Zentalis Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, focuses on discovering and developing small molecule therapeutics for the treatment of various cancers. Its product candidates include ZN-c3, an inhibitor of WEE1, a protein tyrosine kinase, for the treatment of advanced solid tumors and hematological malignancies. It is in a Phase 2 clinical trial as a monotherapy for the treatment of uterine serous carcinoma indications; a Phase 2 clinical trial in Cyclin E1-driven high-grade serous ovarian cancer, fallopian tube, or primary peritoneal cancer; a Phase 1/2 clinical trial in combination with PARPi for platinum-resistant ovarian cancer; a Phase 1b clinical trial in combination with chemotherapy in platinum-resistant ovarian, peritoneal, or fallopian tube cancer; a Phase 1/2 clinical trial in combination with chemotherapy in relapsed or refractory osteosarcoma; a Phase 1/2 clinical trial with encorafenib and cetuximab for mutant metastatic colorectal cancer; and a Phase 1/2 clinical trial in combination with chemotherapy in pancreatic cancer. The company's product pipeline also includes ZN-d5, an oral small molecule inhibitor of B-cell lymphoma 2, and BCL-xL heterobifunctional degrader, a member of the anti-apoptotic BCL-2 proteins, for solid tumors and hematological malignancies. Zentalis Pharmaceuticals, Inc. has licensing agreements and strategic collaborations with Recurium IP Holdings, LLC; Pfizer, Inc.; and Dana-Farber. The company was incorporated in 2014 and is headquartered in New York, New York.