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| Therapy Name | Letrozole + Onapristone + Palbociclib |
| Synonyms | |
| Therapy Description | |
| Drug Name | Trade Name | Synonyms | Drug Classes | Drug Description |
|---|---|---|---|---|
| Letrozole | Femara | Letrozol | Aromatase Inhibitor 3 | Femara (letrozole) is an aromatase inhibitor, which inhibits estrogen synthesis, and is approved for postmenopausal women with hormone receptor positive breast cancer (FDA.gov). |
| Onapristone | ZK299|ZK-98299 | Hormone - Anti-progestins 6 | Onapristone (ZK299) binds to and inhibits progesterone receptors, potentially resulting in decreased proliferation of progesterone receptor expressing cells (PMID: 32594454). | |
| Palbociclib | Ibrance | PD0332991|PD-0332991 | CDK4/6 Inhibitor 14 | Ibrance (palbociclib) is a selective inhibitor of cyclin-dependent kinase 4 (CDK4) and 6 (CDK6) (PMID: 19874578). Ibrance (palbociclib) is approved in combination with an aromatase inhibitor in postmenopausal patients with ER-positive, ERBB2 (HER2)-negative metastatic breast cancer, and in combination with Faslodex (fulvestrant) in patients with ER-positive, ERBB2 (HER2)-negative metastatic breast cancer (FDA.gov). |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|
| Clinical Trial | Phase | Therapies | Title | Recruitment Status | Covered Countries | Other Countries |
|---|---|---|---|---|---|---|
| NCT04872608 | Phase I | Letrozole + Onapristone + Palbociclib | A Study of Letrozole, Palbociclib, and Onapristone ER in People With Metastatic Breast Cancer | Withdrawn | USA | 0 |