Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Using radiotherapy to treat advanced heart failure

Official title: Cardiac RadiothErapy For hEart faiLure

Run by Universitaire Ziekenhuizen KU Leuven · NCT06661876 · Data updated 2026-11-12

This study is testing if a single low dose of radiation therapy can help people with advanced heart failure feel better and improve their heart function.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment40 (estimated)
SponsorUniversitaire Ziekenhuizen KU Leuven
Academic / other
Locations1 site (Leuven)
StatusRecruiting
StartedJanuary 1, 2025
Main results expectedDecember 31, 2026
Study endsJune 30, 2027
Registry record updatedDecember 1, 2025
Trial IDNCT06661876 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with advanced refractory heart failure and a left ventricular ejection fraction of 35% or less.

Probably not a fit

Patients who are eligible for heart transplantation or have had previous radiotherapy involving the heart may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the effects of a single low dose of whole heart external beam radiotherapy (EBRT) on patients with advanced refractory heart failure. The treatment involves administering 5 Gray of EBRT to assess its efficacy in improving left ventricular ejection fraction (LVEF) by at least 5%. The study will also evaluate safety, overall survival, hospital admissions, late toxicity, quality of life, and other heart function indicators. Participants must have stable heart failure and meet specific eligibility criteria.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced heart failure who have not responded to conventional therapies.

How similar studies have gone: Preliminary data suggests potential benefits, but this approach is relatively novel and has not been extensively tested in similar studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient ≥ 18 years
* Advanced refractory HF NYHA class II, III or IV
* Stable HF for the last 6 months with maximal guideline-directed HF therapy
* Ischemic or dilated cardiomyopathy
* LVEF at baseline ≤ 35%
* Ability to give a written informed consent and willingness to return for follow-up

Exclusion Criteria:

* Eligible or in consideration for heart transplantation
* Pregnancy or breastfeeding
* Previous radiotherapy with cardiac involvement
* Any condition that is deemed a contraindication in the judgment of the investigators

Where it's running

  • UZ Leuven
    Leuven, Belgium
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.