PMID- 30284706 OWN - NLM STAT- MEDLINE DCOM- 20190919 LR - 20190919 IS - 1776-260X (Electronic) IS - 1776-2596 (Linking) VI - 13 IP - 5 DP - 2018 Oct TI - EGFR Amplification and Sensitizing Mutations Correlate with Survival in Lung Adenocarcinoma Patients Treated with Erlotinib (MutP-CLICaP). PG - 621-629 LID - 10.1007/s11523-018-0594-x [doi] AB - BACKGROUND: Non-small cell lung cancer (NSCLC) has a 5-year survival of 5-16%. Epidermal growth factor receptor (EGFR) mutations, in most cases, confer sensitivity to EGFR tyrosine kinase inhibitor (TKI) therapy. Nonetheless, it is still unclear why clinical outcomes vary among patients with identical EGFR mutations. The amplification of the EGFR gene (EGFRamp) may play a significant role. OBJECTIVE: Compare the complete (CR) and partial response (PR) rates, overall survival (OS), and progression-free survival (PFS) in Hispanic patients with lung adenocarcinoma treated with erlotinib with EGFR mutations (L858R or exon 19 deletion [Del19]) with and without concomitant EGFRamp. PATIENTS AND METHODS: Seventy-two EGFR-positive lung adenocarcinoma patients of Hispanic origin, who underwent first-line treatment with erlotinib, were evaluated for EGFRamp by fluorescence in situ hybridization (FISH). The clinical outcomes were analyzed according to EGFR mutations and EGFRamp status. RESULTS: 30.6% of samples showed EGFRamp, more frequently present in patients with Del19 (p = 0.05). Patients with EGFRamp had a longer PFS (in months) [(28.5, 95% CI 22.3-34.6) vs. (11.0, 95% CI 8.2-16.7); p = 0.002] and OS [(37.8, 95% CI 30.9-44.7) vs. (27.1, 95% CI 12.8-41.3); p = 0.009] than those without. EGFRamp significantly influenced the response to erlotinib (p = 0.0001). EGFRamp+/Del19 had a longer OS, 37.8 (95% CI 31.0-44.6), compared to EGFRamp+/L8585R, 27.5 (95% CI 12.4-42.5) (p < 0.001) and longer PFS (p = 0.043). CONCLUSION: Among Hispanic patients, EGFRamp was present in 30% of patients with EGFR mutations. EGFR mutations and EGFRamp are associated with better OS, PFS, CR, and PR to erlotinib and, hence, could aid in the correct selection of patients that benefit from EGFR TKI treatment. FAU - Ruiz-Patino, Alejandro AU - Ruiz-Patino A AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. FAU - Castro, Christian David AU - Castro CD AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. FAU - Ricaurte, Luisa Maria AU - Ricaurte LM AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. FAU - Cardona, Andres F AU - Cardona AF AUID- ORCID: 0000-0003-3525-4126 AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. andres.cardona@clinicadelcountry.com. AD - Clinical and Translational Oncology Group, Institute of Oncology, Clinica del Country, Bogota, Colombia. andres.cardona@clinicadelcountry.com. AD - Molecular Oncology and Biology Systems Research Group (FOX-G), Universidad El Bosque, Bogota, Colombia. andres.cardona@clinicadelcountry.com. FAU - Rojas, Leonardo AU - Rojas L AD - Clinical and Translational Oncology Group, Institute of Oncology, Clinica del Country, Bogota, Colombia. AD - Clinical Oncology Department, Clinica Colsanitas, Bogota, Colombia. FAU - Zatarain-Barron, Zyanya Lucia AU - Zatarain-Barron ZL AD - Thoracic Oncology Unit and Laboratory of Personalized Medicine, Instituto Nacional de Cancerologia (INCan), Mexico City, Mexico. FAU - Wills, Beatriz AU - Wills B AD - Internal Medicine Department, Johns Hopkins University, Baltimore, MD, USA. FAU - Reguart, Noemi AU - Reguart N AD - Medical Oncology Department, Hospital Clinic, Barcelona, Spain. FAU - Carranza, Hernan AU - Carranza H AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. AD - Clinical and Translational Oncology Group, Institute of Oncology, Clinica del Country, Bogota, Colombia. FAU - Vargas, Carlos AU - Vargas C AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. AD - Clinical and Translational Oncology Group, Institute of Oncology, Clinica del Country, Bogota, Colombia. FAU - Otero, Jorge AU - Otero J AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. AD - Clinical and Translational Oncology Group, Institute of Oncology, Clinica del Country, Bogota, Colombia. FAU - Corrales, Luis AU - Corrales L AD - Clinical Oncology Department, Hospital San Juan de Dios, San Jose, Costa Rica. FAU - Martin, Claudio AU - Martin C AD - Thoracic Oncology Unit, Alexander Fleming Institute, Buenos Aires, Argentina. FAU - Archila, Pilar AU - Archila P AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. FAU - Rodriguez, July AU - Rodriguez J AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. FAU - Avila, Jenny AU - Avila J AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. FAU - Bravo, Melissa AU - Bravo M AD - Foundation for Clinical and Applied Cancer Research (FICMAC), Calle 116 No. 9-72, c. 318, Bogota, Colombia. FAU - Pino, Luis Eduardo AU - Pino LE AD - Medical Oncology Group, Fundacion Santa Fe de Bogota, Bogota, Colombia. FAU - Rosell, Rafael AU - Rosell R AD - Cancer Biology and Precision Medicine Program, Catalan Institute of Oncology, Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain. FAU - Arrieta, Oscar AU - Arrieta O AD - Thoracic Oncology Unit and Laboratory of Personalized Medicine, Instituto Nacional de Cancerologia (INCan), Mexico City, Mexico. CN - Latin-American Consortium for the Investigation of Lung Cancer (CLICaP) LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - France TA - Target Oncol JT - Targeted oncology JID - 101270595 RN - 0 (Antineoplastic Agents) RN - DA87705X9K (Erlotinib Hydrochloride) RN - EC 2.7.10.1 (EGFR protein, human) RN - EC 2.7.10.1 (ErbB Receptors) SB - IM MH - Adenocarcinoma of Lung/*drug therapy/enzymology/genetics/pathology MH - Adult MH - Aged MH - Aged, 80 and over MH - Antineoplastic Agents/*therapeutic use MH - ErbB Receptors/antagonists & inhibitors/genetics MH - Erlotinib Hydrochloride/*therapeutic use MH - Female MH - Gene Amplification MH - Humans MH - Lung Neoplasms/*drug therapy/enzymology/genetics/pathology MH - Male MH - Middle Aged MH - *Mutation MH - Survival Analysis MH - Young Adult EDAT- 2018/10/05 06:00 MHDA- 2019/09/20 06:00 CRDT- 2018/10/05 06:00 PHST- 2018/10/05 06:00 [pubmed] PHST- 2019/09/20 06:00 [medline] PHST- 2018/10/05 06:00 [entrez] AID - 10.1007/s11523-018-0594-x [pii] AID - 10.1007/s11523-018-0594-x [doi] PST - ppublish SO - Target Oncol. 2018 Oct;13(5):621-629. doi: 10.1007/s11523-018-0594-x.