Olema Pharmaceuticals, Inc., a biopharmaceutical enterprise in the clinical development stage, is dedicated to discovering, advancing, and commercializing therapeutic solutions for women's oncology. Headquartered in San Francisco, California, the company was established in 2006 and rebranded from CombiThera, Inc. in March 2009. Its most promising investigational compound, OP-1250, an estrogen receptor (ER) antagonist and selective ER degrader, is presently undergoing Phase 1/2 clinical evaluations. This drug candidate is being assessed for its efficacy in managing recurrent, locally advanced, or metastatic breast cancer that expresses estrogen receptors but is negative for human epidermal growth factor receptor 2.