부산대학교 도서관

To purchase or authenticate to the full-text of this article, please visit this link: http://dx.doi.org/10.1111/j.1572-0241.2007.01524.x Byline: John F. Johanson (1), Dan Morton (2), Joseph Geenen (3), Ryuji Ueno (4) Abstract: OBJECTIVES: To assess the efficacy and safety of lubiprostone in adults with chronic constipation. METHODS: This multicenter, parallel-group, double-blind controlled trial enrolled 242 patients with constipation and randomized them to receive oral lubiprostone 24 mcg or placebo twice daily for 4 wk. The primary efficacy end point was the number of spontaneous bowel movements (SBMs; those occurring without use of constipation relieving medications) after 1 wk of double-blind treatment. Other evaluations included SBMs at weeks 2, 3, and 4; bowel movement (BM) characteristics (i.e., consistency and straining); constipation severity; abdominal bloating/discomfort; global treatment effectiveness ratings; and safety assessments. RESULTS: The 120 lubiprostone-treated patients reported a greater mean number of SBMs at week 1 compared with the 122 placebo-treated patients (5.69 vs 3.46, P= 0.0001), with a greater frequency of SBMs also reported at weeks 2, 3, and 4 (P[less than or equal to] 0.002). Within 24 h of the first dose of study drug, 56.7% of those given lubiprostone reported a SBM compared with 36.9% of those given placebo (P= 0.0024); within 48 h, 80% and 60.7% of these patients reported a SBM (P= 0.0013), respectively. Stool consistency, straining, and constipation severity, as well as patient-reported assessments of treatment effectiveness, were significantly improved with lubiprostone compared with placebo at all weeks (P[less than or equal to] 0.0003). The two most common treatment-related adverse events were nausea (31.7%) and headache (11.7%). CONCLUSIONS: In patients with chronic constipation, treatment with lubiprostone produces a BM in the majority of individuals within 24-48 h of initial dosing and improves the frequency as well as other characteristics associated with BMs with short-term (i.e., 4 wk) treatment. The most commonly reported adverse event was mild to moderate nausea, which resulted in treatment discontinuation in 5% of treated patients. Author Affiliation: (1)University of Illinois College of Medicine, Rockford, Illinois (2)GANT Research, Ft. Worth, Texas (3)Gastroenterology Consultants, Ltd., Milwaukee, Wisconsin (4)Sucampo Pharmaceuticals, Inc., Bethesda, Maryland Article History: Received January 10, 2007; accepted July 18, 2007. Article note: Reprint requests and correspondence: John F. Johanson, M.D., 593 Spring Creek Road, Rockford, Illinois 61114.