- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01932502
Evaluation of Onfi Conversion Therapy Replacing Clonazepam in Patients With Medically Refractory Epilepsy
Evaluation of Onfi Conversion Therapy Replacing Clonazepam in Patients With Medically Refractory Epilepsy: Efficacy, Tolerability, Dosing Equivalence, and Retention Rate
Study Overview
Status
Conditions
Detailed Description
The study is designed to answer frequently asked questions when clinicians replace existing 1,4-benzodiazepine to Onfi, as follows:
- What should be the optimal equivalent doses for conversion?
- How quickly should it be converted?
- Would there be significant improvement of seizure control?
- Should we expect difference in tolerability? If so, what are common adverse events?
- Would the tolerance to the therapeutic effect differ with Onfi after conversion?
Study Type
Enrollment (Anticipated)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
Arizona
-
Phoenix, Arizona, United States, 85006
- Banner Health
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Subject has a confirmed diagnosis of medically refractory epilepsy with or without secondary generalization for at least 12 months prior to the initial study visit.
- Currently taking stable dosing regimen of clonazepam (0.5-4mg daily) for seizure control.
- Takes at least one additional Anti-epileptic drug besides benzodiazepine.
- Age 18-70 years, inclusive.
- In opinion of investigator, can be safely treated with Onfi.
- Minimum of 2 seizures, but no more than 24 complex partial or generalized seizures, during the 8-week baseline period prior to study entry.
- Able to communicate effectively with study personnel and considered reliable, able, willing, and cooperative with regard to complying with protocol-defined requirements, including completion of study diary.
Exclusion Criteria:
- Clinically relevant current illness or history of that may interfere with the subject's ability to complete the study as determined by the investigator.
- History of status epilepticus within 6 months prior to the initial study visit.
- History of suicidal attempts or suicidal ideation within 12 months of initial visit.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: clonazepam conversion to clobazam (Onfi)
Subject's clonazepam will be converted to clobazam (Onfi).
This is an open label study without placebo control.
|
Subject's clonazepam will be converted to the following Onfi doses per day: Clonazepam 0.5mg converted to Onfi 10mg first week, then titrated up to 40mg per day. Clonazepam 1.0-2.0mg converted to Onfi 20mg first week, then titrated up to 40mg per day. Clonazepam 2-4mg converted to Onfi 20mg first week, then titrated up to 60mg per day. Initial conversion will occur over two weeks followed by upward titration of up to 10mg increment per week toward the target dose. Down titration of up to 10mg will be allowed during the study. The following will be the initial conversion schedule from clonazepam to Onfi: Week 1: 50% reduction of clonazepam and starting dose of Onfi, replacing the reduced clonazepam dose with the conversion rate of clonazepam 0.5mg = Onfi 10mg. Week 2: Discontinuing clonazepam and increasing the dosage of Onfi by two-fold. Week 3+: Titrate the dose of Onfi up to 40mg per day as tolerated
Initial conversion will occur over two weeks followed by upward titration of up to 10mg increment per week toward the target dose.
Down titration of up to 10mg will be allowed during the study.
Other Names:
The following will be the initial conversion schedule from clonazepam to Onfi: Week 1: 50% reduction of clonazepam and starting dose of Onfi, replacing the reduced clonazepam dose with the conversion rate of clonazepam 0.5mg=Onfi 10mg.
Other Names:
Week 2: Discontinuing clonazepam and increasing the dosage of Onfi by two-fold.
Other Names:
Week 3+: Titrate the dose of Onfi up to 40mg per day as tolerated.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Efficacy
Time Frame: 28 days
|
Efficacy will be measured by percentage of mean seizure reduction averaged over 28 days.
|
28 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Tolerability
Time Frame: Weeks 6 - 52 after medication conversion
|
Retention rate, which indirectly measures the therapeutic tolerance, will be measured at 6 weeks, 12 weeks, 24 weeks, and 52 weeks.
|
Weeks 6 - 52 after medication conversion
|
Retention
Time Frame: 52 weeks
|
Retention rate of Onfi at 6-months and 12-months.
|
52 weeks
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Steve Chung, MD, Banner Health Systems
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Epilepsy
- Drug Resistant Epilepsy
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Tranquilizing Agents
- Psychotropic Drugs
- Anti-Anxiety Agents
- GABA Agents
- Anticonvulsants
- GABA-A Receptor Agonists
- GABA Agonists
- Clobazam
Other Study ID Numbers
- 13BN001
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Refractory Epilepsy
-
NaviFUS CorporationTaipei Veterans General Hospital, TaiwanCompletedDrug Resistant Epilepsy | Epilepsy, Drug Resistant | Intractable Epilepsy | Refractory Epilepsy | Drug Refractory Epilepsy | Epilepsy, Drug Refractory | Epilepsy, Intractable | Medication Resistant EpilepsyTaiwan
-
Madeline FieldsRecruitingDrug Resistant Epilepsy | Refractory Epilepsy | Medically Refractory EpilepsyUnited States
-
University of Colorado, DenverColorado Department of Public Health and EnvironmentUnknownEpilepsy, Unspecified, Refractory (Medically)United States
-
University Hospital, MontpellierRecruitingRefractory EpilepsyFrance
-
Boston Children's HospitalRecruitingEpilepsy | Epilepsy IntractableUnited States
-
Seattle Children's HospitalAadi Bioscience, Inc.CompletedEpilepsy IntractableUnited States
-
Cliniques universitaires Saint-Luc- Université...RecruitingRefractory EpilepsyBelgium
-
University Hospital, GhentUniversity GhentRecruiting
-
University Hospital, GhentResearch Foundation FlandersCompletedEpilepsyBelgium, United States
-
Wake Forest University Health SciencesTerminatedEpilepsy | Refractory EpilepsyUnited States
Clinical Trials on clobazam (Onfi)
-
Lundbeck LLCCompletedEpilepsy | Epilepsy, Generalized | SeizuresUnited States, Belarus, India, Australia, Lithuania
-
Lundbeck LLCCompletedEpilepsy | Epilepsy, Generalized | SeizuresUnited States
-
Pavel KleinH. Lundbeck A/SUnknown
-
Hugo W. Moser Research Institute at Kennedy Krieger...Completed
-
H. Lundbeck A/STerminatedDravet SyndromeUnited States, Mexico
-
H. Lundbeck A/SWithdrawnDravet SyndromeUnited States, Mexico
-
The Cooper Health SystemLundbeck LLCTerminatedEpilepsy | Epilepsia Partialis Continua | Kojewnikov's EpilepsyUnited States
-
Lundbeck LLCCompletedLennox-Gastaut Syndrome
-
Boston Children's HospitalLundbeck LLCCompletedElectrical Status Epilepticus in SleepUnited States
-
University Hospital Inselspital, BerneCompleted