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EP1.01 - Advanced NSCLC (ID 150)
- Event: WCLC 2019
- Type: E-Poster Viewing in the Exhibit Hall
- Track: Advanced NSCLC
- Presentations: 1
- Now Available
- Coordinates: 9/08/2019, 08:00 - 18:00, Exhibit Hall
EP1.01-40 - Outcome of EGFR-Mutated and Non-Mutated Lung Adenocarcinoma Receiving Standard Therapy - A Nepalese Cohort (Now Available) (ID 941)
08:00 - 18:00 | Author(s): Ambuj Karn
Lung cancer represents major health challenges worldwide including Nepal where patients (pts) often present in advanced stage. The purpose of this study was to compare the objective response rates (ORR), progression free survival (PFS), and quality of life (QoL) of EGFR-mutated (EGFR-mut) and non-mutated (EGFR-wt) pts with adenocarcinoma of the lung (ACL) receiving standard therapy.Method
An IRB approved comparative analytical study was performed in pts with ACL. Newly diagnosed stage IV ACL pts were enrolled and ORR, PFS and QoL was compared between EGFR-mut and EGFR-wt (33 pts in each arm) pts. EGFR-mut pts were given gefitinib and EGFR-wt pts were given systemic chemotherapy (pemetrexed/cisplatin or cisplatin/etoposide). Response evaluation was done using RECIST criteria in both arms. PFS was calculated from the date of starting treatment to the date of progression and QoL was evaluated using EORTC QLQ-C30 (version 3) questionnaire and compared between two arms. Adverse effects were assessed using CTCAE criteria. Pts were followed for 1 year.Result
Complete response (CR) was achieved in 9.1% vs 3.0 % (p=0.46), and ORR was 27.3% vs 15.2% (p=0.23) in EGFR-mut vs EGFR-wt. The median PFS was 11 and 9 months for EGFR-mut and EGFR-wt respectively (p = 0.045). The mean score of global health status from EORTC QLQ-C30 was 68.1 vs 61.6 in EGFR-mut pts vs EGFR-wt pts (p = 0.036). Skin toxicities were more common in pts receiving gefitinib. One pt had grade 3 skin toxicity. Febrile neutropenia and peripheral neuropathy (either grade 1 or grade 2) were the most common toxicities in pts receiving standard chemotherapy.
EGFR-mut pts treated with EGFR-TKI had improved ORR, PFS and QoL in comparison with EGFR-wt pts treated with chemotherapy. EGFR-mutational analysis and EGFR-directed therapy is feasible and provides survival benefit, also in developing countries as Nepal.