Abstract | BACKGROUND AND AIM: METHODS: This Phase 3, double-blind trial randomized IBS-C patients to once-daily oral 290-μg linaclotide or placebo at centers in China, North America, and Oceania. Patients reported bowel and abdominal symptoms daily; adverse events were monitored. Co-primary and secondary endpoints were tested using a predefined three-step serial gatekeeping multiple comparisons procedure. RESULTS: The intent-to-treat population included 839 patients (mean age = 41 years; 82% female; 81% Asian). The trial met all co-primary and secondary endpoints. Co-primary responder criteria were met by 60.0% of linaclotide patients versus 48.8% of placebo patients for abdominal pain/discomfort (≥ 30% decrease for ≥ 6/12 weeks; P < 0.05), and 31.7% of linaclotide versus 15.4% of placebo patients for IBS degree of relief (score ≤ 2 for ≥ 6/12 weeks; P < 0.0001). Secondary 12-week change-from-baseline endpoints (spontaneous bowel movement/complete spontaneous bowel movement frequency, stool consistency, straining, abdominal pain, abdominal discomfort, and abdominal bloating) were significantly improved with linaclotide versus placebo (all P < 0.0001). Diarrhea was the most common adverse event (9.4% linaclotide, 1.2% placebo). Discontinuation rates due to diarrhea were low (0.7% linaclotide, 0.2% placebo). CONCLUSIONS: Once-daily 290-μg linaclotide improved bowel habits, abdominal symptoms, and global measures in a predominantly Chinese IBS-C population.
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Authors | Yunsheng Yang, Jingyuan Fang, Xiaozhong Guo, Ning Dai, Xizhong Shen, Youlin Yang, Jing Sun, Bal Raj Bhandari, David S Reasner, Jacquelyn A Cronin, Mark G Currie, Jeffrey M Johnston, Peter Zeng, Niwat Montreewasuwat, George Zhijian Chen, Sam Lim |
Journal | Journal of gastroenterology and hepatology
(J Gastroenterol Hepatol)
Vol. 33
Issue 5
Pg. 980-989
(May 2018)
ISSN: 1440-1746 [Electronic] Australia |
PMID | 29319191
(Publication Type: Clinical Trial, Phase III, Journal Article)
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Copyright | © 2018 Journal of Gastroenterology and Hepatology Foundation and John Wiley & Sons Australia, Ltd. |
Chemical References |
- Guanylyl Cyclase C Agonists
- Peptides
- linaclotide
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Topics |
- Administration, Oral
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Constipation
(drug therapy, etiology)
- Diarrhea
(chemically induced)
- Double-Blind Method
- Female
- Guanylyl Cyclase C Agonists
(administration & dosage, adverse effects)
- Humans
- Irritable Bowel Syndrome
(complications, drug therapy)
- Male
- Middle Aged
- Peptides
(administration & dosage, adverse effects)
- Treatment Outcome
- Young Adult
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