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A Study to Evaluate the Effects of GW679769 on Sleep and Cognitive Function in Subjects With Primary Insomnia

This study has been completed.
Information provided by:
GlaxoSmithKline Identifier:
First received: March 31, 2008
Last updated: May 15, 2009
Last verified: May 2009
A study to investigate the effects of GW679769 on sleep and cognition. Potential subjects participate in a clinical screening visit and a two-night PSG recording session in the sleep laboratory. Eligible subjects then participate in three separate two-night PSG sessions in which they are randomized to receive placebo or one of two doses of GW679769 60 minutes prior to bedtime, one treatment for each session in a balanced order. Each treatment session is separated by a two-week drug-free period and occur on the same day of the week. A safety follow-up visit occurs 2 weeks after the last treatment session.

Condition Intervention Phase
Insomnia Drug: GW679769 Drug: Placebo Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double-Blind
Primary Purpose: Diagnostic
Official Title: A Randomized, Double-Blind, Placebo-Controlled, Crossover Study to Evaluate the Effects of GW679769 (30mg and 90mg) on Sleep Continuity, PSG Sleep Recordings, Subjective Sleep Assessment, and Daytime Cognitive Function in Subjects With Primary Insomnia

Further study details as provided by GlaxoSmithKline:

Primary Outcome Measures:
  • Wake time after sleep onset (WASO) derived from polysomnographic (PSG) recording

Secondary Outcome Measures:
  • PSG Total Sleep Time (TST), latency to persistent sleep, and number of awakenings. Subject related TST, WASO, Sleep Onset Latency. Morning tests of alertness, memory and fine motor control. Blood levels of GW679769; 2 samples at each treatment visit.

Enrollment: 48
Study Start Date: July 2004
Study Completion Date: August 2005
Primary Completion Date: August 2005 (Final data collection date for primary outcome measure)
Intervention Details:
    Drug: GW679769 Drug: Placebo
    Other Name: GW679769

Ages Eligible for Study:   18 Years to 64 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Healthy male and female subjects with primary insomnia with normal EG may be eligible for inclusion.

Exclusion Criteria:

  • clinically significant physical or psychiatric illness or abnormal sleep patterns.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00650871

United States, California
GSK Investigational Site
San Diego, California, United States, 92123
United States, Georgia
GSK Investigational Site
Atlanta, Georgia, United States, 30342
United States, New York
GSK Investigational Site
New York, New York, United States, 10025
United States, North Carolina
GSK Investigational Site
Durham, North Carolina, United States, 27705
GSK Investigational Site
Winston-Salem, North Carolina, United States, 27157
United States, Ohio
GSK Investigational Site
Cincinnati, Ohio, United States, 45246
United States, Pennsylvania
GSK Investigational Site
Philadelphia, Pennsylvania, United States, 19107
Sponsors and Collaborators
Study Director: GSK Clinical Trials, MD GlaxoSmithKline
  More Information

Responsible Party: Study Director, GSK Identifier: NCT00650871     History of Changes
Other Study ID Numbers: GW679769/903
Study First Received: March 31, 2008
Last Updated: May 15, 2009

Keywords provided by GlaxoSmithKline:
cognitive function,
primary insomnia,

Additional relevant MeSH terms:
Sleep Initiation and Maintenance Disorders
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases
Mental Disorders
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Gastrointestinal Agents
Neurokinin-1 Receptor Antagonists
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action processed this record on July 21, 2017