The purpose of this study is to find out whether the study drug, LY4170156, is safe, tolerable and effective in participants with advanced solid tumors. The study is conducted in two parts - phase Ia (dose-escalation, dose-optimization) and phase Ib (dose-expansion). The study will last up to approximately 4 years.
Dose Escalation: Ovarian (epithelial ovarian, primary peritoneal, and fallopian tube) cancer, endometrial cancer, cervical cancer, non-small cell lung cancer (NSCLC), triple negative breast cancer (TNBC), pancreatic cancer, or colorectal cancer (CRC)
Dose Optimization: Ovarian (epithelial ovarian, primary peritoneal, and fallopian tube) and endometrial cancer
Dose Expansion: Low grade serous ovarian cancer, cervical cancer, NSCLC, and TNBC
Individual with known or suspected uncontrolled central nervous system (CNS) metastases
Individual with history of carcinomatous meningitis
Individual with active uncontrolled systemic bacterial, viral, fungal, or parasitic infection
Individual with evidence of corneal keratopathy or history of corneal transplant
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Treatment groupsSee each treatment group below.