PT - JOURNAL ARTICLE AU - Tack, J AU - Müller-Lissner, S AU - Bytzer, P AU - Corinaldesi, R AU - Chang, L AU - Viegas, A AU - Schnekenbuehl, S AU - Dunger-Baldauf, C AU - Rueegg, P TI - A randomised controlled trial assessing the efficacy and safety of repeated tegaserod therapy in women with irritable bowel syndrome with constipation AID - 10.1136/gut.2005.070789 DP - 2005 Dec 01 TA - Gut PG - 1707--1713 VI - 54 IP - 12 4099 - http://gut.bmj.com/content/54/12/1707.short 4100 - http://gut.bmj.com/content/54/12/1707.full SO - Gut2005 Dec 01; 54 AB - Background: It has been proposed that treatments for irritable bowel syndrome with constipation (IBS-C) should provide rapid symptomatic relief, be intermittent, and effective upon repeated use. Aims: To evaluate the efficacy and safety of tegaserod on IBS symptoms, and its impact on quality of life and health economic measures. Patients: Women (⩾18 years of age) with IBS-C according to the Rome II criteria. Methods: Prospective, double blind, placebo controlled, randomised trial. Women with IBS-C either received tegaserod 6 mg twice daily or placebo for one month. Patients with at least a partial response entered a treatment free interval. Upon symptom recurrence, tegaserod treated patients were re-randomised to tegaserod or placebo for an additional month. Primary efficacy variables were response (overall IBS symptoms and abdominal discomfort/pain) to first and repeated treatment. Analysis was by intention to treat. Results: 2660 patients and 1191 patients were randomised for first and repeated treatment respectively. Tegaserod was superior to placebo for each primary efficacy variable (first treatment: 33.7% v 24.2% responders respectively for relief of IBS symptoms and 31.3% v 22.1% for relief of abdominal discomfort/pain; repeated treatment: 44.9% v 28.7%, and 42.4% v 27.1%, all p<0.0001). Tegaserod was superior to placebo for every secondary efficacy variable (relief of abdominal discomfort/pain, bloating and constipation; stool frequency and consistency). A response to tegaserod was observed within the first treatment week. Tegaserod produced greater satisfaction, work productivity, and improved quality of life than placebo (p<0.05). Conclusion: Tegaserod provides rapid and sustained relief of IBS-C symptoms both during first and repeated treatment.