The association of pharmacy fill synchronization with breast cancer endocrine therapy adherence

Background One‐third to one‐half of patients prescribed adjuvant endocrine therapy are nonadherent during the recommended 5‐year endocrine therapy course. This study investigated whether poor pharmacy synchronization of medication fills (requiring refills on different days) acts as a barrier to adherence. Methods A cohort of older women with stage 0 to III endocrine receptor–positive breast cancer in 2011 was identified from the Surveillance,...