4.4 Article

Efficacy and safety of lubiprostone for the treatment of functional constipation in Chinese adult patients: A multicenter, randomized, double-blind, placebo-controlled trial

期刊

JOURNAL OF DIGESTIVE DISEASES
卷 22, 期 11, 页码 622-629

出版社

WILEY
DOI: 10.1111/1751-2980.13058

关键词

adult Chinese patients; functional constipation; lubiprostone; randomized placebo-controlled trial

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The study demonstrated the efficacy and safety of lubiprostone in treating Chinese adults with functional constipation, showing significant increase in the frequency of spontaneous bowel movements and improvement in stool consistency without causing severe adverse events.
Objectives Functional constipation is a gastrointestinal disorder prevalent around the world. Lubiprostone is the first locally acting type-2 chloride channel activator to be used for treating constipation. This study aimed to evaluate the efficacy and safety of lubiprostone in Chinese adults with functional constipation. Methods This was a multicenter, randomized, double-blind, placebo-controlled study. Patients with functional constipation were randomized to receive either lubiprostone (24 mcg twice daily) or placebo for 4 weeks. The primary end-point was the frequency of spontaneous bowel movements (SBMs) during the first week of treatment. The secondary end-points included the median time of the first SBM, SBM frequency at weeks 2, 3 and 4, weekly response rate of SBMs, the stool consistency score and average number of complete spontaneous bowel movements (CSBMs) per week. Results In total, 259 patients were randomized, with 130 in the lubiprostone group and 129 in the placebo group. SBM frequency was higher in the lubiprostone group (4.88 +/- 4.09/wk) than that in the placebo group (3.22 +/- 2.01/wk) at week 1 (P < 0.0001). SBM frequency was also higher in the lubiprostone group at weeks 2, 3 and 4. The average number of CSBMs and the stool consistency score in the lubiprostone group were significantly higher than that in the placebo group at each week. No drug-related serious adverse events (AEs) occurred. The most commonly reported AE was nausea. Conclusion Lubiprostone was superior to placebo in treating Chinese patients with functional constipation, together with good safety profile.

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