PMID- 34307179 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220425 IS - 2234-943X (Print) IS - 2234-943X (Electronic) IS - 2234-943X (Linking) VI - 11 DP - 2021 TI - Afatinib in EGFR TKI-Naive Patients with Locally Advanced or Metastatic EGFR Mutation-Positive Non-Small Cell Lung Cancer: A Pooled Analysis of Three Phase IIIb Studies. PG - 709877 LID - 10.3389/fonc.2021.709877 [doi] LID - 709877 AB - BACKGROUND: Afatinib is approved for first-line treatment of patients with epidermal growth factor receptor mutation-positive (EGFRm+) non-small-cell lung cancer (NSCLC). Here, we report findings from a combined analysis of three phase IIIb studies of afatinib in EGFR tyrosine kinase inhibitor (TKI)-naive patients. METHODS: EGFR-TKI-naive patients with EGFRm+ NSCLC received afatinib 40 mg/day. Dose reductions were permitted for adverse events (AEs). Efficacy endpoints included progression-free survival (PFS), time to symptomatic progression (TTSP), and tumor response. Subgroup analyses were performed by Eastern Cooperative Oncology Group performance status (ECOG PS), presence of brain metastasis, age and common/uncommon EGFR mutations (plus other factors). RESULTS: 1108 patients were treated. Median age was 61 years (range, 25-89); 19.2% had baseline brain metastases, 4.4% had ECOG PS >/=2, and 17.9% had tumors harboring uncommon mutations. Treatment-related AEs (TRAEs) were reported in 97.2%, most commonly diarrhea and rash. 41.6% had AEs leading to dose reduction. Median PFS was 13.0 months [95% confidence interval (CI): 12.0-13.8]; median TTSP was 14.8 months (95% CI: 13.9-16.1). Objective response rate (ORR) was 55.0%. Age, presence of baseline brain metastases, major (G719X, L861Q, S768I) or compound uncommon mutations had little/no effect on PFS, TTSP, or ORR, while outcomes were poorer in patients with ECOG PS 2 or exon 20 insertion/T790M mutations. CONCLUSIONS: Afatinib was tolerable with no new safety signals. Afatinib demonstrated encouraging efficacy in a broad patient population, including those with brain metastases or uncommon EGFR mutations. CI - Copyright (c) 2021 Passaro, de Marinis, Tu, Laktionov, Feng, Poltoratskiy, Zhao, Tan, Gottfried, Lee, Kowalski, Yang, Srinivasa, Clementi, Jalikop, Huang, Cseh, Park and Wu. FAU - Passaro, Antonio AU - Passaro A AD - Division of Thoracic Oncology, IEO, European Institute of Oncology IRCCS, Milan, Italy. FAU - de Marinis, Filippo AU - de Marinis F AD - Division of Thoracic Oncology, IEO, European Institute of Oncology IRCCS, Milan, Italy. FAU - Tu, Hai-Yan AU - Tu HY AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China. FAU - Laktionov, Konstantin K AU - Laktionov KK AD - Russian Academy of Medical Sciences, Moscow, Russia. FAU - Feng, Jifeng AU - Feng J AD - Jiangsu Provincial Tumor Hospital, Nanjing, China. FAU - Poltoratskiy, Artem AU - Poltoratskiy A AD - Petrov Research Institute of Oncology, St Petersburg, Russia. FAU - Zhao, Jun AU - Zhao J AD - Peking University Cancer Hospital & Institute, Beijing, China. FAU - Tan, Eng Huat AU - Tan EH AD - National Cancer Centre, Singapore, Singapore. FAU - Gottfried, Maya AU - Gottfried M AD - Tel Aviv University, Tel Aviv, Israel. FAU - Lee, Victor AU - Lee V AD - Department of Clinical Oncology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China. FAU - Kowalski, Dariusz AU - Kowalski D AD - Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland. FAU - Yang, Cheng Ta AU - Yang CT AD - Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan. FAU - Srinivasa, B J AU - Srinivasa BJ AD - HCG Hospital, Bangalore, India. FAU - Clementi, Laura AU - Clementi L AD - Boehringer Ingelheim Italia S.p.A., Milan, Italy. FAU - Jalikop, Tejaswini AU - Jalikop T AD - Syneos Health, Raleigh, NC, United States. FAU - Huang, Dennis Chin Lun AU - Huang DCL AD - Boehringer Ingelheim Taiwan Limited, Taipei, Taiwan. FAU - Cseh, Agnieszka AU - Cseh A AD - Boehringer Ingelheim International GmbH, Ingelheim am Rhein, Germany. FAU - Park, Keunchil AU - Park K AD - Division of Hematology Oncology, Samsung Medical Center Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Wu, Yi-Long AU - Wu YL AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China. LA - eng PT - Journal Article DEP - 20210709 PL - Switzerland TA - Front Oncol JT - Frontiers in oncology JID - 101568867 PMC - PMC8298067 OTO - NOTNLM OT - EGFR TKI-naive OT - EGFR mutation OT - NSCLC OT - afatinib OT - real world OT - safety COIS- LC is an employee of Boehringer Ingelheim Italia S.p.A. TJ is an employee of Syneos Health. DCLH is an employee of Boehringer Ingelheim Taiwan Limited. AC is an employee of Boehringer Ingelheim International GmbH. APa received honoraria for consulting, advisory role or lectures from AstraZeneca, Agilent/Dako, Boehringer Ingelheim, Bristol-Myers Squibb, Eli Lilly, Jansenn, Merck Sharp & Dohme, Pfizer and Roche Genentech. FdM has received honoraria or consulting fees from AstraZeneca, Bristol-Myers Squibb, Merck Sharp & Dohme and Roche. KKL reports receiving advisory council or committee fees from Boehringer-Ingelheim, Bristol Myers Squibb, Merck Sharp & Dohme, Merck, Amgen, Roche, Takeda, Pfizer; and grants or funds from Boehringer Ingelheim, Bristol Myers Squibb, Merck Sharp & Dohme, Merck, Amgen, Roche, Takeda, Pfizer. VL reports receiving honoraria from AstraZeneca, Eli Lilly, Novartis, Roche, Merck Sharp & Dohme. DK reports receiving advisory council or committee fees from Boehringer Ingelheim, Bristol Myers Squibb, Merck Sharp & Dohme, Merck, Amgen, Roche-Genentech, Takeda, Pfizer; and consulting fees from Boehringer Ingelheim, Bristol Myers Squibb, Merck Sharp & Dohme, Merck, Amgen, Roche-Genentech, Pfizer. KP reports receiving personal fees from Amgen, Astellas, AstraZeneca, Boehringer Ingelheim, Clovis, Daiichi Sankyo, Eli Lilly, Hanmi, Kyowa Hakko Kirin, Incyte, LOXO, Merck KGaA, Merck Sharp & Dohme, Ono, Novartis, and Roche; and research funding from AstraZeneca and Merck Sharp & Dohme. Y-LW reports receiving honoraria from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, Eli Lilly, Merck Sharp & Dohme, Pfizer, Sanofi, Roche; and grants/patents received or pending from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The authors declare that this study received funding from Boehringer Ingelheim International GmbH. The study sponsor participated in the design of the studies, the collection, analysis, and interpretation of the data, writing this article, and the decision to submit the article for publication. EDAT- 2021/07/27 06:00 MHDA- 2021/07/27 06:01 PMCR- 2021/01/01 CRDT- 2021/07/26 06:37 PHST- 2021/05/14 00:00 [received] PHST- 2021/06/21 00:00 [accepted] PHST- 2021/07/26 06:37 [entrez] PHST- 2021/07/27 06:00 [pubmed] PHST- 2021/07/27 06:01 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fonc.2021.709877 [doi] PST - epublish SO - Front Oncol. 2021 Jul 9;11:709877. doi: 10.3389/fonc.2021.709877. eCollection 2021.