A Study of QL1706 Combined With Chemotherapy Induction on Sequential Immunotherapy Consolidation in Patients With Limited-Stage Small Cell Lung Cancer After Chemoradiotherapy
A Study of QL1706 Combined With Chemotherapy Induction on Sequential Immunotherapy Consolidation in Patients With Limited-Stage Small Cell Lung Cancer After Chemoradiotherapy：A Phase II Trial
Shanghai Chest Hospital
28 participants
Oct 23, 2025
INTERVENTIONAL
Conditions
Summary
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.
Eligibility
Plain Language Summary
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Interventions
Induction: QL1706 5 mg/kg IV on Day 1, Etoposide: 100 mg/m² IV on Days 1-3, Cisplatin or Carboplatin: Cisplatin 75 mg/m² IV on Day 1 or Cisplatin 25 mg/m² IV on Days 1-3, Or Carboplatin AUC = 5 IV on Day 1, Q3W, for a total of 2 cycles. Chemoradiotherapy：Thoracic Radiotherapy（60 Gy in 30 fractions, once daily (2 Gy/fraction), or 45 Gy in 30 fractions, twice daily (1.5 Gy/fraction)），Etoposide 100 mg/m² IV on Days 1-3, Cisplatin either 75 mg/m² IV on Day 1, or 25 mg/m² IV on Days 1-3, Or Carboplatin AUC=5 IV on Day 1 PCI: Patients achieving or approaching complete response, per investigator assessment, 25Gy in 10 fractions. Consolidation: QL1706 5 mg/kg IV on Day 1, Q3W
Locations(1)
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NCT07091305