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Completed Phase 3 Interventional Results available

Study Evaluating LAMICTAL Extended-Release Therapy Added To Current Seizure Treatments In Patients With Primary Generalized Tonic-Clonic Seizures (PGTC) Seizures

ClinicalTrials.gov ID: NCT00104416

Public ClinicalTrials.gov record NCT00104416. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 22, 2026, 12:01 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multicenter, Double-blind, Randomized, Parallel-group Evaluation of LAMICTAL Extended-Release Adjunctive Therapy in Patients With Primary Generalized Tonic-Clonic Seizures

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study is being conducted to compare the efficacy and safety of LAMICTAL (lamotrigine) extended-release with placebo in the treatment of Primary Generalized Tonic-Clonic (PGTC) seizures. LAMICTAL extended-release is an investigational drug. Placebo tablets look like LAMICTAL extended-release tablets but do not contain active medication. In this study, LAMICTAL extended-release or placebo tablets will be added to current seizure treatments.

Study identification

NCT ID
NCT00104416
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
GlaxoSmithKline
Industry
Enrollment
153 participants

Conditions and interventions

Eligibility (public fields only)

Age range
13 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 2004 (Type not available)
Primary completion
Jul 2008 (Actual)
Completion
Jul 2008 (Actual)
Last update posted
Jan 2, 2017

2004 – 2008

United States locations

U.S. sites
64
U.S. states
29
U.S. cities
59
Facility City State ZIP Site status
GSK Investigational Site Anniston Alabama 36207 —
GSK Investigational Site Birmingham Alabama 35294-0021 —
GSK Investigational Site Northport Alabama 35476 —
GSK Investigational Site Tuscaloosa Alabama 35406 —
GSK Investigational Site Phoenix Arizona 85006 —
GSK Investigational Site Phoenix Arizona 85013 —
GSK Investigational Site Scottsdale Arizona 85259 —
GSK Investigational Site Tucson Arizona 85712 —
GSK Investigational Site Little Rock Arkansas 72205 —
GSK Investigational Site Los Angeles California 90033 —
GSK Investigational Site Los Angeles California 90073 —
GSK Investigational Site Newport Beach California 92660 —
GSK Investigational Site Santa Monica California 90404 —
GSK Investigational Site Sepuldeva California 91343 —
GSK Investigational Site Washington D.C. District of Columbia 20037 —
GSK Investigational Site Hollywood Florida 33021 —
GSK Investigational Site Maitland Florida 32751 —
GSK Investigational Site Ocala Florida 34471 —
GSK Investigational Site Atlanta Georgia 30342 —
GSK Investigational Site Augusta Georgia 30912-3200 —
GSK Investigational Site Marietta Georgia 30060 —
GSK Investigational Site Savannah Georgia 31405 —
GSK Investigational Site Suwanee Georgia 30024 —
GSK Investigational Site Chicago Illinois 60612 —
GSK Investigational Site Flossmoor Illinois 60422 —
GSK Investigational Site Springfield Illinois 62702 —
GSK Investigational Site Des Moines Iowa 50309-1426 —
GSK Investigational Site Wichita Kansas 67214 —
GSK Investigational Site Crestview Hills Kentucky 41017 —
GSK Investigational Site Louisville Kentucky 40202 —
GSK Investigational Site Lafayette Louisiana 70503 —
GSK Investigational Site Boston Massachusetts 02118 —
GSK Investigational Site Detroit Michigan 48202 —
GSK Investigational Site Grand Rapids Michigan 49525 —
GSK Investigational Site Traverse City Michigan 49684 —
GSK Investigational Site Minneapolis Minnesota 55422 —
GSK Investigational Site Minneapolis Minnesota 55455 —
GSK Investigational Site Chesterfield Missouri 63017 —
GSK Investigational Site Kansas City Missouri 64111 —
GSK Investigational Site Las Vegas Nevada 89106 —
GSK Investigational Site Edison New Jersey 08818 —
GSK Investigational Site West Orange New Jersey 07052 —
GSK Investigational Site Amherst New York 14226 —
GSK Investigational Site New York New York 10016 —
GSK Investigational Site Asheville North Carolina 28801 —
GSK Investigational Site Greenville North Carolina 27834 —
GSK Investigational Site Raleigh North Carolina 27607 —
GSK Investigational Site Columbus Ohio 43210-1250 —
GSK Investigational Site Oklahoma City Oklahoma 73104 —
GSK Investigational Site Oklahoma City Oklahoma 73112 —
GSK Investigational Site Philadelphia Pennsylvania 19107 —
GSK Investigational Site Philadelphia Pennsylvania 19140 —
GSK Investigational Site Pittsburgh Pennsylvania 15215 —
GSK Investigational Site Germantown Tennessee 38138 —
GSK Investigational Site Dallas Texas 75230 —
GSK Investigational Site Galveston Texas 77555 —
GSK Investigational Site Houston Texas 77005 —
GSK Investigational Site San Antonio Texas 78258 —
GSK Investigational Site Wichita Falls Texas 76301 —
GSK Investigational Site Salt Lake City Utah 84107 —
GSK Investigational Site Burlington Vermont 05401 —
GSK Investigational Site Richmond Virginia 23220 —
GSK Investigational Site Madison Wisconsin 53715 —
GSK Investigational Site Milwaukee Wisconsin 53215 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 82 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00104416, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 2, 2017 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00104416 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →