Publication-only abstracts (abstract number preceded by an "e"), published in conjunction with the 2019 ASCO Annual Meeting but not presented at the Meeting, can be found online only.
Galician lung cancer group: Afatinib´s data as first-line treatment for elderly patients.
Metastatic Non-Small Cell Lung Cancer
Lung Cancer—Non-Small Cell Metastatic
2019 ASCO Annual Meeting
J Clin Oncol 37, 2019 (suppl; abstr e20662)
Author(s): Sara Agraso Busto, Vanesa Varela, Natalia Fernández Núñez, Jose-luis Firvida, Lucía Santomé, Francisco Javier Afonso, Cristina Azpitarte, Noemi De Dios Alvarez, Jorge Garcia, Begoña Campos Balea, Maria Carmen Areses Manrique, Diego Pereiro Corbacho, Gerardo Huidobro, Martin Lazaro Quintela, Joaquín Casal Rubio; Complejo Hospitalario Universitario de Vigo, Vigo, Spain; Complejo Hospitalario de Santiago de Compostela, Santiago De Compostela, Spain; Hospital Universitario Lucus Augusti, Lugo, Spain; Complejo Hospitalario Universitario de Ourense, Orense, Spain; Hospital Povisa, Vigo, Spain; Complejo Hospitalario Universitario de Ferrol, A Coruña, Spain; Complejo Hospitalario de Pontevedra, Pontevedra, Spain; Complejo Hospitalario Universitario de Santiago, Santiago De Compostela, Spain; Complejo Hospitalario Universitario de Ourense, Ourense, Spain; Complejo Hospitalario de VIGO, Vigo, Spain; Complexo Hospitalario Universitario de Vigo, Vigo, Spain
Background: There are scarcy data or studies on safety and efficacy of afatinib in elderly patients. Methods: Retrospective study on patients from differents hospitals in Galicia (Spain) diagnosed of metastasic lung adenocarcinoma with EGFR positive mutation who have received first line treatment with afatinib between July 2015 and September 2018 were included. Main objectives were to asses safety, dose reductions and as well as its effects on effectiveness of the treatment in patients 70 years old or older (elderly patients) comparing with data from patients under 70 years of age. Results: 45 patients were included in our analysis (33 women, 12 men). Median age was 71.2 years (39-91) with 24 patients (53.3%) being 70 years old or older. Common adverse events grade 3/4 were mucositis and skin toxicity (28.6% in patients under 70 years and 20.8% in elderly patients) and diarrhea (9.5% and 16.7% respectively). The dose was reduced in 47.6% patients under 70 vs 75% in elderly patients. Treatment was discontinued in 14.3% patients vs 20.8% patients respectively owing to adverse events. Overall response was 76% and 62.5% respectively. Disease control rates were 90.3% (95% CI: 96.7-83.8) and 83.3% (95% CI: 98.2-68.4) respectively. Median progression free survival (PFS) was 27 months (95% CI 14.8-39.1) and overall survival was not reached. By ages, median PFS was 20 months (95% CI: 7.4-32.5) vs not reached in elderly patients although being unable to demonstrate differences in progression-free survival between both groups. Conclusions: PFS was 20 months in people under 70 years vs not reached in elderly patients. Elderly patients need more treatment interruption or dose adjustments compared with younger patients, but this does not seem to impair safety and does not compromise effectiveness either.