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Clinical Trial
Comparative Study
Journal Article
Multicenter Study
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
A placebo-controlled comparative evaluation of diclofenac dispersible versus ibuprofen in postoperative pain after third molar surgery.
Journal of Clinical Pharmacology 1994 March
The analgesic efficacy of single oral doses of drinkable diclofenac dispersible 50 mg was compared with that of ibuprofen 400 mg and placebo in a randomized, double-blind, parallel-group trial in 257 adult patients (245 valid for efficacy) with severe postoperative pain after extraction of an impacted lower third molar. In this study, pain intensity (on a 100-mm visual analog scale) and pain relief from baseline (using a five-point verbal rating scale) were assessed serially during an observation period of 6 hours. Intake of rescue analgesic was permitted in case of insufficient therapeutic effect; however at least 1 hour should have elapsed after test drug consumption. On the main efficacy variable, namely, reduction in the pain intensity score, both diclofenac dispersible (n = 83) and ibuprofen (n = 80) were statistically significantly (P < .01) superior to placebo (n = 82) starting at 20 and 40 minutes, respectively, after drug intake. The active medications were also significantly (P < .01) better than placebo for the secondary efficacy parameters viz. summed pain relief scores over 6 hours (TOTPAR-6); frequency of remedication with a rescue analgesic in the three treatment groups (diclofenac, 24%; ibuprofen, 28%; placebo, 65%); mean time to remedication; and global evaluation. All the treatments were well tolerated. Thus assay sensitivity of this trial (ibuprofen significantly better than placebo) has been demonstrated; in addition, diclofenac as a dispersible formulation has been shown to be an effective analgesic for the treatment of post-surgical dental pain.
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