Nonadherence to Adjuvant Tamoxifen Therapy in Women With Primary Breast Cancer

Abstract

The mean level of adherence to tamoxifen is high compared with other chronic medications. However, nearly one fourth of patients may be at risk for inadequate clinical response because of poor adherence. Because of the efficacy of tamoxifen therapy in preventing recurrence and death in women with early-stage breast cancer, further efforts are necessary to identify and prevent suboptimal adherence.