D Kelly1, L Mc Sorley2, E O'Shea2, E Mc Carthy2, S Bowe2, C Brady2, J Sui2, M A Dawod2, O O'Brien3, D Graham4, J McCarthy3, L Burke3, D Power2, S O'Reilly2, R M Bambury2, D O Mahony2. 1. Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland. deirdre.kelly.2108@gmail.com. 2. Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland. 3. Department of Pathology, Cork University Hospital, Cork, Ireland. 4. Department of Respiratory Medicine, Cork University Hospital, Cork, Ireland.
Abstract
BACKGROUND: EGFR mutated lung cancer represents a subgroup with distinct clinical presentations, prognosis, and management requirements. We investigated the survival, prognostic factors, and real-world treatment of NSCLC patients with EGFR mutation in clinical practice. METHODS: A retrospective review of all specimens sent for EGFR analysis from December 2009 to September 2015 was performed. Patient demographics, specimen type, EGFR mutation status/type, stage at diagnosis, treatment, response rate, and survival data were recorded. RESULTS: 27/334 (8%) patient specimens sent for EGFR testing tested positive for a sensitising EGFR mutation. The median age was 65 years (40-85 years). Exon 19 deletion represented the most commonly detected alteration, accounting for 39% (n = 11). First-line treatment for those with Exon 18, 19, or 21 alterations (n = 24) was with an EGFR tyrosine kinase inhibitor (TKI) in 79% (n = 19). Objective response rate among these patients was 74% and median duration of response was 13 months (range 7-35 months). CONCLUSION: The incidence of EGFR mutation in our cohort of NSCLC is 9% which is consistent with mutation incidence reported in other countries. The rate of EGFR mutation in our population is slightly below that reported internationally, but treatment outcomes are consistent with published data. Real-world patient data have important contributions to make with regard to quality measurement, incorporating patient experience into guidelines and identifying safety signals.
BACKGROUND:EGFR mutated lung cancer represents a subgroup with distinct clinical presentations, prognosis, and management requirements. We investigated the survival, prognostic factors, and real-world treatment of NSCLCpatients with EGFR mutation in clinical practice. METHODS: A retrospective review of all specimens sent for EGFR analysis from December 2009 to September 2015 was performed. Patient demographics, specimen type, EGFR mutation status/type, stage at diagnosis, treatment, response rate, and survival data were recorded. RESULTS: 27/334 (8%) patient specimens sent for EGFR testing tested positive for a sensitising EGFR mutation. The median age was 65 years (40-85 years). Exon 19 deletion represented the most commonly detected alteration, accounting for 39% (n = 11). First-line treatment for those with Exon 18, 19, or 21 alterations (n = 24) was with an EGFR tyrosine kinase inhibitor (TKI) in 79% (n = 19). Objective response rate among these patients was 74% and median duration of response was 13 months (range 7-35 months). CONCLUSION: The incidence of EGFR mutation in our cohort of NSCLC is 9% which is consistent with mutation incidence reported in other countries. The rate of EGFR mutation in our population is slightly below that reported internationally, but treatment outcomes are consistent with published data. Real-world patient data have important contributions to make with regard to quality measurement, incorporating patient experience into guidelines and identifying safety signals.
Authors: James Chih-Hsin Yang; Yi-Long Wu; Martin Schuler; Martin Sebastian; Sanjay Popat; Nobuyuki Yamamoto; Caicun Zhou; Cheng-Ping Hu; Kenneth O'Byrne; Jifeng Feng; Shun Lu; Yunchao Huang; Sarayut L Geater; Kye Young Lee; Chun-Ming Tsai; Vera Gorbunova; Vera Hirsh; Jaafar Bennouna; Sergey Orlov; Tony Mok; Michael Boyer; Wu-Chou Su; Ki Hyeong Lee; Terufumi Kato; Dan Massey; Mehdi Shahidi; Victoria Zazulina; Lecia V Sequist Journal: Lancet Oncol Date: 2015-01-12 Impact factor: 41.316