Pharmacologic Therapies to Mitigate Radiation- Associated Heart Disease

Radiation therapy is an essential treatment for tumors in the chest area, including breast, lung, esophageal, mediastinal cancers, and spine metastases. Although technical advances have reduced treatment-related illness and death, radiation exposure to the heart can still cause substantial rates of radiation-induced heart disease (RIHD) among survivors.

For example, about 21% of non-small cell lung cancer patients receiving a mean heart dose of 20 Gy or higher experience major adverse cardiac events (MACE) within 2 years. In breast cancer patients, the risk of MACE increases by about 7% for each additional Gy of mean heart dose.

There is currently no established medication strategy to prevent or reduce RIHD.

Preclinical and clinical studies show that statins and angiotensin-converting enzyme (ACE) inhibitors may help reduce radiation-induced heart disease (RIHD). Statins and ACE inhibitors are generally well tolerated, available as generic drugs, and commonly used to help prevent cardiovascular disease. They may protect the heart by reducing damage to blood vessel lining (endothelial damage), microvascular dysfunction, atherosclerosis, reduced blood flow (ischemia), and fibrosis (scarring).

This study is a prospective, randomized, placebo-controlled phase II hybrid decentralized trial. Patients receiving standard radiation therapy and expected to receive an equivalent dose of at least 25 Gy (EQD2) to at least 10% of the heart will be randomly assigned to receive either:

  • placebo, or
  • Atorvastatin 20 mg plus Lisinopril 5 mg daily. The medications will be taken during radiation therapy and continued for 6 months after treatment.

The study aims to determine whether the intervention can reduce radiation-related decreases in blood flow to the heart, measured using myocardial perfusion imaging, such as positron emission tomography (PET), which is commonly used to evaluate the risk of coronary heart disease.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

60

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • North Carolina
      • Chapel Hill, North Carolina, United States, 27599
        • Lineberger Comprehensive Cancer Center at University of North Carolina, Chapel Hill

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Written informed consent obtained to participate in the study and HIPAA
  • authorization for release of personal health information.
  • Subjects is willing and able to comply with study procedures based on the
  • judgement of the investigator.
  • Consent for serial blood draws and consent for use of biological specimens.
  • Age ≥ 18 years at the time of consent

Exclusion Criteria:

  • Pregnant or breastfeeding (NOTE: breast milk cannot be stored for future use while the mother is being treated on study).
  • Pre-existing use of a statin or ACE-inhibitor
  • Pre-existing hypotension

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: statins and angiotensin-converting enzyme (ACE) inhibitors
Patients expected to receive ≥25 Gy equivalent dose in 2 Gy fractions (EQD2) to at least 10% of the heart will be treated with statins and angiotensin-converting enzyme (ACE) inhibitors.
Patients will receive statins and angiotensin-converting enzyme (ACE) inhibitors.
Placebo Comparator: Placebo
Patients expected to receive ≥25 Gy equivalent dose in 2 Gy fractions (EQD2) to at least 10% of the heart will take inhibitors.
Patients will receive placebo.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percent difference in the radiation (RT)-induced reduction of myocardial perfusion
Time Frame: Pre radiation therapy and 6-month post radiation therapy
Percent difference in the radiation (RT)-induced reduction of myocardial perfusion in cardiac regions receiving ≥25Gy equivalent dose in 2Gy fractions (EQD2) based on comparison of before and after RT among participants receiving placebo and statins and angiotensin-converting enzyme (ACE) inhibitors intervention.
Pre radiation therapy and 6-month post radiation therapy

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percent Change in Radiation-Induced Myocardial Perfusion Reduction by Cardiac Dose: Placebo vs Statin and ACE Inhibitor Therapy
Time Frame: Pre radiation therapy and 6-month post radiation therapy
Percent difference in radiation therapy (RT)-induced reduction of myocardial perfusion in cardiac regions receiving different radiation doses (10-20 Gy and 20-25 Gy equivalent dose in 2 Gy fractions, EQD2), based on comparison of pre-RT and 6-month post-RT myocardial perfusion imaging scans between participants receiving placebo versus statins and angiotensin-converting enzyme (ACE) inhibitors intervention.
Pre radiation therapy and 6-month post radiation therapy
Change in for cardiac biomarker panel
Time Frame: Pre radiation therapy and 3 months and 6-month post radiation therapy
Change in for cardiac biomarker panel including high- sensitivity troponin, Creatine Kinase myocardial band (CK-MB) or N-terminal pro-B-type Natriuretic Peptide( NT-proBNP).
Pre radiation therapy and 3 months and 6-month post radiation therapy
Correlation between cardiac stress and perfusion biomarkers and radiation dose
Time Frame: Pre radiation therapy and 3 months and 6-month post radiation therapy
Correlations between absolute values and changes in cardiac stress/perfusion biomarkers and radiation dose at the individual pixel level will be compared between the placebo and intervention groups. Cardiac perfusion imaging provides quantitative assessment of regional myocardial perfusion, and the absolute difference in RT-induced perfusion reduction between study arms will be evaluated using pre- and post-RT measurements. Changes in cardiac biomarkers, including high- sensitivity troponin, Creatine Kinase myocardial band (CK-MB) or N-terminal pro-B-type Natriuretic Peptide( NT-proBNP). will also be assessed.
Pre radiation therapy and 3 months and 6-month post radiation therapy
Rates of major adverse cardiac events
Time Frame: At follow-up of 1, 2, and 3 years.
Rates of major adverse cardiac events (unstable angina, heart failure hospitalization or urgent visit, myocardial infarction, coronary revascularization, and cardiac death) will be compared between trial groups at long-term
At follow-up of 1, 2, and 3 years.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Shivani Sud, MD, UNC Lineberger Comprehensive Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

July 1, 2026

Primary Completion (Estimated)

February 1, 2029

Study Completion (Estimated)

February 1, 2029

Study Registration Dates

First Submitted

June 29, 2026

First Submitted That Met QC Criteria

June 29, 2026

First Posted (Actual)

July 6, 2026

Study Record Updates

Last Update Posted (Actual)

July 6, 2026

Last Update Submitted That Met QC Criteria

June 29, 2026

Last Verified

June 1, 2026

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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