Consolidation Immunotherapy

The study is being conducted to evaluation of the Efficacy and Safety of QL1706 Combined with Chemotherapy Induction in Sequential Immunotherapy Consolidation After Concurrent Chemoradiotherapy for Limited-Stage Small Cell Lung Cancer(LS-SCLC), and Exploration of the Correlation Between Biomarkers (PD-L1, TMB, ctDNA, etc.) Related to QL1706 Treatment and Treatment Efficacy and Prognosis. QL1706 (Iparomlimab and Tuvonralimab) is a single bifunctional MabPair product against PD-1 and CTLA-4. QL1604 is a monoclonal antibody against PD-1.

The current standard of care for locally advanced non-small cell lung cancer (NSCLC) is concurrent chemoradiation and consolidation immunotherapy. In real world clinical practice, patients who cannot tolerate concurrent chemoradiation generally received radiotherapy alone or sequential chemoradiation. These patients are more likely to develop distant metastases and therefore may require tolerable systemic consolidation regimens. However, there is a lack of evidence from clinical studies on consolidation immunotherapy after radiotherapy alone or sequential chemoradiation. The aim of the study is to explore the efficacy and safety of Tislelizumab consolidation therapy after radiotherapy or sequential chemoradiation in locally advanced NSCLC patients who are intolerable of concurrent concurrent chemoradiation.