A Polysomnographic Study Of Single-Dose Gabapentin In Transient Insomnia

A Randomized, Double-Blind, Single-Dose, Placebo-Controlled, Multicenter, Polysomnographic Study Of Gabapentin 250 mg And 500 mg In Transient Insomnia Induced By A Sleep Phase Advance

The purpose of this study is to assess the effect of gabapentin on polysomnographic assessments in transient insomnia induced by a sleep phase advance.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Actual)

377

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Florida
      • Miami, Florida, United States, 33143
        • Pfizer Investigational Site
    • Georgia
      • Atlanta, Georgia, United States, 30342
        • Pfizer Investigational Site
    • Kansas
      • Overland Park, Kansas, United States, 66212
        • Pfizer Investigational Site
    • Ohio
      • Cincinnati, Ohio, United States, 45227
        • Pfizer Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Aged >/= 18 years who reported occasional sleeplessness in the month prior to screening
  • Females of child-bearing potential using medically-acceptable method of birth control >/= 1 month prior to screening

Exclusion Criteria:

  • Current or recent history (within 2 years) of sleep disorder (excessive snoring, obstructive sleep apnea, chronic painful condition)
  • Currently taking or expected to take any of the following during the trial: amphetamines, benzodiazepines, cocaine, marijuana, methaqualone, methadone, opiates, propoxyphene, barbituates, and phencyclidine

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: C
Matched placebo oral capsule 30 minutes prior to bedtime
Experimental: A
Gabapentin 250 mg oral capsule 30 minutes prior to bedtime
Gabapentin 500 mg oral capsule 30 minutes prior to bedtime
Experimental: B
Gabapentin 250 mg oral capsule 30 minutes prior to bedtime
Gabapentin 500 mg oral capsule 30 minutes prior to bedtime

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Wake after sleep onset as measured by polysomnography (PSG)
Time Frame: Hour +8
Hour +8

Secondary Outcome Measures

Outcome Measure
Time Frame
Vital signs
Time Frame: Hour +8
Hour +8
Adverse events
Time Frame: Hour +13
Hour +13
Karolinska Sleep Diary-Sleep (KSD) Quality Index
Time Frame: Hour +8
Hour +8
KSD individual scores
Time Frame: Hour +8
Hour +8
PSG Latency to Persistent Sleep
Time Frame: Hour +8
Hour +8
PSG Wake Time During Sleep
Time Frame: Hour +8
Hour +8
PSG WASO
Time Frame: Hour +8
Hour +8
PSG Sleep Onset Latency
Time Frame: Hour +8
Hour +8
PSG NA
Time Frame: Hour +8
Hour +8
PSG Total wake time plus Stage 1 sleep
Time Frame: Hour +8
Hour +8
PSG TST
Time Frame: Hour +8
Hour +8
PSG Sleep Efficiency
Time Frame: Hour +8
Hour +8
PSG Percent of Stages 1, 2, 3, 4 and REM sleep
Time Frame: Hour +8
Hour +8
PSG Percent slow wave sleep (Stages 3&4 combined)
Time Frame: Hour +8
Hour +8
subjective Sleep Latency
Time Frame: Hour +8
Hour +8
subjective Number of Awakenings (NA)
Time Frame: Hour +8
Hour +8
subjective Wake After Sleep Onset (WASO)
Time Frame: Hour +8
Hour +8
subjective Total Sleep Time (TST)
Time Frame: Hour +8
Hour +8
subjective Assessment of Sleep Refreshment
Time Frame: Hour +8
Hour +8
subjective Assessment of Sleep Quality
Time Frame: Hour +8
Hour +8

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2006

Study Completion (Actual)

August 1, 2006

Study Registration Dates

First Submitted

May 6, 2008

First Submitted That Met QC Criteria

May 7, 2008

First Posted (Estimate)

May 8, 2008

Study Record Updates

Last Update Posted (Actual)

February 2, 2021

Last Update Submitted That Met QC Criteria

February 1, 2021

Last Verified

April 1, 2011

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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