Efficacy, safety, and tolerability of the cyclooxygenase-inhibiting nitric oxide donator naproxcinod in treating osteoarthritis of the hip or knee

Jon Karlsson, Aldina Pivodic, Diana Aguirre, Thomas J. Schnitzer

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

Objective. Naproxcinod, a cyclooxygenase-inhibiting nitric oxide donator antiinflammatory drug, was evaluated in this phase 2, double-blind, randomized, parallel group study to determine its optimal dose in patients with osteoarthritis (OA). Methods. In total 543 patients with OA of the hip or knee were randomized to receive naproxcinod 750 mg once daily (qd), 750 mg twice daily (bid), 1125 mg bid, rofecoxib 25 mg qd, or placebo for 6 weeks. The primary efficacy variable was the within-patient change from baseline to the average of Weeks 4 and 6 in WOMAC™ pain subscale score. Treatment-group differences were compared using ANCOVA with factors for treatment and country, and baseline pain subscale score as a covariate. Safety endpoints included vital signs and adverse events. Treatment-group differences in mean change from baseline toWeek 6 in systolic blood pressure (SBP) were compared using an ANCOVA with treatment and country as fixed factors and baseline SBP as covariate. Results. All active treatments showed statistically significant reductions in WOMAC pain score compared to placebo (p ≤ 0.02). Naproxcinod was well tolerated. The 750 mg bid dose appeared to have the best balance of benefit versus safety. All 3 naproxcinod doses showed a reduction in SBP, while an increase was shown for rofecoxib. The changes for the naproxcinod groups were statistically significantly better compared to rofecoxib (p ≤ 0.02). Conclusion. This dose-finding study identified naproxcinod 750 mg bid as the upper dose for further therapeutic confirmatory clinical trials. Naproxcinod at all doses decreased mean SBP compared to an increase with rofecoxib. The Journal of Rheumatology

Original languageEnglish (US)
Pages (from-to)1290-1297
Number of pages8
JournalJournal of Rheumatology
Volume36
Issue number6
DOIs
StatePublished - Jun 1 2009

Keywords

  • Cyclooxygenase-inhibiting nitric oxide donATOR
  • Naproxcinod
  • Osteoarthritis
  • Rofecoxib

ASJC Scopus subject areas

  • Rheumatology
  • Immunology and Allergy
  • Immunology

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