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.