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Mesalamine dose escalation reduces fecal calprotectin in patients with quiescent ulcerative colitis.


ABSTRACT: Among patients with quiescent ulcerative colitis (UC), lower fecal concentrations of calprotectin are associated with lower rates of relapse. We performed an open-label, randomized controlled trial to investigate whether increasing doses of mesalamine reduce concentrations of fecal calprotectin (FC) in patients with quiescent UC.We screened 119 patients with UC in remission on the basis of Simple Clinical Colitis Activity Index scores, FC >50 ?g/g, and intake of no more than 3 g/day mesalamine. Participants taking mesalamine formulations other than multimatrix mesalamine were switched to multimatrix mesalamine (2.4 g/day) for 6 weeks; 52 participants were then randomly assigned (1:1) to a group that continued its current dose of mesalamine (controls, n = 26) or a group that increased its dose by 2.4 g/day for 6 weeks (n = 26). The primary outcome was continued remission with FC <50 ?g/g. Secondary outcomes were continued remission with FC <100 ?g/g or <200 ?g/g (among patients with pre-randomization values above these levels).The primary outcome was achieved by 3.8% of controls and 26.9% of the dose escalation group (P = .0496). More patients in the dose escalation group reduced FC to below 100 ?g/g (P = .04) and 200 ?g/g (P = .005). Among the patients who were still in remission after the randomization phase, clinical relapse occurred sooner in patients with FC >200 ?g/g compared with those with FC <200 ?g/g (P = .01).Among patients with quiescent UC and increased levels of FC, increasing the dose of mesalamine by 2.4 g/day reduced fecal concentrations of calprotectin to those associated with lower rates of relapse. Clinicaltrials.gov number: NCT00652145.

SUBMITTER: Osterman MT 

PROVIDER: S-EPMC4214893 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Mesalamine dose escalation reduces fecal calprotectin in patients with quiescent ulcerative colitis.

Osterman Mark T MT   Aberra Faten N FN   Cross Raymond R   Liakos Steven S   McCabe Robert R   Shafran Ira I   Wolf Douglas D   Hardi Robert R   Nessel Lisa L   Brensinger Colleen C   Gilroy Erin E   Lewis James D JD  

Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 20140430 11


<h4>Background & aims</h4>Among patients with quiescent ulcerative colitis (UC), lower fecal concentrations of calprotectin are associated with lower rates of relapse. We performed an open-label, randomized controlled trial to investigate whether increasing doses of mesalamine reduce concentrations of fecal calprotectin (FC) in patients with quiescent UC.<h4>Methods</h4>We screened 119 patients with UC in remission on the basis of Simple Clinical Colitis Activity Index scores, FC >50 μg/g, and i  ...[more]

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