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Subgroup analysis of PFS (intention-to-treat population). Subgroup analyses according to randomization stratification factors categorized patients for PFI, PD-L1 status, and chemotherapy cohort as recorded in the electronic case report form. CA-125, cancer antigen-125; HR, hazard ratio; PFS, progression-free survival; PLD, pegylated liposomal doxorubicin; SLD, sum of largest diameter.
