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| Home > Publications database > Chemotherapy-Free Treatment with Radiotherapy and Immunotherapy for Locally Advanced Non-Small Cell Lung Cancer. |
| Journal Article (Review Article) | DKFZ-2025-00993 |
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2025
MDPI
Basel
Abstract: Background: Concurrent chemoradiotherapy (CRT) followed by immunotherapy is a standard treatment for locally advanced non-small cell lung cancer (LA-NSCLC), yet many patients are ineligible due to treatment-related toxicity or poor functional status. Chemotherapy-free approaches using radiotherapy (RT) and immunotherapy may offer a safer and equally effective alternative in select patient populations. Methods: A comprehensive literature review was conducted using PubMed, Google Scholar, and relevant conference proceedings focusing on trials between 2000 and 2024. Studies investigating chemotherapy-free regimens combining RT and immunotherapy in LA-NSCLC were analyzed, with emphasis on clinical outcomes, biomarker use, treatment sequencing, radiation dose/fractionation, and safety. Results: Multiple Phase I/II trials reported promising efficacy with one-year progression-free survival (PFS) ranging from 39% to 76%. Toxicity was generally acceptable, though higher-grade adverse events were more frequent in older, frail populations. Trials integrating PD-L1 expression, tumor mutational burden (TMB), and circulating tumor DNA (ctDNA) showed potential for improved patient stratification. Variation in immunotherapy timing (induction, concurrent, or consolidation) and radiation schedules highlight the need for optimization. Conclusions: Chemotherapy-free regimens represent a promising treatment strategy for patients with LA-NSCLC, especially those that are ineligible for standard CRT. Biomarker-driven patient selection and the rational integration of RT and immunotherapy are critical to improving outcomes. Randomized trials are warranted to establish the efficacy and safety of these emerging approaches.
Keyword(s): LA-NSCLC ; chemotherapy-free ; immunotherapy ; radiation therapy
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