PFS was defined as the time from randomization to the date of the first documentation of progressive disease as assessed by the independent radiologist or death due to any cause, whichever occurred first. PFS (in months) was calculated as (date of event or censoring-randomization+1)/30.4375. Progressive disease is defined per RECIST version 1.1, as at least a 20% increase (including an absolute increase of at least 5 mm) in the sum of the longest dimensions of the target lesions taking as a reference the smallest sum of the longest dimensions recorded since the treatment started, or the appearance of 1 or more new lesions.

Objective response rate (ORR) was defined as the percentage of participants with a best overall confirmed response of complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid Tumor (RECIST) version 1.1 relative to the total participants in the analysis population. CR was defined as the disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (\<) 10 millimeter (mm). PR was defined as a greater than equal to (\>=) 30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum longest dimensions. Independent Central Radiology (ICR) was used for disease progression assessment.