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Prognostic Implications of Timing of Immunotherapy in Stage IV Non-Small Cell Lung Cancer. | LitMetric

AI Article Synopsis

Article Abstract

Background: Currently, the established approach for addressing stage IV non-small cell lung cancer (NSCLC) involves combining chemotherapy with immunotherapy. However, the necessity for molecular analysis prior to commencing immunotherapy often results in a delay in its initiation following the commencement of chemotherapy. Therefore, this study aimed to study the significance of postponing immunotherapy on pertinent patient outcomes.

Methods: Using the National Cancer Database (NCBD), patients diagnosed with stage IV NSCLC between 2017 and 2018 were screened. Inclusion criteria comprised those treated with multi-agent chemotherapy as the first-line therapy within 30 days of treatment, surviving beyond 2 months of diagnosis, and absence of neuroendocrine pathology. Patients were grouped among those receiving immunotherapy within 30 days of chemotherapy, immunotherapy within 31 - 60 days of chemotherapy, or chemotherapy alone. Clinical characteristics were collected and their correlation with the timing of immunotherapy was evaluated. The impact of delaying immunotherapy on overall survival (OS) was investigated using Kaplan-Meier analysis. Multivariate Cox regression analysis was employed to identify independent prognostic variables associated with OS.

Results: Our cohort comprised 99,008 patients with clinical stage IV NSCLC diagnosed between 2017 and 2018, which were distributed in the three treatment groups described above. Patients receiving immunotherapy within 30 days of chemotherapy showed greater OS in contrast to both those subjected to delayed immunotherapy (hazard ratio (HR) = 0.74, 95% confidence interval (CI): 0.64 - 0.87, P = 0.0003). Subsequent multivariate regression analysis showed that postponing immunotherapy, older age, male sex, white race, non-adenocarcinoma histology, higher clinical N stage, use of radiation treatment, and presence of liver metastasis were all associated with worse OS.

Conclusions: Introducing immunotherapy within the first 30 days of chemotherapy initiation significantly increases survival in patients with stage IV NSCLC.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11424121PMC
http://dx.doi.org/10.14740/wjon1924DOI Listing

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