Aileron Treats First Patient With ALRN-6924 In Breast Cancer Setting Aileron Therapeutics (NASDAQ: ALRN) enrolled the first patients in its Phase 1b clinical trial evaluating ALRN-6924 for bone marrow in patients patients with p53-mutated breast cancer who are being treated with doxorubicin plus cyclophosphamide and docetaxel (AC+D). Benzinga · May 19, 2022