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Long-term safety of naproxen and esomeprazole magnesium fixed-dose combination: phase III study in patients at risk for NSAID-associated gastric ulcers.

Author(s): Sostek MB, Fort JG, Estborn L, Vikman K

Affiliation(s): AstraZeneca, Wilmington, DE, USA. Mark.Sostek@AstraZeneca.com

Publication date & source: 2011-04, Curr Med Res Opin., 27(4):847-54. Epub 2011 Feb 14.

Publication type: Clinical Trial, Phase III; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't

OBJECTIVE: To evaluate long-term safety of enteric-coated naproxen 500 mg and immediate-release esomeprazole magnesium 20 mg fixed-dose combination (FDC) in patients at risk of NSAID-associated upper gastrointestinal (UGI) ulcers. RESEARCH DESIGN AND METHODS: In this open-label, multicenter, phase III study, Helicobacter pylori-negative patients aged >/=50 years or 18-49 years with history of uncomplicated ulcer within the past 5 years, who had osteoarthritis, rheumatoid arthritis, or other condition requiring daily NSAIDs for >/=12 months received naproxen/esomeprazole twice daily for 12 months. CLINICAL TRIAL REGISTRATION: NCT00527904. MAIN OUTCOME MEASURES: Adverse events (AEs), vital signs, physical examination, and laboratory tests. Subgroup analyses included age and low-dose aspirin (LDA) use. Predefined NSAID-associated UGI and cardiovascular AEs were analyzed. RESULTS: Of 239 patients treated (safety population), 135 completed >/=348 treatment days (12-month completers). AE incidence was approximately 70%; dyspepsia, constipation, upper respiratory tract infection, nausea, back pain, and contusion were most frequent (>/=5% patients, either population). Treatment-related AEs occurred in 28.0% and 23.7% of patients in the safety and 12-month completer populations, respectively; 18.8% of patients withdrew due to AEs (safety population). Few serious AEs and no deaths occurred. In the safety population, AE incidence was 71.4% and 76.9% in patients aged <65 years (n = 161) and >/=65 years (n = 78), respectively, and 67.6% and 75.8% in LDA users (n = 74) and non-users (n = 165), respectively. Predefined UGI and cardiovascular AEs were observed in 18.8% and 6.3% of patients, respectively, in the safety population, and 16.3% and 5.2%, respectively, in 12-month completers. Dyspepsia and hypertension were most common. Additional assessments showed no unexpected findings. CONCLUSIONS: Based on these outcome measures, long-term treatment with FDC naproxen/esomeprazole is not associated with any new safety issues, including predefined UGI and cardiovascular AEs, in patients requiring NSAID therapy who are at risk of UGI complications.

Page last updated: 2011-12-09

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