ArticleBreast cancer research : BCR2024
Clinical factors associated with patterns of endocrine therapy adherence in premenopausal breast cancer patients.
Article in Breast cancer research : BCR, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.
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10 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- [Breast cancer survivor program: follow-up, rehabilitation, psycho-oncology, palliative care].Magyar onkologia · 2025Guideline
- CDK4/6 inhibitors plus endocrine therapy vs. placebo plus endocrine therapy for HR+/HER2- advanced breast cancer: a phase III RCTs based meta-analysis.BMC cancer · 2024Pooled it
- Development and validation of a nomogram for predicting the probability of medication adherence to adjuvant endocrine therapy in breast cancer patients: a predictive modeling study.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Article
- Identification of factors associated with non-adherence to oral endocrine therapy in breast cancer patients of low socioeconomic status: a single centre retrospective study.International journal of clinical pharmacy · 2026Article
- Adherence to endocrine therapy and survival outcomes in hormone receptor-positive breast cancer.Frontiers in oncology · 2026Article
- Side effects and adherence trajectories of adjuvant endocrine therapy in breast cancer patients: results from the VICAN2 study.Breast cancer research and treatment · 2025Article
- Adherence to oral anticancer medications in metastatic versus nonmetastatic breast cancer patients: Insights from a low-middle-income country.Exploratory research in clinical and social pharmacy · 2025Article
- Genetic variants in tamoxifen metabolism and early treatment discontinuation among premenopausal breast cancer patients.Breast cancer research and treatment · 2025Article
- Drug Interactions With Tamoxifen and Treatment Effectiveness in Premenopausal Breast Cancer Patients: A Bayesian Joint Modeling Approach.Pharmacoepidemiology and drug safety · 2025Article
- Investigating the Time-Varying Nature of Medication Adherence Predictors: An Experimental Approach Using Andersen's Behavioral Model of Health Services Use.Pharmacy (Basel, Switzerland) · 2025Article
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Abstract
introductionPatients with hormone receptor positive breast cancer are recommended at least five years of adjuvant endocrine therapy, but adherence to this treatment is often suboptimal. We investigated longitudinal trends in adjuvant endocrine therapy (AET) adherence among premenopausal breast cancer patients and identified clinical characteristics, including baseline comorbidities and non-cancer chronic medication use, associated with AET adherence.
methodsWe included stage I-III premenopausal breast cancer patients diagnosed during 2002-2011 and registered in the Danish Breast Cancer Group clinical database who initiated AET. We used group-based trajectory modeling to describe AET adherence patterns. We also linked patients to Danish population-based registries and fit multinomial logistic models to compute odds ratios (ORs) and 95% confidence intervals (95% CIs) associating clinical characteristics with AET adherence patterns.
resultsWe identified three adherence patterns among 4,353 women-high adherers (57%), slow decliners (36%), and rapid decliners (6.9%). Women with stage I disease (vs. stage II; OR: 1.9, 95% CI 1.5, 2.5), without chemotherapy (vs. chemotherapy; OR: 4.3, 95% CI 3.0, 6.1), with prevalent comorbid disease (Charlson Comorbidity Index score ≥ 1 vs. 0; OR: 1.6, 95% CI 1.1, 2.3), and with a history of chronic non-cancer medication use (vs. none; OR: 1.3, 95% CI 1.0, 1.8) were more likely to be rapid decliners compared with high adherers.
conclusionsWomen with stage I cancer, no chemotherapy, higher comorbidity burden, and history of chronic non-cancer medication use were less likely to adhere to AET. Taking steps to promote adherence in these groups of women may reduce their risk of recurrence.
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