Answer
Yes. Immune-related reactions can develop after the last administration, so new symptoms should still be reported promptly to the cancer team.
Sources for this answer
- KEYTRUDA 25 mg/mL concentrate for solution for infusion — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.