The benefit of elobixibat in chronic constipation is associated with faecal deoxycholic acid but not effects of altered microbiota

Alimentary Pharmacology & Therapeutics
Noboru MisawaMichael Camilleri

Abstract

Elobixibat, a novel inhibitor of apical sodium-dependent bile acid transporter for treating chronic constipation, increases colonic bile acid concentrations, stimulating bowel function. However, it is not clear which bile acids are altered, or whether altered gut microbiota are associated with functional effects that may alter bowel function. To investigate the effects of elobixibat on changes not only in the faecal concentrations of total but also in individual bile acids and in faecal microbiota. This was a prospective, single-centre study. After baseline period, patients received 10 mg daily of elobixibat for 2 weeks. We evaluated the effects on bowel function, changes in faecal bile acid concentrations and composition of gut bacteria, before and after elobixibat administration. In the 30 patients analysed, the frequency of pre- and post-treatment bowel movements per fortnight was 7 and 10 (P < 0.001) respectively. The pre-treatment faecal bile acid concentration increased significantly from 10.9 to 15.0 µg/g stool post-treatment (P = 0.030), with a significant increase in faecal deoxycholic acid (pre-treatment 3.94 µg/g stool to post-treatment 5.02 µg/g stool, P = 0.036) and in glycine-conjugated deoxycholic and chenodeoxyc...Continue Reading

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