Aclaris Therapeutics Inc. has gained IND clearance from the FDA for ATI-052, a bispecific anti-thymic stromal lymphopoietin (TSLP)/interleukin-4 receptor (IL-4R) monoclonal antibody being developed to treat certain immuno-inflammatory diseases. A phase Ia/Ib trial, including a proof-of-concept portion in an undisclosed indication, will begin in the current quarter.
The aberrant immune response against self-antigens occurring in autoimmune diseases involves dysregulation of members of intracellular signal transduction pathways such as interleukin-2-inducible T cell kinase (ITK) and Janus kinase (JAK). Aclaris Therapeutics Inc. has detailed the characterization of ATI-2138, a dual ITK/JAK3 covalent inhibitor.
Biosion Inc. is getting more than $40 million in cash up front from Aclaris Therapeutics Inc. for the rights to develop two antibodies. The regulatory and sales milestones could also bring Biosion another $900 million. The two assets are BSI-045B, a high affinity and high potency anti-TSLP monoclonal antibody, and BSI-502, a bispecific antibody directed against TSLP and IL4R.
The blowup in phase II with Aclaris Pharmaceuticals Inc.’s oral MK2 inhibitor zunsemetinib (ATI-450) for moderate to severe rheumatoid arthritis (RA) sent shares (NASDAQ:ACRS) into a tailspin and sparked Wall Street speculation about the firm’s other mid-stage prospect. Wayne, Pa.-based Aclaris’ stock ended Nov. 13 at 64 cents, down $4.11, or 86%, after investors learned that ATI-450 missed the study’s primary and secondary endpoints. Development of the candidate, which was also under phase IIa investigation in psoriatic arthritis, will be stopped.
Pediatrix Therapeutics Inc. licensed exclusive China rights to Aclaris Therapeutics Inc.'s ATI-1777 for investigational “soft” JAK 1/3 inhibitor, for diseases including atopic dermatitis, in exchange for an up-front payment of $5 million and up to $91 million in milestones.
Pediatrix Therapeutics Inc. licensed exclusive China rights to Aclaris Therapeutics Inc.'s ATI-1777 for investigational “soft” JAK 1/3 inhibitor, for diseases including atopic dermatitis, in exchange for an up-front payment of $5 million and up to $91 million in milestones.
Aclaris Therapeutics Inc. CEO Neal Walker said “a lot of room within rheumatoid arthritis [RA]” remains for new drugs, such as his firm’s orally delivered ATI-450. “We see opportunities given the profile, the relative efficacy and safety that we've already demonstrated, to look at not only potentially monotherapy or earlier treatment of disease but also combo treatment, particularly given the safety profile. I think it's pretty well-known that polypharmacy is the rule in this indication.”
