NCT05965375

Brief Summary

The investigation of biomarkers for immune status and metabolic state, as well as host microbiota composition, in patients with ventricular arrhythmias before and after radiofrequency ablation, can provide new insights for specific and personalized treatment. This can help establish early prediction and prognosis models and provide a basis for clinically effective diagnosis and treatment.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
5,000

participants targeted

Target at P75+ for all trials

Timeline
13mo left

Started Dec 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
not yet 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

Study Progress56%
Dec 2024May 2027

First Submitted

Initial submission to the registry

July 6, 2023

Completed
22 days until next milestone

First Posted

Study publicly available on registry

July 28, 2023

Completed
1.4 years until next milestone

Study Start

First participant enrolled

December 31, 2024

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2027

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2027

Last Updated

April 4, 2024

Status Verified

April 1, 2024

Enrollment Period

2.2 years

First QC Date

July 6, 2023

Last Update Submit

April 2, 2024

Conditions

Keywords

Ventricular ArrhythmiaPrognosis

Outcome Measures

Primary Outcomes (1)

  • Change in the incidence of MACCE

    Major adverse cardiovascular and cerebrovascular events, including myocardial infarction, stroke, vessel revascularization and all-cause death. The MACCE will be assessed from the medical records.

    3,6 months,1,3,5 years after enrollment.

Secondary Outcomes (4)

  • Change in the incidence of myocardial infarction

    3,6 months,1,3,5 years after enrollment.

  • Change in the incidence of stroke

    3,6 months,1,3,5 years after enrollment.

  • Change in the incidence of vessel revascularization

    3,6 months,1,3,5 years after enrollment.

  • Change in the incidence of all-cause death

    3,6 months,1,3,5 years after enrollment.

Study Arms (5)

Occasional premature ventricular contractions group

Premature ventricular contractions (PVCs) occur when an electrical impulse originates from an ectopic focus within the ventricle or the interventricular septum, causing premature depolarization of the ventricle before the impulse from the sinoatrial node has reached the ventricle. Occasional PVCs refer to PVCs that occur less than 6 times per minute.

Other: Observational; No Interventions were given.

Frequent premature ventricular contractions group

Premature ventricular contractions (PVCs) occur when an electrical impulse originates from an ectopic focus within the ventricle or the interventricular septum, causing premature depolarization of the ventricle before the impulse from the sinoatrial node has reached the ventricle. Frequent PVCs refer to PVCs that occur more than 6 times per minute.

Other: Observational; No Interventions were given.

Short runs of ventricular tachycardia group

Premature ventricular contractions (PVCs) occur when an electrical impulse originates from an ectopic focus within the ventricle or the interventricular septum, causing premature depolarization of the ventricle before the impulse from the sinoatrial node has reached the ventricle. Short runs of ventricular tachycardia refer to three or more consecutive PVCs that occur within 30 seconds.

Other: Observational; No Interventions were given.

Sustained ventricular tachycardia group

Sustained ventricular tachycardia (VT) is defined as ventricular arrhythmia that lasts for at least 30 seconds and has a heart rate exceeding 100 bpm, or requires termination before 30 seconds due to hemodynamic instability.

Other: Observational; No Interventions were given.

Ventricular fibrillation group

Ventricular fibrillation refers to the complete disappearance of QRS waves, ST segments, and T waves in the ECG, replaced by different shapes, varying amplitudes, and extremely irregular ventricular fibrillation waves.

Other: Observational; No Interventions were given.

Interventions

Observational; No Interventions were given.

Frequent premature ventricular contractions groupOccasional premature ventricular contractions groupShort runs of ventricular tachycardia groupSustained ventricular tachycardia groupVentricular fibrillation group

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients with ventricular premature beats, ventricular tachycardia, or ventricular fibrillation detected by regular surface twelve-lead electrocardiogram or Holter.

You may qualify if:

  • Patients with ventricular premature beats, ventricular tachycardia, or ventricular fibrillation detected by regular surface twelve-lead electrocardiogram or Holter.

You may not qualify if:

  • Age \<18 or \>80 years old;
  • Patients with autoimmune diseases or immune deficiencies, or those who have used immunosuppressive or immune modulating agents in the past 3 months;
  • Platelet count \<100Ă—10\^9/L or functional platelet defects;
  • Congenital or acquired coagulation or bleeding disorders;
  • Patients with a history of organ transplantation or are preparing to receive organ transplantation;
  • Unwilling to sign an informed consent or cooperate with the examination.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

First Affiliated Hospital of Xian Jiantong University

Xi'an, Shaanxi, 710061, China

Location

Biospecimen

Retention: SAMPLES WITH DNA

Blood, feces and urine.

Study Officials

  • Guoliang Li

    First Affiliated Hospital Xi'an Jiaotong University

    PRINCIPAL INVESTIGATOR
  • Chaofeng Sun

    First Affiliated Hospital Xi'an Jiaotong University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 6, 2023

First Posted

July 28, 2023

Study Start

December 31, 2024

Primary Completion (Estimated)

March 1, 2027

Study Completion (Estimated)

May 31, 2027

Last Updated

April 4, 2024

Record last verified: 2024-04

Locations