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AC-201, an TYK2/JAK1 Inhibitor, Hits PASI-75 at Week 12 in Psoriasis Phase 2 Trial
Accropeutics announced positive Phase 2 trial results of AC-201, an oral TYK2/JAK1 inhibitor, for moderate-to-severe plaque psoriasis on May 20, 2025.
The randomized, double-blind, placebo-controlled trial involved 145 Chinese patients and aimed to evaluate PASI-75 and sPGA-0/1 endpoints at Week 12.
All three dosing groups of AC-201 achieved primary and key secondary endpoints with no serious adverse events or discontinuations reported.
PASI-75 response rates reached up to 71.4% sPGA-0/1 at 50mg BID , while placebo rates were 8.1% for PASI-75 and 5.4% for sPGA-0/1.
The positive efficacy and safety outcomes from the Phase 2 trial of AC-201 justify progressing the drug to Phase 3 studies and highlight its promise for treating psoriasis as well as other immune-mediated inflammatory conditions.