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Clinical Trial
. 2001 Sep;23(9):1446-55.
doi: 10.1016/s0149-2918(01)80119-3.

Rofecoxib Versus Codeine/Acetaminophen in Postoperative Dental Pain: A Double-Blind, Randomized, Placebo- And Active Comparator-Controlled Clinical Trial

Affiliations
Clinical Trial

Rofecoxib Versus Codeine/Acetaminophen in Postoperative Dental Pain: A Double-Blind, Randomized, Placebo- And Active Comparator-Controlled Clinical Trial

D J Chang et al. Clin Ther. .

Abstract

Background: In recent studies of acute pain and primary dysmenorrhea, rofecoxib, a nonsteroidal anti-inflammatory drug that selectively targets the cyclooxygenase-2 enzyme, was found to be similar in efficacy to ibuprofen and naproxen sodium.

Objective: The purpose of this study was to determine the analgesic efficacy of a single oral dose of rofecoxib 50 mg compared with the combination of codeine 60 mg/acetaminophen 600 mg in a model of postsurgical dental pain.

Methods: In this double-blind, placebo- and active comparator-controlled, parallel-group study, patients experiencing moderate or severe pain after the surgical extraction of > or = 2 third molars, at least 1 of which was a mandibular impaction, were randomized to receive placebo, rofecoxib 50 mg, or codeine 60 mg/acetaminophen 600 mg. Patient evaluations of pain intensity, pain relief, and global assessments were recorded throughout the 24-hour period after dosing. The 2-stopwatch method was used to determine time to confirmed perceptible pain relief. The primary end point assessing overall analgesic effect was total pain relief over 6 hours (TOPAR6). Secondary end points were patient global assessment of response to therapy (PGART) at 6 hours, onset of analgesia, peak analgesic effect, and duration of analgesia.

Results: A total of 393 patients were enrolled; 182 received rofecoxib, 180 received codeine/acetaminophen, and 31 received placebo. The overall analgesic effect of rofecoxib 50 mg was greater than that of codeine 60 mg/acetaminophen 600 mg for TOPAR6 (12.4 vs 7.0; P < 0.001) and PGART at 6 hours (P < 0.001). The onset of analgesic effect was similar for rofecoxib and codeine/acetaminophen. Peak analgesic effect as measured by peak pain relief scores during the first 6 hours was significantly greater in the rofecoxib group compared with the codeine/acetaminophen group (P < 0.001), as was the duration of analgesic effect measured by the time to rescue analgesia (9.6 hours vs 2.3 hours, P < 0.001). Adverse events were reported in 33.0%, 46.1%, and 32.3% of patients treated with rofecoxib, codeine/acetaminophen, and placebo, respectively. The most common adverse events were nausea (6.0%, 25.0%, and 9.7%, respectively) and vomiting (3.8%, 18.3%, and 6.5%, respectively). Significantly more patients in the codeine/acetaminophen group than in the rofecoxib group experienced adverse events overall (P < 0.050) and nausea in particular (P < 0.001).

Conclusion: In this study of moderate to severe postoperative dental pain, the analgesic efficacy of rofecoxib 50 mg was greater than that of codeine/acetaminophen, with a lower incidence of adverse events and nausea.

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