ASSESSMENT OF THE RESULTS OF STEP 1 TREATMENT OF STAGE IV NON-CELLULAR CANCER WITH EGFR MUTATIONS WITH OSIMETINIB

Thị Vân Nguyễn 1, Thị Vân Nguyễn 1, Anh Tú Đỗ 1,, Hồng Thăng Vũ 2
1 k hospital
2 HMU

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Abstract

Objectives: Evaluation of results of first-line treatment of stage IV non-small cell lung cancer patients with EGFR mutations with osimtinib at K hospital from January 2018 to December 2022. Subjects and research methods: A retrospective and prospective cross-sectional descriptive study with longitudinal follow-up of 67 patients with stage IV non-small cell lung cancer with EGFR gene mutations, who received first-step treatment with osimtinib at K Hospital since January 1/2018 to December 2022. Result: The response rate was 82.1%, the disease control rate was 96.5%. The response rate at brain metastatic lesions was 88.6%. Median PFS was 17.6 months. PFS benefits were independent of age, sex, genetic mutation,  PS or brain metastases at the time of diagnosis (p>0.05). Conclusion: 1st step treatment using osimertinib in stage IV non-small cell lung cancer patients with EGFR mutations resulted in a high overall response rate as well as a brain response, prolonging progression-free survival.

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