{"groups":[{"description":"Participants received Dose A intravenously (IV) on Days 1, 8, and 15 in each 28-day cycle. In addition, participants received a fixed dose of 25 mg oral lenalidomide on Days 1 through 21 and a fixed dose of 40 mg oral dexamethasone on Days 1, 8, 15, and 22 of each 28-day cycle.","id":"FG000","title":"CEP-18770 Dose A"},{"description":"Participants received CEP-18770 Dose B IV on Days 1, 8, and 15 in each 28-day cycle. In addition, participants received a fixed dose of 25 mg oral lenalidomide on Days 1 through 21 and a fixed dose of 40 mg oral dexamethasone on Days 1, 8, 15, and 22 of each 28-day cycle.","id":"FG001","title":"CEP-18770 Dose B"},{"description":"Participants received CEP-18770 Dose C IV on Days 1, 8, and 15 in each 28-day cycle. In addition, participants received a fixed dose of 25 mg oral lenalidomide on Days 1 through 21 and a fixed dose of 40 mg oral dexamethasone on Days 1, 8, 15, and 22 of each 28-day cycle.","id":"FG002","title":"CEP-18770 Dose C"}],"periods":[{"dropWithdraws":[{"reasons":[{"groupId":"FG000","numSubjects":"3"},{"groupId":"FG001","numSubjects":"1"},{"groupId":"FG002","numSubjects":"0"}],"type":"Adverse Event"},{"reasons":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"1"},{"groupId":"FG002","numSubjects":"0"}],"type":"Withdrawal by Subject"},{"reasons":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"1"},{"groupId":"FG002","numSubjects":"1"}],"type":"Disease progression"}],"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"3"},{"groupId":"FG001","numSubjects":"5"},{"groupId":"FG002","numSubjects":"3"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"3"},{"groupId":"FG001","numSubjects":"5"},{"groupId":"FG002","numSubjects":"3"}],"type":"Received at Least 1 Dose of Study Drug"},{"achievements":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"2"},{"groupId":"FG002","numSubjects":"2"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"3"},{"groupId":"FG001","numSubjects":"3"},{"groupId":"FG002","numSubjects":"1"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}]}