Dose-Response and Pharmacokinetics of Gabapentin Enacarbil (GEn [XP13512 / GSK1838262]) in Restless Legs Syndrome — XP081  

Restless Legs Syndrome Clinical Trial

Official title: A Randomized, Double-Blind, Placebo-Controlled, Dose-Response Study to Assess the Efficacy, Safety, and Pharmacokinetics of XP13512 (GSK1838262) in Patients With Restless Legs Syndrome

Status Completed

Clinical Trial Summary

The objective of the study was to generate the data necessary to determine the gabapentin exposure produced by 4 dose levels of GEn (600 mg, 1200 mg, 1800 mg, and 2400 mg) or placebo, and the corresponding relief of symptoms in subjects with Restless Legs Syndrome (RLS).

Clinical Trial Description

This was a multicenter, randomized, double blind, placebo controlled, parallel group study, comparing 4 doses of GEn (XP13512) with placebo given once daily to subjects with RLS. Eligible subjects were randomized in equal numbers into 1 of 5 treatment groups (GEn 600 mg, 1200 mg, 1800 mg, or 2400 mg or placebo) for 12 weeks of treatment. Data from this study will be utilized as part of a larger pharmacokinetic (PK) pharmacodynamic (PD) analysis of data from several studies (XP084/RXP111495) that are part of the GEn RLS clinical development program. Safety and tolerability were also assessed. ;

Study Design

Allocation: Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Psychomotor Agitation
• Restless Legs Syndrome
• Syndrome

• NCT number: NCT01332305
• Study type: Interventional
• Source: XenoPort, Inc.
• Status: Completed
• Phase: Phase 2
• Start date: January 2007
• Completion date: January 2008