Clinical Trial of Gabapentin to Improve Postoperative Pain in Surgical Patients

This study has been completed.
Information provided by (Responsible Party):
University of California, San Francisco Identifier:
First received: September 19, 2005
Last updated: July 14, 2015
Last verified: July 2015
This will be a double blind, placebo-controlled study of patients ≥65 years of age undergoing surgery of the spine, hips and knees replacement at the University of California, San Francisco (UCSF) Medical Center. Intraoperative anesthetic and postoperative pain management will be standardized. Patients will be randomized to receive either placebo or gabapentin preoperatively, and continued postoperatively until discharge. Intraoperative anesthetic and other postoperative pain management strategies will be standardized. Postoperative delirium will be measured using structured interviews. Cognitive function will be measured using a battery of neurocognitive tests pre- and post-operatively. Using an intention to treat strategy, we, the researchers at UCSF, will compare the amount of postoperative pain, narcotic requirements, and postoperative delirium and cognitive dysfunction between the two groups.

Condition Intervention Phase
Postoperative Pain
Drug: Gabapentin
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Clinical Trial of Gabapentin to Improve Postoperative Pain in Surgical Patients

Resource links provided by NLM:

Further study details as provided by University of California, San Francisco:

Primary Outcome Measures:
  • Postoperative delirium and cognitive decline [ Time Frame: postoperative days 1, 2 and 3 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Postoperative opioid doses and pain scores [ Time Frame: postoperative days 1, 2 and 3 ] [ Designated as safety issue: Yes ]

Enrollment: 750
Study Start Date: January 2006
Study Completion Date: July 2014
Primary Completion Date: January 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Gabapentin
Double blind, placebo controlled
Drug: Gabapentin
This is a Double blind, placebo-controlled experimental study in which gabapentin adjusted for renal clearance (or placebo) is given preoperatively and also the first three postoperative days
Other Name: gabapentin versus placebo

  Show Detailed Description


Ages Eligible for Study:   65 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Male or female ≥45 years of age undergoing surgery involving the spine, hip or knee replacement.
  • English speaking.
  • Anticipated to stay in the hospital for at least 48 hours.

Exclusion Criteria:

  • Patients who take gabapentin preoperatively, or have known sensitivity to the drug, or those unable to be randomized to receive gabapentin.
  • Subjects who are unable to provide informed consent.
  • Patients with a history of narcotic tolerance.
  • Patients with planned two stage spinal procedures (anterior-posterior spinal fusion to be done on two separate days).
  Contacts and Locations
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Please refer to this study by its identifier: NCT00221338

United States, California
University of California, San Francisco
San Francisco, California, United States, 94143-0648
Sponsors and Collaborators
University of California, San Francisco
Principal Investigator: Jacqueline M Leung, MD, MPH University of California, San Francisco, CA, USA
  More Information

Responsible Party: University of California, San Francisco Identifier: NCT00221338     History of Changes
Other Study ID Numbers: H5636-26795-01
Study First Received: September 19, 2005
Last Updated: July 14, 2015
Health Authority: United States: Institutional Review Board

Keywords provided by University of California, San Francisco:
cognitive decline

Additional relevant MeSH terms:
Pain, Postoperative
Pathologic Processes
Postoperative Complications
Signs and Symptoms
Anti-Anxiety Agents
Anti-Dyskinesia Agents
Antimanic Agents
Antiparkinson Agents
Calcium Channel Blockers
Cardiovascular Agents
Central Nervous System Agents
Central Nervous System Depressants
Excitatory Amino Acid Agents
Excitatory Amino Acid Antagonists
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Neurotransmitter Agents
Peripheral Nervous System Agents
Pharmacologic Actions
Physiological Effects of Drugs
Psychotropic Drugs
Sensory System Agents
Therapeutic Uses
Tranquilizing Agents processed this record on November 25, 2015