About this trial
This pilot randomized clinical study aims to evaluate the cardioprotective effects of a grape polyphenol concentrate in patients receiving anthracycline- and/or trastuzumab-based chemotherapy. Adult patients at high or very high risk of chemotherapy-induced cardiotoxicity will be randomized to receive either a grape polyphenol concentrate or placebo for three months, starting with chemotherapy. Cardiac function and cardiotoxicity will be assessed using echocardiographic parameters and circulating biomarkers at baseline, 3 months, and 6 months.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Female patients aged 30 to 75 years.
Histologically confirmed breast cancer.
Planned treatment with anthracycline- and/or trastuzumab-based chemotherapy.
High or very high risk of chemotherapy-induced cardiotoxicity (≥20%), based on clinical assessment.
Disqualifiers
ECOG performance status of 4.
Pre-existing severe cardiovascular disease that would interfere with study participation.
Permanent atrial fibrillation or other clinically significant arrhythmias.
Severe hepatic or renal impairment.
Trial design
Parallel
Treatments tested in this trial
Grape Polyphenol Concentrate
Dietary supplementGrape polyphenol concentrate, 20 mg/mL; participants take 15 mL orally once daily for 3 months starting with chemotherapy.
Placebo (Dark Grape Juice)
Other interventionPlacebo (dark grape juice); participants take 15 mL orally once daily for 3 months starting with chemotherapy.
Treatment groups
Trial outcomes
Primary outcomes
Change in High-Sensitivity Troponin Levels
Change from baseline in serum high-sensitivity cardiac troponin levels as a marker of myocardial injury.
Change in NT-proBNP Levels
Change from baseline in N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels as a marker of cardiac stress.
Change in Left Ventricular Ejection Fraction (LVEF)
Change from baseline in left ventricular ejection fraction measured by transthoracic echocardiography.
Change in Global Longitudinal Strain (GLS)
Change from baseline in left ventricular global longitudinal strain assessed by speckle-tracking echocardiography.
Secondary outcomes
Safety and Tolerability of Grape Polyphenol Supplementation
Incidence and severity of adverse events related to the grape polyphenol concentrate and placebo during the intervention period.
Locations
Sponsors and contacts
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