Official Title: “A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Study to Evaluate the Effect of Pregabalin and Naproxen Sodium on Postoperative Pain After Bunionectomy”

We are interested in whether bunionectomy can be used as a model to study the treatment of acute pain. It has been used to study the effect of Non-Steroidal Anti-inflammatory (NSAIDS) medications (such as ibuprofen) and other pain relieving drugs. We are interested to know if this model is useful to study other drugs for the treatment of acute pain. The other drugs being tested in this study are pregabalin and naproxen sodium. These drugs are approved for use by the Food and Drug Administration (FDA). This study is designed to test whether these two drugs are effective in treating pain after a bunionectomy.

Study Type: Interventional

Study Design: Treatment, Randomized, Double Blind (Subject, Investigator), Placebo Control, Parallel Assignment, Efficacy Study

Study Primary Completion Date: January 2008

Intervention(s) in this Clinical Trial

• Drug: pregabalin
  • Patients will be randomized just prior to surgery to 1 of 3 study treatments: pregabalin (300 mg) treatment will be administered approximately 1 hour prior to surgery. Postoperatively, pregabalin (150 mg) will be dosed starting at 8 hours following T=0 and every 8 hours until 40 hours following T=0.
• Drug: naproxen sodium
  • Patients will be randomized just prior to surgery to 1 of 3 study treatments: naproxen sodium (550 mg) treatment will be administered approximately 1 hour prior to surgery. Postoperatively, naproxen sodium will be dosed starting 12 hours following T=0 and every 12 hours until 36 hours following T=0.
• Drug: Comparator: Placebo (unspecified)
  • Patients will be randomized just prior to surgery to 1 of 3 study treatments: placebo treatment will be administered approximately 1 hour prior to surgery. Postoperatively, placebo will be dosed starting at 8 hours following T=0 and every 8 hours until 40 hours following T=0.

Arms, Groups and Cohorts in this Clinical Trial

• Active Comparator: 1
  • Arm 1: pregabalin
• Active Comparator: 2
  • Arm 2: naproxen sodium
• Placebo Comparator: 3
  • Arm 3: Pbo

Primary Measures

• Reduction in the total dose of PCA hydromorphone use
  • Time Frame: First 24 hours following surgery
    Safety Issue?: No

Secondary Measures

• Time to first request of PCA hydromorphone
  • Time Frame: First 24 hours following surgery
    Safety Issue?: No

Inclusion Criteria:

• Patient is a man or woman between 18 and 65 years of age
• For Women of Child-bearing potential: woman who is currently not pregnant not nursing and who is willing to use a medically acceptable method of birth control from the time after the screening visit until completion of the follow-up visit
• Patient is scheduled to have a bunionectomy
• Patient must be willing to stay at the study site throughout the 48-hour observation period following surgery and is willing to complete a 2-week follow up
• Patient is capable of operating a Patient Controlled Analgesia device

Exclusion Criteria:

• Patient is being treated for a disease and has not been on a stable dose of medication for at least 2 weeks prior to surgery
• Patient has used or intends to use any of the medications that are prohibited by the protocol, which could interfere with the evaluation of the study drugs
• Patient has an estimated creatinine clearance of < or = 60mL per min
• Patient has a history of drug abuse or dependence, or patient has a positive urine drug screen
• Patient has a condition that prevents clear communication concerning pain perception (such as diabetic neuropathy, peripheral neuropathy, etc.)

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: 65 Years

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Lead Sponsor: Merck

Overall Clinical Trial Officials and Contacts

Medical Monitor Study Director Merck  

Information obtained from ClinicalTrials.gov on July 02, 2009

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00601458

Study ID Number: 2007_661

ClinicalTrials.gov Identifier: NCT00601458

Health Authority: United States: Food and Drug Administration