| A Study Evaluating the Efficacy and Safety of Giredestrant Compared With Physician's Choice of Endocrine Monotherapy in Participants With Previously Treated Estrogen Receptor-Positive, HER2-Negative Locally Advanced or Metastatic Breast Cancer (acelERA Breast Cancer) | Neoplasms by Site, Skin and Connective Tissue Diseases, breast disorder, breast neoplasm, neoplasm, skin disorder | Active, not recruiting | Phase 2 | 2026-09-11 | | NCT04576455 |
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| A Study Evaluating the Efficacy and Safety of Inavolisib + Palbociclib + Fulvestrant vs Placebo + Palbociclib + Fulvestrant in Participants With PIK3CA-Mutant, Hormone Receptor-Positive, HER2-Negative, Locally Advanced or Metastatic Breast Cancer | Neoplasms by Site, Skin and Connective Tissue Diseases, breast cancer, breast disorder, breast neoplasm, neoplasm, skin disorder | Active, not recruiting | Phase 2 / Phase 3 | 2026-09-11 | | NCT04191499 |
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| A Study Evaluating the Efficacy and Safety of Adjuvant Atezolizumab or Placebo and Trastuzumab Emtansine for Participants With HER2-Positive Breast Cancer at High Risk of Recurrence Following Preoperative Therapy | Neoplasms by Site, Skin and Connective Tissue Diseases, breast cancer, breast disorder, breast neoplasm, neoplasm, skin disorder | Active, not recruiting | Phase 3 | 2026-09-03 | | NCT04873362 |
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| A Study Evaluating the Efficacy and Safety of Giredestrant Combined With Palbociclib Compared With Letrozole Combined With Palbociclib in Participants With Estrogen Receptor-Positive, HER2-Negative Locally Advanced or Metastatic Breast Cancer (persevERA Breast Cancer) | Neoplasms by Site, Skin and Connective Tissue Diseases, breast disorder, breast neoplasm, neoplasm, skin disorder | Active, not recruiting | Phase 3 | 2026-08-17 | | NCT04546009 |
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