https://www.selleckchem.com/pr....oducts/4-phenylbutyr
Background Great advances have been made for the treatment of urothelial carcinoma by the introduction of checkpoint inhibitors (CPI). Single-agent immunotherapy with CPIs has been approved for patients with metastatic or locally advanced inoperable urothelial carcinoma who have either progressed during or after platinum-based chemotherapy or who are cisplatin-ineligible. For cisplatin-ineligible patients, approval is restricted to patients with high programmed cell death ligand 1 (PD-L1) expression. For patients wit