Summary
Eligible participants will be randomly allocated to one of four treatment arms that are evaluating immunotherapy (called tislelizumab) alone or in combination with other new, experimental drugs.
In Arm A (Active Comparator), participants will receive tislelizumab alone, which will be administered intravenously once every 3 weeks.
In Arm B (Experimental), participants will receive tislelizumab plus a new drug (called BGB-A425), both to be administered intavenously once every 3 weeks.
In Arm C (Experimental), participants will receive tislelizumab plus a new drug (called LBL-007), both to be administered intravenously once every 3 weeks.
In Arm D (Experimetnal), partcipants will receive tislelizumab plus two new drugs (BGB-A425 and LBL-007), all to be administered intravenously once every 3 weeks.