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  • Title: A randomized, double-blind, placebo-controlled multicentre study to evaluate the efficacy and safety of diclofenac 4% spray gel in the treatment of acute uncomplicated ankle sprain.
    Author: Predel HG, Giannetti B, Seigfried B, Novellini R, Menke G.
    Journal: J Int Med Res; 2013 Aug; 41(4):1187-202. PubMed ID: 23908551.
    Abstract:
    OBJECTIVE: A prospective, randomized, double-blind, placebo-controlled, parallel-group multicentre study to evaluate the efficacy and safety of diclofenac 4% spray gel for the treatment of acute, uncomplicated ankle sprain. METHODS: Outpatients with acute, uncomplicated, one-sided ankle sprain were randomly assigned to receive diclofenac 4% spray gel or placebo (vehicle) three times daily for 14 ± 1 days. The main efficacy endpoint was the intra-individual response to treatment (≥ 50% decrease in swelling of the injured ankle after a treatment period of ≤ 10 days). RESULTS: The response rate was significantly higher in the diclofenac group (n = 118) than the placebo group (n = 114) (91.5% vs. 82.5%). After 3-4 days' treatment, diclofenac spray significantly reduced swelling, spontaneous pain, pain on active movement and tenderness compared with placebo. Diclofenac spray was well tolerated, with a low overall rate of adverse events. CONCLUSIONS: Diclofenac 4% spray gel rapidly relieves pain and improves mobility in patients with acute, uncomplicated ankle sprain and is well tolerated. It may be a useful treatment option for other acute soft tissue injuries.
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