Vedolizumab as induction and maintenance therapy for ulcerative colitis.

Published on Aug 21, 2013in The New England Journal of Medicine74.699
· DOI :10.1056/NEJMOA1215734
Brian G. Feagan115
Estimated H-index: 115
(UWO: University of Western Ontario),
Paul Rutgeerts167
Estimated H-index: 167
(Katholieke Universiteit Leuven)
+ 13 AuthorsAsit Parikh18
Estimated H-index: 18
(Takeda Pharmaceutical Company)
We conducted two integrated randomized, double-blind, placebo-controlled trials of vedolizumab in patients with active disease. In the trial of induction therapy, 374 pa tients (cohort 1) received vedolizumab (at a dose of 300 mg) or placebo intravenously at weeks 0 and 2, and 521 patients (cohort 2) received open-label vedolizumab at weeks 0 and 2, with disease evaluation at week 6. In the trial of maintenance therapy, patients in either cohort who had a response to vedolizumab at week 6 were randomly assigned to continue receiving vedolizumab every 8 or 4 weeks or to switch to placebo for up to 52 weeks. A response was defined as a reduction in the Mayo Clinic score (range, 0 to 12, with higher scores indicating more active disease) of at least 3 points and a de crease of at least 30% from baseline, with an accompanying decrease in the rectal bleeding subscore of at least 1 point or an absolute rectal bleeding subscore of 0 or 1. Results Response rates at week 6 were 47.1% and 25.5% among patients in the vedolizumab group and placebo group, respectively (difference with adjustment for stratification factors, 21.7 percentage points; 95% confidence interval [CI], 11.6 to 31.7; P 1), as compared with 15.9% of pa tients who switched to placebo (adjusted difference, 26.1 percentage points for vedoliz umab every 8 weeks vs. placebo [95% CI, 14.9 to 37.2; P<0.001] and 29.1 percentage points for vedolizumab every 4 weeks vs. placebo [95% CI, 17.9 to 40.4; P<0.001]). The frequency of adverse events was similar in the vedolizumab and placebo groups. Conclusions Vedolizumab was more effective than placebo as induction and maintenance therapy for ulcerative colitis. (Funded by Millennium Pharmaceuticals; GEMINI 1 number, NCT00783718.)
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