RecruitingPhase 2Drug trialA Study to Test Inavolisib Treatments in Participants With Early-Stage, PIK3CA-Mutated Breast CancerThis study will evaluate the safety and efficacy of inavolisib combination therapies in participants with untreated, PIK3CA-mutated, Stage II-III, estrogen receptor (ER)-positive, Human Epidermal Growth Factor Receptor 2 (HER2)-negative breast cancer (BC).