Answer
Yes. For the licensed indication, a RET mutation should be confirmed with a validated test before treatment because activity is considered insufficient when no RET mutation is identified.
Sources for this answer
- Caprelsa 100 mg film coated tablets — Current selected SmPCemc · Summary of Product Characteristics
- UK GovernmentUK Government · Reputable Web
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.