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PFS (A) and OS (B) stratified by hormone therapy use in the continuation treatment phase (yes versus no) in the subgroup with estrogen receptor-positive disease.
Notes: *In the hormone-therapy group, the OS median was not reached (immature data); 56.3 months was the maximum value recorded in this group.
Abbreviations: CI, confidence interval; HR, hazard ratio; OS, overall survival; PFS, progression-free survival.
