Answer
It is not recommended during pregnancy because safety data are lacking, and breastfeeding should stop during treatment because transfer into milk and risk to the infant are unknown.
Sources for this answer
- KIMMTRAK (tebentafusp) 200 micrograms/ mL concentrate for solution for infusion — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.