Aimmune Therapeutics, Inc. (AIMT), a biopharmaceutical company developing treatments for potentially life-threatening food allergies, today announced the initiation of a phase 2 study, with Regeneron and Sanofi, of AR101 with adjunctive dupilumab in peanut-allergic patients. AR101 is Aimmune’s investigational biologic oral immunotherapy for desensitization of patients with peanut allergy, and dupilumab is Regeneron and Sanofi’s fully human monoclonal antibody that inhibits signaling of IL-4 and IL-13 cytokines, which are believed to be major drivers of type 2 inflammation. Aimmune is providing clinical supply of AR101, as well as food challenge materials, for the Regeneron-sponsored study.