I am unimpressed with their efficacy rate. Not to mention the length of time it takes to get results. And the fact that it's systemic rather than being locally administered.

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At week 32, the rate of clinical remission was 21% in the group that received 1 mg of ozanimod, 26% in the group that received 0.5 mg of ozanimod, and 6% in the group that received placebo; the rate of clinical response was 51%, 35%, and 20%, respectively.

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http://www.nejm.org/doi/full/10.1056/NEJMoa1513248