Effects of vedolizumab in Japanese patients with Crohn's disease: a prospective, multicenter, randomized, placebo-controlled Phase 3 trial with exploratory analyses.
Ontology highlight
ABSTRACT: BACKGROUND:Vedolizumab is a gut-selective humanized antibody that binds the ?4?7 integrin. We evaluated efficacy and safety of vedolizumab in Japanese patients with moderate-to-severe Crohn's disease (CD). METHODS:In this Phase 3, double-blind study (NCT02038920), 157 patients were randomized to receive intravenous vedolizumab 300 mg (n?=?79) or placebo (n?=?78) at Weeks 0, 2, and 6 (induction phase). Patients with CD activity index (CDAI)-70 response at Week 10 were randomized to receive vedolizumab 300 mg (n?=?12) or placebo (n?=?12) at Week 14, then every 8 weeks until Week 54 (maintenance phase). Primary endpoints were???100-point reduction in CDAI (CDAI-100 response) at Week 10 for induction, and clinical remission (CR: CDAI???150) at Week 60 for maintenance. RESULTS:At Week 10, 26.6% of patients who received vedolizumab and 16.7% who received placebo achieved CDAI-100 response (odds ratio [OR] [95% confidence interval (CI)] 1.80 [0.82-3.96]; p?=?0.145). At Week 60, 41.7% of vedolizumab-treated patients and 16.7% of placebo-treated patients achieved CR (OR [95% CI] 3.57 [0.53-23.95]; p?=?0.178). The incidence of adverse events was similar in both treatment groups in both induction and maintenance phases. In patients without prior anti-TNF? exposure or with inadequate response to anti-TNF?, vedolizumab showed improved outcomes over placebo in the induction phase. Age might be a possible predictive factor of CR for future research. CONCLUSION:Vedolizumab showed a numerically greater efficacy versus placebo as induction therapy, but the difference was not statistically significant. Vedolizumab also showed a numerically greater efficacy in maintenance therapy, and was well tolerated.
SUBMITTER: Watanabe K
PROVIDER: S-EPMC7026209 | biostudies-literature | 2020 Mar
REPOSITORIES: biostudies-literature
ACCESS DATA