Evaluation of Plecanatide for the Treatment of Chronic Idiopathic Constipation and Irritable Bowel Syndrome With Constipation in Patients 65 Years or Older


Main idea: Plecanatide is a well-tolerated and effective treatment option for patients aged ≥65 years with CIC or IBS-C.


Chronic idiopathic constipation (CIC) and irritable bowel syndrome with constipation (IBS-C) are common functional gastrointestinal disorders. The prevalence of constipation-related issues tends to increase with age. This analysis pooled data from Phase III trials in CIC and IBS-C to assess the safety and efficacy of plecanatide in patients aged ≥65 years.

The pooled intention-to-treat population comprised 451 patients aged ≥65 years (mean age, 70 years) and 4364 patients aged <65 years (mean age, 41.9 years), of whom 287 and 2914, respectively, were randomized to receive plecanatide. Compared with placebo, plecanatide produced statistically significant improvements in stool consistency from baseline at week 12 (both age groups), CSBM and SBM frequency from baseline at week 12 (plecanatide 3 mg group aged ≥65 years and both plecanatide groups aged <65 years), and time from the start of therapy to first CSBM (both age groups) and SBM (plecanatide 6 mg group aged ≥65 years and both plecanatide groups aged <65 years). No new safety issues were observed.


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