NCT05341544

Brief 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)

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 18, 2022

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 22, 2022

Completed
4 months until next milestone

Study Start

First participant enrolled

August 22, 2022

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 22, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 22, 2025

Completed
Last Updated

September 15, 2025

Status Verified

September 1, 2025

Enrollment Period

3.3 years

First QC Date

April 18, 2022

Last Update Submit

September 11, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • PVC Burden

    Daily PVC Count by event monitor

    28 days

Secondary Outcomes (3)

  • Quality of life survey

    28 days

  • Heart Rate Variability

    28 days

  • PVC Morphology

    28 days

Study Arms (2)

Active

EXPERIMENTAL

Patients will receive 1 hour of active low level tragus stimulation daily for 10 days.

Device: Parasym device

Sham

SHAM COMPARATOR

Patients will receive 1 hour of sham low level tragus stimulation daily for 10 days.

Device: Sham device

Interventions

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

Active

Sham device

Sham

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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

You may not qualify if:

  • 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.
  • 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)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Northwell Health

New York, New York, 10075, United States

RECRUITING

University of Oklahoma Health Sciences Center

Oklahoma City, Oklahoma, 73104, United States

NOT YET RECRUITING

Related Publications (1)

  • 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.

MeSH Terms

Conditions

Ventricular Premature Complexes

Condition Hierarchy (Ancestors)

Cardiac Complexes, PrematureArrhythmias, CardiacHeart DiseasesCardiovascular DiseasesCardiac Conduction System DiseasePathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Kristie Coleman, RN

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Patients will be allocated to either LLTS first and then sham-stimulation, or sham-stimulation first and then LLTS.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director, Cardiac Electrophysiology, Lenox Hill Hospital

Study Record Dates

First Submitted

April 18, 2022

First Posted

April 22, 2022

Study Start

August 22, 2022

Primary Completion

December 22, 2025

Study Completion

December 22, 2025

Last Updated

September 15, 2025

Record last verified: 2025-09

Locations