NCT03218137

Brief Summary

Unblinded, controlled, non-randomized, mechanistic study to determine whether physiological mechanisms underlying PVC are sensitive to adenosine. One hundred subjects undergoing clinically-indicated, standard-of-care cardiac electrophysiology study (EPS) procedure for PVCs will receive adenosine and/or verapamil to learn if their arrhythmias are inducible similarly to sustained ventricular tachycardia.

Trial Health

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Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Feb 2017

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 13, 2017

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

June 29, 2017

Completed
15 days until next milestone

First Posted

Study publicly available on registry

July 14, 2017

Completed
8.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

August 3, 2025

Status Verified

July 1, 2025

Enrollment Period

8.9 years

First QC Date

June 29, 2017

Last Update Submit

July 30, 2025

Conditions

Keywords

Subjectsdiagnosed

Outcome Measures

Primary Outcomes (2)

  • Effects of Adenosine on premature ventricular contractions (PVCs) as measured by EKG;

    The metrics that will be collected will be: * Baseline frequency of premature ventricular contractions (PVCs) * Frequency of premature ventricular contractions (PVCs) during adenosine administration

    baseline

  • Effects of verapamil on premature ventricular contractions (PVCs) as measured by EKGs.

    The metrics that will be collected will be: * Baseline frequency of premature ventricular contractions (PVCs) * Frequency of premature ventricular contractions (PVCs) during verapamil administration

    baseline

Study Arms (1)

Adenosine/ Verapamil Arm

OTHER

Adenosine: 0.84 mg/kg IV (140 mcg/kg/minute IV for 6 minutes) Verapamil: 0.15 mg/kg IV Adenosine is known to terminate ventricular arrhythmias that are due to triggered activity (ref Lerman). To study the effects of adenosine on PVC, the investigators will administer Verapamil to slow down the heart initially and adenosine after catheters are introduced to patients who are being treated for symptomatic PVC and have consented to treatment with an invasive electrophysiology study and catheter ablation.

Drug: Adenosine

Interventions

Adenosine: 0.84 mg/kg (140 mcg/kg/minute IV for 6 minutes) Verapamil 0.15 mg/kg

Also known as: Verapamil 0.15 mg/kg
Adenosine/ Verapamil Arm

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of premature ventricular contractions (PVCs)
  • Scheduled to undergo an electrophysiology study with the intention of performing cardiac ablation for the treatment of PVCs
  • Male or female between the ages of 18 and 70 years
  • Capable of giving informed consent

You may not qualify if:

  • Any structural heart disease
  • Coronary artery disease (≥ 70% stenosis)
  • Current treatment with anti-arrhythmic drugs
  • Pregnant
  • Asthma (if administering adenosine)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Weill Cornell Medicine

New York, New York, 10065, United States

RECRUITING

MeSH Terms

Conditions

Ventricular Premature ComplexesDisease

Interventions

AdenosineVerapamil

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

Purine NucleosidesPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsNucleosidesNucleic Acids, Nucleotides, and NucleosidesRibonucleosidesPhenethylaminesEthylaminesAminesOrganic Chemicals

Study Officials

  • James E Ip, M.D

    Weill Medical College of Cornell University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Dolores T Reynolds, BSN

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 29, 2017

First Posted

July 14, 2017

Study Start

February 13, 2017

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

August 3, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations