Aclaris Therapeutics, Inc. (NASDAQ:ACRS), a clinical-stage biopharmaceutical company focused on developing novel product candidates for immuno-inflammatory diseases, today announced that it will provide the full results from its Phase 1a single and multiple ascending dose trial of its anti-TSLP/IL-4R bispecific antibody ATI-052 and the results of its lead indication selection process for its ITK/JAK3 Inhibitor ATI-2138 before the opening of the financial markets tomorrow, April 28, 2026.

Aclaris will host a webcast and conference call with slides tomorrow morning at 8:30 AM EST to discuss these updates. The live and archived webcast will be available on the Events page of the Company's website: https://investor.aclaristx.com/events. The webcast will be archived on the same page for 30 days following the event. If you would rather access the call via telephone: To register and receive a dial in number and unique PIN to access the live conference call, please follow this link to register online. Upon registering you will receive the dial-in info and a unique PIN to join the call as well as an email confirmation with the details.