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Fuchs, Charles S, Dr Prof; Tomasek, Jiri, MD; Yong, Cho Jae, Prof; Dumitru, Filip, MD; Passalacqua, Rodolfo, MD; Goswami, Chanchal, Prof; Safran, Howard, Prof; dos Santos, Lucas Vieira, MD; Aprile, Giuseppe, MD; Ferry, David R, Prof; Melichar, Bohuslav, Prof; Tehfe, Mustapha, MD; Topuzov, Eldar, Prof; Zalcberg, John Raymond, Prof; Chau, Ian, MD; Campbell, William, Prof; Sivanandan, Choondal, MD; Pikiel, Joanna, MD; Koshiji, Minori, MD; Hsu, Yanzhi, PhD; Liepa, Astra M, PharmD; Gao, Ling, PhD; Schwartz, Jonathan D, MD; Tabernero, Josep, MD
The Lancet (British edition), 01/2014, Volume: 383, Issue: 9911Journal Article
Summary Background Vascular endothelial growth factor (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 ramucirumab, a monoclonal antibody VEGFR-2 antagonist, prolonged survival in patients with advanced gastric cancer. Methods We did an international, randomised, double-blind, placebo-controlled, phase 3 trial between Oct 6, 2009, and Jan 26, 2012, at 119 centres in 29 countries in North America, Central and South America, Europe, Asia, Australia, and Africa. Patients aged 24–87 years with advanced gastric or gastro-oesophageal junction adenocarcinoma and disease progression after first-line platinum-containing or fluoropyrimidine-containing chemotherapy were randomly assigned (2:1), via a central interactive voice-response system, to receive best supportive care plus either ramucirumab 8 mg/kg or placebo, intravenously once every 2 weeks. The study sponsor, participants, and investigators were masked to treatment assignment. The primary endpoint was overall survival. Analysis was by intention to treat. This trial is registered with ClinicalTrials.gov , number NCT00917384. Findings 355 patients were assigned to receive ramucirumab (n=238) or placebo (n=117). Median overall survival was 5·2 months (IQR 2·3–9·9) in patients in the ramucirumab group and 3·8 months (1·7–7·1) in those in the placebo group (hazard ratio HR 0·776, 95% CI 0·603–0·998; p=0·047). The survival benefit with ramucirumab remained unchanged after multivariable adjustment for other prognostic factors (multivariable HR 0·774, 0·605–0·991; p=0·042). Rates of hypertension were higher in the ramucirumab group than in the placebo group (38 16% vs nine 8%), whereas rates of other adverse events were mostly similar between groups (223 94% vs 101 88%). Five (2%) deaths in the ramucirumab group and two (2%) in the placebo group were considered to be related to study drug. Interpretation Ramucirumab is the first biological treatment given as a single drug that has survival benefits in patients with advanced gastric or gastro-oesophageal junction adenocarcinoma progressing after first-line chemotherapy. Our findings validate VEGFR-2 signalling as an important therapeutic target in advanced gastric cancer. Funding ImClone Systems.
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