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EpilepsyPhase 2NCT00210522

An Open-Label Extension Study of the Effectiveness and Safety of the Investigational Compound RWJ-333369 in Patients With Epilepsy

A Phase 2 study testing RWJ 333369 in people with Epilepsy and Epilepsies, Partial, run by SK Life Science, Inc..

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the effectiveness and safety of the novel compound RWJ-333369 in reducing the frequency of seizures in patients with epilepsy. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Epilepsy, Epilepsies, Partial
What is being tested?
RWJ 333369
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
421 participants
Where
No sites listed yet
Study dates
May 2005to Jun 2010
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients must complete Visit 8 (Day 112) of the double-blind treatment phase of Study EPY-2003 to be eligible for entry into the open-label treatment phase of Study EPY-2006.

Who cannot join

  • Patients who have seizures that cannot be quantitated accurately
  • Patients with a history of nonepileptic seizures, serious systemic disease, progressive neurologic disorder, a major psychiatric disorder, status epilepticus in the past 3 months, vagal nerve stimulation discontinuation within the past 3 months
  • Patients with a history of drug or alcohol abuse within the past 2 years
  • Patients currently taking felbamate, vigabatrin, or tricyclic antidepressants
  • and patients who are pregnant or nursing.

About this study

Official title: A Double-Blind, Placebo-Controlled, Dose-Ranging Study to Evaluate the Efficacy, Safety, and Tolerability of RWJ-333369 as Adjunctive Therapy in Subjects With Refractory Partial Seizures (Protocol 333369-EPY-2003 [Double-blind] and Protocol 333369-EPY-2006 [Open-label Extension])

The purpose of this study is to evaluate the effectiveness and safety of the novel compound RWJ-333369 in reducing the frequency of seizures in patients with epilepsy.

Read the detailed description

333369EPY2006 is the open-label extension study that follows the double-blind study 333369EPY2003. In an open label study such as 333369EPY2006, both the physician and the patient know the name of the assigned study medication. In a double blind study such as 333369EPY2003, neither the physician nor the patient knows the name of the assigned study medication. Patients who complete the double-blind treatment phase of study 333369EPY2003 will be eligible to enter the open-label extension study during which patients will transition through a blinded period to an open-label period with carisbamate (also referred to as RWJ-333369). RWJ-333369 is a new chemical compound with anticonvulsant activity that is currently under investigation as a treatment for epilepsy. Patients electing to enter the open-label extension phase will be supplied with both open-label carisbamate (RWJ-333369) and blinded study medication for the transition phase. During this transition phase (approximately 3 weeks in length), the patient's dose of double-blind study drug will be gradually reduced and stopped and treatment with open-label RWJ-333369 will be started. Throughout the remainder of the open label extension phase, investigators will be allowed to make further adjustments of the dosage and schedule of carisbamate, including independent adjustment of the morning and evening doses, but a dosage of 1,200 mg/day may not be exceeded and increases in dosage must be in increments of no more than 200 mg/day. After 12 months of participation in the open-label extension study, patients who, in the judgment of the investigator, continue to benefit from treatment with RWJ-333369 may continue to receive the drug with follow up clinic visits every 3 months until RWJ 333369 is available by prescription or the program is terminated by the sponsor. RWJ-333369 (100, 300, 800, or 1,600 milligrams per day) administered orally in 2 equally divided doses for up to 16 weeks of double-blind treatment followed by the option to continue RWJ-333369 treatment in an open-label study for at least 1 year, then until drug is available or production ceases.

Being tested
RWJ 333369
Keywords
RWJ-333369, Anticonvulsants, Epilepsy, Refractory partial epilepsy, Seizure disorder, Antiepileptic drugs
Medical subject headings
Epilepsy, Epilepsies, Partial

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • RWJ 333369Drug

    Open-Label Extension: One 200 mg to 600mg tablet taken twice daily (up to a maximum of 1200mg/day) up to 1 year or the time that RWJ-333369 is available by prescription or the study is terminated by Sponsor.

Study groups in NCT00210522
Study groupRoleWhat they receive
001ExperimentalRWJ 333369 Open-Label Extension: One 200 mg to 600mg tablet taken twice daily (up to a maximum of 1200mg/day) up to 1 year or the time that RWJ-333369 is available by prescription or the study is terminated by Sponsor.
Receives: Drug: RWJ 333369

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Adverse events

    Measured: Up to 1 year or until carisbamate is available by prescription or the study is terminated by the sponsor

  2. Clinical laboratory test values

    Measured: Up to 1 year or until carisbamate is available by prescription or the study is terminated by the sponsor

  3. 12-lead ECG recordings

    Measured: Up to 1 year or until carisbamate is available by prescription or the study is terminated by the sponsor

  4. Vital sign measurements

    Measured: Up to 1 year or until carisbamate is available by prescription or the study is terminated by the sponsor

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Sep 2005 (estimated)
  2. Study startMay 2005
  3. Primary completionJun 2010
  4. Study completionJun 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
421 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00210522
Sponsor's protocol ID
CR002191
Status last verified
Jan 2013
First submitted
13 Sep 2005
Last updated
24 Jan 2013
Results posted
No

Publications

  • Faught E, Holmes GL, Rosenfeld WE, Novak G, Neto W, Greenspan A, Schmitt J, Yuen E, Reines S, Haas M. Randomized, controlled, dose-ranging trial of carisbamate for partial-onset seizures. Neurology. 2008 Nov 11;71(20):1586-93. doi: 10.1212/01.wnl.0000334751.89859.7f.

    PubMed 19001248

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing RWJ 333369 in people with Epilepsy and Epilepsies, Partial, run by SK Life Science, Inc..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Jan 2013. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Adverse events (time frame: Up to 1 year or until carisbamate is available by prescription or the study is terminated by the sponsor). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00210522, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jan 2013.

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