{"analyses":[{"ciLowerLimit":"0.585","ciNumSides":"TWO_SIDED","ciPctValue":"95","ciUpperLimit":"0.776","groupIds":["OG000","OG001"],"nonInferiorityType":"SUPERIORITY_OR_OTHER","pValue":"<0.0001","pValueComment":"The nominal P-value = 0.05.","paramType":"Hazard Ratio (HR)","paramValue":"0.673","statisticalComment":"This was a stratified analysis.","statisticalMethod":"Log Rank","testedNonInferiority":false}],"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"169.0","upperLimit":"192.0","value":"171.0"},{"groupId":"OG001","lowerLimit":"88.0","upperLimit":"168.0","value":"110.0"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"797"},{"groupId":"OG001","value":"398"}],"units":"Participants"}],"description":"Radiographic progression-free survival is based on imaging studies according to modified Response Evaluation Criteria in Solid Tumors (RECIST): baseline lymph node size must be \\>=2.0 cm to be considered a target lesion; progression on bone scans with \\>=2 new lesions not consistent with tumor flare, confirmed on a second scan \\>=6 weeks later that shows \\>=1 additional new lesion.","dispersionType":"95% Confidence Interval","groups":[{"description":"Abiraterone acetate plus prednisone/prednisolone administered as four 250 mg tablets of abiraterone acetate once daily plus 5 mg prednisone/5 mg prednisolone twice daily until disease progression.","id":"OG000","title":"Abiraterone Acetate"},{"description":"Placebo plus prednisone/prednisolone administered as four placebo tablets once daily plus 5 mg prednisone/5 mg prednisolone tablet twice daily until disease progression.","id":"OG001","title":"Placebo"}],"paramType":"MEDIAN","populationDescription":"Analysis was performed on the Intent-to-Treat (ITT) population. The ITT population is composed of all patients randomized into the study and who will be classified according to their assigned teatment group, regardless of the actual treatment received.","reportingStatus":"POSTED","timeFrame":"Up to 11 months","title":"Radiographic Progression-free Survival","type":"SECONDARY","unitOfMeasure":"Days"}