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CompletedNCT00992160Updated Oct 28, 2016

Vestipitant 28-day Tolerance Study

A Phase 2 interventional study of GW597599 and Placebo in Sleep Disorders, sponsored by GlaxoSmithKline. Completed at 13 sites in Germany. Open to participants aged 18 Years to 64 Years. Per ClinicalTrials.gov, last updated 2016-10-28.

Sponsored by GlaxoSmithKline · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
161
Allocation
Randomized
Ages
18 Years to 64 Years
Sex
All
01

Study summary

This study is a 28-day polysomnographic and subjective assessment of oral Vestipitant 15mg/day for treatment of Primary Insomnia in adults outpatients.

02

Conditions studied

  • Sleep Disorders

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Keywords

  • Polysomnography (PSG)
  • Adults
  • Primary Insomnia
03

In context

Sleep Wake Disorders

788 studies on the registry are indexed under Sleep Wake Disorders; 186 are open to participants now.

This study's enrollment of 161 is above the median of 62 across 548 interventional studies indexed under Sleep Wake Disorders.

Browse Sleep Wake Disorders studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,562 studies on the registry; 117 are open to participants now.

Of its 258 completed or terminated interventional studies of FDA-regulated products, 232 (90%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Male and female aged 18-64 years inclusively with Diagnosis of Primary Insomnia according to Diagnostic and Statistical Manual of Mental Disorders -Text Revision (DSM-IV-TR) criteria 307.42
  • PSG variables collected during 2consecutive PSG screening nights falling as follows: TST between 240-420 mins inclusive (both nights) - LPS (Latency to Persistent Sleep): mean not less than 20mins, each night not less than 15 mins - WASO (Wake After Sleep Onset): mean not less than 60mins, each night not less than 45mins
  • Women: non child bearing potential or if child bearing potential agree on Contraceptive Methods listed in Protocol

Exclusion criteria

Exclusion Criteria:

  • clinically significant Psychiatric and neurological disorders (sleep disorders other than Primary Insomnia, history of alcohol orother substance abuse or dependnce);
  • nightshift or rotating shift-work;
  • Lifestyle habits in agreement with Protocol requirement: caffeine - alcohol intake and smoke
  • healthy according to GSK criteria - laboratory and ECG limits set in the Protocol
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
161 participants (actual)

Study arms

  • Experimental
    Active

    Vestipitant 15mg once daily

    Drug: GW597599

  • Placebo comparator
    Placebo

    Placebo

    Drug: Placebo

Interventions

  • DrugGW597599

    GW597599 15mg tablet

  • DrugPlacebo

    Placebo to match GW597599 15mg tablet

06

What researchers measure

Primary outcomes

  1. Nocturnal polysomngraphy

    Time frame: 6 weeks after start of treatment

Secondary outcomes

  1. Subjective sleep assessments as performed by Post-Sleep Questionnaires and subject -rated Insomnia Severity Index

    Time frame: 4 weeks after start of treatment

  2. Motor and cognitive functioning assessed by neurological tests (Romberg and Hee-to-toe) and Cognitive tests (Digit Symbol Substitution test and verbal Learning Memory test)

    Time frame: 4 weeks after start of treatment

07

Study locations

13 sites
  • GSK Investigational Site
    Kassel, Hessen 34131, Germany
  • GSK Investigational Site
    Schwerin, Mecklenburg-Vorpommern 19053, Germany
  • GSK Investigational Site
    Schwerin, Mecklenburg-Vorpommern 19055, Germany
  • GSK Investigational Site
    Hannover, Niedersachsen 30159, Germany
  • GSK Investigational Site
    Magdeburg, Sachsen-Anhalt 39112, Germany
  • GSK Investigational Site
    Dresden, Sachsen 01307, Germany
  • GSK Investigational Site
    Berlin, 10115, Germany
  • GSK Investigational Site
    Berlin, 10117, Germany
  • GSK Investigational Site
    Berlin, 10629, Germany
  • GSK Investigational Site
    Berlin, 10787, Germany
  • GSK Investigational Site
    Berlin, 13125, Germany
  • GSK Investigational Site
    Hamburg, 20246, Germany
  • GSK Investigational Site
    Hamburg, 20253, Germany
08

References and documents

Individual participant data

Plan to share: Yes — Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 28, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00992160
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Oct 9, 2009
Start date
May 2009
Primary completion
Sep 2009
Completion
Sep 2009
Last update
Oct 28, 2016

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2016. You cannot join it, but the record below documents what was studied.

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