Biohaven Ltd

Previous wording

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 we submitted a new drug application (“NDA”) in Spinocerebellar Ataxia Type 3 (“SCA3”) to the U.S. FDA and marketing authorisation application ("MAA") to the European Medicines Agency ("EMA"). 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"). Other product candidates include BHV-5500, which is an antagonist of the glutamate N-methyl-D-aspartate (“NMDA”) receptor and its oral prodrug BHV-5000.

Current wording

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, we plan to submit a new drug application (“NDA”) in Spinocerebellar Ataxia (“SCA”) to the U.S. FDA and have submitted a marketing authorisation application ("MAA") in SCA Type 3 ("SCA3") to the European Medicines Agency ("EMA"). 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"). Other product candidates include BHV-5500, which is an antagonist of the glutamate N-methyl-D-aspartate (“NMDA”) receptor and its oral prodrug BHV-5000.

Previous wording

SCAs are a group of ultra-rare, dominantly inherited neurodegenerative disorders predominantly characterized by atrophy of the cerebellum, brainstem, and spinal cord. The disease course of SCA is one of relentless progression over years and inevitably leads to clinical deterioration of motor function, gait imbalance with frequent falling, severe speech impairment, swallowing difficulties, and premature death. SCAs are thought to be pathogenetically related but disease course and brain region involvement are known to vary

Current wording

SCAs are a group of ultra-rare, dominantly inherited neurodegenerative disorders predominantly characterized by atrophy of the cerebellum, brainstem, and spinal cord. The disease course of SCA is one of relentless progression over years and inevitably leads to clinical deterioration of motor function, gait imbalance with frequent falling, severe speech impairment,

Previous wording

between the different genotypes. SCA3, also known as Machado-Joseph disease, is the most common genotype, with a prevalence of up to 6,000 patients in North America and up to 4,600 in the European Union (“EU”) and Japan, and accounts for approximately 30% to 50% of SCAs worldwide. Currently, there are no approved symptomatic or neuroprotective treatments for SCA.

Current wording

swallowing difficulties, and premature death. SCAs are thought to be pathogenetically related but disease course and brain region involvement are known to vary between the different genotypes. SCA affects approximately 15,000 people in the United States and 24,000 in Europe and the United Kingdom. SCA3, also known as Machado-Joseph disease, is the most common genotype, and accounts for approximately 30% to 50% of SCAs worldwide. Currently, there are no approved symptomatic or neuroprotective treatments for SCA.

Previous wording

Based on the findings of further analyses performed and the debilitating nature of SCA, in May 2023 we announced that we submitted a New Drug Application ("NDA") to the FDA for troriluzole for the treatment of SCA3. In July 2023, the FDA informed us that it would not review the recently submitted NDA application for troriluzole given that the study's primary endpoint was not met and thus, would not permit a substantive review. In followup to the regulatory decision on the NDA application, we held followup meetings with the FDA regarding the SCA data.

Current wording

Application ("NDA") to the FDA for troriluzole for the treatment of SCA3. In July 2023, the FDA informed us that it would not review the recently submitted NDA application for troriluzole given that the study's primary endpoint was not met and thus, would not permit a substantive review. In followup to the regulatory decision on the NDA application, we held followup meetings with the FDA regarding the SCA data.

Previous wording

In October, 2023, the European Medicines Agency ("EMA") informed us that our Marketing Authorization Application ("MAA") for troriluzole (Dazluma) in the treatment of SCA has been validated and is now under review by EMA's Committee for Medicinal Products for Human Use ("CHMP").

Current wording

In October, 2023, the EMA informed us that our Marketing Authorization Application ("MAA") for troriluzole (Dazluma) in the treatment of SCA3 has been validated and is now 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 are now being updated with a broader indication to include all SCA genotypes, in light of the new positive BHV4157-206-RWE study data (discussed below).

Previous wording

We commenced a Phase 2/3 double-blind, randomized, controlled trial to assess the efficacy of troriluzole in adults with OCD in December 2017. The Phase 2/3 study results were announced in June 2020. 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 outcome measure at week 12. 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

Current wording

We commenced a Phase 2/3 double-blind, randomized, controlled trial to assess the efficacy of troriluzole in adults with OCD in December 2017. The Phase 2/3 study results were announced in June 2020. 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 outcome measure at week 12. 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. Troriluzole’s safety profile was generally consistent with past clinical trial experience with its active metabolite, riluzole. Treatment emergent adverse events (“TEAE”s) were mostly reported to be mild in intensity. 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.

Previous wording

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. The IA was planned to be conducted by an independent Data Monitoring Committee after approximately 70% of subjects in the primary analysis population reached the primary endpoint. The Data Monitoring Committee convened in the second quarter of 2024 to review the IA and informed the Company that the study may continue. 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. We expect to report topline data from the first Phase 3 study in OCD in the first half of 2025.

Current wording

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. The IA was planned to be conducted by an independent Data Monitoring Committee after approximately 70% of subjects in the primary analysis population reached the primary endpoint. The Data Monitoring Committee convened in the second quarter of 2024 to review the IA and informed the Company that the study may continue. As such, we continue enrolling patients in the first

Previous wording

There is a similarly designed pre-planned IA for the second Phase 3 study in OCD, with topline results from this IA anticipated in the second half of 2024.

Current wording

There is a similarly designed pre-planned IA for the second Phase 3 study in OCD, with topline results from this IA anticipated in the fourth quarter of 2024.

Previous wording

In July 2022, the Company and GCAR announced that enrollment has commenced in GBM AGILE for the evaluation of troriluzole. Enrollment in the study is ongoing.

Current wording

In July 2022, the Company and GCAR announced that enrollment has commenced in GBM AGILE for the evaluation of troriluzole. The study is currently ongoing.

Previous wording

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 and now referred to as BHV-2000), a novel, Phase 3-ready anti-myostatin adnectin. Myostatin is a natural protein that limits skeletal muscle growth, an important process in healthy muscular development that can lead to improvements of lean mass and loss of adipose tissue. In patients with neuromuscular diseases, active myostatin can critically limit the growth needed to achieve developmental and functional milestones. Myostatin inhibition is a promising therapeutic strategy for enhancing muscle mass and strength in a range of pediatric and adult neuromuscular conditions. In addition, preclinical and early clinical data suggest that blocking myostatin and downstream signaling through its receptors on skeletal muscle may produce physical and metabolic changes that are important to individuals living with overweight and obesity, including reducing body fat and improving insulin sensitivity while increasing lean muscle mass. 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.

Current wording

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 and now referred to as BHV-2000), a novel, Phase 3-ready anti-myostatin adnectin. Myostatin is a natural protein that limits skeletal muscle growth, an important process in healthy muscular development that can lead to improvements of lean mass and loss of adipose tissue by acting through the activin receptor type-2B ("ActRIIb"). In patients with neuromuscular diseases, active myostatin can critically limit the growth needed to achieve developmental and functional milestones. Myostatin inhibition is a promising therapeutic strategy for enhancing muscle mass and strength in a range of pediatric and adult neuromuscular conditions. In addition, preclinical and early clinical data suggest that blocking myostatin and downstream signaling through its receptors on skeletal muscle may produce physical and metabolic changes that are important to individuals living with overweight and obesity, including reducing body fat and improving insulin sensitivity while increasing lean muscle mass. Taldefgrobep’s novel mode of action inhibiting both myostatin directly and through the ActRIIb and its unique impact on body composition suggest it could be used as monotherapy or in combination with other anti-obesity medications.

Previous wording

and growth of muscle mass are compromised, resulting in progressive weakness and muscle atrophy, reduced motor function, impaired quality of life and often death. The Phase 3 placebo-controlled, double-blind trial is designed to evaluate the efficacy and safety of taldefgrobep as an adjunctive therapy for participants who are already taking a stable dose of nusinersen or risdiplam or have a history of treatment with onasemnogene abeparvovec-xioi (Zolgensma), compared to placebo. The study is neither restricted nor limited to patients based on ambulatory status or classification of SMA and is designed to randomize approximately 180 patients in this randomized, double-blind, placebo-controlled global trial. Baseline characteristics of the population enrolled in the ongoing Phase 3 study in SMA were reported and confirmed to be well matched to the target clinical population. The primary endpoint of the study, the 32 Item Motor Function Measurement, is a reliable and validated endpoint for measuring clinically meaningful benefit in SMA. We expect to report topline data from our Phase 3 study in the second half of 2024.

Current wording

In July 2022, we commenced enrollment in a Phase 3 clinical trial of BHV-2000 assessing the efficacy and safety of taldefgrobep alfa in Spinal Muscular Atrophy ("SMA"). SMA is a rare, progressively debilitating motor neuron disease in which development and growth of muscle mass are compromised, resulting in progressive weakness and muscle atrophy, reduced motor function, impaired quality of life and often death. The Phase 3 placebo-controlled, double-blind trial is designed to evaluate the efficacy and safety of taldefgrobep as an adjunctive therapy for participants who are already taking a stable dose of nusinersen or risdiplam or have a history of treatment with onasemnogene abeparvovec-xioi (Zolgensma), compared to placebo. The study is neither restricted nor limited to patients based on ambulatory status or classification of SMA and is designed to randomize approximately 180 patients in this randomized, double-blind, placebo-controlled global trial. Baseline characteristics of the population enrolled in the ongoing Phase 3 study in SMA were reported and confirmed to be well matched to the target clinical population. The

Previous wording

In April 2024, we announced that the FDA granted "rare pediatric disease" designation for taldefgrobep alfa. The designation provides for the potential for taldefgrobep to receive a priority review voucher (“PRV”) if ultimately approved for the indication of SMA.

Current wording

In April 2024, we announced that the FDA granted "rare pediatric disease" designation for taldefgrobep alfa. 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. The rare pediatric disease PRV program will begin to sunset in December of 2024 and will not apply for approvals after September 30, 2026.

Previous wording

We plan to initiate a Phase 2 clinical trial of taldefgrobep in the management of metabolic disease in the second half of 2024. The study will evaluate the ability of taldefgrobep to maintain lean mass muscle as an adjunctive to standard of care GLP-1 therapy in adults living with overweight and obesity. We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.

Current wording

We plan to initiate a Phase 2 clinical trial of taldefgrobep in the management of metabolic disease in the fourth quarter of 2024 or early 2025. The study will evaluate the ability of taldefgrobep to maintain lean mass muscle as an adjunctive to standard of care GLP-1 therapy in adults living with overweight and obesity. We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.

Previous wording

Epilepsy is the initial disease we are targeting with activators from our Kv7 platform. 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”). 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. 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 GABAA receptors. The lack of GABAA-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. By adding BHV-7000 to our pipeline, we aim to bring this potassium channel modulator as a potential solution to patients with epilepsy who remain uncontrolled on their current regimens.

Current wording

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”). 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. 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 GABAA receptors. The lack of GABAA-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. We aim to bring this potassium channel modulator as a potential solution to patients with epilepsy who remain uncontrolled on their current regimens.

Previous wording

In May 2024, we reported positive pharmacokinetic and safety data from the completed Phase 1 study with BHV-2100. The results demonstrated rapid absorption with therapeutic concentrations achieved by 20 minutes. The favorable tolerability profile at single doses up to 500 mg exceeds the anticipated therapeutic dose and is well above the EC90 concentration. Based on these findings, we plan to advance BHV-2100 into a Phase 2 study in the acute treatment of migraine and a proof-of-concept study in pain in the second half of 2024.

Current wording

In May 2024, we reported positive pharmacokinetic and safety data from the completed Phase 1 study with BHV-2100. The results demonstrated rapid absorption with therapeutic concentrations achieved by 20 minutes. The favorable tolerability profile at single doses up to 500 mg exceeds the anticipated therapeutic dose and is well above the EC90 concentration. Based on these findings, we have initiated a Phase 2 study of BHV-2100 in the acute treatment of migraine and a proof-of-concept study in pain in the fourth quarter of 2024.

Previous wording

BHV-2100 is also being developed as a potential non-opioid treatment for neuropathic pain. 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. The Company expects to conduct a proof of concept study for neuropathic pain in the second half of 2024.

Current wording

BHV-2100 is also being developed as a potential non-opioid treatment for neuropathic pain. 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. The Company initiated a proof of concept study for neuropathic pain in the fourth quarter of 2024.

Previous wording

Dysregulation of the immune system has been implicated in several neurodegenerative and neuroinflammatory disorders including Parkinson's disease, multiple sclerosis, Alzheimer's disease, amyotrophic lateral sclerosis and autoimmune encephalitis. Over-active immune cells and microglia driving chronic neuroinflammation result in release of cytokines with activation of leukocytes that is thought to contribute to neuronal injury, death, gliosis, and demyelination. The TYK2 and JAK1 signal transduction pathways mediate highly complementary immune and inflammatory signaling events. Targeted, small-molecule therapies that inhibit TYK2 or JAK kinases have separately demonstrated robust efficacy in autoimmune, dermatologic and gastrointestinal disorders. TYK2 is a validated immune target as evidenced by a recent peripheral program that gained FDA approval, and there are multiple additional peripheral non-CNS programs in clinical development. Brain penetrant inhibitors of TYK2/JAK1 have the potential to bring this validated immune target to brain disorders.

Current wording

Dysregulation of the immune system has been implicated in several neurodegenerative and neuroinflammatory disorders including Parkinson's disease, multiple sclerosis, Alzheimer's disease, amyotrophic lateral sclerosis and autoimmune encephalitis. Over-active immune cells and microglia driving chronic neuroinflammation resulting in release of cytokines with activation of leukocytes that are thought to contribute to neuronal injury, death, gliosis, and demyelination. The TYK2 and JAK1 signal transduction pathways mediate highly complementary immune and inflammatory signaling events. Targeted, small-molecule therapies that inhibit TYK2 or JAK kinases have separately demonstrated robust efficacy in autoimmune, dermatologic and gastrointestinal disorders. TYK2 is a validated immune target as evidenced by a recent peripheral program that gained FDA approval, and there are multiple additional peripheral non-CNS programs in clinical development. Brain penetrant inhibitors of TYK2/JAK1 have the potential to bring this validated immune target to brain disorders.

Previous wording

There are currently no brain penetrant, selective, dual TYK2/JAK1 inhibitors approved for brain disorders. In May 2023, we began dosing with BHV-8000 (previously TLL-041), in a Phase 1 study in normal healthy volunteers. In May 2024, we reported positive results from the Phase 1 single and multiple ascending dose study with BHV-8000 in healthy subjects, including evidence of target engagement along with a safe and well tolerated profile. The Phase 1 study also confirmed cerebrospinal fluid ("CSF") exposures of BHV-8000 and

Current wording

There are currently no brain penetrant, selective, dual TYK2/JAK1 inhibitors approved for brain disorders. In May 2023, we began dosing with BHV-8000 (previously TLL-041), in a Phase 1 study in normal healthy volunteers. In May 2024, we reported positive results from the Phase 1 single and multiple ascending dose study with BHV-8000 in healthy subjects, including evidence of target engagement along with a safe and well tolerated profile. The Phase 1 study also confirmed cerebrospinal fluid ("CSF") exposures of BHV-8000 and evidence of biomarker target engagement within the CNS. We also announced the successful completion of two FDA meetings with favorable feedback enabling registrational programs for Parkinson's disease and for the prevention of amyloid-related imaging abnormalities ("ARIA"), a novel indication.

Previous wording

We anticipate beginning Phase 2/3 clinical trials with BHV-8000 in the second half of 2024 targeting neuroinflammatory conditions, potentially including Amyloid-Related Imaging Abnormalities ("ARIA") in Alzheimer’s disease, Alzheimer's disease, Parkinson's disease and multiple sclerosis. We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.

Current wording

We anticipate beginning Phase 2/3 clinical trials with BHV-8000 in the first half of 2025 targeting neuroinflammatory conditions, potentially including Amyloid-Related Imaging Abnormalities ("ARIA") in Alzheimer’s disease, Alzheimer's disease, Parkinson's disease and multiple sclerosis. We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.

Previous wording

BHV-1300 is an IgG degrader which we are initially developing for the treatment of rheumatoid arthritis ("RA"). RA is a chronic autoimmune disease estimated to affect 1 to 2% of the global population. RA primarily affects the joints, causing pain, swelling, stiffness, and loss of function.

Current wording

("RA"). RA is a chronic autoimmune disease estimated to affect 1 to 2% of the global population. RA primarily affects the joints, causing pain, swelling, stiffness, and loss of function.

Previous wording

the first 4 cohorts completed to date (see figure below). Preliminary IgG lowering data is consistent with modeling, with dose- and time-dependent IgG lowering observed even in initial low-dose cohorts. Some subjects experienced IgG reductions as low as 50 to 70% of baseline. BHV-1300 demonstrated reduction of IgG without significantly impacting LFTs, albumin, LDL cholesterol or other serum labs. BHV-1300 has been safe and well tolerated to date, with no serious or severe adverse events. Most AEs were mild, deemed unrelated to study drug and resolved spontaneously. 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. No adverse trends have been observed in vital signs or ECGs. Modeling suggests additional cohorts in the Phase 1 study will achieve greater than 70% lowering of IgG utilizing doses compatible with subcutaneous administration.

Current wording

The Phase 1 study examining BHV-1300 was initiated in the first quarter of 2024 and remains ongoing. In May 2024, we reported preliminary results from our Phase 1 study of BHV-1300. These results in healthy subjects reported that BHV-1300 rapidly and selectively lowers IgG in a dose-dependent manner in the first 4 cohorts completed to date (see figure below). Preliminary IgG lowering data is consistent with modeling, with dose- and time-dependent IgG lowering observed even in initial low-dose cohorts. Some subjects experienced IgG reductions as low as 50 to 70% of baseline. BHV-1300 demonstrated reduction of IgG without significantly impacting LFTs, albumin, LDL cholesterol or other serum labs. BHV-1300 has been safe and well tolerated to date, with no serious or severe adverse events. Most AEs were mild, deemed unrelated to study drug and resolved spontaneously. 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. No adverse trends have been observed in vital signs or ECGs. Modeling suggests additional cohorts in the Phase 1 study will achieve greater than 70% lowering of IgG utilizing doses compatible with subcutaneous administration.

Previous wording

The Phase 1 study has also compared intravenous and subcutaneous administration of BHV-1300. 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. This new human data confirms the feasibility

Current wording

The Phase 1 study has also compared intravenous and subcutaneous administration of BHV-1300. 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. This new human data confirms the feasibility of the Company's plan for convenient dosing of BHV-1300 with a patient self-administered subcutaneous auto-injector. The Company expects to provide an update from our SAD/MAD study by the end of 2024.

Previous wording

In January 2024, we demonstrated optimization of degrader technology with BHV-1310 which allows for deeper reductions in IgG after single dose (see figure below). The deep and rapid reductions observed suggest that BHV-1310 could have potential application in acute settings. We expect to initiate Phase 1 studies of BHV-1310 in the second half of 2024. We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.

Current wording

In January 2024, we demonstrated optimization of degrader technology with BHV-1310 which allows for deeper reductions in IgG after single dose (see figure below). The deep and rapid reductions observed suggest that BHV-1310 could have potential application in acute settings. We expect to initiate Phase 1 studies of BHV-1310 in the fourth quarter of 2024. We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.

Previous wording

BHV-1400 is a selective MoDE which is being developed to target Gd-IgA1 for the treatment of IgA Nephropathy. 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. 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 MoDE degraders successfully internalize and degrade these immune-complexes. We

Current wording

BHV-1400 is a selective MoDE which is being developed to target Gd-IgA1 for the treatment of IgA Nephropathy. 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. 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 MoDE degraders successfully internalize and degrade these immune-complexes. We expect to initiate Phase 1 studies of BHV-1400 in the fourth quarter of 2024. We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.

Previous wording

We are developing BHV-1600 for the treatment of dilated cardiomyopathy. Dilated cardiomyopathy is a condition where the cardiac muscle contracts less effectively, the chambers of the heart are enlarged and thinning of cardiac walls results. This can lead to cardiac valvular incompetency, arrhythmias, thrombosis, and heart failure. We expect to initiate Phase 1 studies of BHV-1600 in the second half of 2024. We are evaluating and have not yet finalized potential clinical trial designs, including size and primary and secondary endpoints.

Current wording

We are developing BHV-1600 for the treatment of dilated cardiomyopathy. Dilated cardiomyopathy is a condition where the cardiac muscle contracts less effectively, the chambers of the heart are enlarged and thinning of cardiac walls results. This can lead to cardiac valvular incompetency, arrhythmias, thrombosis, and

Previous wording

In the fourth quarter of 2021, we initiated a Phase 1a/1b trial in multiple myeloma patients using its antibody recruiting molecule BHV-1100 in combination with autologous cytokine induced memory-like natural killer cells and immune globulin to target and kill multiple myeloma cells expressing the cell surface protein CD38. BHV-1100 is the lead clinical asset from Biohaven’s Antibody Recruiting Molecule ("ARM™") Platform developed from a strategic alliance with PeptiDream Inc. ("PeptiDream") (TYO: 4587). This open-label single center Phase 1a/1b study will assess the safety and tolerability as well as exploratory efficacy endpoints in newly diagnosed multiple myeloma patients who have tested positive for minimal residual disease (“MRD+”) in first or second remission prior to autologous stem cell transplant (“ASCT”). We plan to enroll 30 newly diagnosed multiple myeloma patients. The primary outcome measures are dose limiting toxicities following combination product administration (time frame: 100 days post-combination product administration) and incidence and severity of side effects related to the combination product (time frame: 90 to 100 days post-combination product administration).

Current wording

In the fourth quarter of 2021, we initiated a Phase 1a/1b trial in multiple myeloma patients using its antibody recruiting molecule BHV-1100 in combination with autologous cytokine induced memory-like natural killer cells and immune globulin to target and kill multiple myeloma cells expressing the cell surface protein CD38. BHV-1100 is the lead clinical asset from Biohaven’s Antibody Recruiting Molecule ("ARM™") Platform developed from a strategic alliance with PeptiDream Inc. ("PeptiDream") (TYO: 4587). This open-label single center Phase 1a/1b study will assess the safety and tolerability as well as exploratory efficacy endpoints in newly diagnosed multiple myeloma patients who have tested positive for minimal residual disease

Previous wording

BHV-1510 is a next-generation Trophoblast Cell Surface Antigen 2 ("TROP-2") directed ADC employing an optimized next-generation construct with novel linker-payload and enzymatic, site-specific conjugation, targeting TROP2-expressing carcinomas. Carcinoma refers to a malignant neoplasm of epithelial origin. Carcinomas account for 80 to 90 percent of all cancer cases and several examples have been successfully treated with ADCs. Abundant TROP-2 expression has been described for many carcinoma subtypes.

Current wording

In January 2024, we acquired BHV-1510 through our acquisition of Pyramid Biosciences, Inc. ("Pyramid"). BHV-1510 is a next-generation Trophoblast Cell Surface Antigen 2 ("TROP-2") directed ADC employing an optimized next-generation construct with novel linker-payload and enzymatic, site-specific conjugation, targeting TROP2-expressing carcinomas. Carcinoma refers to a malignant neoplasm of epithelial origin. Carcinomas account for 80 to 90 percent of all cancer cases and several examples have been successfully treated with ADCs. Abundant TROP-2 expression has been described for many carcinoma subtypes.

Previous wording

The IND for BHV-1510 was approved by the FDA in January 2024. The First-in Human, Phase 1/2 trial evaluating BHV-1510 in patients with advanced solid tumors commenced in the second quarter of 2024. This trial consists of two parts; Phase 1 dose escalation and Phase 2 dose expansion, in patients with advanced incurable cancer that have progressed on or are intolerant to standard therapy. The primary objective of Phase 1 is safety, 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. Patients are expected to be dosed in escalating cohorts, with dosing regimens administered intravenously every three weeks. The Phase 2 dose expansion part of the study will consist of non-randomized efficacy finding expansion cohorts, defined by specific tumor types that will be treated at the RDE to estimate the anti-tumor activity of BHV-1510. Up to approximately 170 subjects are planned to be evaluated.

Current wording

The IND for BHV-1510 was approved by the FDA in January 2024. The First-in Human, Phase 1/2 trial evaluating BHV-1510 in patients with advanced solid tumors commenced in the second quarter of 2024. This trial consists of two parts; Phase 1 dose escalation and Phase 2 dose expansion, in patients with advanced incurable cancer that have progressed on or are intolerant to standard therapy. The trial will also evaluate BHV-1510 in combination with the anti-PD1 cemiplimab. The primary objective of Phase 1 is safety, 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. Patients are expected to be dosed in escalating cohorts, with dosing regimens administered intravenously every two or three weeks. The Phase 2 dose expansion part of the study will consist of non-randomized efficacy finding expansion cohorts, defined by specific tumor types that will be treated at the RDE to estimate the anti-tumor activity of BHV-1510. Up to approximately 220 subjects are planned to be evaluated.

Previous wording

In consideration of the revisions to the success-based payment and royalty payment obligations, we agreed to issue to Knopp 1,872,874 Biohaven Shares, valued at approximately $75 million, through a private placement within 60 days of the date of execution of the Knopp Amendment (the “2024 Additional Consideration”) and additional Biohaven Shares with an approximate value of $75 million within 60 days of the first anniversary of execution of the Knopp Amendment (the “2025 Additional Consideration”). We have also given Knopp the option to request a one-time cash true-up payment from us in December 2024 in the event that Knopp continues to hold the Biohaven Shares representing the 2024 Additional Consideration and the value of such shares has declined, and a one-time cash true-up payment from us in December 2025 in the event that Knopp continues to hold the Biohaven Shares representing the 2025 Additional Consideration and the value of such shares has declined, in each case, subject

Current wording

In consideration of the revisions to the success-based payment and royalty payment obligations, we agreed to issue to Knopp 1,872,874 Biohaven Shares, valued at approximately $75 million, through a private placement within 60 days of the date of execution of the Knopp Amendment (the “2024 Additional Consideration”) and additional Biohaven Shares with an approximate value of $75 million within 60 days of the first anniversary of execution of the Knopp Amendment (the “2025 Additional Consideration”). We also gave Knopp the option to request a one-time cash true-up payment from us in December 2024 in the event that Knopp continues to hold the Biohaven Shares representing the 2024 Additional Consideration and the value of such shares has declined, and a one-time cash true-up payment from us in December 2025 in the event that Knopp continues to hold the Biohaven Shares representing the 2025 Additional Consideration and the value of such shares has declined, in each case, subject to certain conditions. In May 2024, we issued the 2024 Additional Consideration at an approximate value of $66.0 million.

Previous wording

We anticipate that our general and administrative expenses, including payroll and related expenses, will remain significant in the future as we continue to support our research and development activities and prepare for potential commercialization of our product candidates, if successfully developed and approved. We also anticipate increased expenses associated with general operations, including costs related to accounting and legal services, director and officer insurance premiums, facilities and other corporate infrastructure, office-related costs, such as information technology costs, and certain costs to establish ourself as a standalone public company, as well as ongoing additional costs associated with operating as an independent, publicly traded company.

Current wording

candidates, if successfully developed and approved. We also anticipate increased expenses associated with general operations, including costs related to accounting and legal services, director and officer insurance premiums, facilities and other corporate infrastructure, and office-related costs, such as information technology costs, as well as ongoing additional costs associated with operating as an independent, publicly traded company.

Previous wording

current laws of the BVI, the Company and all dividends, interest, rents, royalties, compensation and other amounts paid by the Company to persons who are not resident in the BVI and any capital gains realized with respect to any shares, debt obligations, or other securities of the Company by persons who are not resident in the BVI are exempt from all provisions of the Income Tax Ordinance in the BVI.

Current wording

As a company incorporated in the BVI, we are principally subject to taxation in the BVI. Under the current laws of the BVI, the Company and all dividends, interest, rents, royalties, compensation and other amounts paid by the Company to persons who are not resident in the BVI and any capital gains realized with respect to any shares, debt obligations, or other securities of the Company by persons who are not resident in the BVI are exempt from all provisions of the Income Tax Ordinance in the BVI.

Previous wording

We have historically outsourced all of the research and clinical development for our programs under a master services agreement with Biohaven Pharmaceuticals, Inc. ("BPI"). As a result of providing services under this agreement, BPI was profitable during the three and six months ended June 30, 2024 and 2023. A similar arrangement is also in place for our subsidiary, Biohaven Biosciences Ireland Limited ("BBIL") also operates under a similar arrangement. Both Companies are subject to taxation in the US and Ireland, respectively. As such, in each reporting period, the tax provision includes the effects of the results of operations of BPI and BBIL.

Current wording

We have historically outsourced all of the research and clinical development for our programs under a master services agreement with Biohaven Pharmaceuticals, Inc. ("BPI"). As a result of providing services under this agreement, BPI was profitable during the three and nine months ended September 30, 2024 and 2023. A similar arrangement is also in place for our subsidiary, Biohaven Biosciences Ireland Limited ("BBIL") also operates under a similar arrangement. Both Companies are subject to taxation in the US and Ireland, respectively. As such, in each reporting period, the tax provision includes the effects of the results of operations of BPI and BBIL.

Previous wording

General and administrative expenses were $19.0 million for the three months ended June 30, 2024, compared to $14.5 million for the three months ended June 30, 2023. The increase of $4.4 million was primarily due to increased non-cash share-based compensation expense. Non-cash share-based compensation expense was $5.2 million for the three months ended June 30, 2024, an increase of $2.9 million as compared to the same period in 2023. Non-cash share-based compensation expense was higher in 2024 primarily due to our annual equity incentive awards granted in the fourth quarter of 2023 and the first quarter of 2024.

Current wording

General and administrative expenses were $20.6 million for the three months ended September 30, 2024, compared to $15.0 million for the three months ended September 30, 2023. The increase of $5.5 million was partly due to increased non-cash share-based compensation expense, which was $5.0 million for the three months ended September 30, 2024, an increase of $2.7 million as compared to the same period in 2023. Non-cash share-based compensation expense was higher in 2024 primarily due to our annual equity incentive awards granted in the fourth quarter of 2023 and the first quarter of 2024.

Previous wording

Other income, net was a net income of $14.2 million for the three months ended June 30, 2024, compared to $5.8 million for the three months ended June 30, 2023. The increase was primarily due to a $9.2 million gain recorded upon settlement of our forward contract liability for the 2024 Additional Consideration issued under the Knopp Amendment, and increased investment income. This was partially offset by a decrease in other income recognized during the three months ended June 30, 2024 as compared to the same period in 2023 related to the Transition Services Agreement entered into with the Former Parent. See Note 4, "Fair Value of Financial Assets and Liabilities" to the accompanying condensed consolidated financial statements included in this Form 10-Q for discussion of the forward contract and derivative liabilities recorded in connection with the Knopp Amendment.

Current wording

Other income, net was a net income of $17.8 million for the three months ended September 30, 2024, compared to $4.7 million for the three months ended September 30, 2023. The increase was primarily due to non-cash $12.1 million related to the changes in the fair value of our forward contract and derivative liabilities recorded in connection with the Knopp Amendment as well as increased investment income. See Note 4, "Fair Value of Financial Assets and Liabilities" and Note 10, "License, Acquisitions and Other Agreements"to the accompanying condensed consolidated financial statements included in this Form 10-Q for discussion of the forward contract and derivative liabilities recorded in connection with the Knopp Amendment.

Previous wording

a provision for income taxes of $2.2 million for the three months ended June 30, 2023. The decrease in income tax expense for the three months ended June 30, 2024 as compared to 2023 was primarily attributable to our adoption of the guidance contained in a Notice of Proposed Rule Making issued during the third quarter of 2023 by the United States Internal Revenue Service ("the Notice"). See further discussion of the Notice in Note 12, "Income Taxes" to the condensed consolidated financial statements included in this Form 10-Q.

Current wording

We recorded an income tax benefit of $0.1 million for the three months ended September 30, 2024, compared to a benefit for income taxes of $3.3 million for the three months ended September 30, 2023. The change in income tax expense for the three months ended September 30, 2024 as compared to 2023 was primarily attributable to our adoption of the guidance contained in a Notice of Proposed Rule Making issued during the third quarter of 2023 by the United States Internal Revenue Service ("the Notice"). See further discussion of the Notice in Note 12, "Income Taxes" to the condensed consolidated financial statements included in this Form 10-Q.

Previous wording

The following tables summarize our results of operations for the six months ended June 30, 2024 and 2023:

Current wording

The following tables summarize our results of operations for the nine months ended September 30, 2024 and 2023:

Previous wording

R&D expenses, including non-cash share-based compensation costs, were $470.8 million for the six months ended June 30, 2024, compared to $143.0 million for the six months ended June 30, 2023. The increase of $327.8 million was primarily due to non-cash expense of $171.9 million paid to Knopp for a milestone and royalty buyback related to the BHV-7000 and broader Kv7 platform that was recognized during the three months ended June 30, 2024 (the buyback reduced our potential future milestone payments by $867.5 million, and replaced the scaled high single digit to low teens royalty payment obligations with a flat royalty payment in the mid-single digits for the Kv7 programs). See further discussion of the Knopp Amendment included in Note 10, "License, Acquisitions and Other Agreements" to the condensed consolidated financial statements included in this Form 10-Q. The increase in expense was also related to advancing our 6 clinical platforms including 5 phase 3 starts for BHV-7000, follow-on Kv7 assets, preclinical research programs, and increases in direct program spend for additional and advancing multiple clinical development programs in 2024, as compared to the same period in the prior year. The $22.6 million increase in expense for BHV-1510 was primarily due to the Pyramid Acquisition, which resulted in $10.9 million (non-cash) of expense recorded to R&D during the six months ended June 30, 2024, a $1.5 million milestone payment which became due during the first quarter of 2024, and a $5.7 million non-cash milestone payment which became due during the first quarter of 2024.

Current wording

R&D expenses, including non-cash share-based compensation costs, were $628.4 million for the nine months ended September 30, 2024, compared to $238.5 million for the nine months ended September 30, 2023. The increase of $389.9 million was largely due to non-cash expense of $171.9 million paid to Knopp for a milestone and royalty buyback related to the BHV-7000 and broader Kv7 platform that was recognized during the three months ended June 30, 2024 (the buyback reduced our potential future milestone payments by $867.5 million, and replaced the scaled high single digit to low teens royalty payment obligations with a flat royalty payment in the mid-single digits for the Kv7 programs). See further discussion of the Knopp Amendment included in Note 10, "License, Acquisitions and Other Agreements" to the condensed consolidated financial statements included in this Form 10-Q. The increase in expense was also related to advancing our 6 clinical platforms including 5 phase 3 starts for BHV-7000, follow-on Kv7 assets, preclinical research programs, and increases in direct program spend for additional and advancing multiple clinical development programs in 2024, as compared to the same period in the prior year. The $25.7 million increase in expense for BHV-1510 was primarily due to the Pyramid Acquisition, which resulted in $10.9 million (non-cash) of expense recorded to R&D during the nine months ended September 30, 2024, a $1.5 million milestone payment which became due during the first quarter of 2024, and a $5.7 million non-cash milestone payment which became due during the first quarter of 2024.

Previous wording

Non-cash share-based compensation expense was $28.4 million for the six months ended June 30, 2024, an increase of $23.7 million as compared to the same period in 2023. Non-cash share-based compensation expense was higher in the 2024 primarily due to our annual equity incentive awards granted in the fourth quarter of 2023 and first quarter of 2024.

Current wording

Non-cash share-based compensation expense was $35.5 million for the nine months ended September 30, 2024, an increase of $28.6 million as compared to the same period in 2023. Non-cash share-based compensation expense was higher in the 2024 primarily due to our annual equity incentive awards granted in the fourth quarter of 2023 and first quarter of 2024.

Previous wording

G&A expenses, including non-cash share-based compensation costs, were $46.2 million for the six months ended June 30, 2024, compared to $28.8 million for the six months ended June 30, 2023. The increase of $17.4 million was primarily due to increased non-cash share-based compensation expense. Non-cash share-based compensation expense was $18.7 million for the six months ended June 30, 2024, an increase of $15.0 million as compared to the same period in 2023. Non-cash share-based compensation expense was higher in 2024 primarily due to our annual equity incentive awards being granted in the fourth quarter of 2023 and the first quarter of 2024.

Current wording

G&A expenses, including non-cash share-based compensation costs, were $66.8 million for the nine months ended September 30, 2024, compared to $43.9 million for the nine months ended September 30, 2023. The increase of $22.9 million was primarily due to increased non-cash share-based compensation expense. Non-cash share-based compensation expense was $23.7 million for the nine months ended September 30, 2024, an increase of $17.7 million as compared to the same period in 2023. Non-cash share-based compensation expense was higher in 2024 primarily due to our annual equity incentive awards being granted in the fourth quarter of 2023 and the first quarter of 2024.

Previous wording

Other income, net was a net income of $18.5 million for the six months ended June 30, 2024, compared to $14.1 million for the six months ended June 30, 2023. The increase was primarily due to a $9.2 million gain recorded upon settlement of our forward contract liability for the 2024 Additional Consideration issued

Current wording

Other income, net was $36.3 million for the nine months ended September 30, 2024, compared to $18.8 million for the nine months ended September 30, 2023. The increase was primarily due to non-cash $21.2 million related to the changes in the fair value of our forward contract and derivative liabilities recorded in