Chemotherapy-immunotherapy-based Split-course Adaptive Hypofractionated Radiotherapy for Extensive-stage SCLC

Each treatment cycle comprises a solitary radiotherapy session, which allows for its integration with chemotherapy and immunotherapy. The radiotherapy sessions are scheduled at three-week intervals, thereby affording extended recovery periods for normal tissues. An adaptive radiotherapy plan is implemented for each cycle, enabling precise adjustments to the treatment target area in response to the reduction in tumor volume.