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Pharmacy 2018, 6(2), 53; https://doi.org/10.3390/pharmacy6020053

Women’s Beliefs on Early Adherence to Adjuvant Endocrine Therapy for Breast Cancer: A Theory-Based Qualitative Study to Guide the Development of Community Pharmacist Interventions

1
Population Health and Optimal Health Practices, CHU de Quebec–Université Laval Research Centre, Hôpital du Saint-Sacrement, 1050 chemin Ste-Foy, Quebec, QC G1S 4L8, Canada
2
Faculty of Pharmacy, Université Laval, 1050 avenue de la Médecine, Quebec, QC G1V 0A6, Canada
3
Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
4
Faculty of Pharmacy, Université de Montréal, 2940 Chemin de Polytechnique, Montréal, QC H3T 1J4, Canada
5
Faculty of Nursing, Université Laval, Quebec, 1050 avenue de la Médecine, Quebec, QC G1V 0A6, Canada
6
Oncology Research Unit, CHU de Quebec–Université Laval Research Centre, Hôpital du Saint-Sacrement, 1050 chemin Ste-Foy, Quebec, QC G1S 4L8, Canada
7
Centre des maladies du sein Deschênes-Fabia, CHU de Quebec–Université Laval, Hôpital du Saint-Sacrement, 1050 chemin Ste-Foy, Quebec, QC, G1S 4L8, Canada
*
Author to whom correspondence should be addressed.
Received: 9 April 2018 / Revised: 2 June 2018 / Accepted: 5 June 2018 / Published: 9 June 2018
(This article belongs to the Special Issue Qualitative Methods in Pharmacy Research)
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Abstract

Adjuvant endocrine therapy (AET) taken for a minimum of five years reduces the recurrence and mortality risks among women with hormone-sensitive breast cancer. However, adherence to AET is suboptimal. To guide the development of theory-based interventions to enhance AET adherence, we conducted a study to explore beliefs regarding early adherence to AET. This qualitative study was guided by the Theory of Planned Behavior (TPB). We conducted focus groups and individual interviews among women prescribed AET in the last two years (n = 43). The topic guide explored attitudinal (perceived advantages and disadvantages), normative (perception of approval or disapproval), and control beliefs (barriers and facilitating factors) towards adhering to AET. Thematic analysis was conducted. Most women had a positive attitude towards AET regardless of their medication-taking behavior. The principal perceived advantage was protection against a recurrence while the principal inconvenience was side effects. Almost everyone approved of the woman taking her medication. The women mentioned facilitating factors to encourage medication-taking behaviors and cope with side effects. For adherent women, having trouble establishing a routine was their main barrier to taking medication. For non-adherent women, it was side effects affecting their quality of life. These findings could inform the development of community pharmacy-based adherence interventions. View Full-Text
Keywords: oncology; breast cancer; medication adherence; tamoxifen; aromatase inhibitors qualitative research oncology; breast cancer; medication adherence; tamoxifen; aromatase inhibitors qualitative research
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Humphries, B.; Collins, S.; Guillaumie, L.; Lemieux, J.; Dionne, A.; Provencher, L.; Moisan, J.; Lauzier, S. Women’s Beliefs on Early Adherence to Adjuvant Endocrine Therapy for Breast Cancer: A Theory-Based Qualitative Study to Guide the Development of Community Pharmacist Interventions. Pharmacy 2018, 6, 53.

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