Zev A. Wainberg, David Ferry, Ravindranath Patel, Denis Pezet, Elzbieta Wojcik, Kazumasa Fujitani, Vera Gorbounova, Fernando Cabanillas, Bela Piko, Fidel David Huitzil Melendez, Agnes Ruzsa, Jean-Marc Phelip, Madhuri Bajaj, J.T. Beck, Elizabeth Won, Alexander Luft, Sara Lonardi, Peter C. Enzinger, Maen A. Hussein, Bohuslav Melichar, Daisuke Sakai, Angel Gomez Villanueva, A Madi, Georgina Garnica Jaliffe, Carlo Barone, Guillermo Mendez, Marina N. Nechaeva, György Bodoky, Hubert Ayala, Francesco Di Costanzo, Julien Taieb, David H. Ilson, Leslie Samuel, Ronald L. Burkes, Mayukh Das, Marc Van den Eynde, Charles S. Fuchs, Scott M. Berry, Ji Lin, Shuichi Hironaka, Christina Maria Gomez, Thierry Alcindor, Eric Van Cutsem, James A. Jr Reeves, Katriina Peltola, Timothy R. Asmis, Christine Brezden-Masley, Udit Verma, Javier Gallego Plazas, Isabelle Sinapi, Peter Bono, Nozomu Machida, Cynthia Coo Chua, Francisco Javier Ramirez Godinez, Annemieke Cats, Raija Kallio, Alex Beny, Hiroki Hara, Cardellino Giovanni Gerardo, Diego Lucas Kaen, Wasat Mansoor, Miguel Angel Escudero, Andràs Csilla, Akihito Tsuji, Ralf-Dieter Hofheinz, Jana Pribylova, Marianne Nordsmark, Daniel Dammrich, Maria Alejandra Bartoli, Joanna Pikiel, Robert Andrew Dichmann, Maria Di Bartolomeo, Ricardo Villalobos Valencia, Jill Lacy, Raymond Jang, Carlos Alberto Hernandez, Giuseppe Aprile, Nina A. Karaseva, Jonathan Wadsley, Ian Chau, Svetlana Protsenko, Jana Prausová, Maria Błasińska-Morawiec, Salah-Eddin Al-Batran, Hélène Senellart, Stephen Leong, Francisco Gutiérrez Delgado, Johanna C. Bendell, Laurent Mineur, M.I. Grootscholten, Hugo Ford, Russell D. Petty, Laura Visa Turmo, Roberto Carlesi, Hector Velez-Cortez, Maria Alsina, Jiri Petera, Seigo Yukisawa, Federico Longo Munoz, Mette Karen Yilmaz, Pilar Garcia Alfonso, Baruch Brenner, Irfan Firdaus, William E. Lawler, Sylvie Lorenzen, Moustapha Tehfe, Kohei Shitara, Naotoshi Sugimoto, Karen Geboes, A.J. Ten Tije, Walid Shaib, Shigenori Kadowaki, Nicolas Robert Maisey, H.M.W. Van Laarhoven, Radka Obermannova, F.L.G. Erdkamp, Rubén Dario Kowalyszyn, Joanna Wojcik-Tomaszewska, Peter Istvan Acs, Crystal S. Denlinger, Ravit Geva, Srinivasan Madhusudan, Brian Anthony DiCarlo, Ferdinando De Vita, Alejandro Molina Alavez, Gunnar Folprecht, Kensei Yamaguchi, Moses Sundar Raj, Judit Kocsis, Susanna Hegewisch-Becker, Joana Vidal Barrull, Daisuke Takahari, Tomasz Sarosiek, Luis Fein, Mohamed Hebbar, Tibor Csoszi, Manish A. Shah, Alfredo Falcone, Hugo Hool, Michel Ducreux, Per Pfeiffer, Einat Shacham-Shmueli, Howard J. Lim, Taito Esaki, Oncology, CCA - Imaging and biomarkers, CCA - Cancer Treatment and Quality of Life, and AGEM - Re-generation and cancer of the digestive system
Summary Background VEGF and VEGF receptor 2 (VEGFR-2)-mediated signalling and angiogenesis can contribute to the pathogenesis and progression of gastric cancer. We aimed to assess whether the addition of ramucirumab, a VEGFR-2 antagonist monoclonal antibody, to first-line chemotherapy improves outcomes in patients with metastatic gastric or gastro-oesophageal junction adenocarcinoma. Methods For this double-blind, randomised, placebo-controlled, phase 3 trial done at 126 centres in 20 countries, we recruited patients aged 18 years or older with metastatic, HER2-negative gastric or gastro-oesophageal junction adenocarcinoma, an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1, and adequate organ function. Eligible patients were randomly assigned (1:1) with an interactive web response system to receive cisplatin (80 mg/m2, on the first day) plus capecitabine (1000 mg/m2, twice daily for 14 days), every 21 days, and either ramucirumab (8 mg/kg) or placebo on days 1 and 8, every 21 days. 5-Fluorouracil (800 mg/m2 intravenous infusion on days 1–5) was permitted in patients unable to take capecitabine. The primary endpoint was investigator-assessed progression-free survival, analysed by intention to treat in the first 508 patients. We did a sensitivity analysis of the primary endpoint, including a central review of CT scans. Overall survival was a key secondary endpoint. This study is registered with ClinicalTrials.gov, number NCT02314117. Findings Between Jan 28, 2015, and Sept 16, 2016, 645 patients were randomly assigned to receive ramucirumab plus fluoropyrimidine and cisplatin (n=326) or placebo plus fluoropyrimidine and cisplatin (n=319). Investigator-assessed progression-free survival was significantly longer in the ramucirumab group than the placebo group (hazard ratio [HR] 0·753, 95% CI 0·607–0·935, p=0·0106; median progression-free survival 5·7 months [5·5–6·5] vs 5·4 months [4·5–5·7]). A sensitivity analysis based on central independent review of the radiological images did not corroborate the investigator-assessed difference in progression-free survival (HR 0·961, 95% CI 0·768–1·203, p=0·74). There was no difference in overall survival between groups (0·962, 0·801–1·156, p=0·6757; median overall survival 11·2 months [9·9–11·9] in the ramucirumab group vs 10·7 months [9·5–11·9] in the placebo group). The most common grade 3–4 adverse events were neutropenia (85 [26%] of 323 patients in the ramucirumab group vs 85 [27%] of 315 in the placebo group), anaemia (39 [12%] vs 44 [14%]), and hypertension (32 [10%] vs 5 [2%]). The incidence of any-grade serious adverse events was 160 (50%) of 323 patients in the ramucirumab group and 149 (47%) of 315 patients in the placebo group. The most common serious adverse events were vomiting (14 [4%] in the ramucirumab group vs 21 [7%] in the placebo group) and diarrhoea (11 [3%] vs 19 [6%]). There were seven deaths in each group, either during study treatment or within 30 days of discontinuing study treatment, which were the result of treatment-related adverse events. In the ramucirumab group, these adverse events were acute kidney injury, cardiac arrest, gastric haemorrhage, peritonitis, pneumothorax, septic shock, and sudden death (n=1 of each). In the placebo group, these adverse events were cerebrovascular accident (n=1), multiple organ dysfunction syndrome (n=2), pulmonary embolism (n=2), sepsis (n=1), and small intestine perforation (n=1). Interpretation Although the primary analysis for progression-free survival was statistically significant, this outcome was not confirmed in a sensitivity analysis of progression-free survival by central independent review, and did not improve overall survival. Therefore, the addition of ramucirumab to cisplatin plus fluoropyrimidine chemotherapy is not recommended as first-line treatment for this patient population. Funding Eli Lilly and Company.