Phase II Study of HMPL-004 in Subjects With Crohn's Disease

This was a double-blind, randomized, multicenter, placebo-controlled study evaluating the efficacy and safety of oral HMPL-004 in subjects with active moderate Crohn's disease (CD) - Crohn's Disease Activity Index (CDAI) 220 to 400 - on stable doses of CD medications who had not received anti-tumor necrosis factor alpha (anti-TNF-α) for at least 3 months prior to start of treatment. HMPL-004 (or placebo) was added to the subject's existing CD medications. Subjects were observed for an 8-week treatment period and a subsequent 4-week follow-up period.