Stereotactic radiotherapy for treating ventricular tachycardia

StereoTactic Arrhythmia Radiotherapy in the NetherLands no. 2

PHASE2 · Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) · NCT05439031

This study is testing if a special type of targeted radiation therapy can help people with hard-to-treat ventricular tachycardia feel better and improve their heart health.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment12 (estimated)
Ages18 Years and up
SexAll
SponsorAcademisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) (other)
Drugs / interventionsradiation
Locations1 site (Amsterdam, North Holland)
Trial IDNCT05439031 on ClinicalTrials.gov

What this trial studies

This study evaluates the efficacy and safety of stereotactic arrhythmia radiotherapy (STAR) in patients with therapy-refractory ventricular tachycardia (VT). It is a single-arm, monocenter, pre-post intervention study that aims to assess the impact of STAR on electro-anatomical alterations in the heart. Patients will receive a single dose of 25 Gy targeted at the pro-arrhythmic cardiac region using standard stereotactic techniques. The study also seeks to understand the underlying mechanisms of action of this treatment modality.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with an implanted ICD and a history of recurrent VT despite previous treatments.

Not a fit: Patients who are pregnant, have a history of thoracic radiation treatment, or suffer from interstitial pulmonary disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce the frequency of VT episodes and improve the quality of life for patients with refractory arrhythmias.

How similar studies have performed: Previous studies have shown promising results with stereotactic arrhythmia radiotherapy, indicating a significant reduction in VT episodes.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years
* Implanted ICD
* World Health Organization (WHO) / Eastern Cooperative Oncology Group (ECOG) performance status grade 0-3 in the past 3 months (from fully active to capable of limited self-care, see below for full explanation)
* At least 3 episodes of treated VT within the last 3 months
* Recurrence of VT after

  * Failed or intolerant to least one class 1 or class 3 anti-arrhythmic drug AND
  * At least one catheter ablation procedure OR considered to be unsuitable for a catheter ablation procedure (e.g. no sufficient vascular access, considered unfit to undergo prolonged general anesthesia, comorbid conditions resulting in unacceptable peri-procedural risks)
* Able and willing to undergo all necessary evaluations, treatment and follow-up for the study and of follow-up thereafter

Exclusion Criteria:

* Pregnancy
* History of radiation treatment in the thorax or upper abdominal region
* Interstitial pulmonary disease

Where this trial is running

Amsterdam, North Holland

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Ventricular Tachycardia, Arrythmia, Cardiac, Ventricular Arrhythmias, Cardiac Radioablation, Stereotactic Radiotherapy, Stereotactic Arrhythmia Radiotherapy, Stereotactic body radiotherapy, Cardiac ablative radiotherapy

Last reviewed 2026-05-15 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.