- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00433667
A Study of the Efficacy and Safety of RWJ-333369 as add-on Therapy in the Treatment of Partial Onset Seizures.
June 15, 2012 updated by: SK Life Science, Inc.
Epilepsy Phase III Trial
The purpose of this study is to demonstrate that RWJ-333369 is safe and effective as add-on treatment of partial onset seizures.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
According to the World Health Organization (WHO), epilepsy afflicts more than 50 million people worldwide.
Despite the ongoing use of older antiepileptic drugs (AEDs) and the development of newer treatments that are better tolerated, approximately 30% of patients, particularly those with partial seizures, are not well controlled even on newer treatments, or experience significant side effects from treatment.
RWJ-333369 is a drug with anticonvulsant activity that is being investigated for the treatment of epilepsy.
This is a randomized (patients are assigned different treatments based on chance), double-blind study (neither the patient nor the physician knows whether drug or placebo is being taken, or at what dosage ) in males and females who have partial onset seizures that have had an inadequate response to at least one AED.
The study consists of 3 phases: pretreatment (a screening visit and a 56-day baseline period), double-blind treatment (12 weeks of treatment with either 200 mg per day of RWJ-333369, 400 mg per day of RWJ-333369, or placebo), and posttreatment (a posttreatment visit that occurs 7 to 14 days after the last dose of double-blind study drug).
The posttreatment phase is only for patients not continuing in the open-label extension study.
The open-label extension study is offered after completion of the double-blind treatment phase if the study doctor judges that the patient may benefit from continued treatment with RWJ-333369.
The open-label extension study lasts until RWJ-333369 becomes available by prescription or its development is stopped by the sponsor.
The efficacy of the RWJ-333369 will be based on a change in the frequency and severity of seizures.
Safety assessments include adverse events (side effects) reporting, collecting blood tests and Electrocardiograms and performing physical exams, including vitals signs.
The study hypothesis is that 400 mg per day of RWJ-333369 is better than placebo as add-on treatment of partial onset seizures, as measured by the percent reduction from baseline in the monthly partial onset seizure frequency.
200 mg per day RWJ-333369, 400 mg per day RWJ-333369, or placebo, given twice daily with or without food approximately 12 hours apart; study drug should be swallowed whole and not be chewed, divided, crushed, or dissolved.
Study Type
Interventional
Enrollment (Actual)
563
Phase
- Phase 3
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
16 years and older (Child, Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Male or Female, 16 year or older
- Clinical diagnosis of focal epilepsy for at least 1 year
- History of poor response to at least 1 anti-epileptic drug in the past
- Current treatment with 1 or 2 anti-epileptic drugs
- Should have at least 3 seizures per month
Exclusion Criteria:
- Generalized epilepsy
- Cannot count your seizures
- Unstable medical disease, such as a recent heart attack or uncontrolled diabetes
- Major psychiatric illness
- Recent drug or alcohol abuse
- Unable to swallow pills
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
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The primary outcome is the change in seizure frequency of all simple partial motor, complex partial, or secondarily generalized seizures from the pretreatment baseline phase compared with the double-blind treatment phase.
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Secondary Outcome Measures
Outcome Measure |
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The key secondary outcome is the change in the Seizure Severity Questionnaire score.
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Lu C, Zheng J, Cao Y, Bresnahan R, Martin-McGill KJ. Carisbamate add-on therapy for drug-resistant focal epilepsy. Cochrane Database Syst Rev. 2021 Dec 6;12(12):CD012121. doi: 10.1002/14651858.CD012121.pub2.
- Sperling MR, Greenspan A, Cramer JA, Kwan P, Kalviainen R, Halford JJ, Schmitt J, Yuen E, Cook T, Haas M, Novak G. Carisbamate as adjunctive treatment of partial onset seizures in adults in two randomized, placebo-controlled trials. Epilepsia. 2010 Mar;51(3):333-43. doi: 10.1111/j.1528-1167.2009.02318.x. Epub 2009 Oct 27.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
November 1, 2006
Primary Completion (Actual)
October 1, 2007
Study Completion (Actual)
October 1, 2007
Study Registration Dates
First Submitted
February 9, 2007
First Submitted That Met QC Criteria
February 9, 2007
First Posted (Estimate)
February 12, 2007
Study Record Updates
Last Update Posted (Estimate)
June 18, 2012
Last Update Submitted That Met QC Criteria
June 15, 2012
Last Verified
June 1, 2012
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CR010357
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.
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