Aclaris Therapeutics Announces Exclusive, Global License Agreement with Biosion, Inc., adding Potential Best-in-Class Biologics Assets to Pipeline

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Aclaris Therapeutics, Inc.
Aclaris Therapeutics, Inc.

- Enhances Aclaris’ pipeline with complementary biologics portfolio -
- Expands leadership team with addition of seasoned biotech executives -
- Management to host conference call today at 8:30 AM ET -

WAYNE, Pa., Nov. 18, 2024 (GLOBE NEWSWIRE) --  Aclaris Therapeutics, Inc. (NASDAQ: ACRS), a clinical-stage biopharmaceutical company focused on developing novel drug candidates for immuno-inflammatory diseases, today announced that it has entered into an exclusive license agreement with Biosion, Inc. (Biosion) for worldwide rights (excluding Greater China) to BSI-045B, a potential best-in-class, clinical-stage, novel anti-TSLP monoclonal antibody, and BSI-502, a potential best-in-class, pre-clinical stage, novel bispecific antibody that is directed against both TSLP and IL4R.

“This transformative transaction, which marks the completion of our strategic review process, accelerates our evolution into becoming a leading immunology company with both small and large molecule drugs," said Dr. Neal Walker, Interim CEO and Chair of the Board of Directors of Aclaris. “Despite recent advances with anti-TSLP and anti-IL4R therapies, there remains substantial unmet need for more effective and convenient treatment options. BSI-045B’s compelling Phase 2a proof-of-concept data in atopic dermatitis, together with BSI-502's dual-targeting approach, complement our existing ITK inhibitor portfolio, resulting in a pipeline of differentiated assets that targets multiple high-value indications. In addition, the proceeds from the private placement financing announced this morning bolsters our balance sheet and provides us with enhanced financial flexibility to support our strategic growth while maintaining our cash runway into 2028.”

In a completed Phase 2a, single-arm, proof-of-concept trial in the United States in 22 patients with moderate to severe atopic dermatitis, BSI-045B was observed to have a pharmacodynamic, safety and efficacy profile that could position it as a potential best-in-class therapy. BSI-045B is also being advanced in multiple Phase 2 studies in China by Biosion's regional partner, Chia Tai Tianqing Pharmaceutical Group, Co., Ltd. (CTTQ), targeting both severe asthma and chronic rhinosinusitis with nasal polyps, accelerating the potential to show proof-of-concept across additional indications.

“This strategic transaction brings together Biosion's and Aclaris’ innovative programs with Aclaris' development capabilities in immunology," said James Loerop, Chief Business Officer of Aclaris. "With our expanded portfolio, we have created a diversified pipeline of strategic opportunities across various immunologic and respiratory indications.”