Last updated: 06/09/2023 17:10:12

A Multicenter, Placebo-Controlled Parallel-Design, Phase III Evaluation of the Safety of Lamotrigine (LAMICTAL) as Add-On Therapy in Outpatients with Partial Seizures

GSK study ID
P42-16
Clinicaltrials.gov ID
Not applicable
EudraCT ID
Not applicable
EU CT Number
Not applicable
Trial status
Completed
Completed
Overview
Eligibility
Locations
Study documents
Results summary
Plain language summaries
Additional information

Trial overview

Official title: A Multicenter, Placebo-Controlled Parallel-Design, Phase III Evaluation of the Safety of Lamotrigine (LAMICTAL) as Add-On Therapy in Outpatients with Partial Seizures
Trial description: A Multicenter, Placebo-Controlled Parallel-Design, Phase III Evaluation of the Safety of Lamotrigine (LAMICTAL) as Add-On Therapy in Outpatients with Partial Seizures
Primary purpose:
Treatment
Trial design:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Allocation:
Randomized
Primary outcomes:

Weekly Seizure Frequency – All Partial Seizures Types A, B, or C

Timeframe: Up to Week 27

Weekly Seizure Frequency – Simple or Complex Seizures (Types A or B)

Timeframe: Up to Week 27

Weekly Seizure Frequency - Secondarily Generalized Seizures (Type C)

Timeframe: Up to Week 27

Investigator’s Global Evaluation – Treatment Phase (Week 24)

Timeframe: Up to Week 24

Investigator’s Global Evaluation – Follow-up Phase (Week 27)

Timeframe: Up to Week 27

safety assessment via routine monitoring of adverse experiences in participants

Timeframe: Up to Week 27

Secondary outcomes:

Mean Steady-State Plasma Concentration (Css) of LTG Obtained at a Mean Time of 8.1hr (sd = 4.5hr) After Dosing

Timeframe: At 8 hours postdose

Mean Steady-State Plasma Concentration (Trough Css) of LTG Obtained at 8 to 16hr (mean = 12.1hr; sd = 2.4hr) After Dosing

Timeframe: At 16 hours postdose

Interventions:
Drug: Lamotrigine
Drug: Placebo
Enrollment:
446
Observational study model:
Not applicable
Primary completion date:
1990-13-09
Time perspective:
Not applicable
Clinical publications:
SC Schachter, IE Leppik, F Matsuo, JA Messenheimer, E Faught, EL Moore, ME Risner. Lamotrigine: a six-month, placebo-controlled, safety and tolerance study. J. Epilepsy 1995;8:201-209.
Medical condition
Partial Epilepsy
Product
lamotrigine
Collaborators
Not applicable
Study date(s)
July 1989 to September 1990
Type
Interventional
Phase
3

Participation criteria

Sex
Female & Male
Age
18 - 65 Years
Accepts healthy volunteers
No

Trial location(s)

No location data available.

Study documents

Scientific result summary
Available language(s): English

If you wish to request for full study report, please contact - [email protected]

Results overview

Refer to study documents

Recruitment status
Completed
Actual primary completion date
1990-13-09
Actual study completion date
1990-13-09

Plain language summaries

Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.

Additional information about the trial

Additional information
Not applicable
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