RESULTS OF AFATINIB FOR BRAIN METASTASIS IN EGFR MUTATED NON-SMALL CELL LUNG CANCER

Thị Bích Phượng Nguyễn1, Thị Thảo Hiền Trương 2, Thị Hồng Quỳnh Mai 3, Hoàng Gia Nguyễn3,
1 k hospital
2 108 Military Central Hospital
3 Hanoi Oncology Hospital

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Abstract

Objectives: to evaluate results of afatinib (Giotrif) for brain metastasis in EGFR mutated non-small cell lung cancer. Patients and Methods: A retrospective study, from January 2019 to December 2022, we enrolled 80 EGFR mutated non-small cell lung cancer patients with brain metastasis. All patients were treated afatinib (Giotrif) 150mg/day.  We assessed response rate and progression free survival. Results: Clinical characteristics: The proportion of female patients 47.5%; non-smokers 56.3%; 37.5% of patients have neurological symptoms; Patients with poor personal status ECOG ≥ 2 accounted for 11.3%. Brain metastases ≤ 3 foci accounted for 73.7%; whole brain radiation accounted for 23.8%. 36.3% of patients were given the initial dose of 40mg. Exon 19 mutations account for 45%; uncommon mutations account for 26.3%. Efficacy: Overall response rate of brain metastasis was 63,8% and disease control rate was 88,2%. Median of progession free survival was 18,5 months (min: 2,3; max: 42,4) and PFS at 24 month was 46,8%. Progession-free survival of brain metastasis was16,1 months. PFS for brain metastasis at 24 month was 38,9%. Conclusion: Afatinib is an optional treatment for brain metastasis in EGFR mutated non-small cell lung cancer, with hight disease control rate and prolonged progession free survival.

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References

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