NCT05170607

Investigation of Specific Biomarkers in Patients With Atrial Fibrillation Who Undergo Interventional Treatment

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 120 (estimated)
• Sponsor: National Medical Research Center for Therapy and Preventive Medicine · Other Government
• Sex: All
• Age: 18 Years – 85 Years
• Healthy volunteers: —

Summary

The two main mechanisms for atrial fibrillation (AF) recurrence after cryoablation include Pulmonary vein (PV) reconnection and the presence of non-PV associated arrhythmic focuses. The aim of this study is to reveal the specific biomarkers by antibody microarrays.

Detailed description

One hundred twenty patients with atrial fibrillation will participate in the study. They will be divided into three groups. 1. Patients with AF recurrence after the first procedure but with isolated pulmonary veins at the beginning of the second AF ablation b)patients with AF recurrence after repeat PV ablation. 2. Patients with PV-associated atrial fibrillation. The group will be included patients with freedom of atrial fibrillation after PV isolation (first or repeat procedure). 3. Healthy volunteers Groups would be formed from patients who previously underwent atrial fibrillation ablations and whose blood samples have been taken and placed in a biobank before interventional treatment. The first step will include proteomic serum profiling using antibody microarrays in ten subjects will be split into 3 groups. The second step will include validation of selected protein biomarkers, in the total cohort (N=120).

Conditions

• Atrial Fibrillation

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Proteomic analysis by antibody microarrays	Proteomic analysis by antibody microarrays can be used to identify novel biomarkers and to investigate various signaling pathways including protein phosphorylation and protein-protein interactions. Microchips are manufactured as a matrix of a number of immobilized antibodies covalently bound to the glass, membrane, or gel surfaces. Microchips are used for serum proteomic studies in patients with cardiovascular diseases and cancer

Timeline

• Start date: 2021-01-01
• Primary completion: 2023-12-31
• Completion: 2023-12-31
• First posted: 2021-12-28
• Last updated: 2023-03-14

Locations

1 site across 1 country: Russia