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Drug Drug Interaction Study With Gabapentin Enacarbil and Morphine

Restless Legs Syndrome Clinical Trial

Official title:
A Double-Blind, 3-Part Crossover Study to Assess the Pharmacokinetics and Tolerability of Single Doses of Gabapentin Enacarbil and Morphine Administered Alone and in Combination in Healthy Subjects

Clinical Trial Summary

This double-blind study will evaluate the pharmacokinetics of a single dose of morphine or gabapentin derived from gabapentin enacarbil (GEn) after administration of morphine and GEn alone and in combination as well as the tolerability of morphine administered with GEn. The dose of GEn will be 600 mg administered with food. Morphine/morphine placebo will be administered 2 hours prior to GEn/GEn placebo in the fasted state. A 60 mg dose of a controlled release formulation of morphine will be given. Blood samples for evaluation of gabapentin, morphine and morphine-6-glucuronide will be collected. The pharmacodynamic effect of co-administering both treatments will be assessed using visual analog scales for somnolence/sedation, dizziness and nausea.

Clinical Trial Description

This double-blind study will evaluate the pharmacokinetics of a single dose of morphine or gabapentin derived from gabapentin enacarbil (GEn) after administration of morphine and GEn alone and in combination as well as the tolerability of morphine administered with GEn. The dose of GEn will be 600 mg administered with food. Morphine/morphine placebo will be administered 2 hours prior to GEn/GEn placebo in the fasted state. A 60 mg dose of a controlled release formulation of morphine will be given. Blood samples for evaluation of gabapentin, morphine and morphine-6-glucuronide will be collected. The pharmacodynamic effect of co-administering both treatments will be assessed using visual analog scales for somnolence/sedation, dizziness and nausea. ;

Study Design

Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01476124
Study type Interventional
Source XenoPort, Inc.
Contact
Status Completed
Phase Phase 1
Start date August 2011
Completion date October 2011
View Details
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