This application provides a method of treating cancer in a patient comprising administering at least one dose of radiation therapy and at least one PD-1 and/or PD-L1 antagonist, wherein at least one PD-1 and/or PD-L1 antagonist is administered on the same day as a dose of radiation therapy or up to and including 4 days later.本申請案提供治療患者之癌症的方法,其包含投與至少一個劑量之輻射療法及至少一種PD-1及/或PD-L1拮抗劑,其中至少一種PD-1及/或PD-L1拮抗劑係在一個劑量之輻射療法之同一天或直至(且包括)4天之後投與。