{"groups":[{"description":"Surgical removal of the prostate","id":"FG000","title":"Radical Prostatectomy"},{"description":"Closely watching, waiting and treating symptoms if and when cancer progresses","id":"FG001","title":"Watchful Waiting"}],"periods":[{"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"364"},{"groupId":"FG001","numSubjects":"367"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"364"},{"groupId":"FG001","numSubjects":"367"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"0"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}],"preAssignmentDetails":"A total of 13,022 men were entered into study logs as potentially eligible. Based upon further chart review, 6707 met age, comorbidity and prostate cancer specific criteria and received detailed information about the study. From these, 5023 were considered likely to be eligible and a total of 731 men agreed to participate.","recruitmentDetails":"Enrollment begain in November 1994 and ended in January 2002 with follow-up through January 2010. We recruited men from 44 Department of Veterans Affairs sites and 8 National Cancer Institute sites."}