About this trial
This research study is designed for patients with extensive-stage small cell lung cancer (ES-SCLC) who have already received four cycles of standard chemotherapy, with at least two cycles combined with immunotherapy, and have achieved disease control (stable disease, partial response, or complete response) at their last efficacy evaluation.
In this study, participants will be randomly assigned to one of two groups:
Group A will receive standard immunotherapy plus 1 to 3 courses of allogeneic natural killer (NK) cell therapy. Each course consists of six NK cell infusions given over 28 days.
Group B will receive standard immunotherapy alone. All participants will continue treatment until their disease progresses or they experience unacceptable side effects. The immunotherapy agents used in this study are those recommended by major international and national clinical guidelines for extensive-stage SCLC, including but not limited to durvalumab, atezolizumab, serplulimab, and adebrelimab.
The purpose of this study is to evaluate whether adding NK cell therapy to standard immunotherapy can provide additional benefits for patients with extensive-stage SCLC who have responded well to initial treatment.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
1: Male or female, aged 18 years or above
Disqualifiers
1:Participate in other clinical trials or use other research drugs or equipment within 4 weeks of the first treatment.
Trial design
Parallel
Treatments tested in this trial
Allogeneic Natural Killer Cells
Biological/VaccineAllogeneic NK cells derived from healthy donors, expanded and activated ex vivo. One course consists of two cycles with 6 IV infusions over 28 days: Days 12, 13, 14 (Cycle 1) and Days 26, 27, 28 (Cycle 2). Patients receive 1-3 courses.
Immune Checkpoint Inhibitor
DrugImmune checkpoint inhibitors recommended for extensive-stage SCLC by NCCN, ESMO, and CSCO guidelines, including but not limited to durvalumab, atezolizumab, serplulimab, adebrelimab, and toripalimab. Administered as IV infusion on Day 1 of each 21-day cycle.
Treatment groups
Trial outcomes
Primary outcomes
Progression free survival
Duration of Overall Response
Incidence and Severity of Treatment-Emergent Adverse Events (TEAEs)
Secondary outcomes
overall survival
Change from baseline in peripheral blood lymphocyte subsets (CD3+CD4+, CD3+CD8+, total CD3+, CD3-CD19+, and CD3-CD16+CD56+ cells) at Day 90
Change from baseline in serum cytokine levels (IL-2, IL-4, IL-6, IL-10, TNF-β, and IFN-γ) at Day 90
Change from baseline in serum tumor markers (SCC) at Day 90
Sponsors and contacts
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