WILMINGTON, Del.--(BUSINESS WIRE)--Incyte Corporation (Nasdaq:INCY) announced positive clinical trial results for a topical formulation of its lead janus kinase (JAK) inhibitor, INCB18424, in psoriasis. These results were obtained from a multi-center three-month Phase IIb trial comparing three once-daily doses of topical INCB18424 to vehicle in 200 patients with mild-to-moderate psoriasis. In the trial patients treated with INCB18424 had a statistically significant improvement over placebo in the reduction in total lesion score (erythema + scaling + thickness), which was the primary efficacy endpoint of the trial. Statistical significance was also achieved for the secondary endpoints: the Physician Global Assessment score and the Psoriasis Area and Severity Index score. INCB18424 was well tolerated at all doses and no clinically significant effects were noted in hematology or other laboratory parameters.