RESULTS OF TREATMENT OF NON-SMALL CELL LUNG CANCER WITHOUT EGFR GENE MUTATION WITH BRAIN METASTASIS USING RADIOTHERAPY FOR METASTATIC BRAIN SEQUENTIALLY COMBINED WITH PLATINUM BASED CHEMOTHERAPY AT K HOSPITAL

Công Định Đinh , Công Hoàng Nguyễn

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Abstract

Purpose: Our study aims to scrutinize clinical characteristics, assess treatment outcomes, and analyze factors related to survival rates. In Gamma knife radiotherapy and whole-brain radiotherapy for metastatic brain, without EGFR gene mutation in NSCLC patients at K Hospital. Methods: 120 NSCLC patients, without EGFR gene mutation, and brain metastases. Treatment: 60 patients with Gamma knife radiotherapy, 60 patients with whole-brain radiotherapy, sequentially combined with Platinum-based chemotherapy like Paclitaxel-Carboplatin or Pemetrexet-Cisplatin at K Hospital from 2018 to 2023. Observations of clinical characteristics, survival outcomes, and analysis of relevant factors. Results: Median OS for the whole-brain radiotherapy group was 6 ± 0.4 months. Median OS for Gamma knife combined with Platinum chemotherapy was 17 ± 2.9 months. Survival rates for Gamma knife-treated groups at 6 months: 89.9%, 12 months: 62.9%, 18 months: 42.3%. Median PFS at brain : 12 ± 1.7 months. Statistical significance observed in the number of metastatic lesions between OS, PFS in the brain (p < 0.05). Conclusion: Gamma knife radiotherapy combined with Platinum-based chemotherapy in NSCLC patients without EGFR mutation in brain metastases yields a superior OS result of 17 ± 2.9 months compared to the whole-brain radiotherapy group, which had a shorter OS time of 6 ± 0.4 months. The number of metastatic lesions shows statistical significance with both OS and PFS durations.

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