Acute & Long-term Cardiovascular Toxicity After Modern Radiotherapy for

Status Recruiting

Clinical Trial Summary

In Europe, breast cancer is by far the most common form of cancer diagnosed in women today, accounting for 29% of all cases. The 5-year survival rate is approximately 90%. Surgery is usually combined with radiotherapy (RT), anthracyclines, aromatase inhibitors and/or trastuzumab (Herceptin) which all have improved the life expectancy and survival in breast cancer patients. Unfortunately, RT is associated with a broad spectrum of cardiovascular diseases, which includes coronary artery disease, valvular dysfunction, congestive heart failure and stroke, and is the most common non-malignancy cause of death. During the last two decades, RT regimens for breast cancer have changed and the doses of radiation to which the heart is exposed are now potentially lower due to new and improved RT techniques. However, there are no data on whether these new regimes decrease the risk of cardiovascular disease. In this study the incidence and prevalence of cardiovascular diseases will be estimated 8 and 15 years after both conventional and laser assisted breath controlled RT, and compared with cardiovascular diseases in the general female population. A further aim is to evaluate signs and prevalence of acute cardiotoxicity from RT with the use of cardiac magnetic resonance imaging, coronary fractional flow reserve, ECG and inflammatory and cardiac biomarkers and to investigate whether these signs can predict later cardiovascular disease. The importance of traditional cardiovascular risk factors (age, hypertension, hypercholesterolemia, smoking habits and physical activity, as registered before RT) will also be evaluated.

Clinical Trial Description

The study is an observational study. In 2007-2012 conventional RT was part of the common treatment regime for breast cancer, but has recently been replaced by laser assisted breath controlled RT. Thus, two cohorts of breast cancer patients treated with different modes of RT will be followed for the development of cardiovascular disease for the subsequent 15 years. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02541435
Study type	Observational
Source	St. Olavs Hospital
Contact	torgeir wethal, md phd
Email	torgeir.wethal@stolav.no
Status	Recruiting
Phase
Start date	November 2016
Completion date	December 2036

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Acute and Long-term Cardiovascular Toxicity After Modern Radiotherapy for Breast Cancer

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms