Medicaments for use in treating T-cell acute lymphoblastic leukemia, acute lymphoblastic leukemia, acute myelogenous leukemia, chronic myelogenous leukemia, breast cancer, ovarian cancer, melanoma, lung cancer, pancreatic cancer, glioblastoma, sarcoma, desmoid tumors, adenoid cystic carcinoma, colorectal cancer, head and neck cancer, cervical cancer, prostate cancer, liver cancer, or skin cancer in a patient comprising combination therapy with 4,4,4-trifluoro-N-[(1S)-2-[[(7S)-5-(2-hydroxyethyl)-6-oxo-7H-pyrido[2,3-d][3]benzazepin-7-yl]amino]-1-methyl-2-oxoethyl]butanamide, or a phamlaceutically acceptable salt or hydrate thereof, and 8-[5-(1-hydroxy-1-methylethyl)pyridin-3-yl]-1-[(2S)-2-methoxypropyl]-3-methyl-1,3-dihydro-2H-imidazo[4,5-c]quinolin-2-one, or a pharmaceutically acceptable salt thereof.