Laksmi Wulandari and Anna Febriani and Farah Fatmawati and Gatot Soegiarto (2018) Evaluation of Patients with Lung Cancer Treated with Epidermal Growth Factor Receptor–Tyrosine Kinase Inhibitor. Asian Journal of Oncology, 4 (2). pp. 48-53. ISSN 2454-6798

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Abstract

Epidermal growth factor receptor–tyrosine kinase inhibitor (EGFR-TKI) is currently the standard therapy for EGFR-mutated non–small cell lung cancer (NSCLC). Gefitinib is the first EGFR-TKI marketed in Indonesia and has been used since 2012 in Dr. Soetomo General Hospital, a tertiary hospital in Surabaya, East Java, Indonesia. Although the drug had shown some positive results, the overall treatment outcome for Indonesian patients has not been reported yet. The aim of the study is to evaluate the progression-free survival (PFS), overall survival (OS), and subjective response of gefitinib as first-line treatment in advanced EGFR-mutated NSCLC patients in Dr. Soetomo General Hospital. This retrospective study includes all eligible patients treated from 2013 to 2016. Demographic data, performance status, tumor histopathologic types, treatment response, and adverse effects (AEs) during the treatment course were collected from patient's medical records. Objective response was based on RECIST 1.1. Quality of life was assessed using Eq. 5D questionnaire. From evaluable data of 63 patients, median PFS was 8.3 months (95% confidence interval [CI: 6.50–10.2) with median OS of 16 months (95% CI: 11.9–20.2). Eq. 5D scores were decreased in 21 (33.3%) patients, stable in 22 (34.9%), and increased in 20 (31.7%). The most common side effects were itchy skin rash in 52 (82%) patients and diarrhea in 29 (46%). Gefitinib as first-line therapy provides a good objective response and is generally well tolerated in patients with EGFR-mutated NSCLC in Dr. Soetomo General Hospital.

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