A Prospective, Single-center, Non-randomized, Interventional Study on the Effectiveness and Safety of Combined Immunotargeted Therapy in Patients With Metastatic Non-small Cell Cancer With a RET Gene Translocation
This interventional study will evaluate the effectiveness, safety, and tolerability of pembrolizumab in combination with lenvatinib in adults with metastatic non-small cell lung cancer (NSCLC) who have a confirmed RET gene rearrangement and whose disease has progressed after one or more previous systemic treatments.
Participants will receive pembrolizumab intravenously once every 3 weeks in combination with lenvatinib taken by mouth daily until disease progression, unacceptable side effects, or treatment discontinuation. Tumor response will be assessed using imaging studies according to RECIS