Freezing out deadly heart rhythms: new device under study
NCT ID NCT06384599
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a device that uses extreme cold to destroy small areas of heart tissue causing ventricular tachycardia, a fast and dangerous heart rhythm. Up to 130 people with recurrent VT will receive the procedure and be followed for 6 months. The goal is to see if the treatment safely reduces episodes of VT and the need for ICD shocks.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- VT Cryoablation System (catheter, stylets, and console)
- What this could lead to
- If it works, this could offer a new way to control dangerous heart rhythms and reduce the need for ICD shocks.
- What could go wrong
- This is an early post-market study, not a large randomized trial. Risks include serious complications like heart perforation, stroke, or need for a pacemaker.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 130 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * IC 1 Male or female the ages of ≥ 18 years * IC 2 Planned ablation procedure according to the indication for use of the Adagio VT Cryoablation System * IC 3 Subject willing to comply with study requirements and give informed consent * IC4 Subject has or will be receiving an ICD prior to hospital discharge Exclusion Criteria: * EC 1 In the opinion of the investigator, any known contraindication to a ventricular tachycardia procedure with the Adagio VT Cyroablation System as indicated in the device Instructions For Use (IFU) * EC 2 Subject is enrolled in a study that has not been approved for concurrent enrollment by the sponsor * EC 3 Any other condition that, in the judgement of the investigator, makes the patient a poor candidate for this procedure, the study or compliance with the protocol (includes vulnerable patient population, mental illness, addictive disease, terminal illness with a life expectancy of less than six months, extensive travel away from the research center)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Essex Cardiothoracic Centre
Basildon, Essex, SS16 5NL, United Kingdom
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a new electric pulse technique tame Post-Heart-Attack heart rhythms faster?
- Can a higher dose of heart radiation stop dangerous rhythms?
- Can two advanced heart maps guide a more precise fix for dangerous arrhythmias?
- Could a short course of steroids calm a dangerous heart rhythm?
- CT scan roadmap may improve heart ablation success
- 4,000 heart patients to be tracked after ablation procedure