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Premature Ventricular Contraction(NoVa-PVC)NCT05341544

Non-invasive Vagal Stimulation for Frequent Premature Ventricular Complexes

A study testing Parasym device in people with Premature Ventricular Contraction, run by Northwell Health at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A prospective sham-controlled randomized clinical trial to assess the effect of low-level tragus stimulation (LLTS) in patients with frequent premature ventricular complexes (PVCs) Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Premature Ventricular Contraction
What is being tested?
Parasym device
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
60 participants
Where
2 sitesUnited States
Study dates
22 Aug 2022to 6 Apr 2026
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults (>18 years old) but < 80 years of age
  • Symptomatic PVCs or asymptomatic PVCs with a burden > 5%
  • Intolerant to or unwilling to take beta blockers and nondihydropyridine calcium channel blockers or beta blockers and nondihydropyridine calcium channel blockers have proved ineffective

Who cannot join

  • Ischemic cardiomyopathy with LVEF < 40%
  • Severe heart failure (New York Heart Association Class III, or IV) or valve disease
  • Sustained ventricular tachycardia
  • Structural heart disease or myocardial scar
  • Pregnancy or nursing
  • Patients with known thyroid issues, on renal dialysis.
Show all 12Show fewer
  • Patients with prolonged first-degree block, high degree AV block (2nd or 3rd degree), bivascular block and documented sick sinus syndrome
  • Hypotension due to autonomic dysfunction
  • Patients with cardiac implantable electronic device (ICD or PPM) , hearing aid implants or any implanted metallic or electronic device
  • Patients who have had prior cervical vagotomy
  • Patients with skin on the tragus that is broken or cracked
  • Patients with a history of baseline cardiac disease or atherosclerotic cardiovascular disease, including congestive heart failure (CHF), known severe coronary artery disease or recent myocardial infarction (within 5 years) and patients diagnosed with narrowing of the arteries (carotid atherosclerosis)

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Northwell Health

    New York, New York, 10075

  • University of Oklahoma Health Sciences Center

    Oklahoma City, Oklahoma, 73104

Other trials in United States

About this study

Official title: Non-invasive Vagal Stimulation for Frequent Premature Ventricular Complexes (NoVa-PVC)

A prospective sham-controlled randomized clinical trial to assess the effect of low-level tragus stimulation (LLTS) in patients with frequent premature ventricular complexes (PVCs)

Read the detailed description

This is a two-center, prospective, cross-over, sham-controlled, double-blinded, randomized clinical trial. All the patients will receive a cardiac event monitor at baseline for 28 days, the patient will switch the ePatch after 14 days . Patients will be allocated to either LLTS first and then sham-stimulation, or sham-stimulation first and then LLTS. Each treatment period (sham-stimulation and LLTS) will last 10 days. The Parasym device will be used, and the patients will receive LLTS or sham-stimulation for 1 hour daily. The wash-out period between the two treatments will last 8 days. Patients will be continually monitored via event monitor for 28 days in duration.

Being tested
Parasym device, Sham device
Medical subject headings
Ventricular Premature Complexes

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Parasym deviceDevice

    The study will utilize the Parasym device (Parasym Health, London, United Kingdom) paired with compatible electrodes to administer the transcutaneous LLTS.

  • Sham deviceDevice

    Sham device

Study groups in NCT05341544
Study groupRoleWhat they receive
ActiveExperimentalPatients will receive 1 hour of active low level tragus stimulation daily for 10 days.
Receives: Device: Parasym device
ShamSham comparatorPatients will receive 1 hour of sham low level tragus stimulation daily for 10 days.
Receives: Device: Sham device

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. PVC Burden

    Daily PVC Count by event monitor

    Measured: 28 days

Secondary outcomes (3)
  1. Quality of life survey

    SF 36 QOL Score

    Measured: 28 days

  2. Heart Rate Variability

    Daily HRV

    Measured: 28 days

  3. PVC Morphology

    Fluctuation in PVC Morphology by event monitor

    Measured: 28 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Apr 2022
  2. Study start22 Aug 2022
  3. Primary completion6 Apr 2026
  4. Study completion6 Apr 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
Patients will be allocated to either LLTS first and then sham-stimulation, or sham-stimulation first and then LLTS.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05341544
Sponsor's protocol ID
22-0076
Acronym
(NoVa-PVC)
Status last verified
Apr 2026
First submitted
18 Apr 2022
Last updated
7 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided

Publications

  • Zafeiropoulos S, Coleman K, Kogan J, Varrias D, Leavitt J, Bekiaridou A, Zanos T, Zanos S, Stavrakis S, Mountantonakis S. Transcutaneous Electrical Vagus Nerve Stimulation to Suppress Premature Ventricular Contractions: A Crossover, Randomized Clinical Trial (NoVa-PVC). JACC Clin Electrophysiol. 2025 Aug;11(8):1699-1707. doi: 10.1016/j.jacep.2025.04.011. Epub 2025 Apr 24.

    PubMed 40392172

Questions about this trial

What is this clinical trial studying?

A study testing Parasym device in people with Premature Ventricular Contraction, run by Northwell Health at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

PVC Burden (time frame: 28 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05341544, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Apr 2026.

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