PMID- 30366938 OWN - NLM STAT- MEDLINE DCOM- 20190703 LR - 20190703 IS - 1557-3265 (Electronic) IS - 1078-0432 (Linking) VI - 25 IP - 8 DP - 2019 Apr 15 TI - A Multicenter Phase II Study of AMG 337 in Patients with MET-Amplified Gastric/Gastroesophageal Junction/Esophageal Adenocarcinoma and Other MET-Amplified Solid Tumors. PG - 2414-2423 LID - 10.1158/1078-0432.CCR-18-1337 [doi] AB - PURPOSE: MET gene amplification is associated with poor prognosis in gastric/gastroesophageal junction/esophageal (G/GEJ/E) cancers. We determined antitumor activity, safety, and pharmacokinetics of the small-molecule MET inhibitor AMG 337 in MET-amplified G/GEJ/E adenocarcinoma or other solid tumors.Patients and Methods: In this phase II, single-arm study, adults with MET-amplified G/GEJ/E adenocarcinoma (cohort 1) or other MET-amplified solid tumors (cohort 2) received AMG 337 300 mg/day orally in 28-day cycles. The primary endpoint was objective response rate (ORR; cohort 1). Secondary endpoints included ORR (cohort 2), progression-free survival (PFS), overall survival (OS), and safety. RESULTS: Of 2101 patients screened for MET amplification, 132 were MET-amplified and 60 were enrolled: 45 in cohort 1, and 15 in cohort 2. Fifty-six patients (97%) had metastatic disease; 57 had prior lines of therapy (1 prior line, 29%; >/=2 prior lines, 69%). A protocol-permitted review showed efficacy that was lower-than-expected based on preliminary data from a first-in-human study, and enrollment was stopped. Fifty-eight patients received >/=1 AMG 337 dose. ORR in cohort 1 was 18% (8 partial responses). No responses were observed in cohort 2. Of 54 evaluable patients, median (95% CI) PFS and OS were 3.4 (2.2-5.0) and 7.9 (4.8-10.9) months, respectively. The most frequent adverse events (AEs) were headache (60%), nausea (38%), vomiting (38%), and abdominal pain, decreased appetite, and peripheral edema (33% each); 71% had grade >/=3 AEs and 59% had serious AEs. CONCLUSIONS: AMG 337 showed antitumor activity in MET-amplified G/GEJ/E adenocarcinoma but not in MET-amplified non-small-cell lung cancer.See related commentary by Ma, p. 2375. CI - (c)2018 American Association for Cancer Research. FAU - Van Cutsem, Eric AU - Van Cutsem E AD - Department of Digestive Oncology, University Hospitals Gasthuisberg, Leuven, and KU Leuven, Leuven, Belgium. eric.vancutsem@uzleuven.be. FAU - Karaszewska, Boguslawa AU - Karaszewska B AD - Department of Oncology, Przychodnia Lekarska NZOZ KOMED, Konin, Poland. FAU - Kang, Yoon-Koo AU - Kang YK AD - Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea. FAU - Chung, Hyun Cheol AU - Chung HC AD - Department of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea. FAU - Shankaran, Veena AU - Shankaran V AD - Division of Medical Oncology, University of Washington, Seattle, Washington. FAU - Siena, Salvatore AU - Siena S AUID- ORCID: 0000-0002-2681-2846 AD - Department of Hematology and Oncology, Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda and Dipartimento di Oncologia and Emato-Oncologia, Universita degli Studi di Milano, Milan, Italy. FAU - Go, Ning F AU - Go NF AD - Clinical Biomarkers and Diagnostics, Amgen Inc., Thousand Oaks, California. FAU - Yang, Hui AU - Yang H AUID- ORCID: 0000-0002-5088-046X AD - Global Biostatistical Sciences, Amgen Inc., Thousand Oaks, California. FAU - Schupp, Marco AU - Schupp M AD - Global Development, Amgen (Europe) GmbH, Zug, Switzerland. FAU - Cunningham, David AU - Cunningham D AD - Department of Medicine, Royal Marsden Hospital, London, United Kingdom. LA - eng PT - Journal Article DEP - 20181026 PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (AMG 337) RN - 0 (Pyridones) RN - 0 (Triazoles) RN - U3P01618RT (Fluorouracil) SB - IM CIN - Clin Cancer Res. 2019 Apr 15;25(8):2375-2378. PMID: 30770350 MH - *Adenocarcinoma MH - Adult MH - Antineoplastic Combined Chemotherapy Protocols MH - *Carcinoma, Non-Small-Cell Lung MH - Disease-Free Survival MH - Esophagogastric Junction MH - Fluorouracil MH - Humans MH - *Lung Neoplasms MH - Pyridones MH - *Stomach Neoplasms MH - Triazoles EDAT- 2018/10/28 06:00 MHDA- 2019/07/04 06:00 CRDT- 2018/10/28 06:00 PHST- 2018/04/30 00:00 [received] PHST- 2018/09/26 00:00 [revised] PHST- 2018/10/22 00:00 [accepted] PHST- 2018/10/28 06:00 [pubmed] PHST- 2019/07/04 06:00 [medline] PHST- 2018/10/28 06:00 [entrez] AID - 1078-0432.CCR-18-1337 [pii] AID - 10.1158/1078-0432.CCR-18-1337 [doi] PST - ppublish SO - Clin Cancer Res. 2019 Apr 15;25(8):2414-2423. doi: 10.1158/1078-0432.CCR-18-1337. Epub 2018 Oct 26.