Cited by 710Medication Adherence and ComplianceCancer survivorship and careBreast Cancer Treatment Studies

Adherence to adjuvant hormonal therapy among breast cancer survivors in clinical practice: a systematic review

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Murphy, Caitlin C., Bartholomew, L. Kay, Carpentier, Melissa Y., Bluethmann, Shirley M., Vernon, Sally W.·2012·Breast Cancer Research and Treatment

Abstract

Adjuvant hormonal therapy significantly improves long-term survival of breast cancer patients with hormone receptor-positive disease. Despite the proven clinical efficacy of tamoxifen and aromatase inhibitors, many breast cancer survivors either fail to take the correct dosage at the prescribed frequency (adherence) or discontinue therapy (persistence). This systematic review aims to: (1) determine the prevalence of adherence and persistence to adjuvant hormonal therapy among breast cancer survivors in clinical practice, and (2) identify correlates of adherence and persistence. We searched Medline, PubMed, PsycINFO, and CINAHL for studies that measured rates and/or correlates of adherence and/or persistence to adjuvant hormonal therapy. Studies were reviewed in a multi-step process: (1) the lead author screened titles and abstracts of all potentially eligible studies; (2) each coauthor reviewed a random 5 % sample of abstracts; and (3) two sets of coauthors each reviewed half of all “maybe” abstracts. Any disagreements were discussed until consensus was reached. Twenty-nine studies met inclusion criteria. Prevalence of adherence ranged from 41 to 72 % and discontinuation (i.e., nonpersistence) ranged from 31 to 73 %, measured at the end of 5 years of treatment. Extremes of age (older or younger), increasing out-of-pocket costs, follow-up care with a general practitioner (vs. oncologist), higher CYP2D6 activity, switching from one form of therapy to another, and treatment side effects were negatively associated with adherence and/or persistence. Taking more medications at baseline, referral to an oncologist, and earlier year at diagnosis were positively associated with adherence and/or persistence. Adherence and persistence to adjuvant hormonal therapy among breast cancer survivors is suboptimal. Many of the correlates of adherence and persistence studied to date are not modifiable. Our review reveals a critical need for further research on modifiable factors associated with adherence to adjuvant hormonal therapy, and the development of behavioral interventions to improve adherence in this population.

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Authors
Murphy, C. C., Bartholomew, L. K., Carpentier, M. Y., Bluethmann, S. M., & Vernon, S. W.
Affiliations
The University of Texas Health Science Center at Houston (US)
Corresponding author
Murphy, Caitlin C.
Venue
Breast Cancer Research and Treatment
Published
2012-06-12
Volume
134
Issue
2
Pages
459-478
ISSN
  • 0167-6806 (ISSN-L)
  • 1573-7217
OpenAlex
W1987753117
Cited by
708
References
85
Citations by year
2026: 32 · 2025: 63 · 2024: 59 · 2023: 67 · 2022: 71 · 2021: 59 · 2020: 60 · 2019: 54 · 2018: 41 · 2017: 64 · 2016: 33 · 2015: 38 · 2014: 32 · 2013: 34 · 2012: 1
FWCI
4.41
Type
journal article
Language
en
Open access
Locations
  • Breast Cancer Research and Treatment (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (R25CA057712, R01CA112223, K07CA140159)
Topics
  • Health Sciences › Medicine › Family Practice › Medication Adherence and Compliance
  • Health Sciences › Medicine › Oncology › Cancer survivorship and care
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Breast Cancer Treatment Studies
Keywords
adjuvant endocrine therapy, breast cancer survivors, medication adherence, treatment persistence, tamoxifen, aromatase inhibitors, hormone receptor-positive breast cancer, out-of-pocket costs, treatment side effects, behavioral interventions
MeSH terms
Breast Neoplasms, Clinical Trials as Topic, Female, Humans, Neoplasms, Hormone-Dependent, Chemotherapy, Adjuvant, Survivors, Antineoplastic Agents, Hormonal, Medication Adherence

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