A Phase III Randomized Trial of Pembrolizumab in Combination With Sacituzumab Govitecan-hziy vs Standard of Care in Anti-PD(L)1-Resistant Advanced Urothelial Cancer

This phase III trial compares the effectiveness of pembrolizumab and sacituzumab govitecan-hziy to standard of care in treating patients with urothelial cancer that has spread to nearby tissue or lymph nodes (locally advanced) or that has spread to other places in the body (metastatic). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body’s immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Sacituzumab govitecan-hziy is a monoclonal antibody, called sacituzumab, linked to a chemotherapy drug called govitecan-hziy. Sacituzumab attaches to TROP2 positive tumor cells in a targeted way and delivers govitecan-hziy to kill them. The usual treatment approach is treatment with chemotherapy such as cisplatin, carboplatin, gemcitabine, docetaxel or paclitaxel. Cisplatin is in a class of medications known as platinum-containing compounds. It works by killing, stopping or slowing the growth of tumor cells. Carboplatin is in a class of medications known as platinum-containing compounds. It works in a way similar to the anticancer drug cisplatin, but may be better tolerated than cisplatin. Carboplatin works by killing, stopping or slowing the growth of tumor cells. Gemcitabine is a chemotherapy drug that blocks the cells from making deoxyribonucleic acid and may kill tumor cells. Docetaxel is in a class of medications called taxanes. It stops tumor cells from growing and dividing and may kill them. Paclitaxel is in a class of medications called antimicrotubule agents. It stops tumor cells from growing and dividing and may kill them. Giving pembrolizumab and sacituzumab govitecan-hziy may be more effective than usual care of carboplatin or cisplatin with gemcitabine, docetaxel or paclitaxel in treating patients with locally advanced or metastatic urothelial cancer.

Procedure: Biospecimen Collection, Procedure: Computed Tomography, Procedure: Magnetic Resonance Imaging, Biological: Pembrolizumab, Other: Questionnaire Administration, Biological: Sacituzumab Govitecan