Study of IMC-1121B (Ramucirumab) With Best Supportive Care in Participants With Gastric Cancer and Adenocarcinoma

Placebo-controlled, multicenter Phase 3 study of participants with metastatic gastric cancer \[including adenocarcinomas of the gastroesophageal junction (GEJ)\] and disease progression on standard first-line chemotherapeutic regimens. Participants will be randomized on a 2:1 basis to receive best supportive care plus ramucirumab administered every 2 weeks or best supportive care plus placebo administered every 2 weeks, respectively. Participants will undergo radiographic assessment of disease status every 6 weeks. Participant will be treated until there is evidence of progressive disease, toxicity requiring cessation, withdrawal of consent, or until other withdrawal criteria are met. Approximately 348 participants, with histologically- or cytologically-confirmed, metastatic gastric or GEJ adenocarcinoma, and radiographically measurable disease as defined by the Response Evaluation Criteria in Solid Tumors or evaluable, nonmeasurable disease, will be randomized. Participants will be enrolled from approximately 250 study centers in North America, South America, Central America, Asia, Australia, New Zealand, and Europe.