학술논문

Sacubitril/valsartan for cardioprotection in breast cancer (MAINSTREAM): design and rationale of the randomized trial
Document Type
Report
Source
ESC Heart Failure. October 2023, Vol. 10 Issue 5, p3174, 10 p.
Subject
Care and treatment
Health aspects
Clinical trials -- Health aspects
Anthracyclines -- Health aspects
Angiotensin II -- Health aspects
Aldosterone -- Health aspects
Epidermal growth factors -- Health aspects
Breast cancer -- Care and treatment
Epidermal growth factor -- Health aspects
Language
English
Abstract
Introduction Breast cancer is the most prevalent malignancy in Western countries, and its worldwide prevalence is expected to significantly increase in the future.[sup.1] Taking into consideration a notably lower age [...]
: Aims: In recent years, survival in patients with breast cancer has increased. Despite the improvement in outcomes of those patients, the risk of treatment‐related cardiotoxicity remains high, and its presence has been associated with a higher risk of treatment termination and thus lower therapeutic efficacy. Prior trials demonstrated that a preventive initiation of heart failure drugs, including the renin–angiotensin–aldosterone inhibitors, might reduce the risk of treatment‐related cardiotoxicity. However, to date, no study investigated the efficacy of sacubitril/valsartan, a novel antineurohormonal drug shown to be superior to the previous therapies, in the prevention of cardiotoxicity in patients with early‐stage breast cancer, which is the aim of the trial. Methods and results: MAINSTREAM is a randomized, placebo‐controlled, double‐blind, multicentre, clinical trial. After the run‐in period, a total of 480 patients with early breast cancer undergoing treatment with anthracyclines and/or anti‐human epidermal growth factor receptor 2 drugs will be randomized to the highest tolerated dose of sacubitril/valsartan, being preferably 97/103 mg twice daily or placebo in 1:1 ratio. The patients will be monitored, including routine transthoracic echocardiography (TTE) and laboratory biomarker monitoring, for 24 months. The primary endpoint of the trial will be the occurrence of a decrease in left ventricular ejection fraction by ≥5% in TTE within 24 months. The key secondary endpoints will be the composite endpoint of death from any cause or hospitalization for heart failure, as well as other imaging, laboratory, and clinical outcomes, including the occurrence of the cancer therapy‐related cardiac dysfunction resulting in the necessity to initiate treatment. The first patients are expected to be recruited in the coming months, and the estimated completion of the study and publication of the results are expected in December 2027, pending recruitment. Conclusions: The MAINSTREAM trial will determine the efficacy and safety of treatment with sacubitril/valsartan as a prevention of cardiotoxicity in patients with early breast cancer (http://ClinicalTrials.gov number: NCT05465031).