{"groups":[{"description":"Participants received ofatumumab intravenously (IV) in Cycle 1 (defined as a treatment period of up to 4 weeks \\[Weeks (Wk.) 1 through 4\\]) (300 milligrams \\[mg\\] at Week 1 and 1000 mg at Weeks 2 through 4) and were followed up for 11 weeks (Weeks 5-16). After Week 16, during the Redosing Cycle (RC), participants who had Minor Response or stable disease after Cycle 1 and had not received another Waldenstrom's Macroglobulinemia (WM) therapy received 300 mg IV ofatumumab at Week 1 and 2000 mg IV ofatumumab at Weeks 2 through 5. Participants who achieved a response in either Cycle 1 or the RC and subsequently progressed before 36 months entered Cycle 2 of treatment and received IV ofatumumab 300 mg at Week 1 and IV ofatumumab 2000 mg during Weeks 2 through 5.","id":"FG000","title":"300 mg Ofatumumab, Wk. 1; 1000/2000 mg Ofatumumab, Wk. 2-4/2-5"},{"description":"Participants received ofatumumab IV at 300 mg at Week 1 and 2000 mg at Weeks 2 through 5 in Cycle 1 (defined as a treatment period of up to 5 weeks \\[Weeks 1 through 5\\]) and were followed up for 10 weeks (Weeks 6-16). After Week 16, during the RC, participants who had Minor Response or stable disease after Cycle 1 and had not received another WM therapy received 300 mg IV ofatumumab at Week 1 and 2000 mg IV ofatumumab at Weeks 2 through 5. Participants who achieved a response and subsequently progressed before 36 months entered Cycle 2 of treatment and received 300 mg at Week 1 and 2000 mg during Weeks 2 through 5.","id":"FG001","title":"300 mg Ofatumumab, Wk. 1; 2000 mg Ofatumumab, Wk. 2-5"}],"periods":[{"dropWithdraws":[{"reasons":[{"groupId":"FG000","numSubjects":"10"},{"groupId":"FG001","numSubjects":"8"}],"type":"Investigator Discretion"},{"reasons":[{"groupId":"FG000","numSubjects":"1"},{"groupId":"FG001","numSubjects":"2"}],"type":"Withdrawal by Subject"}],"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"15"},{"groupId":"FG001","numSubjects":"22"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"4"},{"groupId":"FG001","numSubjects":"12"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"11"},{"groupId":"FG001","numSubjects":"10"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}]}