Rapt Therapeutics Inc. has decided to shut down its zelnecirnon (RPT-193) program in asthma and atopic dermatitis, causing the company’s stock (NASDAQ:RAPT) to sharply decline Nov. 11.
South Korean researchers developed a novel quantum dot and parallel-stacked organic light-emitting diode (QD-PSOLED)-based wearable patch capable of being “freely tunable” in real-time, and described as a flexible and commercial-level technology with wide applications for health care wearables.
Eli Lilly and Co.’s chief scientific officer, Daniel Skovronsky, called peresolimab, the PD-1 agonist previously in the works by the firm for rheumatoid arthritis (RA), a “really interesting mechanism” – but not interesting enough.
Phosphodiesterase 4 (PDE4) is an enzyme known to play a role in inflammatory responses, and it has been pinpointed as an interesting therapeutic target for diseases like atopic dermatitis (AD), but limited efficacy and side effects have prevented the approval of oral formulations.
Atopic dermatitis is a systemic inflammatory disorder where both innate immune cells such as dendritic cells (DCs) and adaptive immune cells, such as B and T cells, contribute to cutaneous inflammation. B and T lymphocyte attenuator (BTLA), highly expressed in mature DCs, is crucial to modulate the activity of all immune cells and acts as a co-inhibitory checkpoint receptor.
As Eli Lilly and Co. launches its recently approved Ebglyss (lebrikizumab) in an atopic dermatitis market already dominated by established biologic Dupixent (dupilumab, Regeneron Pharmaceuticals Inc.), investors tuned into an Amgen Inc. investor call disclosing positive top-line phase III results for rocatinlimab, a monoclonal antibody that could potentially offer patients a new mechanism of action. While data from the Rocket Horizon study showed rocatinlimab hit all co-primary and secondary endpoints, the early findings fell below expectations in a highly competitive market.
Eli Lilly and Co.’s Ebglyss (lebrikizumab) becomes the latest U.S. entrant in the increasingly competitive atopic dermatitis space, following FDA approval of the IL-13-targeting antibody, which will now go up against other biologics such as established blockbuster Dupixent (dupilumab, Regeneron Pharmaceuticals Inc.), as well as more recently approved Adbry (tralokinumab, Leo Pharma Inc.).
