Brief Summary
The purpose of this study is to determine whether BHV-7000 is effective in the treatment of idiopathic generalized epilepsy with generalized tonic-clonic seizures and includes an additional open-label extension (OLE) phase.
Brief Title
A Study to Determine if BHV-7000 is Effective and Safe in Adults With Idiopathic Generalized Epilepsy With Generalized Tonic-clonic Seizures
Categories
Central Contacts
Central Contact Role
Contact
Central Contact Phone
203-404-0410
Central Contact Email
clinicaltrials@biohavenpharma.com
Completion Date
Completion Date Type
Estimated
Conditions
Generalized Epilepsy
Eligibility Criteria
Inclusion Criteria:
* Male and Female participants 18 to 75 years of age at time of consent.
* Diagnosis of Idiopathic Generalized Epilepsy at least 6 months prior to the screening visit, defined by 2017 International League Against Epilepsy (ILAE) Classification and based on requirements of Epilepsy Adjudication criteria.
1. Subject has probable GTC seizures in the setting of IGE, meaning GTC seizures and either classic 3-4 Hz generalized spike-wave (GSW) or 4-6 Hz polyspike-wave on EEG and no focal abnormality (asymmetric spike-wave fragment is allowed) AND/OR a clear history of absence seizures or myoclonic jerks
2. Subjects with possible GTC seizures in the setting of IGE, meaning GTC and either Normal EEG OR Generalized epileptiform EEG abnormality with atypical spike-wave and no focal abnormality (asymmetric spike-wave fragment is allowed).
* Subject meets the 2009 ILAE definition of drug resistant epilepsy, failure of adequate trials of two tolerated and appropriately chosen and used ASM schedules (whether as monotherapies or in combination) to achieve sustained seizure freedom.
* Ability of subject or caregiver to keep accurate seizure diaries
* Current treatment with at least 1 to 3 ASMs as part of no more than 4 epilepsy treatments in total (e.g., each ASM is considered 1 treatment. Other epilepsy therapies including devices and diet therapy are allowed; together these other therapies count as 1 treatment).
* Accurate history of having at least 3 days with a GTC seizure evenly spread throughout the 16 weeks prior to the screening visit, such that a subject had at least 1 day with a GTC seizure during the first 8 weeks and at least 1 day with a GTC seizure during the second 8 weeks.
Exclusion Criteria:
* History of status epilepticus (convulsive status epilepticus for \> 5 minutes or focal status epilepticus with impaired conscious for \> 10 minutes) within the last 6 months prior to screening visit that is not consistent with the subject's habitual seizure.
* History of repetitive/cluster GTC seizures (where individual seizures cannot be counted) within the last 6 months prior to screening visit, or having repetitive/cluster GTC seizures count during the screening phase.
* Any condition that would interfere with and/or confound the interpretation of safety or efficacy data from the study, as judged by the Investigator
* Male and Female participants 18 to 75 years of age at time of consent.
* Diagnosis of Idiopathic Generalized Epilepsy at least 6 months prior to the screening visit, defined by 2017 International League Against Epilepsy (ILAE) Classification and based on requirements of Epilepsy Adjudication criteria.
1. Subject has probable GTC seizures in the setting of IGE, meaning GTC seizures and either classic 3-4 Hz generalized spike-wave (GSW) or 4-6 Hz polyspike-wave on EEG and no focal abnormality (asymmetric spike-wave fragment is allowed) AND/OR a clear history of absence seizures or myoclonic jerks
2. Subjects with possible GTC seizures in the setting of IGE, meaning GTC and either Normal EEG OR Generalized epileptiform EEG abnormality with atypical spike-wave and no focal abnormality (asymmetric spike-wave fragment is allowed).
* Subject meets the 2009 ILAE definition of drug resistant epilepsy, failure of adequate trials of two tolerated and appropriately chosen and used ASM schedules (whether as monotherapies or in combination) to achieve sustained seizure freedom.
* Ability of subject or caregiver to keep accurate seizure diaries
* Current treatment with at least 1 to 3 ASMs as part of no more than 4 epilepsy treatments in total (e.g., each ASM is considered 1 treatment. Other epilepsy therapies including devices and diet therapy are allowed; together these other therapies count as 1 treatment).
* Accurate history of having at least 3 days with a GTC seizure evenly spread throughout the 16 weeks prior to the screening visit, such that a subject had at least 1 day with a GTC seizure during the first 8 weeks and at least 1 day with a GTC seizure during the second 8 weeks.
Exclusion Criteria:
* History of status epilepticus (convulsive status epilepticus for \> 5 minutes or focal status epilepticus with impaired conscious for \> 10 minutes) within the last 6 months prior to screening visit that is not consistent with the subject's habitual seizure.
* History of repetitive/cluster GTC seizures (where individual seizures cannot be counted) within the last 6 months prior to screening visit, or having repetitive/cluster GTC seizures count during the screening phase.
* Any condition that would interfere with and/or confound the interpretation of safety or efficacy data from the study, as judged by the Investigator
Inclusion Criteria
Inclusion Criteria:
* Male and Female participants 18 to 75 years of age at time of consent.
* Diagnosis of Idiopathic Generalized Epilepsy at least 6 months prior to the screening visit, defined by 2017 International League Against Epilepsy (ILAE) Classification and based on requirements of Epilepsy Adjudication criteria.
1. Subject has probable GTC seizures in the setting of IGE, meaning GTC seizures and either classic 3-4 Hz generalized spike-wave (GSW) or 4-6 Hz polyspike-wave on EEG and no focal abnormality (asymmetric spike-wave fragment is allowed) AND/OR a clear history of absence seizures or myoclonic jerks
2. Subjects with possible GTC seizures in the setting of IGE, meaning GTC and either Normal EEG OR Generalized epileptiform EEG abnormality with atypical spike-wave and no focal abnormality (asymmetric spike-wave fragment is allowed).
* Subject meets the 2009 ILAE definition of drug resistant epilepsy, failure of adequate trials of two tolerated and appropriately chosen and used ASM schedules (whether as monotherapies or in combination) to achieve sustained seizure freedom.
* Ability of subject or caregiver to keep accurate seizure diaries
* Current treatment with at least 1 to 3 ASMs as part of no more than 4 epilepsy treatments in total (e.g., each ASM is considered 1 treatment. Other epilepsy therapies including devices and diet therapy are allowed; together these other therapies count as 1 treatment).
* Accurate history of having at least 3 days with a GTC seizure evenly spread throughout the 16 weeks prior to the screening visit, such that a subject had at least 1 day with a GTC seizure during the first 8 weeks and at least 1 day with a GTC seizure during the second 8 weeks.
* Male and Female participants 18 to 75 years of age at time of consent.
* Diagnosis of Idiopathic Generalized Epilepsy at least 6 months prior to the screening visit, defined by 2017 International League Against Epilepsy (ILAE) Classification and based on requirements of Epilepsy Adjudication criteria.
1. Subject has probable GTC seizures in the setting of IGE, meaning GTC seizures and either classic 3-4 Hz generalized spike-wave (GSW) or 4-6 Hz polyspike-wave on EEG and no focal abnormality (asymmetric spike-wave fragment is allowed) AND/OR a clear history of absence seizures or myoclonic jerks
2. Subjects with possible GTC seizures in the setting of IGE, meaning GTC and either Normal EEG OR Generalized epileptiform EEG abnormality with atypical spike-wave and no focal abnormality (asymmetric spike-wave fragment is allowed).
* Subject meets the 2009 ILAE definition of drug resistant epilepsy, failure of adequate trials of two tolerated and appropriately chosen and used ASM schedules (whether as monotherapies or in combination) to achieve sustained seizure freedom.
* Ability of subject or caregiver to keep accurate seizure diaries
* Current treatment with at least 1 to 3 ASMs as part of no more than 4 epilepsy treatments in total (e.g., each ASM is considered 1 treatment. Other epilepsy therapies including devices and diet therapy are allowed; together these other therapies count as 1 treatment).
* Accurate history of having at least 3 days with a GTC seizure evenly spread throughout the 16 weeks prior to the screening visit, such that a subject had at least 1 day with a GTC seizure during the first 8 weeks and at least 1 day with a GTC seizure during the second 8 weeks.
Gender
All
Gender Based
false
Keywords
Idiopathic Generalized Epilepsy
Generalized
Epilepsy
tonic-clonic
generalized tonic-clonic
tonic
clonic
seizure
refractory epilepsy
generalized tonic-clonic alone
juvenile myoclonic epilepsy
juvenile absence epilepsy
Healthy Volunteers
No
Last Update Post Date
Last Update Post Date Type
Actual
Last Update Submit Date
Maximum Age
75 Years
Minimum Age
18 Years
NCT Id
NCT06425159
Org Class
Industry
Org Full Name
Biohaven Pharmaceuticals, Inc.
Org Study Id
BHV7000-304
Overall Status
Recruiting
Phases
Phase 2
Phase 3
Primary Completion Date
Primary Completion Date Type
Estimated
Official Title
A Phase 2/3 Multicenter, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy, Safety, and Tolerability of BHV-7000 as Adjunctive Therapy in Subjects With Idiopathic Generalized Epilepsy With Generalized Tonic-clonic Seizures, With Open-label Extension
Primary Outcomes
Outcome Description
To compare the efficacy of BHV-7000 to placebo as adjunctive therapy for subjects with idiopathic generalized epilepsy with generalized tonic-clonic (GTC) seizures as measured by the time to the second day with a GTC seizure during the double-blind phase
Outcome Measure
Time to the Second Day with a Generalized Tonic Clonic (GTC) Seizure During the 24- week Double-blind Treatment Period
Outcome Time Frame
Baseline to Week 24 of Double-Blind Treatment Period
Secondary Ids
Secondary Id
2023-508812-45-00
Secondary Outcomes
Outcome Description
To compare the efficacy of BHV-7000 to placebo in terms of the proportion of subjects that are free of GTC seizures as measured by the proportion of subjects with GTC seizure freedom during the 24-week DBP, estimated using Kaplan- Meier methods.
Outcome Time Frame
Baseline to Week 24 of Double-Blind Treatment Period
Outcome Measure
Percentage of Participants with freedom of GTC seizures during DBT Phase
Outcome Description
To assess the safety and tolerability of BHV-7000 as measured by the number of unique subjects with deaths, SAEs, AEs leading to discontinuation, and moderate and severe AEs
Outcome Time Frame
Baseline to Week 24 of Double-Blind Treatment Period
Outcome Measure
Number of Participants With Deaths, Serious AEs (SAEs), AEs Leading to Study Drug Discontinuation, and moderate or severe AEs
Outcome Description
To assess the safety and tolerability of BHV-7000 as measured by the number of unique subjects with grade 3 and grade 4 laboratory abnormalities.
Outcome Time Frame
Baseline to Week 24 of Double-Blind Treatment Period
Outcome Measure
Number of Participants With Clinically Significant Laboratory Abnormalities
Start Date
Start Date Type
Actual
Status Verified Date
First Post Date
First Post Date Type
Actual
First Submit Date
First Submit QC Date
Std Ages
Adult
Older Adult
Maximum Age Number (converted to Years and rounded down)
75
Minimum Age Number (converted to Years and rounded down)
18
Investigators
Investigator Type
Principal Investigator
Investigator Name
Jonathan Gursky
Investigator Email
jgursky@montefiore.org