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A Trial to Assess Consumer Self-Selection and Use of Gabapentin for Occasional Sleeplessness in an Over-the-Counter Environment

This study has been completed.
Information provided by:
Pfizer Identifier:
First received: April 1, 2008
Last updated: April 22, 2011
Last verified: April 2011
The purpose of this study is to assess consumers' behaviors related to gabapentin self- selection and use, relative to warnings and directions for use, as described in the proposed over-the-counter (OTC) product label.

Condition Intervention Phase
Transient Insomnia
Drug: Gabapentin
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A 3-Month, Open-Label, Pharmacy-Based, Actual-Use Trial in a Simulated Over-The-Counter (OTC) Environment to Assess Self-Selection and Consumer Use Patterns of Gabapentin 250 mg for Occasional Sleeplessness

Resource links provided by NLM:

Further study details as provided by Pfizer:

Primary Outcome Measures:
  • Proportion of subjects who selected or purchased gabapentin for use (patients had symptoms consistent with indication and no contraindications) [ Time Frame: Throughout Day 90 ]
  • Subject compliance with directions for use (number of capsules per dose and the number of doses per day) [ Time Frame: Throughout Day 90 ]

Secondary Outcome Measures:
  • Adverse events [ Time Frame: Duration of study ]

Enrollment: 1254
Study Start Date: August 2006
Study Completion Date: January 2007
Arms Assigned Interventions
Experimental: A Drug: Gabapentin
Gabapentin 50 mg oral capsule 30 minutes before bedtime


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Age of 18 years or older with symptoms of sleeplessness
  • Provided informed consent

Exclusion Criteria:

  • Contraindications to use of gabapentin
  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: NCT00659100

  Show 35 Study Locations
Sponsors and Collaborators
Study Director: Pfizer Call Center Pfizer
  More Information

Additional Information:
Responsible Party: Director, Clinical Trial Disclosure Group, Pfizer, Inc. Identifier: NCT00659100     History of Changes
Other Study ID Numbers: A9451159
Study First Received: April 1, 2008
Last Updated: April 22, 2011

Additional relevant MeSH terms:
Sleep Disorders, Intrinsic
Sleep Initiation and Maintenance Disorders
Sleep Wake Disorders
Nervous System Diseases
Mental Disorders
gamma-Aminobutyric Acid
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Antiparkinson Agents
Anti-Dyskinesia Agents
Calcium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Anti-Anxiety Agents
Tranquilizing Agents
Central Nervous System Depressants
Psychotropic Drugs
Excitatory Amino Acid Antagonists
Excitatory Amino Acid Agents
Neurotransmitter Agents
Antimanic Agents
GABA Agents processed this record on April 21, 2017