Ignite Creation Date:
2024-05-05 @ 12:05 PM
Last Modification Date:
2024-10-26 @ 9:20 AM
Study NCT ID:
NCT00236704
Status:
COMPLETED
Last Update Posted:
2011-06-08
First Post:
2005-10-07
Brief Title:
A Study of the Efficacy and Safety of Topiramate as Add on Treatment in Epilepsy Patients With Primary Generalized Tonic-clonic Seizures
Sponsor:
Johnson Johnson Pharmaceutical Research Development LLC
Organization:
Johnson Johnson Pharmaceutical Research Development LLC
Study Overview
Official Title:
Topiramate Clinical Trial in Primary Generalized Tonic-Clonic Seizures
Status:
COMPLETED
Status Verified Date:
2011-01
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
No
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The purpose of this study is to evaluate the effectiveness and safety of topiramate as an add-on therapy in epilepsy patients with uncontrolled primary generalized tonic-clonic seizures who are taking 1 or 2 standard antiepileptic drugs
Detailed Description:
Epilepsy is a disease characterized by seizures which are abnormal electrical discharges in the brain that temporarily disrupt normal brain function Seizures are classified as generalized involving all or most of the brain at the same time or partial onset starting in one area of the brain Generalized tonic-clonic seizures are also referred to as grand mal seizures and are common in people with generalized epilepsy in which the cause is not known In a tonic-clonic seizure the person loses consciousness the body stiffens tonic phase and then the individual falls to the ground This is followed by jerking movements in which the muscles contract and relax quickly clonic phase After a minute or two the jerking movements usually stop and the person regains consciousness Antiepileptic medications such as topiramate are selected based on a patients seizure type Topiramate is a drug that is currently widely used for the treatment of seizures in adults and pediatric patients 2 to 16 years of age This is a randomized double-blind parallel-group placebo-controlled study to evaluate the effectiveness and safety of topiramate as adjunctive therapy in patients with primary generalized tonic-clonic PGTC seizures The study is composed of two phases baseline 8 weeks and double-blind treatment 20 weeks Patients are given diaries to record information about their seizures during the phases of the study During the baseline phase the patient continues to receive a constant dosage of the 1 or 2 antiepileptic drugs they have been taking In the double-blind phase patients are randomly assigned to either topiramate or placebo The double-blind phase is divided into two periods titration in which the topiramate dose is gradually increased 8 weeks patients antiepileptic medication continues this dose remains the same and stabilization 12 weeks The dose of both topiramate and the patients antiepileptic drug remain constant during the stabilization period Based on the investigators judgment patients completing the double-blind treatment could enter a long-term extension phase of the study to continue treatment The primary assessment of effectiveness is the percent reduction in primary generalized tonic-clonic seizure rates from baseline to the double-blind phase Safety assessments include the frequency of adverse events during the study results of clinical laboratory tests hematology biochemistry and urinalysis measurements of vital signs and body weight physical examination and electrocardiogram findings plasma levels of topiramate and other study antiepileptic drugs and neurological examinations The study hypothesis is that topiramate is superior to placebo in reducing the seizure rate from baseline to the end of the double-blind phase of the study and is well tolerated Topiramate 25 mg or 100 mg tablets or placebo taken by mouth starting at a dose of 25 or 50mgday gradually increasing over 8 weeks to a maximum daily dose of 175mg to 400mg based on body weight or to a maximum tolerated dose whichever dose is less Maximum dosage continues for 12 weeks
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None