Clinical Trail of Neoadjuvant of Tislelizumab Combined With Palbociclib in Patients With Platinum-refractory Bladder Urothelial Carcinoma
In order to explore the safety and antitumor efficacy of different doses of CDK4/6 inhibitor Palbociclib in combination with the Tislelizumab in platinum-refractory cT2-4aN0M0 bladder urothelial carcinoma, a phase Ib/II study was conducted.
This study will adopt a 3+3 design and include two predefined dose groups of palbociclib: 100mg QD, 125mg QD. Initially, Tislelizumab, 200 mg administered by intravenous infusion on Day 1 of each 21-day will be administered in combination. The trial will use the first cycle (28 days) as the observation period for tolerability, observing and evaluating the