NCT01022086

Assessment of Cardiotoxicity by Cardiac Magnetic Resonance (CMR) in Breast Cancer Patients Receiving Trastuzumab

Assessment of Cardiotoxicity by Cardiac MRI Versus MUGA Scans in Breast Cancer Patients Receiving Trastuzumab: A Double-Blinded Prospective Observational Pilot Study

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 50 (estimated)
• Sponsor: Unity Health Toronto · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Herceptin has shown significant improvement in breast cancer therapy and improved survival of patients over-expressing the HER-2 protein by 50%. However, Herceptin has shown to negatively affect the heart, and frequent heart monitoring with multiple gated acquisition (MUGA) scans is required. MUGA scans use radiation and are not very accurate. This study will use cardiac magnetic resonance images (CMRs) to evaluate heart function and compare to MUGA scans in patients receiving Herceptin for early-stage breast cancer. In addition, novel biomarkers will also be assessed at the same time to help identify possible patients at risk for developing heart toxicities.

Detailed description

Currently, serial MUGA scans are the imaging modality of choice for monitoring cardiotoxicity. However, MUGA scans only measure LVEF at the cost of ionizing radiation and considerable inter-study variability, and do not reliably detect cardiomyopathy. CMR is a highly accurate technique and represents a promising imaging alternative. Because CMR is now considered the gold standard for measuring LVEF and subclinical alterations in cardiac structure and function, it will be used in this prospective observational pilot study to determine its effectiveness for monitoring cardiotoxicity in patients receiving trastuzumab. Serial CMR will be compared to serial MUGA scans, as they are routinely used for LVEF monitoring with trastuzumab therapy, in standard practice. Cardiac biomarkers will also be measured in relation to CMR and MUGA scans. Furthermore, we will determine the long-term clinical and prognostic implications of trastuzumab-induced cardiotoxicity detected by these various methods. This will be a double-blinded prospective observational pilot study of breast cancer patients with overexpression of HER2 on breast pathology (using either immunohistochemistry \[IHC\] and/or fluorescence in-situ hybridization \[FISH\]), who have never received trastuzumab before, who will be treated with trastuzumab.

Conditions

• Stage I-IV Breast Cancer (Neo-adjuvant, Adjuvant, Locally Advanced and Metastatic)

Interventions

Type	Name	Description
PROCEDURE	Cardiac MRI	Cardiac magnetic resonance (CMR) imaging, otherwise called a cardiac (heart) MRI is a safe and standard clinical test that creates detailed images of your heart. It uses a computer to create images of your heart as it is beating, producing both still and moving pictures of your heart and major blood vessels. This test will allow the health professionals to obtain images of your beating heart and to look at the structure and function. Cardiac MRIs can help diagnose and evaluate a number of diseases conditions (such as heart failure, and heart valve disease) and will help doctors decide how to treat or manage patients who have heart problems.
BIOLOGICAL	Biomarker Testing	In addition to undergoing CMR imaging, patients will also have blood tests for two proteins, which serve as markers of heart injury and heart failure. These are called BNP and Troponin. These blood tests are currently used in clinical practice, but their precise role in monitoring heart function in cancer patients has not been well studied. Since the precise cause of Trastuzumab-induced heart damage is currently unknown, it is hoped that these two blood markers will provide valuable insights into how this happens. Peripheral venous blood samples will also be drawn at each CMR time-point. TGF β1, amino terminal propeptide of procollagen type I (PINP) and type III (PIIINP) and the carboxy-terminal telopeptide of collagen type 1 (CITP) will be measured by radioimmunoassay.

Timeline

• Start date: 2009-11-01
• Primary completion: 2019-12-01
• Completion: 2019-12-01
• First posted: 2009-12-01
• Last updated: 2017-07-12

Locations

2 sites across 1 country: Canada