A clinical trial has provided evidence that certain breast cancer survivors may not require lifelong heart medication following cancer treatment, offering potential relief for patients who experienced cardiac complications from their therapy.
The trial, funded by the British Heart Foundation, enrolled 90 women in their 40s and 50s across four UK hospitals whose heart function had recovered after receiving treatment for breast cancer. Traditionally, these patients would have been advised to continue heart-protective medications indefinitely due to concerns about potential deterioration if they discontinued the drugs. Researchers examined whether patients could safely stop this medication under appropriate medical supervision.
Results indicated that 98% of participants who discontinued their heart medication showed no change in cardiac function after one year, with only one woman developing a problem with her heart’s pumping ability. Patients who stopped taking the medications reported improved quality of life in questionnaires. The trial was led by Prof Charlotte Manisty at University College London and has been published in the Heart Journal.
Lucy Shepherd, a breast cancer survivor who participated in the trial, reported that discontinuing her heart medication improved her daily life by reducing side effects including low heart rate and fatigue, as well as alleviating the psychological burden of long-term medication management. She noted that while continuing hormone therapy, she no longer experiences the same level of anxiety about her heart health following her cancer diagnosis and treatment.
Researchers indicate their findings should prompt discussions between survivors and their physicians about individualized treatment decisions. Participants will continue to be monitored over the next five years. According to Cancer UK, breast cancer is the most common cancer in the UK, with approximately 15 to 20% of cases involving HER2-positive cells. Around 10% of patients receiving treatment for this type of breast cancer experience cardiac function problems.
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