{"groups":[{"description":"Palbociclib at a dose of 125 mg orally once daily, Day 1 to Day 21 followed by 7 days off treatment in a 28-day cycle for a total duration of 2 years, in addition to standard adjuvant endocrine therapy for a duration of at least 5 years.","id":"FG000","title":"Palbociclib Plus Endocrine Therapy (Arm A)"},{"description":"Standard adjuvant endocrine therapy for a duration of at least 5 years.","id":"FG001","title":"Endocrine Therapy Alone (Arm B)"}],"periods":[{"dropWithdraws":[{"reasons":[{"groupId":"FG000","numSubjects":"11"},{"groupId":"FG001","numSubjects":"23"}],"type":"Withdrawal by Subject"},{"reasons":[{"groupId":"FG000","numSubjects":"1"},{"groupId":"FG001","numSubjects":"0"}],"type":"Ineligible"}],"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"2896"},{"groupId":"FG001","numSubjects":"2900"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"2884"},{"groupId":"FG001","numSubjects":"2877"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"12"},{"groupId":"FG001","numSubjects":"23"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}]}