Effects of the Cyclooxygenase Inhibiting Nitric Oxide Donator Naproxcinod Versus Naproxen on Systemic Blood Pressure in Patients With Osteoarthritis

Effects of the Cyclooxygenase Inhibiting Nitric Oxide Donator Naproxcinod Versus Naproxen on Systemic Blood Pressure in Patients With Osteoarthritis††Conflicts of interest: Dr. White reports receiving research support during the past 12 months from the National Institutes of Health, Bethesda, Maryland; the Catherine and Patrick Donaghue Medical Research Foundation, West Hartford, Connecticut; the American Heart Association, Dallas, Texas; and Novartis Pharmaceuticals Corporation, East Hanover, New Jersey. Dr. White presently serves as a safety consultant to Gilead Sciences, Inc., Foster City, California; Myriad Genetics, Inc., Salt Lake City, Utah; NicOx S.A., Sophia-Antipolis, France; Takeda Research and Development Group, Deerfield, Illinois; and Teva Neuroscience, Inc., Kansas City, Missouri. Dr. Schnitzer reports receiving research support from the National Institutes of Health; Pfizer Laboratories, Inc., New York, New York; Wyeth Laboratories, Madison, New Jersey; Nordic Bioscience, Herlev, Denmark; Novartis Pharmaceuticals Corporation; Genzyme Corporation, Cambridge, Massachusetts; and Pozen, Inc., Chapel Hill, North Carolina. Dr. Schnitzer presently serves as a consultant to Logical Therapeutics, Inc., Waltham, Massachusetts; NicOx, Inc., Warren, New Jersey; Merck & Company, Inc., Whitehouse Station, New Jersey; SantoSolve AS, Oslo, Norway; Solstice Neurosciences, South San Francisco, California; and Horizon Therapeutics, Northbrook, Illinois. Dr. Schnitzer is a noninvested shareholder of NicOx S.A. Mrs. Fleming is an employee of NicOx, Inc. Drs. Duquesroix and Beekman are employees of NicOx, S.A.
      Traditional nonsteroidal anti-inflammatory drugs are associated with the destabilization of blood pressure (BP) control, particularly in hypertensive patients treated with blockers of the renin-angiotensin system. To assess the potential impact of nitric oxide donation, the effects of naproxcinod with naproxen and placebo on changes in BP were compared in a randomized clinical trial of 916 patients with osteoarthritis after 13 weeks of therapy. In addition, the effects of naproxcinod versus naproxen and placebo on systolic BP in patients with hypertension treated with renin-angiotensin system blockers were evaluated. Naproxcinod 750 mg twice daily reduced systolic BP compared to naproxen 500 mg twice daily (p <0.02). The 2 doses of naproxcinod showed reductions from baseline in diastolic BP relative to naproxen (p <0.04) and similar changes compared to placebo. In 207 patients with hypertension treated with renin-angiotensin–blocking agents alone or with diuretics, the difference in mean change from baseline in systolic BP between naproxen 500 mg and naproxcinod 750 mg was 6.5 mm Hg in favor of naproxcinod (p <0.02). The proportion of patients in the overall population with systolic BP increases ≥10 mm Hg was greater with naproxen 500 mg (22%) compared to naproxcinod 750 mg (14%, p = 0.04), naproxcinod 375 mg (14%, p = 0.055), and placebo (15.6%, p = 0.155). In conclusion, naproxcinod did not induce elevations of BP seen with naproxen, and it had similar effects on BP to that of placebo in patients with osteoarthritis.
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