Long-term follow-up assessment of cardiac safety in SAFE-HEaRt, a clinical trial evaluating the use of HER2-targeted therapies in patients with breast cancer and compromised heart function Journal Article


Authors: Khoury, K.; Lynce, F.; Barac, A.; Geng, X.; Dang, C.; Yu, A. F.; Smith, K. L.; Gallagher, C.; Pohlmann, P. R.; Nunes, R.; Herbolsheimer, P.; Warren, R.; Srichai, M. B.; Hofmeyer, M.; Asch, F.; Tan, M.; Isaacs, C.; Swain, S. M.
Article Title: Long-term follow-up assessment of cardiac safety in SAFE-HEaRt, a clinical trial evaluating the use of HER2-targeted therapies in patients with breast cancer and compromised heart function
Abstract: Purpose: HER2-targeted therapies are associated with cardiotoxicity which is usually asymptomatic and reversible. We report the updated cardiac safety assessment of patients with compromised heart function receiving HER2-targeted therapy for breast cancer, enrolled in the SAFE-HEaRt trial, at a median follow-up of 3.5 years. Methods: Thirty patients with stage I-IV HER2-positive breast cancer receiving trastuzumab with or without pertuzumab, or ado-trastuzumab emtansine (T-DM1), with asymptomatic LVEF (left ventricular ejection fraction) 40–49%, were started on cardioprotective medications, with the primary endpoint being completion of HER2-targeted therapy without cardiac events (CE) or protocol-defined asymptomatic worsening of LVEF. IRB-approved follow-up assessment included 23 patients. Results: Median follow-up as of June 2020 is 42 months. The study met its primary endpoint with 27 patients (90%) completing their HER2-targeted therapies without cardiac issues. Of the 23 evaluable patients at long-term f/u, 14 had early stage breast cancer, and 9 had metastatic disease, 8 of whom remained on HER2-targeted therapies. One patient developed symptomatic heart failure with no change in LVEF. There were no cardiac deaths. The mean LVEF improved to 52.1% from 44.9% at study baseline, including patients who remained on HER2-targeted therapy, and those who received prior anthracyclines. Conclusions: Long-term follow-up of the SAFE-HEaRt study continues to provide safety data of HER2-targeted therapy use in patients with compromised heart function. The late development of cardiac dysfunction is uncommon and continued multi-disciplinary oncologic and cardiac care of patients is vital for improved patient outcomes. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature.
Keywords: clinical article; drug safety; treatment duration; cancer staging; follow up; prospective study; breast cancer; heart disease; cancer therapy; risk assessment; heart failure; long term care; trastuzumab; heart left ventricle ejection fraction; metastatic breast cancer; beta adrenergic receptor blocking agent; dipeptidyl carboxypeptidase inhibitor; heart protection; pertuzumab; angiotensin receptor antagonist; heart function; cardiac dysfunction; clinical outcome; her2-targeted therapy; cardiac safety; human; priority journal; article; cardioprotective medications
Journal Title: Breast Cancer Research and Treatment
Volume: 185
Issue: 3
ISSN: 0167-6806
Publisher: Springer  
Date Published: 2021-02-01
Start Page: 863
End Page: 868
Language: English
DOI: 10.1007/s10549-020-06053-y
PUBMED: 33400034
PROVIDER: scopus
PMCID: PMC8207895
DOI/URL:
Notes: Article -- Export Date: 1 April 2021 -- Source: Scopus
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  1. Chau Dang
    271 Dang
  2. Anthony Yu
    90 Yu