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Updated June 2026 · ClinicalTrials.gov

RECRUITINGPhase 2 / Phase 3INTERVENTIONAL

Study to Determine if BHV-7000 is Effective and Safe in Adults With Refractory Focal Onset Epilepsy

A Phase 2/3 Multicenter, Randomization, Double-Blind, Placebo-Controlled, Study to Evaluate the Efficacy, Safety and Tolerability of BHV-7000 in Subjects With Refractory Focal Onset Epilepsy

Study to Determine if BHV-7000 is Effective and Safe in Adults With Refractory Focal Onset Epilepsy (NCT06309966) is a Phase 2 / Phase 3 interventional studying Focal Epilepsy, sponsored by Biohaven Therapeutics Ltd.. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

The purpose of this study is to determine whether BHV-7000 is effective in the treatment of refractory focal epilepsy.

What Stage of Research Is This?

Phase 2 trials evaluate whether a treatment actually works against Focal Epilepsy and continue monitoring side effects. Phase 2 enrolls larger groups (typically 100–300 patients) and produces the first real efficacy signal. A successful Phase 2 readout is what unlocks the much larger Phase 3 confirmatory trials needed for FDA approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

A target enrollment of 390 participants makes this a sizable late-stage trial. Studies in this range typically have enough power to detect clinically meaningful differences from a comparator and to characterize less-common side effects.

Who May Be Eligible (Plain English)

Key Who May Qualify: 1. Male and Female participants 18 to 75 years of age at time of consent. 2. Diagnosis of Focal Onset Epilepsy at least 1 year prior to screening visit defined by 2017 International League Against Epilepsy (ILAE) Classification and based on requirements of Epilepsy Adjudication criteria. a. Focal seizures i. Focal aware seizures with clinically observable signs and/or symptoms ii. Focal impaired awareness seizures with clinically observable signs and/or symptoms iii. Focal to bilateral tonic-clonic seizures 3. Subject meets the 2009 ILAE definition of drug resistant epilepsy, failure of adequate trials of two tolerated and appropriately chosen and used anti-seizure medication (ASM) schedules (whether as monotherapies or in combination) to achieve sustained seizure freedom. 4. Ability to keep accurate seizure diaries 5. Current treatment with at least 1 and up to 3 ASMs and 4 epilepsy treatments in total Key Who Should NOT Join This Trial: 1. History of status epilepticus (convulsive status epilepticus for \> 5 minutes or focal status epilepticus with impaired consciousness for \> 10 minutes) within the last 6 months prior to screening visit that is not consistent with the subject's habitual seizure. 2. History of repetitive/cluster seizures (where individual seizures cannot be counted) within the last 6 months prior to screening visit and during observation phase. 3. Resection neurosurgery for seizures \<4 months prior to the screening visit. 4. Radiosurgery performed \<2 years prior to the screening visit. 5. Subjects with only focal aware nonmotor seizures which involve subjective sensory or psychic phenomena only, without impairment of consciousness or awareness (formally called simple partial seizures), with or without ictal EEG correlation with clinical symptoms. ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Key Inclusion Criteria: 1. Male and Female participants 18 to 75 years of age at time of consent. 2. Diagnosis of Focal Onset Epilepsy at least 1 year prior to screening visit defined by 2017 International League Against Epilepsy (ILAE) Classification and based on requirements of Epilepsy Adjudication criteria. a. Focal seizures i. Focal aware seizures with clinically observable signs and/or symptoms ii. Focal impaired awareness seizures with clinically observable signs and/or symptoms iii. Focal to bilateral tonic-clonic seizures 3. Subject meets the 2009 ILAE definition of drug resistant epilepsy, failure of adequate trials of two tolerated and appropriately chosen and used anti-seizure medication (ASM) schedules (whether as monotherapies or in combination) to achieve sustained seizure freedom. 4. Ability to keep accurate seizure diaries 5. Current treatment with at least 1 and up to 3 ASMs and 4 epilepsy treatments in total Key Exclusion Criteria: 1. History of status epilepticus (convulsive status epilepticus for \> 5 minutes or focal status epilepticus with impaired consciousness for \> 10 minutes) within the last 6 months prior to screening visit that is not consistent with the subject's habitual seizure. 2. History of repetitive/cluster seizures (where individual seizures cannot be counted) within the last 6 months prior to screening visit and during observation phase. 3. Resection neurosurgery for seizures \<4 months prior to the screening visit. 4. Radiosurgery performed \<2 years prior to the screening visit. 5. Subjects with only focal aware nonmotor seizures which involve subjective sensory or psychic phenomena only, without impairment of consciousness or awareness (formally called simple partial seizures), with or without ictal EEG correlation with clinical symptoms. 6. Any condition that would interfere with the subject's ability to comply with study instructions, place the subject at unacceptable risk, and/or confound the interpretation of safety or efficacy data from the study, as judged by the Investigator

Treatments Being Tested

DRUG

BHV-7000

BHV-7000 50 mg. Participants will take blinded investigational product (IP) once daily

DRUG

BHV-7000

BHV-7000 75 mg. Participants will take blinded investigational product (IP) once daily

DRUG

Placebo

Matching placebo taken once daily

Locations (20)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Accel Research
Birmingham, Alabama, United States
Onyx Clinical Trials
Peoria, Arizona, United States
Xenoscience, Inc.
Phoenix, Arizona, United States
University of Arizona / Banner University Medical Center Phoenix
Phoenix, Arizona, United States
ARENSIA Exploratory Medicine
Phoenix, Arizona, United States
Clinical Trials, Inc.
Little Rock, Arkansas, United States
Amicis Research Center
Lancaster, California, United States
Memorialcare Miller Children's & Women's Hospital Long Beach
Long Beach, California, United States
Tri Valley Neurology Medical Associates, Inc.
Mission Hills, California, United States
Stanford University
Palo Alto, California, United States
Profound Research LLC
Poway, California, United States
Kaiser Permanente
Aurora, Colorado, United States
UConn Health
Farmington, Connecticut, United States
Children's National Medical Center
Washington D.C., District of Columbia, United States
EZR Research, LLC
Boca Raton, Florida, United States
Nova Clinical Research, LLC
Bradenton, Florida, United States
Las Mercedes Medical Research
Hialeah, Florida, United States
Coral Clinic Research
Homestead, Florida, United States
Dm Healthworks
Kissimmee, Florida, United States
Y&L Advance Health Care, Inc d/b/a Elite Clinical Research
Miami, Florida, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06309966), the sponsor (Biohaven Therapeutics Ltd.), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06309966 clinical trial studying?

The purpose of this study is to determine whether BHV-7000 is effective in the treatment of refractory focal epilepsy. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06309966?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06309966?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06309966. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06309966. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-06-26 · Data from ClinicalTrials.gov.