamate receptor antagonist platform is troriluzole (previously referred to as trigriluzole and BHV-4157), which is currently in two Phase 3 trials in OCD and, for which our new drug
−Removed: application (“NDA”) in Spinocerebellar Ataxia and marketing authorisation application ("MAA") have been accepted and are currently under review by the U.S.
−Removed: FDA and European Medicines Agency ("EMA"), respectively.
−Removed: Troriluzole is also being evaluated by the Global Coalition for Adaptive Research ("GCAR") as part of Glioblastoma Adaptive Global Innovative Learning Environment - NCT03970447 ("GBM AGILE"), a revolutionary patient-centered, adaptive platform trial for registration that tests multiple therapies for patients with newly-diagnosed and recurrent glioblastoma ("GBM").
+Added: The most advanced product candidate from our glutamate receptor antagonist platform is troriluzole (previously referred to as trigriluzole and BHV-4157).
Other product candidates include BHV-5500, an antagonist of the glutamate N-methyl-D-aspartate (“NMDA”) receptor and its oral prodrug BHV-5000.
131 unchanged sentences
In July 2023, the FDA informed us that it would not review the submitted NDA application for troriluzole given that the study's primary endpoint was not met and thus, would not permit a substantive review.
−Removed: In followup to the regulatory decision on the NDA application, we held followup meetings with the FDA regarding the SCA data.
+Added: In follow-up to the regulatory decision on the NDA application, we held follow-up meetings with the FDA regarding the SCA data.
We had constructive dialogue with the FDA regarding our SCA development program and potential future data analyses to address regulatory concerns in the previously issued refuse-to-file decision on the NDA application for SCA3.
−Removed: In October 2023, the European Medicines Agency ("EMA") informed us that our Marketing Authorization Application ("MAA") for troriluzole (Dazluma) in the treatment of SCA3 was validated and was now under review by EMA's Committee for Medicinal Products for Human Use ("CHMP").
+Added: In October 2023, the European Medicines Agency ("EMA") informed us that our Marketing Authorization Application ("MAA") for troriluzole (Dazluma) in the treatment of SCA3 was validated and was then under review by EMA's Committee for Medicinal Products for Human Use ("CHMP").
In the fourth quarter of 2024, we completed a clarification meeting with the CHMP Rapporteurs.
The MAA documents were subsequently updated with a broader indication to include all SCA genotypes, in light of the new positive BHV4157-206-RWE study data (discussed below).
+Added: In March 2025, we decided to withdraw the troriluzole MAA in the EU for the treatment of adult patients with SCA.
+Added: This withdrawal decision was based on feedback indicating the EMA would not be able to conclude on new active substance ("NAS") status for troriluzole due to insufficient data.
+Added: NAS is an important designation recognizing and incentivizing development innovation, validating the differentiation of a new medicinal product for patients.
+Added: The novelty of troriluzole has been recognized by multiple issued patents globally, and we are committed to expeditiously providing appropriate data and/or argumentation to EMA given the evidence that warrants granting NAS, in the spirit in which the designation was intended.
+Added: We plan to generate data to work with EMA on next steps towards marketing authorization.
In September 2024, we announced positive topline results from pivotal Study BHV4157-206-RWE (NCT06529146) demonstrating the efficacy of troriluzole on the mean change from baseline in the f-SARA after 3 years of treatment.
21 unchanged sentences
In February 2025, the FDA accepted for review our NDA for troriluzole for the treatment of adult patients with SCA and granted priority review.
−Removed: The FDA's decision regarding the NDA is expected during the third quarter of 2025.
−Removed: Based on FDA priority review timelines and if ultimately approved, we are prepared to commercialize troriluzole for SCA in the U.S.
+Added: In November 2025, we received a Complete Response Letter ("CRL") for the NDA seeking approval of troriluzole for SCA.
+Added: In the CRL, the FDA recommended that we meet with the Division of Neurology 1 within the FDA's Office of Neuroscience to discuss the evidence that will be needed to support a future NDA for the treatment of SCA with troriluzole.
+Added: Following receipt of the CRL, we held a Type A meeting with the FDA to initiate an appeal process, given the large number of patients who are currently being treated in the expanded access program.
+Added: We remain committed to working with the FDA to find a path forward for our NDA.
Troriluzole for OCD
−Removed: OCD is a chronic neuropsychiatric disorder characterized by symptoms of obsessions (intrusive thoughts) and compulsions (repetitive behaviors) that can interfere with patients’ functional abilities.
−Removed: According to the National Institute of Mental Health, the 12-month prevalence of OCD is 1% of the U.S.
−Removed: adult population, and approximately half of these cases are characterized as severe.
−Removed: First-line treatment for OCD includes cognitive behavioral therapy, selective serotonin reuptake inhibitors (“SSRIs”) and adjunctive use of atypical antipsychotics.
−Removed: Nonetheless, up to 60% of patients have an inadequate response to conventional intervention strategies and some seek invasive neurosurgical procedures to ameliorate symptoms.
−Removed: We are currently developing troriluzole as a potential treatment option for patients suffering from OCD.
−Removed: Despite the significant public health burden, no novel mechanisms of action have been approved by the FDA for OCD in over two decades.
−Removed: The rationale for use of troriluzole in OCD is supported by clinical data with its active metabolite, riluzole, in populations with OCD in open-label and placebo-controlled clinical trials as well as in preclinical, genetic and neuroimaging studies implicating the glutamatergic hyperactivity in the pathogenesis of OCD.
−Removed: In multiple case studies, the use of riluzole in patients with refractory OCD has commonly been associated with meaningful improvement of symptoms.
−Removed: A small-scale randomized controlled trial in adults with OCD conducted by a third party showed favorable trends for the use of riluzole in an outpatient setting.
−Removed: Another randomized controlled third-party study demonstrated statistically significant therapeutic effects with the adjunctive use of riluzole as compared to adjunctive placebo in 50 adults with refractory OCD.
−Removed: These clinical effects are consistent with findings such as genetic associations of glutamate transporter genes with OCD and increased glutamate concentrations in brain and cerebrospinal fluid of patients with OCD.
−Removed: Taken together, we believed there was a clear rationale for advancement of troriluzole, a prodrug of riluzole, into a Phase 2 proof-of-concept trial in OCD.
−Removed: We commenced a Phase 2/3 double-blind, randomized controlled trial on the use of troriluzole in adults with OCD in late 2017.
−Removed: Results from the Phase 2/3 trial were announced in June 2020.
−Removed: Troriluzole 200 mg administered once daily as adjunctive therapy in OCD patients with inadequate response to standard of care treatment showed consistent numerical improvement over placebo on the Yale-Brown Obsessive Compulsive Scale (“Y-BOCS”) at all study timepoints (weeks 4 to 12) but did not meet the primary endpoint at week 12.
−Removed: Troriluzole treated subjects (n = 111) had a mean Y-BOCS improvement of -3.4 points from baseline versus -2.9 for placebo-treated (n = 115) subjects [difference -0.5 and p-value = 0.451] at week 4, -5.1 points (n = 96) versus -3.6 for placebo-treated (n = 108) subjects [difference -1.5 and p-value = 0.041] at week 8, and -5.9 points (n = 99) versus -4.9 for placebo-treated (n = 102) subjects [difference -1.0 and p-value = 0.220] at week 12.
−Removed: Troriluzole’s safety profile was generally consistent with past clinical trial experience with its active metabolite, riluzole.
−Removed: Treatment emergent adverse events (“TEAEs”) were mostly reported to be mild in intensity.
−Removed: TEAEs that occurred in at least 5% of patients in the troriluzole group, and more frequently in the troriluzole group than in the placebo group, were headache, dizziness, fatigue, somnolence, nausea and nasopharyngitis.
−Removed: Given the strong signal in the Phase 2/3 proof-of-concept study and after receiving feedback from the FDA in an End of Phase 2 meeting, in December 2020, we initiated enrollment in a Phase 3 program.
−Removed: The Phase 3 program will have an estimated total enrollment of up to 700 participants in each trial with a primary endpoint of change from baseline on the Y-BOCS total score at week 4, 8 and 10.
−Removed: The two Phase 3 randomized, double-blind, placebo-controlled trials that make-up our Phase 3 program for OCD are currently ongoing.
−Removed: In January 2024, we announced plans to conduct a pre-planned interim analysis ("IA") to evaluate efficacy in the first of our two Phase 3 studies in OCD.
−Removed: The IA was planned to be conducted by an independent Data Monitoring Committee ("DMC") after approximately 70% of subjects in the primary analysis population reached the primary endpoint.
−Removed: The Data Monitoring Committee convened in the second quarter of 2024 to review the IA and informed the Company that the study may continue.
−Removed: As such, we continue enrolling patients in the first Phase 3 study in OCD and expect that this study will be fully enrolled in the first quarter of 2025.
−Removed: We expect to report topline data from the first Phase 3 study in OCD in the first half of 2025.
−Removed: There was a similarly designed pre-planned IA for the second Phase 3 study in OCD conducted in the fourth quarter of 2024, and the DMC also informed us that this study may continue.
−Removed: We expect to report topline data from the second Phase 3 study in OCD in the second half of 2025.
+Added: We commenced a Phase 2/3 double-blind, randomized, controlled trial to assess the efficacy of troriluzole in adults with obsessive-compulsive disorder ("OCD").
+Added: This trial was followed by two Phase 3 randomized, double-blind, placebo-controlled trials.
+Added: The first Phase 3 study in OCD was completed with no efficacy signal detected.
+Added: Given the results of the first study, enrollment in the OCD program was closed to allow resources to be applied to other development programs.
Troriluzole for Glioblastoma
25 unchanged sentences
Myostatin Platform
−Removed: Taldefgrobep Alfa (BHV-2000)
−Removed: In February 2022, we announced a worldwide license agreement with BMS for the development and commercialization rights to taldefgrobep alfa (also known as BMS-986089), a novel Phase 3 asset.
−Removed: Myostatin, a negative regulator of muscle growth, is a key member of the Transforming Growth Factor ("TGF-β") superfamily.
−Removed: Taldefgrobep's novelty in a field of myostatin inhibitors is based on the mechanism where it binds to myostatin to both lower overall free myostatin levels, but also to function as a receptor antagonist to block myostatin signaling in skeletal muscles.
−Removed: Recently generated data has shown that the taldefgrobep alfa-myostatin complex is stable, and blocks myostatin signaling to both myostatin and to a lesser extent to activin A potentially for a protracted period after cessation of dosing.
−Removed: Blocking myostatin activity and signaling has shown to improve muscle function and strength in a number of disease models for neuromuscular wasting along with physical and metabolic changes important to individuals living with overweight and obesity.
−Removed: Blocking activin contributes to decreased adipose tissue and improved glucose homeostasis.
−Removed: Clinical studies have confirmed that taldefgrobep improved lean body mass directly through increase on contractile muscle and loss of adipose tissue as demonstrated in both normal healthy volunteers and in patients with Duchenne muscular dystrophy (“DMD”).
−Removed: The mechanism of increasing overall muscle size and reducing adipose tissue volume provide development opportunities in both neuromuscular disease and individuals living with overweight and obesity.
−Removed: The advanced taldefgrobep alfa anti-myostatin development program offers extensive human safety data, especially in the pediatric population.
−Removed: Previous Clinical Trials
−Removed: Taldefgrobep was previously studied by Bristol Meyers Squibb ("BMS") and Roche in 4 completed clinical studies in healthy volunteers and subjects with DMD.
−Removed: An estimated 360 subjects received taldefgrobep;
−Removed: 179 healthy subjects and 181 subjects with DMD.
−Removed: Completed clinical pharmacology studies in healthy adult subjects included:
−Removed: • CN001001 was a randomized, placebo-controlled, Phase 1 study designed to evaluate the safety, tolerability, PK, and PD of single and multiple ascending subcutaneous doses of taldefgrobep (vial) in healthy adults.
−Removed: • CN001023 was a randomized, open-label, single dose, parallel-group, Phase 1 study designed to compare the bioavailability of subcutaneous injections in the arm, thigh, and abdomen and to evaluate the safety, tolerability, PK, and immunogenicity of taldefgrobep (pre-filled syringe) in healthy adults.
−Removed: Completed clinical studies in subjects with DMD included:
−Removed: • CN001006 was a multi-site, randomized, placebo-controlled, double-blind, dose-ranging, Phase 1b/2 study to evaluate the safety, tolerability, and PK of taldefgrobep in ambulatory boys with DMD aged ≥ 5 to < 11 years.
−Removed: • CN001016 was a randomized, double-blind, placebo-controlled, Phase 2/3 study to assess the efficacy, safety, and tolerability of 2 doses of taldefgrobep in ambulatory boys with DMD aged ≥ 6 to < 12 years.
−Removed: All studies supported the safety and tolerability of taldefgrobep with fixed doses from 35 mg up to 180 mg administered weekly, subcutaneously ("SC").
−Removed: The pharmacokinetics and safety data from the Phase 1 studies supported the continued development with doses of 35 mg and 50 mg administered weekly SC.
−Removed: In the Phase 3 Clinical Study, CN001016, a futility analysis based on this primary endpoint, conducted after approximately 30% of subjects had completed 48 weeks of study drug treatment, did not show any statistically significant
−Removed: treatment differences.
−Removed: A summary of the development and outcome from these studies are published (Neurol Ther.
−Removed: 2024 Feb;13(1):183-219).
−Removed: There are significant differences between a neuromuscular (DMD) and neurodegenerative disease (SMA).
−Removed: The differences in residual muscle in SMA along with adjunctive survival of motor neuron (“SMN”) upregulation therapy support the continued development of taldefgrobep alfa in SMA.
−Removed: Spinal Muscular Atrophy
+Added: Taldefgrobep Alfa (BHV-2000) for Spinal Muscular Atrophy
SMA is a rare genetic neurodegenerative disorder characterized by the loss of motor neurons, atrophy of the voluntary muscles of the limbs and trunk and progressive muscle weakness that is often fatal and typically diagnosed in young children.
3 unchanged sentences
states and covers over 94% of all births.
+Added: In February 2023, we received Fast Track designation from the FDA for taldefgrobep alfa for the treatment of SMA.
+Added: We received orphan drug designation from the FDA for taldefgrobep in the treatment of SMA in December 2022 and from the European Commission in July 2023.
+Added: In April 2024, we announced that the FDA granted "rare pediatric disease" designation for taldefgrobep alfa.
+Added: The designation provides for the potential for taldefgrobep to receive a priority review voucher (“PRV”) if ultimately approved for the indication of SMA prior to September 30, 2026.
+Added: The rare pediatric disease PRV program began to sunset in December 2024 and will not apply for approvals after September 30, 2026.
+Added: Taldefgrobep Alfa’s Role in Spinal Muscular Atrophy
+Added: In the past few years, significant advancements were made to address the underlying cause of disease in SMA with the up-regulation of SMN1 and SMN2 expression which positions taldefgrobep as a potential combination therapy to enhance muscle performance.
+Added: Data from an SMA animal model study that shows advantages of combination SMN therapy with taldefgrobep and the extensive clinical data in DMD supported the advancement of taldefgrobep into a SMA Phase 3 study.
+Added: Other indications in muscle wasting diseases may be a follow-on for taldefgrobep along with other life-cycle opportunities.
Our Clinical Trial for Taldefgrobep Alfa in SMA
9 unchanged sentences
Additional analyses of these subjects (n=123) who had measurable baseline myostatin (the pharmacological target of taldefgrobep) showed an improved efficacy signal within this myostatin-positive population (p=0.02).
−Removed: Prespecified outcome measures in the overall study population analyzing the change from baseline in body composition at Week 48 demonstrated a greater reduction in the percent change in total body fat mass in the taldefgrobep arm compared to the placebo+SOC arm (p=0.008) as measured by dual energy x-ray absorptiometry ("DXA").
+Added: Prespecified outcome measures in the overall study population analyzing the change from baseline in body composition at Week 48 demonstrated a greater reduction in the percent change in total body fat mass in the taldefgrobep arm compared to the placebo+SOC arm (p=0.008) as measured by dual energy x-ray absorptiometry.
The taldefgrobep arm also showed numerically larger increases in lean muscle mass and bone density compared to the placebo+SOC arm.
−Removed: Biohaven plans to engage the FDA in the first half of 2025 to discuss the potential registrational path forward and will present the study data at an upcoming conference.
+Added: Biohaven has begun engagement with the FDA to discuss the potential registrational path forward.
+Added: Data from the study was presented at the Cure SMA meeting in June 2025.
The optional long-term extension phase of the trial will remain ongoing pending further data analysis as well as regulatory discussions.
−Removed: In February 2023, we received Fast Track designation from the FDA for taldefgrobep alfa for the treatment of SMA.
−Removed: Fast Track designation enables important new drugs to reach patients earlier by facilitating more frequent communications with the FDA and expeditious review of a drug which treats a serious condition and fills an unmet medical need.
−Removed: In December 2022, we received orphan drug designation from the FDA for taldefgrobep in the treatment of SMA and from the European Commission in July 2023.
−Removed: In April 2024, we announced that the FDA granted "rare pediatric disease" designation for taldefgrobep alfa.
−Removed: The designation provides for the potential for taldefgrobep to receive a priority review voucher (“PRV”) if ultimately approved for the indication of SMA prior to September 30, 2026.
−Removed: The rare pediatric disease PRV program began to sunset in December 2024 and will not apply for approvals after September 30, 2026.
−Removed: Taldefgrobep Alfa’s Role in Spinal Muscular Atrophy
−Removed: In the past few years, significant advancements were made to address the underlying cause of disease in SMA with the up-regulation of SMN1 and SMN2 expression which positions taldefgrobep as a potential combination therapy to enhance muscle performance.
−Removed: Data from an SMA animal model study that shows advantages of combination SMN therapy with taldefgrobep and the extensive clinical data in DMD support the advancement of taldefgrobep into a SMA
−Removed: Phase 3 study.
−Removed: Other indications in muscle wasting diseases may be a follow-on for taldefgrobep along with other life-cycle opportunities.
−Removed: Metabolic Disorders
−Removed: Obesity is a disease of excess and/or abnormal deposits of adipose tissue and a current global public health crisis.
−Removed: By 2030, it is expected that nearly one billion people will be living with obesity, including 50% of the adult and 25% of the adolescent U.S.
−Removed: The primary driver of obesity-related morbidity and mortality is metabolically active visceral adipose tissue and associated deposits of adipose tissue in and around organs such as the heart, liver, kidneys, and muscle.
−Removed: Taldefgrobep Alfa’s Role in the Management of Overweight and Obesity
−Removed: Preclinical and clinical data have demonstrated the potential for anti-myostatin therapies to produce physical and metabolic changes that are highly relevant to individuals living with overweight and obesity, including reducing total body fat and visceral adiposity, and improving insulin sensitivity and bone mineral density, while increasing lean muscle mass.
−Removed: Taldefgrobep’s novel mode of action and unique impact on body composition suggest it could be used as monotherapy or in combination with other anti-obesity medications.
−Removed: In October 2023, we announced preclinical data demonstrating the ability of taldefgrobep to significantly reduce fat mass while increasing lean mass in an obese mouse model.
−Removed: In a mouse model of diet-induced obesity, untreated mice exhibited an increase in fat mass of 31%, while the mice treated with taldefgrobep demonstrated increases in lean mass of 25% from baseline (p≤.0.001) and lost 11% of their baseline fat (p≤.0.001) compared to vehicle (placebo) treated mice.
−Removed: Insulin and leptin levels were consistently lower in mice treated with taldefgrobep compared to the untreated mice.
−Removed: There was no difference in food intake over time across the taldefgrobep and untreated mice, counter to what has been observed with incretin mimetics (e.g., semaglutide) which are consistently associated with a reduction in energy intake.
−Removed: Our Clinical Trial for Taldefgrobep Alfa in Obesity
−Removed: In a Phase 1 MAD study conducted by BMS in normal healthy volunteers, the cohort using the projected therapeutic 45mg dose of taldefgrobep demonstrated a continued improvement in lean mass and a reduction in fat mass during the 29 day dosing period that continued to increase through the observation period at 4 weeks post dosing (see figure below).
−Removed: In May 2024, we announced preclinical data from a diet induced obesity mouse model, which showed treatment with taldefgrobep alfa together with a glucagon-like peptide-1 ("GLP-1") agonist produced greater reductions in body weight and fat mass, and a larger increase in lean muscle mass, compared to treatment with GLP-1 alone (see figure below).
−Removed: We plan to initiate a Phase 2 clinical trial of taldefgrobep in the management of metabolic disease in the first half of 2025.
−Removed: We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.
Ion Channel Platform
−Removed: Kv7 Platform Acquisition
−Removed: In February 2022, we announced that we entered into a definitive agreement with Channel Biosciences, LLC, a subsidiary of Knopp Biosciences, LLC, to acquire a drug discovery platform targeting Kv7 ion channels, adding the latest advances in ion channel modulation to our growing neuroscience portfolio.
−Removed: Kv7’s Role in Epilepsy, Mood Disorders, and Other Central Nervous System Disorders
−Removed: Because of their fundamental role in health and their aberrant role in disease, ion channels in cell membranes represent a broad and important class of drug targets.
−Removed: Sodium channels and potassium channels form the ionic basis of the action potential in electrically charged cells throughout the body (see figures below).
−Removed: The Kv7 protein in particular forms a channel that exquisitely regulates the flow of charged potassium ions (K+) across cell membranes, repolarizing nerve cells and resetting them for normal action potential firing.
−Removed: Kv7 channels include a family of channel subtypes, designated as Kv7.1 through Kv7.5, and they are formed by tetramers of identical or compatible subunits.
−Removed: Some of these channel subtypes localize in nerve cells (neurons) while others can be found in cardiac muscle, smooth muscle, and other tissue types.
−Removed: The Kv7 subunits, Kv7.2 and Kv7.3, are widely expressed in the brain, notably in the cortex and hippocampus, and together they form Kv7.2/7.3 heteromeric channels that produce the M-current ( I KM ), a critical regulator of neuronal excitability (see figures below).
−Removed: Kv7.2/7.3 channels normally perform a natural “braking” function by regulating the electrical excitability and hyperexcitability of brain cells.
−Removed: Dysfunction of these channels, due to genetic mutations or other factors, increases seizure risk, while augmenting the ‘open’ activity of these channels has been demonstrated to reduce neuronal hyperexcitability and seizure frequency in electrophysiology laboratories, in animal models, and, most importantly, in patients.
−Removed: White, Role of Potassium Channel Ions in Epilepsy, Medscape.org
−Removed: We are synthesizing novel Kv7.2/7.3 activators that improve on the selectivity, potency, and other characteristics of ezogabine (Potiga in the U.S.
−Removed: and Trobalt (retigabine) in Europe), a drug approved in 2011 for the treatment of refractory epilepsy and voluntarily withdrawn from the market in 2017 because of poor tolerability and structure-related toxicities that limited its clinical use, and ezogabine-like compounds, while averting its negative attributes, including off-target activity at a different brain ion channel, gamma-aminobutyric acid (“GABA”) A receptor (“GABA A -R”).
−Removed: Using a structure-based approach, supplemented by in silico modeling, we have identified structural features of our molecules critical to Kv7 activation.
−Removed: We have applied these analyses to the generation of proprietary chemical leads structurally distinct from known Kv7 activators, including ezogabine and flupirtine, the only other approved Kv7 modulator, approved in Europe for the treatment of acute pain.
−Removed: Our team has synthesized a large library of Kv7-activating molecules and are advancing them according to stringent criteria requiring improvements over ezogabine, including chemical stability, synthetic tractability, the avoidance of structural motifs associated with the generation of reactive metabolites and other unwanted, off-target activity, including GABA A -R activation.
−Removed: Epilepsy, Major Depressive Disorder ("MDD"), and Bipolar Disorder are the initial indications we are targeting with activators from our Kv7 platform.
−Removed: In addition to their role in treating epilepsy, anti-seizure medications ("ASMs") are often
−Removed: used in the management of bipolar disorder and Kv7 activators have recently shown great promise in the the treatment of MDD.
−Removed: While the use of ASMs is often accompanied by dose-limiting side effects, our Kv7 activators are specifically designed to target subtypes of Kv7 potassium channels without engagement of GABA A receptors.
−Removed: The lack of GABA A -R activity potentially gives activators from our Kv7 platform a wide therapeutic window and is expected to result in an improved side effect profile, limiting the somnolence and fatigue often seen in patients receiving ASMs.
−Removed: BHV-7000 (formerly known as KB-3061), the lead asset from the Kv7 platform, is a potent Kv7.2/7.3 ion channel activator from a novel, bicyclic imidazole class that is structurally-distinct from other Kv7 modulators (e.g., ezogabine and related aniline compounds) with significant in vivo anticonvulsant activity and a wide therapeutic index.
−Removed: In the most widely used and positively-predictive preclinical model of epilepsy, the maximal electroshock (“MES”) model, data for BHV-7000 and ezogabine were collected in independent experiments (see figures below), measuring the activity of both compounds in preventing seizures (ED50) and recording the neurologic deficit five minutes prior to the MES test to calculate the tolerability index (“TI”).
−Removed: The neurologic deficit is a behavioral index ranging from normal activity (score of 0) to a loss of righting reflex (score of 3).
−Removed: As shown below, BHV-7000 was demonstrated to have an ED50 = 0.5 mg/kg with almost no impact on behavior producing a TI > 40x.
−Removed: In a separate rotarod experiment of preclinical tolerability, BHV-7000 had no impact on rat motor behavior up to 30 mg/kg, the highest dose tested.
−Removed: In contrast, ezogabine was 40x less potent (ED50 = 20 mg/kg) in the MES model with a narrow TI < 3x.
−Removed: The narrow preclinical TI for ezogabine is consistent with the clinical experience with the drug where side effects such as somnolence and dizziness limited its use at doses that prevented seizures in patients.
−Removed: Phase 1 Clinical Development
−Removed: In the second quarter of 2022, our Clinical Trial Application for BHV-7000 was approved by Health Canada, and we subsequently began phase 1 clinical development.
−Removed: First-in-human single ascending dose ("SAD") and multiple ascending dose ("MAD") studies have now been completed.
−Removed: In the SAD and MAD cohorts, 77 subjects received BHV-7000 (N=58) or placebo (N= 19).
−Removed: Thirty-nine SAD subjects were randomized to BHV-7000 or placebo and thirty-eight MAD subjects were
−Removed: randomized to BHV-7000 or placebo.
−Removed: The rates of adverse events ("AEs") by MedDRA System Organ Class across the pooled SAD and MAD cohorts among subjects treated with BHV-7000 and placebo are presented in the tables below.
−Removed: Treatment‐emergent adverse events ("TEAEs") Occurring in ≥ 2 Subjects Receiving BHV-7000 in SAD Cohorts
−Removed: All AEs reported in the SAD cohorts were mild in severity.
−Removed: TEAEs Occurring in ≥ 2 Subjects Receiving BHV-7000 in MAD Cohorts
−Removed: All AEs reported in the MAD cohorts were mild in severity, except 1 case of back pain (moderate severity, 40 mg) and 1 case of dizziness (moderate severity, 80 mg).
−Removed: a Data are included from a separate study evaluating higher MAD doses.
−Removed: b Data are pooled across studies.
−Removed: In 2023, we initiated a Phase 1 open-label electroencephalogram ("EEG") study designed to evaluate the effects of BHV-7000 on EEG parameters in healthy adults.
−Removed: The study’s objective was to demonstrate BHV-7000 target engagement in the cerebral cortex and to help refine dose selection for Phase 3 trials.
−Removed: Study measures included continuous EEG monitoring, time locked pharmacokinetic ("PK") sampling, and changes in EEG spectral power post dose.
−Removed: The Phase 1 EEG study was designed to evaluate qualitative changes from baseline in EEG spectral power after administration of single doses of BHV-7000 (10, 25, or 50 mg) to 11 healthy male and female adult volunteers.
−Removed: EEG spectral power is a measure derived from quantitative analysis of EEG signals that assesses the amount of rhythmic activity in different frequency bands, including delta [1-3.5 Hz], theta [3.5-7.5 Hz], alpha [7.5-13 Hz], beta [13-30 Hz], and gamma [30-100 Hz].
−Removed: Changes in spectral power have been used to evaluate the risk, onset and progression of seizures, assess cognitive and behavioral impairments, and characterize the effects of anti-seizure medications ("ASMs"), and they may also have utility in refining dose selection in clinical trials of ASMs.
−Removed: Spectral analysis was performed by Clouds of Care (Ghent, Belgium), a global leader in EEG analytics.
−Removed: Interim data from the Phase 1 EEG study were presented in December 2023 at the American Epilepsy Society meeting in Orlando, Florida.
−Removed: BHV-7000 was well-tolerated at all doses studied, without the typical CNS AEs associated with other ASMs, such as somnolence or cognitive/mood disturbances, and EEG data showed dose-dependent increases in brain spectral power in healthy subjects (Figure 1 below).
−Removed: Unlike prior reports where EEG effects of a Kv7.2/7.3 activator showed the greatest power increase in the delta frequency band (Biondi et al.
−Removed: 2022), the highest spectral power increases with BHV-7000 were seen in alpha, beta, and gamma frequency bands (Figure 2 below).
−Removed: While changes in spectral power were observed across all frequency bands with BHV-7000, the minimal impact on slower frequencies (i.e., delta) is consistent with the low incidence of CNS adverse events, in particular somnolence, seen in the BHV-7000 Phase 1
−Removed: SAD/MAD studies.
−Removed: EEG delta activity is associated with somnolence, an undesirable CNS adverse event often seen with other ASMs.
−Removed: BHV-7000 shows dose-dependent increases in spectral power over all brain regions.
−Removed: BHV-7000 effect on spectral power in resting -state EEGs.
−Removed: Greatest impact observed on alpha frequency with minimal impact on delta and theta frequencies.
−Removed: The preliminary EEG study results confirm the CNS activity of BHV-7000 at projected therapeutic concentrations, dose-dependent and time-dependent changes in EEG spectral power, and are consistent with the quantitative EEG effects observed with other ASMs approved for the treatment of epilepsy.
−Removed: Based on the results from the EEG study and the safety profile in SAD/MAD trials, along with PK data from a new once-daily extended-release (“ER”) formulation, Biohaven is exploring three oral doses of BHV-7000 (once daily 25 mg ER, once daily 50 mg ER, and once daily 75 mg ER) in the Phase 2/3 clinical trials in epilepsy and mood disorders.
−Removed: approach with a Kv7 activator will allow for assessment of distinct target concentrations over a wide range, above and below projected efficacious EC50 drug concentrations (Figure 3), not previously feasible with drugs in this class.
−Removed: Predicted PK profile of BHV-7000 ER, mean predicted concentration vs.
−Removed: time profiles for 25 mg ER, 50 mg ER and 75 mg ER once-daily dosing at steady state relative to EC20 and EC50 (EC values from preclinical MES models).
−Removed: In December 2024, t the American Epilepsy Society meeting, we presented additional safety data with the BHV-7000 once-daily extended-release formulation, which further demonstrated tolerability.
−Removed: Epilepsy affects approximately 3.5 million Americans, or more than 1.2% of adults and 0.6% of children in the U.S., and more than 50 million patients worldwide, according to the World Health Organization (“WHO”).
−Removed: It is the fourth most common neurological disorder, and many patients struggle to achieve freedom from seizures, with more than one third of patients requiring two or more medications to manage their epilepsy.
−Removed: While the use of anti-seizure medications is often accompanied by dose-limiting side effects, our clinical candidate BHV-7000 is specifically designed to target subtypes of Kv7 potassium channels without engagement of GABA A receptors.
−Removed: The lack of GABA A -R activity potentially gives BHV-7000 a wide therapeutic window which we expect to result in an improved side effect profile, limiting the somnolence and fatigue often seen in patients receiving anti-seizure medications.
−Removed: We aim to bring this potassium channel modulator as a potential solution to patients with epilepsy who remain uncontrolled on their current regimens.
−Removed: Our Clinical Trials for BHV-7000 in Epilepsy
−Removed: Focal Epilepsy
−Removed: In January 2024, we completed our End-of-Phase 2 meeting with the FDA to advance to Phase 3 trials and announced that more than 110 global clinical sites have been selected in the first of two focal epilepsy trials.
−Removed: Enrollment in our Phase 2/3 program commenced in the first quarter of 2024.
−Removed: The two pivotal studies evaluating the efficacy of BHV-7000 in refractory focal epilepsy are planned as randomized, double-blind, placebo-controlled, 8- and 12-week trials with a primary endpoint of change from baseline in 28-day average seizure frequency in adults with focal epilepsy.
−Removed: One of the focal epilepsy studies will evaluate 25 mg and 50 mg doses of BHV-7000 and the second study will evaluate 50 mg and
−Removed: 75 mg doses of BHV-7000 (see figures below).
−Removed: We expect to report topline results from the first study in the first half of 2026.
−Removed: Idiopathic Generalized Epilepsy
−Removed: In addition to the focal epilepsy program, we initiated a Phase 2/3 study of BHV-7000 in idiopathic generalized epilepsy ("IGE") in the second quarter of 2024.
−Removed: The pivotal study evaluating the efficacy of BHV-7000 with IGE is planned as a randomized, double-blind, placebo-controlled 24-week time-to-event trial with a primary endpoint of time to second generalized seizure in adults and adolescents with IGE (see figure below).
+Added: Opakalim (BHV-7000)
+Added: As previously discussed, Opakalim is an activator of Kv7.2/Kv7.3, a key ion channel involved in neuronal signaling and in regulating the hyperexcitable state in epilepsy.
Mood disorders
5 unchanged sentences
Major depressive disorder ("MDD") is a leading cause of morbidity.
−Removed: Approximately 8.3% of adults in the U.S.
−Removed: have had at least one major depressive episode;
−Removed: accordingly, there is an urgent need for more effective treatments.
+Added: With approximately 8.3% of adults in the U.S.
+Added: having had at least one major depressive episode, there is an urgent need for more effective treatments.
Within the current armamentarium of treatments nearly one third of patients fail to respond.
−Removed: Kv7 activation has emerged as a novel strategy to treat and prevent depressive episodes and holds significant potential as a novel treatment for patients with
+Added: Kv7 activation has emerged as a novel strategy to treat and prevent depressive episodes and holds significant potential as a novel treatment for patients with MDD.
The therapeutic role for Kv7 activation in MDD is supported by a broad range of epigenetic, mechanistic, preclinical, and clinical evidence.
2 unchanged sentences
Recent randomized, controlled clinical trials of Kv7 activators demonstrated efficacy in MDD.
−Removed: Together, these data, coupled with the favorable clinical safety and tolerability profile exhibited by BHV 7000 to date, provide a compelling rationale for the evaluation of Kv7 activation with BHV-7000 in MDD.
−Removed: Our Clinical Trial for BHV-7000 in Major Depressive Disorder
−Removed: We initiated a Phase 2 clinical trial with BHV-7000 for the treatment of MDD in the second quarter of 2024.
−Removed: The study is a 6 week, randomized, double-blind, placebo-controlled trial in approximately 300 subjects, with a primary endpoint of measurement on the Montgomery-Asberg Depression Rating Scale ("MADRS").
−Removed: See figure below for trial design.
−Removed: We expect to report topline results from the study in the second half of 2025.
+Added: Together, these data, coupled with the favorable clinical safety and tolerability profile exhibited by BHV 7000 to date, provided a compelling rationale for the evaluation of Kv7 activation with opakalim in MDD.
+Added: Our Clinical Trial for opakalim in Major Depressive Disorder
+Added: We initiated a Phase 2 clinical trial with opakalim for the treatment of MDD in the second quarter of 2024.
+Added: The study is a six week, randomized, double-blind, placebo-controlled trial in approximately 300 subjects, with a primary endpoint of measurement on the Montgomery-Asberg Depression Rating Scale ("MADRS").
+Added: In December 2025, we announced that the study did not meet its primary endpoint.
+Added: Trends favoring opakalim were observed in some clinically relevant subgroups, including participants with more severe depression at screening and baseline, on primary and secondary outcome measures.
+Added: Overall, BHV-7000 was safe and well-tolerated with adverse events mostly mild and moderate in intensity and largely resolved spontaneously.
+Added: The only individual adverse events occurring with an incidence above 5% were headache (10.7% and 9.9% in opakalim and placebo, respectively) and nausea (4.2% and 5.6% in BHV-7000 and placebo, respectively).
+Added: A low incidence of central nervous system adverse events was observed, consistent with BHV-7000's lack of GABA activity and with safety data from previously reported studies.
+Added: Additional analyses are ongoing and the company plans to present the results at an upcoming scientific meeting.
+Added: The company considers the depression subgroup analyses as hypothesis generating but based upon strategic prioritization of its portfolio does not plan on additional psychiatric clinical trials to keep resources focused on key priority areas.
Bipolar disorder
6 unchanged sentences
Preclinical and pilot clinical data similarly suggest a potential therapeutic role for Kv7 activation in bipolar disorder, which is expected to result in an improved side effect profile compared to other anti-seizure medications.
−Removed: Our Clinical Trial for BHV-7000 in Bipolar Disorder
−Removed: We initiated a Phase 2/3 clinical trial with BHV-7000 for the treatment of bipolar disorder in the second quarter of 2024.
+Added: Our Clinical Trial for opakalim in Bipolar Disorder
+Added: We initiated a Phase 2/3 clinical trial with opakalim for the acute treatment of bipolar disorder in the second quarter of 2024.
The study was a 3 week, randomized, double-blind, placebo-controlled trial in approximately 256 subjects, with a primary endpoint of measurement on the Young Mania Rating Scale ("YMRS").
−Removed: See below for trial design detail.
−Removed: In March 2025, the Company completed a focused topline analysis of treatment with BHV-7000 in the acute treatment of manic episodes associated with bipolar disorder in a 3-week trial.
−Removed: BHV-7000 did not statistically differentiate from the comparator arm on the primary efficacy endpoint of improvement from Baseline to Day 21 on the YMRS.
+Added: In March 2025, the Company completed the Phase 2/3 clinical trial for acute treatment of manic episodes associated with bipolar disorder.
+Added: Opakalim did not statistically differentiate from the comparator arm on the primary efficacy endpoint of improvement from Baseline to Day 21 on the YMRS.
Additional analyses are ongoing, and complete study results will be presented at an upcoming scientific meeting.
−Removed: BHV-7000 75 mg once daily, the highest dose of BHV-7000 being evaluated in Phase 2/3 trials, was safe and well-tolerated in this study.
+Added: Opakalim 75 mg once daily, the highest dose of opakalim being evaluated in Phase 2/3 trials, was safe and well-tolerated in this study.
No adverse trends in vital signs, ECGs, or labs were noted.
8 unchanged sentences
Identification of genetic etiologies has created the opportunity to treat not just the symptoms of KCNQ2-DEE, including seizures, but also the underlying causes, including attenuating or reversing the effects of the disease-causing variants.
−Removed: In addition to its activity in the MES model, we explored the ability of BHV-7000 to reverse the reduced current density associated with KCNQ2-DEE and support its use as potential treatment for the disease).
−Removed: To determine the effects of BHV-7000 on the function of Kv7.2 and Kv7.2/7.3 channels poisoned by dominant-negative KCNQ2 mutations, four highly recurrent human missense variants known to cause KCNQ2-DEE were evaluated in an in vitro model measuring current density in cells expressing the pathologic proteins.
−Removed: The figure below shows the effects of BHV-7000 on current density of wt/wt Kv7.2 channels and those formed by 1:1 coexpression of wt KCNQ2 genes with four disease-causing KCNQ2 variants (T274M, A294V, R581L, R210H).
−Removed: In the control condition, all pathogenic variants produced a marked reduction in current density to below wt/wt levels.
−Removed: BHV-7000 at either 0.3µM or 1.0 µM restored current density in all mutated channels to or beyond wt control current density (**<0.01).
−Removed: BHV-7000 has been granted Rare Pediatric Disease Designation by the U.S.
−Removed: Food and Drug Administration ("FDA") for the treatment of KCNQ2-DEE.
+Added: In addition to its activity in the MES model, we explored the ability of opakalim to reverse the reduced current density associated with KCNQ2-DEE and support its use as potential treatment for the disease).
+Added: To determine the effects of opakalim on the function of Kv7.2 and Kv7.2/7.3 channels poisoned by dominant-negative KCNQ2 mutations, four highly recurrent human missense variants known to cause KCNQ2-DEE were evaluated in an in vitro model measuring current density in cells expressing the pathologic proteins.
+Added: The figure below shows the effects of opakalim on current density of wt/wt Kv7.2 channels and those formed by 1:1 coexpression of wt KCNQ2 genes with four disease-causing KCNQ2 variants (T274M, A294V, R581L, R210H).
+Added: In the control
+Added: condition, all pathogenic variants produced a marked reduction in current density to below wt/wt levels.
+Added: Opakalim at either 0.3µM or 1.0 µM restored current density in all mutated channels to or beyond wt control current density (**<0.01).
+Added: Opakalim has been granted Rare Pediatric Disease Designation by the FDA for the treatment of KCNQ2-DEE.
Neuropathic Pain
3 unchanged sentences
Initial or first line treatment for neuropathic pain includes non-opioid analgesics, in particular, antidepressants, anticonvulsants, steroids, and anxiolytics.
−Removed: Second line treatment of persistent,
−Removed: severe pain may require escalation to opiates, often less potent ones at first, followed by more potent opiates for intense refractory pain.
+Added: Second line treatment of persistent, severe pain may require escalation to opiates, often less potent ones at first, followed by more potent opiates for intense refractory pain.
Accordingly, an urgent need exists for effective, non-addictive pain therapies.
19 unchanged sentences
We are currently evaluating the activity of various compounds from our proprietary series of selective Kv7.2/7.3 activators in multiple preclinical models of neuropathic pain.
−Removed: The Company has also initiated a sponsored research agreement with Yale to evaluate the activity of BHV-7000 in an iPSC model of inherited erythromelalgia, a severe rare genetic neuropathy.
−Removed: We are currently exploring BHV-7000 as a potential treatment for migraine.
+Added: The Company has also initiated a sponsored research agreement with Yale to evaluate the activity of opakalim in an iPSC model of inherited erythromelalgia, a severe rare genetic neuropathy.
+Added: In the fourth quarter of 2025, we initiated an exploratory study of opakalim, compared to placebo, in approximately 5 participants with inherited erythromelalgia using a crossover design to evaluate changes in pain intensity (NCT07262268).
+Added: We are currently exploring opakalim as a potential treatment for migraine.
Kv7.2/7.3 openers have shown significant activity in cortical spreading depression models of migraine.
+Added: Idiopathic Generalized Epilepsy
+Added: We initiated a Phase 2/3 study of opakalim in idiopathic generalized epilepsy ("IGE") in the second quarter of 2024.
+Added: The pivotal study evaluating the efficacy of opakalim with IGE is planned as a randomized, double-blind, placebo-controlled 24-week time-to-event trial with a primary endpoint of time to second generalized seizure in adults and adolescents with IGE.
+Added: Following a review of enrollment and strategic priorities, we have decided to close the IGE study to allow for a reallocation of resources to higher-priority development activities.
+Added: The Kv7 development program will focus on accelerating the completion of the two adult focal epilepsy trials.
TRPM3 Ion Channel Antagonists
8 unchanged sentences
Initially, there was much excitement and investment in TRPV1 antagonists due to promising preclinical efficacy and some evidence of clinical pain reduction.
−Removed: However, trials of most TRPV1 antagonists were terminated after the class consistently caused clinically-significant
−Removed: hyperthermia in study participants.
+Added: However, trials of most TRPV1 antagonists were terminated after the class consistently caused clinically-significant hyperthermia in study participants.
Several companies then made efforts to progress antagonists of TRPA1, the receptor for mustard oil.
2 unchanged sentences
Like TRPV1 and TRPA1, preclinical data and human genetic validation support TRPM3’s role in neuropathic pain and migraine.
−Removed: Unlike TRPV1 antagonists, TRPM3 antagonists are unlikely to possess significant thermal liabilities, and, unlike TRPA1 antagonists, Biohaven’s TRPM3 antagonists have desirable physiochemical properties and good pharmacokinetic profiles.
+Added: Unlike TRPV1 antagonists, TRPM3 antagonists are unlikely to possess significant thermal liabilities, and, unlike TRPA1 antagonists, Biohaven’s TRPM3 antagonists have desirable
+Added: physiochemical properties and good pharmacokinetic profiles.
The figure below illustrates TRPM3 as a differentiated target for the treatment of pain in the TRP family.
11 unchanged sentences
The Phase 1 study was a randomized, double-blind, placebo-controlled, SAD/MAD study in healthy subjects to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of BHV-2100.
−Removed: In May 2024, we reported positive pharmacokinetic and safety data from the completed Phase 1 study with BHV-2100.
+Added: In May 2024, we reported positive pharmacokinetic and safety data from the completed
+Added: Phase 1 study with BHV-2100.
The results demonstrated rapid absorption with therapeutic concentrations achieved by 20 minutes.
6 unchanged sentences
There is a significant unmet need for new treatments as more than 90 percent of migraine sufferers are unable to work or function normally during an attack.
−Removed: In September 2024, we announced that we have initiated a Phase 2 study evaluating BH-2100 in the acute treatment of migraine.
−Removed: The study is a 45-day, randomized, double-blind, placebo-controlled trial in approximately 575 subjects, with primary endpoints of freedom from pain at two hours post-dose and freedom from most bothersome symptom at two hours post-dose.
−Removed: See figure below for trial design.
−Removed: Data from the proof-of-concept migraine study are expected in the first half of 2025.
+Added: In September 2024, we announced that we had initiated a proof-of-concept study evaluating BH-2100 in the acute treatment of migraine.
+Added: The study was a 45-day, randomized, double-blind, placebo-controlled trial in approximately 575 subjects, with primary endpoints of freedom from pain at two hours post-dose and freedom from most bothersome symptom at two hours post-dose.
+Added: In June 2025, we reported that no efficacy signal was detected in the study.
Our Development of BHV-2100 for the Treatment of Neuropathic Pain
BHV-2100 is also being developed as a potential non-opioid treatment for neuropathic pain.
−Removed: We are evaluating the ability of BHV-2100 to reduce pain behaviors across several preclinical models of neuropathic pain, including chemotherapy induced neuropathy, diabetic neuropathy, and nerve injury.We initiated a conduct a proof-of-concept study for neuropathic pain in the fourth quarter of 2024.
+Added: We are evaluating the ability of BHV-2100 to reduce pain behaviors across several preclinical models of neuropathic pain, including chemotherapy induced neuropathy, diabetic neuropathy, and nerve injury.
+Added: We initiated a conduct a proof-of-concept study for neuropathic pain in the fourth quarter of 2024.
The study is a Phase-1b, randomized, double-blind, placebo and active reference controlled, crossover trial to assess the anti-nociceptive and anti-hyperalgesic effects of single oral doses of BHV-2100 (25 mg, 75 mg, and 150 mg) vs.
placebo, in a cohort of approximately 24 healthy male volunteer participants, utilizing a laser-evoked potential experimental pain paradigm.
−Removed: Preliminary data from the laser-evoked hyperalgesia study demonstrated that BHV-2100 reduced laser heat-induced pain and brain evoked potentials in healthy volunteers.
−Removed: Preliminary data demonstrated that BHV-2100 reduced laser heat-induced pain and brain evoked potentials in healthy volunteers.
−Removed: Complete data from the laser-evoked potential study are expected in the first half of 2025.
+Added: In May 2025, we presented data showing that BHV-2100 reduced laser heat-induced pain in healthy volunteers.
+Added: Statistically significant pain reduction was observed in inflamed skin on the visual analog scale with low dose (p=0.036) and high dose (p=0.015).
+Added: BHV-2100 numerically increased the weighted needle threshold (higher threshold suggests less mechanical pain).
+Added: Moreover, BHV-2100 had no effect on body temperature or heat pain threshold.
+Added: We believe BHV-2100's profile has potential across multiple pain disorders.
Additional research on TRPM3-mediated disorders
−Removed: Under the KU Leuven Agreement, Biohaven is supporting further basic and translational research at KU Leuven on the role of TRPM3 in pain and other disorders.
+Added: Under the KU Leuven Agreement, Biohaven evaluated the role of TRPM3 in pain and other disorders.
In addition to BHV-2100, we are optimizing other lead compounds for TRPM3-mediated disorders of the peripheral and central nervous systems.
1 unchanged sentence
Agreement with Hangzhou Highlightll Pharmaceutical Co.
−Removed: In March 2023, we entered into an exclusive, worldwide (excluding People’s Republic of China and its territories and possessions) license agreement with Hangzhou Highlightll Pharmaceutical Co.
+Added: In March 2023, we entered into an exclusive, worldwide (excluding China and its territories and possessions) license agreement with Hangzhou Highlightll Pharmaceutical Co.
("Highlightll") (the "Highlightll Agreement"), pursuant to which we obtained the right to research, develop, manufacture and commercialize Highlightll’s brain penetrant dual TYK2/JAK1 inhibitor program.
8 unchanged sentences
Biohaven completed interactions with FDA enabling registrational programs for Parkinson's disease and the prevention of ARIA.
+Added: Our Clinical Program for BHV-8000
Our Phase 1 Study with BHV-8000
2 unchanged sentences
Phase 1 study data also confirmed cerebrospinal fluid ("CSF") exposures of BHV-8000.
−Removed: We expect to initiate a pivotal trial in Parkinson's in the first half of 2025 and advance Alzheimer's, MS and ARIA programs in 2025.
−Removed: We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.
+Added: BHV-8000 for Parkinson's Disease ("PD")
+Added: We initiated a pivotal trial in PD in the first half of 2025.
+Added: The PD study is a Phase 2/3 randomized, double-blind, placebo-controlled study designed to evaluate the efficacy, safety, and tolerability of BHV-8000 in participants diagnosed with early PD, with a time-to-event primary endpoint (≥ 2-point worsening on Movement Disorder Society – Unified Parkinson’s Disease Rating Scale ("MDS-UPDRS") -Part II).
+Added: In light of current portfolio and resource considerations, we are implementing a more focused execution of the ongoing study.
MoDE and TRAP Degraders
−Removed: Molecular Degraders of Extracellular Proteins
−Removed: The Molecular Degraders of Extracellular Proteins (“MoDEs”) platform harnesses selectivity, rapidity, and patient-friendly self-administration to remove disease-causing proteins from the body to potentially treat a range of diseases.
−Removed: Each MoDE degrader is a novel bispecific molecule that targets a specific form of circulating protein and directs it to the liver for degradation by the endosomal/lysosomal pathway.
−Removed: Four INDs have been accepted by the FDA for MoDE degrader molecules in 2024 and multiple other investigational agents are in development.
−Removed: Three assets have been dosed in Phase 1 trials, with the fourth anticipated to be dosed in the first half of 2025.
−Removed: The first-of-its-kind molecule, BHV-1300 has demonstrated deep lowering of IgG1, 2 and 4 in Phase 1 clinical trials and is being developed as a proprietary subcutaneous formulation in conjunction with an autoinjector for easy-to-use self-administration.
−Removed: BHV-1400 and BHV-1600, currently in Phase 1 clinical trials, Biohaven's first Targeted Removal of Aberrant Protein ("TRAP"™) molecules, represent next generation MoDEs targeting very specific pathogenic antibodies, while sparing healthy immunoglobulin to preserve immune function.
−Removed: Data from the first, and lowest, dose cohort of BHV-1400 demonstrated clear differentiation from competitors in the IgA nephropathy space, with rapid lowering of Gd-IgA1 within hours and preservation of host immunoglobulins including IgG, IgA, IgE, and IgM.
−Removed: Multiple new and novel investigational MoDE and
−Removed: TRAP molecules are in development for potential treatment of diseases, such as membranous nephropathy, Graves' disease, diabetes, and IgG4-mediated diseases.
−Removed: The first-of-its-kind molecule BHV-1300 has demonstrated deep lowering of IgG1, 2 and 4 in Phase 1 clinical trials and is being developed as a proprietary subcutaneous formulation in conjunction with an autoinjector for easy-to-use self-administration.
−Removed: BHV-1300 was rationally designed to spare IgG3, potentially allowing for preservation host defense.
−Removed: BHV-1300 is being developed for the treatment of common immune mediated-diseases, such as Graves' Disease and Rheumatoid Arthritis ("RA").
−Removed: Graves' Disease is a disease in which IgG1 autoantibodies stimulate the thyroid to produce excess thyroid hormone.
−Removed: Targeted removal of disease-causing IgG has the potential to eliminate the pathogenic thyroid-stimulating antibody and modify the disease.
−Removed: Graves' Disease is estimated to impact 1% of the population globally.
−Removed: RA is a chronic autoimmune disease estimated to affect 1 to 2% of the global population.
−Removed: RA primarily affects the joints, causing pain, swelling, stiffness, and loss of function.
−Removed: We evaluated the effect of single and multiple doses of BHV-1300 in cynomolgus monkeys.
−Removed: In September 2023, we reported data from confirmatory studies that showed a 75-80% reduction of IgG levels two days after a single dose and over 90% of IgG lowering after three doses.
−Removed: Maximal lowering across FcRn inhibitors is 60-80% within approximately 7 to 21 days after initiation of single or multiple doses, respectively, in cynomolgus.
−Removed: In contrast, a single dose of BHV-1300 lowers IgG by approximately 75 to 80% after approximately 2 days, and after three rapid doses to greater than 90% lowering.
−Removed: The length of significant exposure to BHV-1300 is approximately one day within the dosage interval compared to continuous exposure required of the FcRn inhibitors.
−Removed: Mechanism-related liabilities of FcRn inhibitors seen in animals and humans, including
−Removed: hypoalbuminemia and hypercholeresterolemia, are not expected and do not occur with BHV-1300 in cynomolgus.
−Removed: See figures below comparing the speed and depth of lowering to FcRn inhibitors.
−Removed: In January 2024, we reported preclinical pharmacodynamic single dose data with BHV-1300 which demonstrated the Biohaven IgG degrader technology allows for co-administration with Fc-containing biologics.
−Removed: The PK of Humira® was unaltered after being dosed 12 hours after BHV-1300 administration (see figure below).
−Removed: * Adapted from BLA 761154, IND 116471, Study no.
−Removed: Our Phase 1 Study with BHV-1300
−Removed: The Phase 1 SAD study examining BHV-1300 in healthy subjects was initiated in the first quarter of 2024 and remains ongoing.
−Removed: In May 2024, we reported preliminary results from our Phase 1 study of BHV-1300.
−Removed: These results in healthy subjects demonstrated that BHV-1300 rapidly and selectively lowers IgG in a dose-dependent manner in the first 4 cohorts completed to date (see figure below).
−Removed: Preliminary IgG lowering data is consistent with modeling, with dose- and time-dependent IgG lowering observed even in initial low-dose cohorts.
−Removed: Some subjects experienced IgG reductions as low as 50 to 70% of baseline.
−Removed: BHV-1300 demonstrated reduction of IgG without significantly impacting LFTs, albumin, LDL cholesterol or other serum labs.
−Removed: BHV-1300 has been safe and well tolerated to date, with no serious or severe adverse events.
−Removed: Most AEs were mild, deemed unrelated to study drug and resolved spontaneously.
−Removed: As expected from the selectivity of the molecule for IgG, when compared to placebo, there were no meaningful reductions in average IgA, IgM or IgE levels during the week after dosing.
−Removed: No adverse trends have been observed in vital signs or ECGs.
−Removed: Modeling suggests additional
−Removed: cohorts in the Phase 1 study will achieve greater than 70% lowering of IgG utilizing doses compatible with subcutaneous administration.
−Removed: The Phase 1 study has also compared intravenous and subcutaneous administration of BHV-1300.
−Removed: Subcutaneous administration of BHV-1300 demonstrated an average of approximately 44% higher than expected exposure compared to the dose-equivalent intravenous formulation without injection site reactions.
−Removed: This new human data confirms the feasibility of our plan for convenient dosing of BHV-1300 with a patient self-administered subcutaneous autoinjector.
−Removed: In the fourth quarter of 2024 we provided an update to our Phase 1 study of BHV-1300, reporting that subcutaneously administered BHV-1300 achieved deep lowering of targeted IgG (IgG1, IgG2, IgG4, over IgG3), with reductions over 60% in the lowest subcutaneous dose tested in the ongoing MAD study.
−Removed: Subcutaneous BHV-1300 achieved progressive reduction in IgG within hours of each weekly dose administration in the MAD, and pharmacodynamic effects were sustained relative to baseline over the four-week study period.
−Removed: BHV-1300 has been safe and well-tolerated across the Phase 1 study.
−Removed: There were no clinically significant effects on albumin or liver function, and no increases in cholesterol were noted.
−Removed: Further enhancing the competitive safety profile and as intentionally designed, plasma IgG3 levels were preserved through the end of study week 4 to allow for healthy immune effector functioning.
−Removed: All AEs were mild, any drug-related AE resolved, and there were no discontinuations due to study drug related AEs.
−Removed: The optimized subcutaneous formulation in the MAD also showed substantially less inter-patient variability compared to previously reported intravenous BHV-1300.
−Removed: In addition, we announced that we entered into an agreement with Ypsomed to develop and manufacture BHV-1300 in an easy-to-use, autoinjector for self-administration intended for commercialization.
−Removed: In March 2025, we provided further updates to our ongoing Phase 1 study of BHV-1300.
−Removed: In the four-week Phase 1 study, subcutaneously administered BHV-1300 at a dose of 1000 mg weekly achieved rapid, deep and sustained reductions
−Removed: in total IgG of up to 84%, with a median reduction of 80% (see Figure 1 below).
−Removed: Reductions occurred within hours of each dose, were progressive, and were sustained compared to baseline over the four-week period.
−Removed: BHV-1300 was safe and well-tolerated in subcutaneous doses up to 2000 mg with no clinically significant increases in ALT, AST, or bilirubin, no clinically significant reductions in albumin, and no clinically significant increases in cholesterol over the four-week dosing period compared to placebo.
−Removed: There were no clinically significant reductions in IgG3, IgA, IgE, or IgM compared to baseline.
−Removed: Most AEs were mild and self-resolving, there were no discontinuations due to AEs related to study drug, and there were no serious or severe AEs.
−Removed: The Phase 1 study is ongoing with plans to continue to escalate multiple doses to explore deeper reductions to characterize the potential range of IgG lowering possible with MoDE technology, allowing for customization of speed and depth of IgG lowering and decreased frequency of administration across different disease indications.
−Removed: We plan to initiate a Phase 2 study of BHV-1300 in Graves’ disease in mid-2025.
−Removed: Additional follow-on studies in other autoimmune diseases will be pursued.
+Added: As discussed above, Biohaven MoDE and Targeted Removal of Aberrant Protein TRAP degraders harness selectivity, rapidity and patient-friendly self-administration to remove disease-causing proteins from the body to potentially treat a range of diseases.
+Added: Each MoDE or TRAP degrader is a novel bispecific molecule that targets a specific form of circulating protein and directs it to the liver for degradation by the endosomal/lysosomal pathway.
BHV-1310 is a next generation bispecific IgG degrader with specificity for IgG1, IgG2 and IgG4, which is initially being developed for the treatment of rare disorders including conditions like generalized myasthenia gravis ("gMG") and potentially other acute or chronic conditions, or chronic conditions with acute exacerbations or flares.
−Removed: MG is a neuromuscular disorder that is estimated to affect approximately 36,000 to 60,000 people in the United States.
+Added: MG is a neuromuscular disorder that is estimated to affect approximately 36 thousand to 60 thousand people in the United States.
Patients with gMG develop antibodies that attack critical signaling receptor proteins at the junction between nerve and muscle cells, inhibiting communication between nerves and muscle and resulting in weakness of the skeletal muscles.
−Removed: BHV-1310 is completing preclinical testing prior to initiation of a Phase 1 study in the first half 2025.
−Removed: BHV-1400 is the first TRAP degrader introduced by Biohaven, a selective MoDE which is being developed to target Gd-IgA1, an aberrant immunoglobulin that drives IgA Nephropathy (see figure below).
−Removed: Specific removal of pathogenic Gd-IgA1 and associated circulating immune complexes with preservation of normal IgA potentially permits disease remission without incurring an infection risk.
−Removed: We shared preliminary data demonstrating the chimeric antibody-ASGPR ligand conjugate specifically mediated endocytosis of Gd-IgA1, as opposed to normal IgA1 and IgA2, in an endocytosis assay with ASGPR-expressing cell lines, and that TRAP degraders successfully internalize and degrade these immune-complexes.
−Removed: In mice, after deposition of Gd-IgA1 in the glomerular mesangial matrix followed by administration of BHV-1400, Gd-IgA1 is progressively removed and no longer detected by six hours.
−Removed: Our Phase 1 Study with BHV-1400
−Removed: We initiated Phase 1 studies of BHV-1400 in the fourth quarter of 2024.
−Removed: The first-in-human ("FIH") trial is a randomized, open-label, placebo-controlled, single and multiple ascending dose study to evaluate the safety, tolerability, PK, and PD of BHV-1400 in healthy volunteers.
−Removed: In the first quarter of 2025, Biohaven announced deep and selective lowering of Gd-IgA1 with the first dose cohort tested in the SAD.
−Removed: Subjects achieved median Gd-IgA1 lowering of 60% within 4 hours of dose administration without clinically significant lowering of healthy immunoglobulins IgA, IgE, IgM, or IgG (see figure below).
−Removed: As a next generation TRAP degrader, BHV-1400 is a potential therapeutic for the treatment of IgA nephropathy, and highlights the precision of MoDE platform molecules in their ability to selectively remove a pathogenic disease-causing protein without suppressing the healthy immune system.
+Added: BHV-1310 is completing preclinical testing prior to initiation of a Phase 1 study.
BHV-1600 is a selective TRAP designed to remove agonistic antibodies directed against myocardial beta-1 adrenergic receptor ("β-1 AR").
−Removed: β-1 AR autoantibodies have been identified in serum individuals with dilated cardiomyopathies, such as peripartum cardiomyopathy, and have been shown to cause chronic stimulation and dilation of the myocardium.
+Added: β-1 AR autoantibodies have been identified in serum individuals with dilated
+Added: cardiomyopathies, such as peripartum cardiomyopathy, and have been shown to cause chronic stimulation and dilation of the myocardium.
Peripartum cardiomyopathy is a life-threatening condition affecting mothers within the months following delivery of a child.
6 unchanged sentences
We are currently developing additional MoDE degraders advancing towards candidate nomination.
−Removed: These include an IgG4 specific degrader, a phospholipase A2 receptor ("PLA2R") autoantibody degrader for membranous nephropathy, a pro-insulin autoantibody degrader for type 1 diabetes, and a Thyroid Stimulating Hormone ("TSH") receptor autoantibody degrader as a selective follow-on asset for Graves' Disease.
+Added: These include an IgG4 specific degrader, a phospholipase A2 receptor ("PLA2R") autoantibody degrader for membranous nephropathy, a pro-insulin autoantibody degrader for type 1 diabetes, an IgM degrader for IgM neuropathy and Waldenstrom's macroglobulinemia, and a Thyroid Stimulating Hormone ("TSH") receptor autoantibody degrader as a selective follow-on asset for Graves' Disease.
Oncology Platform
−Removed: Antibody Recruiting Molecules
−Removed: Antibody Recruiting Molecules (“ARMs”) are bispecific molecules that recruit endogenous antibodies to target cancer, virally infected cells, and disease-causing microorganisms for immune-mediated clearance.
−Removed: These molecules are engineered as modular components that are readily interchangeable, giving the platform tremendous flexibility for a variety of indications and therapy areas.
−Removed: By recruiting antibodies to coat the disease cell target, ARMs mark it for removal by the body’s innate antibody-mediated immune mechanisms (antibody dependent cellular cytotoxicity and antibody dependent cellular phagocytosis).
−Removed: Platform advantages
−Removed: Similar to biologics, ARMs directly engage patients’ immune system to destroy disease cells by connecting target disease cells with components of the immune system.
−Removed: However, unlike biologics, ARMs are smaller in size than an antibody potentially allowing for enhanced tumor penetration and biodistribution, and may offer manufacturing advantages including enhanced shelf stability.
−Removed: ARM™ NK Combination Therapy
−Removed: The BHV-1100 program is a CD-38 targeting NK ARM engager intended for use as a combination therapy in the treatment of multiple myeloma.
−Removed: Due to strategic re-prioritization within both our oncology-specific and non-oncology programs, and multiple changes in the treatment landscape for multiple myeloma since the inception of the open-label single center Phase 1a/b trial of BHV-1100 and such changes negatively impacting trial enrollment, the multiple myeloma trial is planned to end shortly.
−Removed: Alternative trial designs in multiple myeloma and additional indications for our ARM(TM) platform are being considered for possible development.
Antibody Drug Conjugates
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("Regeneron") under which we will sponsor and fund the planned combination Phase 1/2 clinical trial, and Regeneron will provide Libtayo.
−Removed: The primary objective of Phase 1 is to characterize the safety profile of BHV-1510 as monotherapy and in combinations with cemiplimab, and to identify a recommended dose for expansion ("RDE") or maximum tolerated dose.
+Added: The primary objective of Phase 1 is to characterize the safety profile of BHV-1510 as monotherapy and in combinations with Libtayo, and to identify a recommended dose for expansion ("RDE") or maximum tolerated dose.
Phase 1 dose escalation will be implemented based on a Bayesian optimal interval design, with the lowest dose initiated as a single patient cohort.
7 unchanged sentences
The main toxicity observed thus far in the study has been stomatitis, an expected on-target Trop2 class toxicity.
−Removed: The Phase 1/2 study of BHV-1510 is progressing, with robust enrollment in dose escalation and optimization, both as monotherapy and in combination with the anti-PD1 monoclonal antibody Libtayo® (cemiplimab-rwlc).
−Removed: Based on these early results, we have entered into an expanded collaboration agreement with GeneQuantum Healthcare Co.
+Added: In May 2025, we reported further preliminary data from the study, where BHV-1510 demonstrated encouraging early clinical activity in combination with Regeneron's anti-PD-1 antibody Libtayo.
+Added: The combination of BHV-1510 and Libtayo® in the ongoing Phase 1 study showed encouraging anti-tumor activity, with tumor shrinkage in the first 6 out of 6 patients treated, including confirmed partial responses and in patients with brain metastasis.
+Added: The majority of these 6 patients treated with the combination had received prior anti–PD-1/PD-L1 therapies.
+Added: The combination with Libtayo was well tolerated with no dose limiting toxicity in these initial cohorts.
+Added: Based on the early results for BHV-1510, we entered into an expanded collaboration agreement with GeneQuantum Healthcare Co.
("GeneQuantum"), which provides broad target exclusivity for up to 18 ADC targets incorporating the TopoIx payload.
+Added: In December 2025, we presented additional clinical safety and efficacy data for BHV-1510 at the 2025 European Society for Medical Oncology ("ESMO") Immuno-Oncology Congress.
+Added: At the BHV-1510 dose of 2.5 mg/kg Q3W in combination with Libtayo, confirmed objective response rate ("ORR") was 72.7%.
+Added: Confirmed responses were observed in 3/5 (60%) in non-small cell lung cancer ("NSCLC"), 4/4 (100%) in endometrial cancer, which included a complete response, and 1/2 (50%) in urothelial cancer.
+Added: As of the clinical cutoff date on October 10, 2025, in all 23 efficacy evaluable participants treated with BHV-1510 in combination with Libtayo across dose levels, the confirmed ORR was 52.2%, with confirmed objective responses in 6 out of 14 (42.9%) in NSCLC, 4 out of 6 (66.7%) in endometrial cancer, and 1 out of 2 (50%) in urothelial cancer.
+Added: A confirmed response was reported in the participant with triple negative breast cancer.
+Added: The majority of participants had tumor reduction on their first scan, with a median time to response of 11.1 weeks.
+Added: Participants remain on study at 6 months and beyond, 18 participants continue on the study treatment at time of the clinical cutoff date.
+Added: As of the clinical cutoff date on October 10, 2025, early results showed that BHV-1510 in combination with Libtayo was generally well tolerated.
+Added: There were low rates of adverse events attributed to unconjugated payload such as hematological toxicities and diarrhea, and there were no cases of interstitial lung disease, showing a differentiated safety profile of BHV-1510 from other Trop2 ADCs.
+Added: The most frequent toxicity observed was oral mucositis/stomatitis, which is a manageable, well-known class effect.
+Added: An expansion cohort in with the combination has been initiated in endometrial cancer.
The next ADC incorporating the TopoIx payload that we plan to move into clinical development is BHV-1530.
3 unchanged sentences
Biohaven retains global rights for BHV-1530 under an exclusive license with GeneQuantum (the "FGFR3 Agreement").
−Removed: IND for BHV-1530 was opened in the second half of 2024, and a FIH study for solid tumors is planned to initiate in the first half of 2025.
+Added: IND for BHV-1530 was opened in the second half of 2024, and a FIH study for solid tumors was initiated in the second quarter of 2025.
Our Phase 1 Study with BHV-1530
9 unchanged sentences
In preclinical CD30 expressing murine tumor models, BHV-1500 has shown improved antitumor activity versus Adcetris, and in preliminary cynomolgus monkey studies, BHV-1500 has shown substantially improved safety, plasma stability and pharmacokinetics.
−Removed: A regulatory interaction with the FDA to discuss the development plans for BHV-1500 is planned for the first half of 2025.
+Added: An initial regulatory interaction with the FDA to discuss the development plans for BHV-1500 took place in first half of 2025.
Merus Agreement
1 unchanged sentence
("Merus") to co-develop three novel dual-targeting ADCs, leveraging Merus’ Biclonics® technology platform, and Biohaven’s next-generation ADC conjugation and payload platform technologies (the "Merus Agreement").
−Removed: Pursuant to the Merus Agreement, Merus will receive an upfront payment and license fee at ADC candidate nomination of the first program, with Merus to assume the preclinical bispecific antibody generation cost, and Biohaven to assume the preclinical ADC generation cost.
−Removed: Thereafter, upon mutual agreement to advance each program, the parties plan to share further development and commercialization costs.
+Added: In January 2026, we received notice from Merus that the development programs for the three ADCs were being terminated subsequent to the acquisition of Merus by Genmab A/S.
Clinical-Stage Milestones
9 unchanged sentences
Manufacturing
−Removed: We have an experienced chemistry and manufacturing leadership team that manages our relationships with third party manufacturers.
−Removed: We currently rely, and expect to continue to rely, on third parties for the development and manufacturing of our product candidates for preclinical and clinical testing, as well as for commercial manufacturing of our products if our product candidates receive marketing approval.
−Removed: We expect to continue to develop product candidates that can be produced cost-effectively at contract manufacturing facilities.
+Added: We have an experienced chemistry, manufacturing and controls leadership team that oversees and manages our relationships with development and manufacturing manufacturers.
+Added: We currently rely, and expect to continue to rely, on
+Added: third parties for the development and manufacturing of our product candidates for preclinical and clinical testing, as well as for commercial manufacturing of our products if our product candidates receive marketing approval.
+Added: We expect to continue to develop product candidates that can be scaled and produced cost-effectively at contract manufacturing facilities.
Commercialization
31 unchanged sentences
We have many U.S.
−Removed: and foreign patents and patent applications in our portfolio related to the composition of matter, methods of use, methods of manufacture or formulations of our product candidates which have been filed in major markets throughout the world, including the U.S., Europe, the United Kingdom, Japan, Korea, China, Hong Kong and Australia.
+Added: and foreign patents and patent applications in our portfolio related to the composition of matter, methods of use, methods of manufacture or formulations of our product candidates which have been filed in major
+Added: markets throughout the world, including the U.S., Europe, the United Kingdom, Japan, Korea, China, Hong Kong and Australia.
+Added: Inflammation and Immunology
+Added: In January 2021, we entered into a worldwide, exclusive license agreement with Yale University for the development and commercialization of a novel MoDE platform.
+Added: The platform pertains to the clearance of disease-causing proteins and other biomolecules by targeting them for lysosomal degradation using multi-functional molecules.
+Added: The platform is differentiated from existing approaches in that it does not rely on ubiquitin ligases, and it allows for a broad range of targets to be degraded.
+Added: The patent portfolio is directed to the composition of matter of bifunctional degraders and their use in degrading circulating proteins and treating diseases.
+Added: 11,767,301, issued September 26, 2023, and U.S.
+Added: 12,083,181, issued September 10, 2024, U.S.
+Added: 12,364,766, issued July 9, 2025 and U.S.
+Added: 12,485,178, issued December 2, 2025, relate to bifunctional molecules to degrade circulating proteins, including BHV-1300.
+Added: counterparts to the '301 patent, '181 patent, '766 patent, and '178 patent are pending in the European Patent Office, Canada, China and Hong Kong, and, if granted, will expire in April 2039, not including possible patent term extensions in countries where such extensions are available.
+Added: 17/768166, filed April 11, 2022, relates to bifunctional compounds as degraders of autoantibodies.
+Added: counterparts to the '166 application have been filed in the United Arab Emirates, Australia, Brazil, Canada, China, European Patent Office, Israel, Japan, Republic of Korea, Mexico, Philippines, Saudi Arabia, Singapore, and South Africa and, if granted, will expire in October 2040, not including possible patent term extensions in countries where such extensions are available.
+Added: 17/768145, filed April 11, 2022, relates to engineered antibodies as molecular degraders through cellular receptors.
+Added: counterparts to the '145 application have been filed in the United Arab Emirates, Australia, Brazil, Canada, China, countries of the Eurasian Patent Organization, European Patent Office, Israel, India, Japan, Republic of Korea, Mexico, New Zealand, Philippines, Saudi Arabia, South Africa and Singapore and, if granted, will expire in October 2040, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/US2022/017319, which relates to targeted brain-penetrant bifunctional degraders, was filed February 22, 2022, and national applications are pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will expire in February 2042, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/US2022/019658, which relates to bifunctional degraders of galactose deficient immunoglobulins, was filed March 10, 2022, and is pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will expire in March 2042, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/US2022/075527 and PCT/US2022/075535, filed August 26, 2022, which relate to bifunctional degraders of pathogenic anti-β1ECII (the second extracellular loop of the β1 adrenergic receptor) autoantibodies, are pending in the United States and major jurisdictions worldwide.
+Added: patents issued from the ‘535 application as U.S.
+Added: 12,128,105 on October 29, 2024 and U.S.
+Added: 12,234,256 on February 25, 2025.
+Added: PCT/US2024/058316, which also relates to bifunctional degraders of pathogenic anti-β1ECII autoantibodies, including BHV-1600, was filed December 4, 2024, and is pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will expire in December 2044, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/US2024/026709, which relates to degraders of immunoglobulin G, including BHV-1310, was filed April 28, 2024, and is pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will expire in April 2044, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/US2024/026733, which relates to bifunctional degraders of galactose deficient immunoglobulins, including BHV-1400, was filed April 29, 2024, and is pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will expire in April 2044, not including possible patent term extensions in countries where such extensions are available.
+Added: In March 2023, we entered into an exclusive, worldwide (excluding People’s Republic of China and its territories and possessions) license agreement with Highlightll pursuant to which we obtained the right to research, develop, manufacture and commercialize Highlightll’s brain penetrant dual TYK2/JAK1 inhibitor program.
+Added: Patent RE49834, having an issue date of February 13, 2024, is directed to BHV-8000 and will expire in September 2037, not including possible patent term extensions.
+Added: counterparts to the ‘834 patent have been granted in Australia, Brazil, Canada, European Patent Office, Israel, India, Japan, Mexico, New Zealand, and Republic of Korea, and patent applications to the ‘834 patent is pending in Eurasia.
+Added: patents and patent applications, if granted, will expire in September 2037, not including possible patent term extensions in countries where such extensions are available.
+Added: In addition, PCT/CN2020/088122, related to a stable crystalline form of BHV-8000, was filed April 30, 2020, and is pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will expire in April 2040, not including possible patent term extensions in countries where such extensions are available.
+Added: In addition, PCT/CN2022/113807, which relates to methods of treating CNS disorders with dual TYK2/JAK1 inhibitors, was filed August 22, 2022, and is pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will
+Added: expire in August 2042, not including possible patent term extensions in countries where such extensions are available.
+Added: In addition, PCT/IB2025/054156, filed April 21, 2025, which relates to methods of treating alpha-synucleinopathies and neuroprotection with dual TYK2/JAK1 inhibitors, is pending at the International Bureau designating all PCT countries.
+Added: Myostatin Activin
+Added: Taldefgrobep Alfa
+Added: In December 2021, we entered into a worldwide license agreement with Bristol Myers Squibb for the global development and commercialization rights to taldefgrobep alfa (BHV-2000), a novel, Phase 3-ready anti-myostatin adnectin.
+Added: Myostatin is a natural protein that limits skeletal muscle growth, an important process in healthy muscular development.
+Added: Patent 8,853,154 issued October 7, 2014, U.S.
+Added: Patent 8,933,199, issued January 13, 2015, U.S.
+Added: Patent 8,993,265, issued March 31, 2015, U.S.
+Added: Patent 9,493,546, issued November 15, 2016, U.S.
+Added: Patent 9,662,373, issued May 30, 2017, U.S.
+Added: Patent 10,245,302, issued April 2, 2019, U.S.
+Added: Patent 10,406,212, issued September 10, 2019, and U.S.
+Added: Patent 11,813,315, issued November 14, 2023, are directed to fibronectin based scaffold domain proteins that bind to myostatin.
+Added: patents expire in September 2033, not including possible patent term extensions.
+Added: counterparts to the U.S.
+Added: patents have been granted in Argentina, Austria, Australia, Belgium, Bulgaria, Brazil, Canada, Switzerland, Chile, China, Colombia, Czechia, Germany, Denmark, Algeria, Egypt, Spain, Finland, France, United Kingdom, Greece, Hong Kong, Croatia, Hungary, Indonesia, Ireland, Israel, India, Italy, Japan, Republic of Korea, Lithuania, Morocco, Macao, Mexico, Malaysia, Netherlands, Norway, New Zealand, Peru, Philippines, Poland, Portugal, Romania, Serbia, Russia, Sweden, Singapore, Slovenia, Slovakia, Thailand, Tunisia, Turkey, Taiwan, Uruguay, Venezuela, Vietnam and South Africa.
+Added: patents will expire in September 2033, not including possible patent term extensions in countries where such extensions are available.
+Added: 16/607688, filed May 3, 2018, relates to stable formulations fibronectin based scaffold domain proteins that bind to myostatin.
+Added: counterparts to the '688 application have been granted in Australia, Israel, Japan, Korea, Mexico, and Taiwan, and are pending in Canada, China, European Patent Office, Hong Kong, and Singapore.
+Added: patents and patent applications, if granted, will expire in May 2038, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/US2024/015292, which relates to methods of treating overweight, obesity, and related health conditions with anti-myostatin adnectins, was filed February 10, 2024, and is pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will expire in February 2044, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/IB2025/053898, filed April 14, 2025, which relates to methods of treating overweight, obesity, and related health conditions with anti-myostatin adnectins in combination with a GLP-1 agonist, is pending at the International Bureau designating all PCT countries.
+Added: Kv7 Activator
In April 2022, we acquired Channel Biosciences, LLC.
1 unchanged sentence
The patents and patent applications are directed to the composition of matter of compounds that are activators of Kv7.2/Kv7.3 and their use in treating diseases such as epilepsy.
−Removed: Patent 10,851,067 (the “‘067 Patent”), issued December 1, 2020, specifically claims BHV-7000 and will expire in March 2039, not including possible patent term extensions.
−Removed: counterparts to the ‘067 patent have been granted in Australia, Israel, Korea, Mexico and New Zealand and patent applications to the ‘067 patent are pending in Brazil, Canada, China, European Union, United Kingdom, Hong Kong, Israel, India, Japan, Republic of Korea, New Zealand, Singapore and South Africa.
+Added: Patent 10,851,067, issued December 1, 2020, claims opakalim and will expire in March 2039, not including possible patent term extensions.
+Added: counterparts to the ‘067 patent have been granted in Australia, Israel, Japan, Republic of Korea, Mexico, New Zealand, Republic of Korea, and South Africa, and patent applications to the ‘067 patent are pending in Brazil, Canada, China, European Patent Office, Hong Kong, Israel, India, New Zealand, and Singapore.
patents, and patent applications, if granted, will expire in March 2039, not including possible patent term extensions in countries where such extensions are available.
In addition, U.S.
−Removed: Patent 9,481,653 (the “‘653 patent”), issued November 1, 2016, claims a class of compounds including BHV-7000 and will expire in September 2035, not including possible patent term extensions.
+Added: Patent 9,481,653, issued November 1, 2016, claims a class of compounds including opakalim and will expire in September 2035, not including possible patent term extensions.
counterparts to the ‘653 patent are granted in Belgium, Switzerland, Germany, Denmark, Spain, Finland, France, United Kingdom, Ireland, Iceland, Italy, Netherlands, Norway and Sweden.
4 unchanged sentences
Other patent application directed to the combination treatment with a Kv7 activator and N-methyl-D-aspartate ("NMDA") receptor antagonist (PCT/US23/73125), a Kv7 activator and glutamate modulator (PCT/US23/73504), and a Kv7 activator and TDP-43 binder (PCT/US23/73491) were filed in August and September 2023.
−Removed: These applications are pending in the United States Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
+Added: These applications are pending in the United States and major jurisdictions worldwide.
The patent applications, if granted, will expire in August/September 2043, not including possible patent term extensions in countries where such extensions are available.
+Added: TRPM3 Antagonist
+Added: In January 2022, we entered into an exclusive global license and research agreement to develop and commercialize TRPM3 antagonists to address the growing proportion of people worldwide living with chronic pain disorders.
+Added: The TRPM3 antagonist platform was discovered at the Centre for Drug Design and Discovery (“CD3”) and the Laboratory of Ion Channel Research (“LICR”) at Katholieke Universiteit Leuven (KU Leuven).
+Added: PCT/EP2021/082853, which relates to aryl derivatives for treating TRPM3 mediated disorders, was filed November 24, 2021 and national applications are pending in the United Arab Emirates, Australia, Brazil, Canada, China, countries of the Eurasian Patent Organization, European Patent Office, Israel, India, Japan, Republic of Korea, Mexico, New Zealand, Philippines, Saudi Arabia, South Africa, Singapore, Taiwan and the U.S.
+Added: The patent applications, if granted, will expire in November 2041, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/EP2021/082865, which relates to heterocycle derivatives for treating TRPM3 mediated disorders, including BHV-2100, was filed November 24, 2021.
+Added: In that family, U.S.
+Added: Patent 12,209,081, issued January 28, 2025, and U.S.
+Added: Patent 12,404,266, issued September 2, 2025, claims BHV-2100 and will expire in November 2041, not including possible patent term extensions.
+Added: Related patents have been granted in Eurasian Patent Organization and Saudi Arabia, and national applications are pending in the United Arab Emirates, Australia, Brazil, Canada, China, European Patent Office, Israel, Japan, Republic of Korea, Mexico, New Zealand, Philippines, Singapore, Taiwan, South Africa and the U.S.
+Added: The Ex-US patent applications, if granted, will expire in November 2041, not including possible patent term extensions in countries where such extensions are available.
+Added: Patent 9,194,863, issued November 24, 2015, which relates to screening methods for analgesic agents, has also been granted in Belgium, Switzerland, Germany, Denmark, Spain, Finland, France, United Kingdom, Ireland, Italy, Netherlands and Sweden.
+Added: The patents will expire in May 2032, not including possible patent term extensions in countries where such extensions are available.
+Added: In addition, seven PCT applications directed to various TRPM3 antagonist chemotypes were filed in May 2023 (PCT/EP2023/063992, PCT/EP2023/063994, PCT/EP2023/063996, PCT/EP2023/063997, PCT/US2023/067443, PCT/US2023/067446, PCT/US2023/067448), and corresponding national applications are pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if granted, will expire in May 2043, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/US2024/041162, filed August 7, 2024, which relates to oral fast-dispersing dosage forms of TRPM3 antagonists and methods of treating pain using the same, is pending at the United States PCT Receiving Office designating all PCT countries.
+Added: In addition, two PCT applications disclosing some brain-penetrant TRPM3 antagonists were filed in November 2024 (PCT/US2024/056806 and PCT/US2024/056810) and are currently pending in the United States PCT Receiving Office designating all PCT countries.
+Added: In January 2024, the Company acquired Pyramid Biosciences, Inc.
+Added: (“Pyramid”), pursuant to an Agreement and Plan of Merger, dated January 7, 2024 ("the Pyramid Agreement").
+Added: As a result of the merger, the Company acquired rights under certain patents exclusively licensed to Pyramid from GeneQuantum Healthcare (Suzhou) Co.
+Added: The licensed patents include the following, among others:
+Added: PCT/CN2023/107444, filed July 14, 2023, which relates to anti-TROP2 antibodies and conjugates, including BHV-1510.
+Added: 12,539,336, issued February 3, 2026 from the ‘444 application, claims BHV-1510.
+Added: National applications are also pending in the United Arab Emirates, Argentina, Australia, Brazil, Canada, Eurasian Patent Organization, European Patent Office, India, Indonesia, Israel, India, Japan, Republic of Korea, Malaysia, Mexico, New Zealand, Philippines, Saudi Arabia, Singapore, and South Africa.
+Added: The patent applications, if granted, will expire in July 2043, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/CN2024/087405, which relates to combinations of antibody-drug conjugates and anti-PD-1 antibodies, was filed April 12, 2024, and the national applications are currently pending in the United Arab Emirates, Australia, Brazil, Canada, Eurasian Patent Organization, European Patent Office, India, Indonesia, Israel, Japan, Republic of Korea, Malaysia, Mexico, New Zealand, Philippines, Saudi Arabia, South Africa, Singapore, South Africa, and the United States.
+Added: PCT/CN2025/071669, filed January 10, 2025, which relates to pharmaceutical compositions of antibody-drug conjugates, is pending in the CNIPA Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
+Added: In December 2024, the Company entered into a Development and License Agreement with GeneQuantum Healthcare (Suzhou) Co.
+Added: and Aimed Bio, Inc.
+Added: relating to certain Fibroblast Growth Factor Receptor ADCs.
+Added: The licensed patents include the following, among others:
+Added: PCT/CN2023/103152, filed June 28, 2023, which relates to anti-FGFR3 antibody conjugates and medical uses thereof, was filed in the CNIPA Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
+Added: Corresponding national applications are currently pending in the United Arab Emirates, Australia, Brazil, Canada, Colombia, Egypt, European Patent Office, India, Indonesia, Israel, Japan, Republic of Korea, Malaysia, Mexico, New Zealand, Philippines, Russia, Saudi Arabia, South Africa, Singapore, South Africa, Thailand, Ukraine, the United States, and Vietnam.
+Added: The patent applications, if granted, will expire in June 2043, not including possible patent term extensions in countries where such extensions are available.
+Added: PCT/CN2024/142547, filed December
+Added: 26, 2024, which relates to pharmaceutical compositions of anti-FGFR3 antibody conjugates, is pending in the CNIPA Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
+Added: Non-exclusively licensed patents include the following:
+Added: PCT/KR2022/000119, filed January 5, 2022, which relates to anti-FGFR3 antibodies and uses thereof, is pending in Australia, Canada, China, the European Patent Office, Japan, Korea and the United States.
+Added: PCT/CN2022/131904, filed November 15, 2022, which relates to exatecan derivatives, linker-payloads and conjugates thereof, is pending in Australia, Canada, China, the European Patent Office, Japan, Korea, Mexico and the United States.
+Added: PCT/CN2021/074082, filed January 28, 2021, which relates to ligase fusion proteins and applications thereof, is pending in Australia, China, the European Patent Office, Japan, Korea and the United States.
We have a portfolio of patents and patent applications in the U.S.
9 unchanged sentences
patents and patent applications corresponding to the '618 patent will expire in November 2038, not including possible patent term extensions in countries where such extensions are available.
−Removed: In addition, another patent applications directed to the treatment of SCA3 (PCT/US23/67326) was filed in May 2023 and is pending in the United States and other major market countries.
+Added: In addition, another patent application directed to the treatment of SCA3 (PCT/US23/67326) was filed in May 2023 and is pending in the United States and other major market countries.
These patents, if granted, will expire in May 2043, not including possible patent term extensions in countries where such extensions are available.
2 unchanged sentences
Another patent application directed to the treatment of glioblastoma (PCT/US23/69038) was filed June 26, 2023 and is pending in the United States and other major market countries.
−Removed: MoDE Platform, ARM Technology, MATE Conjugation Technology
−Removed: In January 2021, we entered into a worldwide, exclusive license agreement with Yale University for the development and commercialization of a novel MoDEs platform.
−Removed: The platform pertains to the clearance of disease-causing protein and
−Removed: other biomolecules by targeting them for lysosomal degradation using multi-functional molecules.
−Removed: The platform is differentiated from existing approaches in that it does not rely on ubiquitin ligases, and it allows for a broad range of targets to be degraded.
−Removed: The patent portfolio is directed to the composition of matter of bifunctional degraders and their use in degrading circulating proteins and treating diseases.
−Removed: 11,767,301, issued September 26, 2023, and U.S.
−Removed: 12,083,181, issued September 10, 2024, relate to bifunctional molecules to degrade circulating proteins, including BHV-1300.
−Removed: counterparts to the '301 patent and '181 patent are pending in the European Union, Canada, China and Hong Kong, and, if granted, will expire in April 2039, not including possible patent term extensions in countries where such extensions are available.
−Removed: 17/046221, filed October 8, 2020, relates to bifunctional small molecules to target selective degradation of circulating proteins.
−Removed: counterparts to the '221 application have been filed in China, European Union and Hong Kong and, if granted, will expire in April 2039, not including possible patent term extensions in countries where such extensions are available.
−Removed: 17/768166, filed April 11, 2022, relates to bifunctional compounds as degraders of autoantibodies.
−Removed: counterparts to the '166 application have been filed in the United Arab Emirates, Australia, Brazil, Canada, China, European Union, Israel, Japan, Republic of Korea, Mexico, Philippines, Saudi Arabia, Singapore, and South Africa and, if granted, will expire in October 2040, not including possible patent term extensions in countries where such extensions are available.
−Removed: 17/768145, filed April 11, 2022 relates to engineered antibodies as molecular degraders through cellular receptors.
−Removed: counterparts to the '145 application have been filed in the United Arab Emirates, Australia, Brazil, Canada, China, countries of the Eurasian Patent Organization, European Union, Israel, India, Japan, Republic of Korea, Mexico, New Zealand, Philippines, Saudi Arabia, South Africa and Singapore and, if granted, will expire in October 2040, not including possible patent term extensions in countries where such extensions are available.
−Removed: PCT/US2022/017319, which relates to targeted bifunctional degraders, was filed February 22, 2022, and national applications are pending in the United States and major jurisdictions worldwide.
−Removed: The patent applications, if granted, will expire in February 2042, not including possible patent term extensions in countries where such extensions are available.
−Removed: PCT/US2022/019658, which relates to bifunctional degraders of galactose deficient immunoglobulins, was filed March 10, 2022, and is pending in the United States and major jurisdictions worldwide.
−Removed: The patent applications, if granted, will expire in March 2042, not including possible patent term extensions in countries where such extensions are available.
−Removed: PCT/US2022/075527 and PCT/US2022/075535, filed August 26, 2022, which relate to difunctional degraders of pathogenic anti-β1ECII (the second extracellular loop of the β1 adrenergic receptor) autoantibodies, are pending in the United States and major jurisdictions worldwide.
−Removed: PCT/US2024/026709, filed April 28, 2024, which relates to degraders of immunoglobulin G, including BHV-1310, is pending in the United States PCT Receiving Office designating all PCT countries.
−Removed: PCT/US2024/026733, filed April 29, 2024, which relates to bifunctional degraders of galactose deficient immunoglobulins, including BHV-1400, is pending in the United States PCT Receiving Office designating all PCT countries.
+Added: MATE Conjugation Technology
We also acquired Kleo Pharmaceuticals, Inc.
1 unchanged sentence
This acquisition included Kleo’s proprietary technology platforms which are modular in design and enable rapid generation of novel immunotherapies that can be optimized against specified biological targets and combined with existing cell- or antibody-based therapies.
−Removed: These include ARM technology and MATE conjugation technology, which complement the MoDE technology licensed from Yale.
+Added: These include ARM technology and MATE conjugation technology, which complement the MoDE technology and our Oncology ADC technology.
17/769924, filed April 18, 2022, relates to directed conjugation technologies.
−Removed: counterparts to the '924 application have been filed in the United Arab Emirates, Australia, Brazil, Canada, China, countries of the Eurasian Patent Organization, European Union, Israel, India, Japan, Republic of Korea, Mexico, New Zealand, Philippines, Saudi Arabia, South Africa and Singapore and, if granted, will expire in November 2040, not including possible patent term extensions in countries where such extensions are available.
+Added: counterparts to the '924 application have been filed in the United Arab Emirates, Australia, Brazil, Canada, China, countries of the Eurasian Patent Organization, European Patent Office, Israel, India, Japan, Republic of Korea, Mexico, New Zealand, Philippines, Saudi Arabia, South Africa and Singapore and, if granted, will expire in November 2040, not including possible patent term extensions in countries where such extensions are available.
17/912563, filed September 19, 2022, relates to technologies for treating COVID infections.
7 unchanged sentences
The patent applications, if granted, will expire in May 2042, not including possible patent term extensions in countries where such extensions are available.
−Removed: PCT/US2024/025746, filed April 23, 2024 relates to BHV-1500 and national applications are pending in the United States and major jurisdictions worldwide.
−Removed: The patent applications, if granted, will expire in April 2044, not including possible patent term extensions in countries where such extensions are available.
−Removed: In January 2022, we entered into an exclusive global license and research agreement to develop and commercialize TRPM3 antagonists to address the growing proportion of people worldwide living with chronic pain disorders.
−Removed: The TRPM3 antagonist platform was discovered at the Centre for Drug Design and Discovery (“CD3”) and the Laboratory of Ion
−Removed: Channel Research (“LICR”) at Katholieke Universiteit Leuven (KU Leuven).
−Removed: PCT/EP2021/082853, which relates to aryl derivatives for treating TRPM3 mediated disorders, was filed November 24, 2021 and national applications are pending in the United Arab Emirates, Australia, Brazil, Canada, China, countries of the Eurasian Patent Organization, European Union, Israel, India, Japan, Republic of Korea, Mexico, New Zealand, Philippines, Saudi Arabia, South Africa, Singapore, Taiwan and the U.S.
−Removed: The patent applications, if granted, will expire in November 2041, not including possible patent term extensions in countries where such extensions are available.
−Removed: PCT/EP2021/082865, which relates to heterocycle derivatives for treating TRPM3 mediated disorders, including BHV-2100, was filed November 24, 2021 and national applications are pending in the United Arab Emirates, Australia, Brazil, Canada, China, Eurasia, European Union, Israel, Japan, Republic of Korea, Mexico, New Zealand, Philippines, Saudi Arabia, Singapore, Taiwan, South Africa and the U.S.
−Removed: The patent applications, if granted, will expire in November 2041, not including possible patent term extensions in countries where such extensions are available.
−Removed: Patent 9,194,863, issued November 24, 2015, which relates to screening methods for analgesic agents, has also been granted in Belgium, Switzerland, Germany, Denmark, Spain, Finland, France, United Kingdom, Ireland, Italy, Netherlands and Sweden.
−Removed: The patents, will expire in May 2032, not including possible patent term extensions in countries where such extensions are available.
−Removed: In addition, seven PCT applications directed to various TRPM3 antagonist chemotypes were filed in May 2023 (PCT/EP2023/063992, PCT/EP2023/063994, PCT/EP2023/063996, PCT/EP2023/063997, PCT/US2023/067443, PCT/US2023/067446, PCT/US2023/067448).
−Removed: The patent applications, if granted, will expire in May 2043, not including possible patent term extensions in countries where such extensions are available.
−Removed: In December 2021, we entered into a worldwide license agreement with Bristol Myers Squibb for the global development and commercialization rights to taldefgrobep alfa (BHV-2000), a novel, Phase 3-ready anti-myostatin adnectin.
−Removed: Myostatin is a natural protein that limits skeletal muscle growth, an important process in healthy muscular development.
−Removed: Patent 8,853,154 issued October 7, 2014, U.S.
−Removed: Patent 8,933,199, issued January 13, 2015, U.S.
−Removed: Patent 8,993,265, issued March 31, 2015, U.S.
−Removed: Patent 9,493,546, issued November 15, 2016, U.S.
−Removed: Patent 9,662,373, issued May 30, 2017, U.S.
−Removed: Patent 10,245,302, issued April 2, 2019, U.S.
−Removed: Patent 10,406,212, issued September 10, 2019, and U.S.
−Removed: Patent 11,813,315, issued November 14, 2023, are directed to fibronectin based scaffold domain proteins that bind to myostatin.
−Removed: patents expire in September 2033, not including possible patent term extensions.
−Removed: counterparts to the U.S.
−Removed: patents have been granted in Argentina, Austria, Australia, Belgium, Bulgaria, Brazil, Canada, Switzerland, Chile, China, Colombia, Czechia, Germany, Denmark, Algeria, Egypt, Spain, Finland, France, United Kingdom, Greece, Hong Kong, Croatia, Hungary, Indonesia, Ireland, Israel, India, Italy, Japan, Republic of Korea, Lithuania, Morocco, Macao, Mexico, Malaysia, Netherlands, Norway, New Zealand, Peru, Philippines, Poland, Portugal, Romania, Serbia, Russia, Sweden, Singapore, Slovenia, Slovakia, Thailand, Tunisia, Turkey, Taiwan, Uruguay, Venezuela, Vietnam and South Africa.
−Removed: patents will expire in September 2033, not including possible patent term extensions in countries where such extensions are available.
−Removed: 16/607688, filed May 3, 2018, relates to stable formulations fibronectin based scaffold domain proteins that bind to myostatin.
−Removed: counterparts to the '688 application have been granted in Israel, Japan, Korea and are pending in Australia, Canada, China, European Union, Hong Kong, Mexico, Singapore and Taiwan.
−Removed: patents and patent applications, if granted, will expire in May 2038, not including possible patent term extensions in countries where such extensions are available.
−Removed: In March 2023, we entered into an exclusive, worldwide (excluding People’s Republic of China and its territories and possessions) license agreement with Highlightll pursuant to which we obtained the right to research, develop, manufacture and commercialize Highlightll’s brain penetrant dual TYK2/JAK1 inhibitor program.
−Removed: Patent RE49834 (the “‘834 Patent”), having an issue date of February 13, 2024, is directed to BHV-8000 and will expire in September 2037, not including possible patent term extensions.
−Removed: counterparts to the ‘834 patent have been granted in Australia, European Union, Israel, India, Japan, Mexico, and New Zealand, and patent applications to the ‘834 patent are pending in Brazil, Canada, Eurasia, and Republic of Korea.
−Removed: patents and patent applications, if granted, will expire in September 2037, not including possible patent term extensions in countries where such extensions are available.
−Removed: In addition, PCT/CN2022/113807, filed August 22, 2022, which relate to methods of treating CNS disorders with dual TYK2/JAK1 inhibitors, is pending in the CNIPA Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
−Removed: The patent applications, if granted, will expire in August 2042, not including possible patent term extensions in countries where such extensions are available.
−Removed: In January 2024, the Company acquired Pyramid Biosciences, Inc.
−Removed: (“Pyramid”), pursuant to an Agreement and Plan of Merger, dated January 7, 2024 ("the Pyramid Agreement").
−Removed: As a result of the merger, the Company acquired rights under certain patents exclusively licensed to Pyramid from GeneQuantum Healthcare (Suzhou) Co.
−Removed: The licensed patents include the following, among others:
−Removed: PCT/CN2023/107444, filed July 14, 2023, which relates to anti-TROP2 antibodies and conjugates, including BHV-1510, is pending in the CNIPA Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
−Removed: PCT/CN2024/087405, filed April 12, 2024, which relates to combinations of antibody-drug conjugates and anti-PD-1 antibodies, is pending in the CNIPA Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
−Removed: PCT/CN2025/071669, filed January 10, 2025, which relates to pharmaceutical compositions of antibody-drug conjugates, is pending in the CNIPA Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
−Removed: In December 2024, the Company entered into a Development and License Agreement with GeneQuantum Healthcare (Suzhou) Co.
−Removed: and Aimed Bio, Inc.
−Removed: relating to certain Fibroblast Growth Factor Receptor ADCs.
−Removed: The licensed patents include the following, among others:
−Removed: WO2024002154A1, published January 4, 2024, which relates to anti-FGFR3 antibody conjugates and medical uses thereof is pending in the CNIPA Receiving Office of the Patent Cooperation Treaty and all countries were designated for filing.
−Removed: WO2022149837, published July 14, 2022, which relates to anti-FGFR3 antibodies and uses thereof, is pending in Australia, Canada, China, the European Patent Office, Japan, Korea and the United States.
−Removed: WO2023088235, published May 25, 2023, which relates to exatecan derivatives, linker-payloads and conjugates thereof, is pending in Australia, Canada, China, the European Patent Office, Japan, Korea, Mexico and the United States.
−Removed: WO2022160156, published August 4, 2022, which relates to ligase fusion proteins and applications thereof, is pending in Australia, China, the European Patent Office, Japan, Korea and the United States.
+Added: PCT/US2024/025746, filed April 23, 2024, claims BHV-1500 and national applications are pending in the United States and major jurisdictions worldwide.
+Added: The patent applications, if
+Added: granted, will expire in April 2044, not including possible patent term extensions in countries where such extensions are available.
Licensing and Other Agreements
48 unchanged sentences
The review process can be extended by FDA requests for additional information or clarification.
−Removed: The FDA reviews NDAs to
−Removed: determine, among other things, whether the proposed product is safe and effective for its intended use, and whether the product is being manufactured in accordance with cGMPs to assure and preserve the product's identity, strength, quality and purity.
+Added: The FDA reviews NDAs to determine, among other things, whether the proposed product is safe and effective for its intended use, and whether the product is being manufactured in accordance with cGMPs to assure and preserve the product's identity, strength, quality and purity.
Before approving an NDA, the FDA typically will inspect the facilities at which the product is manufactured and will not approve the product unless the manufacturing facilities comply with cGMPs.
40 unchanged sentences
Section 505(b)(2) was enacted as part of the Hatch-Waxman Amendments.
−Removed: A Section 505(b)(2) NDA is an application that contains full reports of investigations of safety and effectiveness, but where at least some of the information required for approval comes from studies not conducted by, or for, the applicant and for which the applicant has not obtained a right of reference or use from the company by or for whom the investigations were conducted.
+Added: A Section 505(b)(2) NDA is an application that contains full reports of investigations of safety and effectiveness, but where at least some of the information required for approval comes from studies not
+Added: conducted by, or for, the applicant and for which the applicant has not obtained a right of reference or use from the company by or for whom the investigations were conducted.
This type of application permits reliance for such approvals on literature or on an FDA finding of safety, effectiveness or both for an approved drug product.
28 unchanged sentences
An innovative chemical pharmaceutical product is entitled to five years of RDP in the U.S., during which the FDA cannot approve generic substitutes.
−Removed: If an innovator’s patent is challenged, as described above, a generic manufacturer may file
−Removed: its ANDA after the fourth year of the five-year RDP period.
+Added: If an innovator’s patent is challenged, as described above, a generic manufacturer may file its ANDA after the fourth year of the five-year RDP period.
A pharmaceutical drug product that contains an active ingredient that has been previously approved in an NDA, but is approved in a new formulation, but not for the drug itself, or for a new indication on the basis of new clinical studies, may receive three years of RDP for that formulation or indication.
5 unchanged sentences
However, although an application for approval of a biosimilar version may be filed four years after approval of the innovator product, qualified innovative biological products will receive 12 years of regulatory exclusivity, meaning that the FDA may not approve a biosimilar version until 12 years after the innovative biological product was first approved by the FDA.
−Removed: The law also provides a mechanism for innovators to enforce the patents that protect innovative biological products and for biosimilar applicants to challenge the patents.
+Added: The law also provides a mechanism for innovators to enforce the patents that protect innovative biological products and for biosimilar applicants to challenge the
Such patent litigation may begin as early as four years after the innovative biological product is first approved by the FDA.
23 unchanged sentences
In contrast to the U.S., patents in the EU are not listed with regulatory authorities.
−Removed: Generic versions of pharmaceutical products can be approved after data protection expires, regardless of whether the
−Removed: innovator holds patents covering its drug.
+Added: Generic versions of pharmaceutical products can be approved after data protection expires, regardless of whether the innovator holds patents covering its drug.
Thus, it is possible that an innovator may be seeking to enforce its patents against a generic competitor that is already marketing its product.
34 unchanged sentences
For example, the payor's reimbursement payment rate may not be adequate or may require patient co-payments that patients find unacceptably high.
−Removed: Additionally, coverage and
−Removed: reimbursement for products can differ significantly from one payor system to the next.
+Added: Additionally, coverage and reimbursement for products can differ significantly from one payor system to the next.
Private payor systems set reimbursement policy in accordance with their particular model.
8 unchanged sentences
If third-party payors do not consider a product to be cost-effective compared to other available therapies, they may not cover the product after approval as a benefit under their plans or, they may deem a subpopulation of eligible patients based on greater unmet need as eligible for reimbursement.
−Removed: Thus, obtaining and maintaining reimbursement status can be time-consuming and costly.
+Added: Thus, obtaining and maintaining reimbursement status can
+Added: be time-consuming and costly.
However, drug developers accept these requirements as a condition of reimbursement, analogous to their acceptance of the level of evidence needed to obtain regulatory approval.
72 unchanged sentences
In addition, recent administrations have released various executive orders with provisions aimed at, among other things, prescription drug pricing, lowering drug costs for Medicare and Medicaid beneficiaries and setting forth various potential policies or actions that Congress or administrative agencies could pursue.
+Added: In July 2025, the One Big Beautiful Act ("OBBBA") was enacted which, among other things, is directed to improving efficiencies in U.S.
+Added: federal healthcare spending over the next decade, primarily within Medicaid.
We expect that additional U.S.
6 unchanged sentences
The Foreign Corrupt Practices Act (the "FCPA") prohibits any U.S.
−Removed: individual or business from paying, offering, or authorizing payment or offering of anything of value, directly or indirectly, to any foreign official, political party or candidate for the purpose of influencing any act or decision of the foreign entity in order to assist the individual or business in obtaining or retaining business.
+Added: individual or business from paying, offering, or authorizing payment or offering of anything of value, directly or indirectly, to any foreign official, political party or candidate for the purpose of influencing any act or decision of the foreign entity in order to assist the individual or
+Added: business in obtaining or retaining business.
The FCPA also obligates companies whose securities are listed in the United States to comply with accounting provisions requiring the company to maintain books and records that accurately and fairly reflect all transactions of the corporation, including international subsidiaries, and to devise and maintain an adequate system of internal accounting controls for international operations.
12 unchanged sentences
If a complaint is financial in nature, the Audit Committee Chair is notified concurrently, which triggers an investigation, action and report.
−Removed: Incidents are reported up to the Board of Directors on a quarterly basis.
Environmental Commitment
9 unchanged sentences
For third-party vendor selection and oversight, we have adopted standard operating procedures that apply to employees and subcontractors who on our behalf, oversee and conduct research regulated by the FDA.
−Removed: We retain ultimate
−Removed: authority and responsibility for the conduct of regulated research, manufacturing, and testing and we must ensure that contracted services are conducted in accordance with Good Practice Guidelines and all applicable regulations.
+Added: We retain ultimate authority and responsibility for the conduct of regulated research, manufacturing, and testing and we must ensure that contracted services are conducted in accordance with Good Practice Guidelines and all applicable regulations.
Human Capital Management
4 unchanged sentences
An important part of our talent recruitment is our robust paid internship program for high school, college and graduate-level students.
−Removed: This program offers opportunities to students in the community and develops a roadmap for ‘entry-level’ candidates.
+Added: This program offers opportunities to students in the community and develops a roadmap for
+Added: ‘entry-level’ candidates.
We evaluate the success of our recruitment program through metrics such as time to hire, offer acceptance rate, turnover rate and business results.
21 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.