Adherence to oral anti-cancer therapies in older patients is similar to that of younger patients

Introduction

The use of oral anti-cancer therapies is becoming increasingly common in the management of cancers, raising the question of adherence. The objective of this study was to assess adherence to oral anti-cancer therapies, as well as the impact of various factors that may influence it.

Methods

Patients starting oral chemotherapy (tyrosine kinase inhibitor or cytotoxic) were followed up for 3 months using a medication diary, which was given to the patient by the pharmacist during a multidisciplinary consultation. Adherence was assessed using the diary, as well as by counting the tablets they brought back.

Results

One hundred and fifty patients were included in the study. The main oral chemotherapy agents prescribed were palbociclib (23.3%), everolimus (18.7%), and capecitabine (13.3%). The adherence at the end of the 3 months, by means of dose intensity (i.e. percent of the dose prescribed that has been taken), was 95.5%. No significant difference in adherence was found based on age, sex, family circumstances, health status, co-medication, type of oral therapy, tumor location, number of previous treatment lines, or presence of toxicity. The main reasons for non-adherence were forgetting (50%) and toxicity (21%). Fifty-seven patients prematurely discontinued the study: 40.3% for toxicity and 36.8% for disease progression.

Conclusion

Adherence in this study is high in comparison to literature, which can be explained by close multidisciplinary follow-up. Moreover, no significant difference was observed between younger and older patients.

Impact of routine assessment of health-related quality of life coupled with therapeutic information on compliance with endocrine therapy in patients with non-metastatic breast cancer: protocol for a randomized controlled trial

Background

Despite its proven efficacy in reducing recurrence and improving survival, adherence to endocrine therapy (ET) is suboptimal in women with breast cancer (BC). Health-related quality of life (HRQoL) in BC has been widely studied and many positive effects have been highlighted. Recently, a link between HRQoL and compliance with ET has been suggested, which would suggest a potential role for HRQoL assessment in improving compliance with ET. With the advent of digital technologies, electronic collection of HRQoL on a tablet is now possible. Thus, we hypothesize that systematic HRQoL assessment (using a tablet, prior to each consultation, with presentation of scores to clinicians) coupled with therapeutic information could have an impact on 12-month compliance with ET in patients with non-metastatic BC.

Methods

In this study, we will include 342 women with non-metastatic hormone receptor–positive BC with an indication for treatment with ET. Patients will be randomly assigned 1:1 by minimization and stratified by age, stage, type of ET prescribed, and presence of comorbidities (or not) in two arms. The intervention will consist of numerical HRQoL assessment using the CHES (Computer-based Health Evaluation System) software before each consultation (with delivery of scores to clinicians) coupled with therapeutic information. Therapeutic information will consist of three workshops related to understanding the prescription, nutrition, and fatigue. A reminder letter will be sent to patients every month. Patients in the control group will follow standard care. HRQoL will be assessed using a classic “paper-pencil” collection at baseline in both arms to ensure comparability between arms and at 12 months. The primary endpoint is 12-month compliance with ET. Patient satisfaction with care and the clinicians’ perception of the usefulness of routine HRQoL assessment will also be assessed.

Discussion

This study will allow clinicians to identify and better understand the areas in which patients who receive ET have difficulties and thus it will assist clinicians with patient management. Systematic evaluation of HRQoL could provide an additional endpoint for measuring patients’ health status and treatment-related symptoms, including ET. If the results of this study are positive, this intervention could be proposed as an integral part of daily clinical practice in patients who receive ET.

Trial registration

ClinicalTrials.govNCT04176809. Registered Nov. 25, 2019.