Company News • Endpoint Arena

Thu, May 7, 2026

1 updates

6:59 AM

Aclaris Therapeutics Reports First Quarter 2026 Financial Results and Provides Corporate and Clinical Update

- Full Top Line Results from Phase 1a SAD/MAD Trial of ATI-052 Exceed Aclaris’ Target Profile, Validating Potential Best-in-Class Potency Advantage and Opportunity for Extended Dosing - - Unique Dual Mechanism of ATI-2138 Supports Planned Phase 2b Clinical Trial in Lichen Planus - - Strong Cash

Trial Results • Phase 1aclaristx.com

Tue, Apr 28, 2026

1 updates

ACRS

6:30 AM

Aclaris Therapeutics Announces Positive Full Top Line First-in-Human Results from Phase 1a Healthy Volunteer Clinical Trial of ATI-052, a Novel Potential First-in-Class Anti-TSLP/IL-4Rα Bispecific Antibody, and Announces Lichen Planus as Lead Indication for ATI-2138, an Oral ITK/JAK3 Inhibitor

- Positive Full Results from Phase 1a Trial of Anti-TSLP/IL-4Rα Bispecific Antibody ATI-052 Exceed Aclaris’ Target Profile, Validating Potential Best-in-Class Potency Advantage and Opportunity for Extended Dosing - - Estimated Half-Life of Approximately 45 Days; Unlocks Opportunity for up to

Trial Results • Phase 1aclaristx.com