Clinical Trial: A Novel High-Dose 1 G Mesalamine Suppository (salofalk) Once Daily is As Efficacious As A 500-Mg Suppository Thrice Daily in Active Ulcerative Proctitis

Inflammatory bowel diseases(2010)

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摘要
Background: Mesalamine suppositories are first-line therapy in active ulcerative proctitis: the standard regime still recommends multiple doses per day. The primary objective of this study was to show the noninferiority of once-daily administration of a novel 1 g mesalamine suppository versus thrice-daily administration of the 0.5 g mesalamine suppository.Methods: This was a single-blind (investigator-blinded), randomized, multicenter, comparative, Phase III clinical trial. Patients with mild to moderately active ulcerative proctitis inserted either one mesalamine 1 g suppository at bedtime or one mesalamine 0.5 g suppository thrice daily over a 6-week period. The primary endpoint was rate of remission (Disease Activity Index below 4).Results: In all, 354 patients were evaluable for safety and per-protocol analysis. The new regimen demonstrated noninferiority: The percentage of patients with remission was 87.9% for the once-daily 1 g mesalamine suppository and 90.7% for the thrice-daily 0.5 g mesalamine suppository. Each regimen resulted in prompt cessation of clinical symptoms (e.g., median time to <= 3 stools per day (all without blood): 5 days in the I g mesalamine once-daily and 7 days in the 0.5 g mesalamine thrice-daily group). Patients preferred applying suppositories once a day.Conclusions: In active ulcerative proctitis the once-daily administration of a 1 g mesalamine suppository is as effective and safe, yet considerably more convenient, than the standard thrice-daily administration of a 0.5 g mesalamine suppository.
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关键词
mesalamine,N-acetyltransferase,once-daily,proctitis,suppository,distal ulcerative colitis
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