Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 85

Using venous ethanol to improve treatment for ventricular tachycardia

Official title: Venous Ethanol for Ischemic Left Ventricular Tachycardia

Run by The Methodist Hospital Research Institute · NCT05511246 · Data updated 2026-11-12

This study is testing if adding venous ethanol to standard heart treatment can help people with ventricular tachycardia feel better and reduce their chances of having problems in the future.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 85 Years
SexAll
Enrollment156 (estimated)
SponsorThe Methodist Hospital Research Institute
Academic / other
Locations1 site (Houston, Texas)
StatusRecruiting
StartedApril 12, 2023
Main results expectedDecember 12, 2027
Study endsDecember 12, 2028
Registry record updatedJuly 24, 2026
Trial IDNCT05511246 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 85 with ischemic cardiomyopathy and a history of ventricular tachycardia events.

Probably not a fit

Patients with severe renal impairment, very low left ventricular ejection fraction, or other significant comorbidities 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 clinical trial compares the effectiveness of standard catheter ablation with a novel approach that includes venous ethanol ablation for patients suffering from ischemic ventricular tachycardia. Participants will be randomized to receive either traditional endocardial catheter ablation alone or the combined treatment with venous ethanol targeting coronary veins. The study aims to assess the recurrence of ventricular tachycardia, procedural complications, hospitalizations, and mortality over a 12-month follow-up period. This approach seeks to enhance the reach of ablation therapy to improve patient outcomes.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce the recurrence of ventricular tachycardia and improve overall survival rates for patients with ischemic cardiomyopathy.

How similar studies have gone: While catheter ablation is a well-established treatment, the use of venous ethanol in this context is a novel approach that has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male and female, ages of 18 and 85 years and with a prior ICD implant
* Diagnosed with ischemic cardiomyopathy: Prior myocardial infarction (pathological Q waves or imaging evidence of regional myocardial akinesis/thinning in the absence of a non-ischemic cause)
* One of the following VT events (within last 6 months): a) ≥3 episodes of VT treated with anti-tachycardia pacing (ATP) or anti-arrhythmic drugs; b) ≥1 appropriate ICD shocks; c) ≥3 VT episodes within 24 hr; d) sustained VT below detection rate of the ICD documented by EKG/cardiac monitor
* Patients deemed candidates for RF ablation of VT
* Able and willing to comply with pre-, post-, and follow-up requirements
* Willing to sign the informed consent

Exclusion Criteria:

* Creatinine clearance \<25 cc/min (using Cockcroft-Gault equation) except for patients on dialysis. (Contrast induced nephropathy is irrelevant in end-stage renal disease patients on dialysis, in whom the concern for contrast-induced renal dysfunction is not there since there is no chance of further kidney damage). Additionally, patients on dialysis will be excluded from the imaging sub-study.
* Left ventricular (LV) ejection fraction ≤10%
* Mobile LV thrombus on echocardiography
* Absence of vascular access to the LV
* Disease process likely to limit survival to \<12 months
* New York Heart Association class IV heart failure
* Cardiac surgery within the past 2 months (unless VT was incessant),
* Acute coronary syndrome in the past 2 months (acute thrombus diagnosed by coronary angiography, or dynamic ST segment changes demonstrated on EKG)
* Another reversible cause of VT (e.g. electrolyte abnormalities, drug-induced arrhythmia)
* Severe aortic stenosis or mitral regurgitation with a flail leaflet
* Pregnancy
* Unwilling or unable to provide informed consent
* Covid-19 positive testing within 14 days of randomization procedure
* Enrolled, or planning to get enrolled, in another research study during his/her participation on the Velvet trial

Where it's running

  • Houston Methodist Hospital
    Houston, Texas, United States
    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.