Using Hyperpolarized [1-13C]Pyruvate to Detect Cardiotoxicity — HPCardiotox  

Breast Neoplasms Clinical Trial

Official title: Effect of Cardiotoxic Anticancer Therapy on the Metabolism of [1-13C]Pyruvate in Cardiac Mitochondria

Status Enrolling by invitation

Clinical Trial Summary

The anthracycline doxorubicin, first introduced in the 1960's, continues to be an effectively utilized antineoplastic drug. Even at relatively low cumulative doses there is risk of cardiotoxicity. However, the incidence of subclinical cardiotoxicity is not known, carrying a potential risk for late effects in cancer survivors. Doxorubicin has systemic toxicity that may contribute to cardiac metabolic stress, but the main cardiotoxic mechanism involves cardiac mitochondria. The primary goal of this study is to detect early changes in the mitochondrial metabolism in situ as a marker for subclinical doxorubicin induced cardiotoxicity. The problem of cardiovascular complications following chemotherapy for breast cancer goes far beyond anthracyclines alone. In addition, other agents such as trastuzumab, and pertuzumab and emerging novel therapies may also promote cardiovascular injury. The secondary objective is to test the hypothesis that cardiotoxicity due to other medical anticancer therapies and radiation therapy involving the heart field is associated with a signature of early impaired aerobic cardiac metabolism through pyruvate dehydrogenase.

Clinical Trial Description

This is a prospective, single-center study in women and men with breast cancer requiring cardiotoxic therapy. The study will be conducted in parallel to the standard clinical care, at dedicated visits.

In this study patients will undergo a cardiac magnetic resonance (MR) signal detection after injection of hyperpolarized carbon-13 pyruvate. The study will be performed before the course of cardiotoxic therapy, and after completing the treatment.

Patients will be screened prior to enrollment based on study specific inclusion and exclusion criteria and MRI safety criteria.

On the day of the metabolic cardiac MR scan an IV line will be inserted and the participant will receive a bolus of oral glucose. The ingestion of glucose will be required to prepare the state of the heart for metabolic imaging. Following this preparation the participant will undergo a cardiac MR study of about 45 minutes, including carbon-13 dedicated sequences.

A separate dedicated cardiac MRI session may be completed in certain participants.

In part I 10 patients will be administered at two visits 1) after completion of cardiotoxic therapy and 2) 1 to 6 months after the first time point following medical therapy (SOC)

In part II up to 100 patients will be administered at two visits: 1) baseline MRI before administration of cardiotoxic therapy and 2) after completion of cardiotoxic therapy ;

Related Conditions & MeSH terms

• Breast Neoplasms

• NCT number: NCT03685175
• Study type: Interventional
• Source: University of Texas Southwestern Medical Center
• Status: Enrolling by invitation
• Phase: Early Phase 1
• Start date: July 1, 2018
• Completion date: August 2024