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J Int Med Res. 2001 Nov-Dec;29(6):467-79.

Comparative efficacy and safety of celecoxib and naproxen in the treatment of osteoarthritis of the hip.

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  • 1Altoona Center for Clinical Research, Altoona, PA, USA.


Osteoarthritis (OA) is responsible for more disability of the lower extremities in the elderly than any other disease in the US. The pain associated with OA is the primary symptom leading to disability in these patients. Current ACR guidelines recommend consideration of acetaminophen for mild-to-moderate pain and conventional non-steroidal anti-inflammatory drugs (NSAIDs) or COX-2 specific inhibitors for moderate-to-severe OA symptoms. The aim of this study was to compare the efficacy and safety of the COX-1 sparing, COX-2 specific inhibitor, celecoxib, with the conventional NSAID naproxen, and placebo, in the treatment of OA of the hip. In this multicenter, randomized, placebo-controlled trial, 1061 patients with symptomatic OA of the hip were randomized to receive celecoxib at doses of 100 mg, 200 mg, or 400 mg/day; naproxen 1000 mg/day; or placebo, for 12 weeks. Patients were evaluated using standard measures of efficacy at baseline, 2-4 days after discontinuing previous NSAID or analgesic therapy, and after 2, 6, and 12 weeks of treatment. All doses of celecoxib and naproxen significantly improved the symptoms of OA, at all time points compared with placebo. This sustained treatment effect of celecoxib was dose dependent. In terms of pain relief and improvement in functional capacity, celecoxib 200 mg/day and 400 mg/day were similarly efficacious and were comparable to naproxen. Both drugs were generally well tolerated. Celecoxib at a dose of 200 mg/day is as effective as a standard therapeutic dose of the conventional NSAID, naproxen, in reducing the pain associated with OA of the hip.

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