Colchicine After Electrocardioversion for Atrial Fibrillation

NCT ID: NCT05890664

Last Updated: 2025-05-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

416 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-14

Study Completion Date

2027-03-31

Brief Summary

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The purpose of this study is to investigate whether a 3 month treatment course of low-dose Colchicine decreases the recurrence of Atrial fibrillation (AF) after electrocardioversion (ECV) in patients with AF.

Detailed Description

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Atrial fibrillation is the most common cardiac arrhythmia worldwide and is associated with an increased risk of heart failure, stroke and death. Over the next 40 years the investigators expect another increase in the prevalence of atrial fibrillation with a risk of 1:3 in people over 65 years to develop atrial fibrillation. Electroconversion can occur in patients with atrial fibrillation reestablish sinus rhythm acutely with a controlled electrical shock. Unfortunately it is known however, that there is a short-term recurrence of atrial fibrillation in about 60%. This underlines that our current treatment options are inadequate. There is increasing evidence that inflammation is integral to initiation and maintenance of atrial fibrillation. Therefore, the researchers see inflammation as a possible therapeutic target to reduce the recurrence rate of atrial fibrillation after electroconversion. To test this hypothesis and to help patients, the investigators want to conduct the COLECTRO-AF study.

Conditions

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Atrial Fibrillation Cardiac Arrhythmia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Prospective, randomized, double-blind, placebo-controlled trial.
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors
A randomization list will be provided by the Clinical Trial Unit Basel to an unblinded person at the sponsor's site. The unblinded person will allocate the randomization numbers. Patients and research staff involved in patient recruitment, data management, outcome adjudication and data analyses will fully be blinded

Study Groups

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Experimental Group

Study participants in the active study arm will receive a daily oral dose of 0.5 mg Colchicine for 3 months without a loading dose. The dose is recommended to be taken in the morning. There is no deviation from the usual treatment intake.

Group Type EXPERIMENTAL

Colchicine

Intervention Type DRUG

Colchicine 0.5 mg (oral) once daily for 90 days. The chemical name for colchicine is (S)-N-(5,6,7,9-tetrahydro-1,2,3,10-tetramethoxy-9 oxobenzol\[a\]heptalen-7-yl) acetamide.

Colchicine consists of pale yellow scales or powder. It is soluble in water, freely soluble in alcohol, and slightly soluble in ether.

Control Group

Study participants in the placebo group will receive a matched placebo.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Matched placebo. Both the active drug and placebo will look similarly. The route and mode of administration is also similar to the active group.

Interventions

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Colchicine

Colchicine 0.5 mg (oral) once daily for 90 days. The chemical name for colchicine is (S)-N-(5,6,7,9-tetrahydro-1,2,3,10-tetramethoxy-9 oxobenzol\[a\]heptalen-7-yl) acetamide.

Colchicine consists of pale yellow scales or powder. It is soluble in water, freely soluble in alcohol, and slightly soluble in ether.

Intervention Type DRUG

Placebo

Matched placebo. Both the active drug and placebo will look similarly. The route and mode of administration is also similar to the active group.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Age \>18 years
* ECG-documented AF prior to ECV
* Successful ECV with conversion of AF to sinus rhythm with persistent sinus rhythm ≥30 minutes after ECV
* Ability to give written informed consent

Exclusion Criteria

* AF persistence after cardioversion or early AF recurrence within 30 minutes after ECV
* Any other rhythm than AF before cardioversion
* Pulmonary vein isolation within 3 months prior to ECV or pulmonary vein isolation planned within 3 months after ECV
* Known intolerance or hypersensitivity to Colchicine
* Any other absolute indication for Colchicine intake
* Intake of a strong inhibitor of CYP3A4 or P-Glycoprotein (clarithromycin, erythromycin, telithromycin, cyclosporine, ketoconazole or itraconazole)
* Serious gastrointestinal disease (severe gastritis or diarrhea)
* Clinically overt hepatic disease
* Severe renal disease (eGFR\< 30ml/min/1.73m2)
* Clinically significant blood dyscrasia (e.g., myelodysplasia)
* Significant immunosuppression (e.g. due to transplantation or rheumatic disease)
* Pregnant or breastfeeding women, or women of child-bearing potential who do not use a highly effective form of birth control
* Life expectancy \<1 year
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Swiss Heart Foundation

OTHER

Sponsor Role collaborator

Fondation Machaon, Switzerland, Genf

UNKNOWN

Sponsor Role collaborator

Foundation for Cardiovascular Research Basel

UNKNOWN

Sponsor Role collaborator

University Hospital, Basel, Switzerland

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Philipp Krisai, PD Dr. med.

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Basel, Switzerland

Locations

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Cantonal Hospital Baselland (KSBL)

Bruderholz, Basel-Landschaft, Switzerland

Site Status RECRUITING

University Hospital Basel

Basel, , Switzerland

Site Status RECRUITING

University Hospital Bern

Bern, , Switzerland

Site Status RECRUITING

Lausanne University Hospital

Lausanne, , Switzerland

Site Status RECRUITING

Lucerne Cantonal Hospital

Lucerne, , Switzerland

Site Status RECRUITING

Cantonal Hospital Olten

Olten, , Switzerland

Site Status RECRUITING

Herzpraxis am Rhein

Rheinfelden, , Switzerland

Site Status RECRUITING

Solothurner Spitäler AG

Solothurn, , Switzerland

Site Status RECRUITING

Countries

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Switzerland

Central Contacts

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Philipp Krisai, PD Dr. med.

Role: CONTACT

+41 61 265 25 25

Facility Contacts

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Christian Maurer, Dr. med.

Role: primary

+41 61 436 21 90

Christian Sticherling, Prof.

Role: primary

+41 61 265 55 26

Philipp Krisai, PD Dr. med.

Role: backup

+41 61 265 25 25

Tobias Reichlin, Prof.

Role: primary

Etienne Pruvot, Prof. Dr.

Role: primary

+41 21 314 11 11

Ann-Kathrin Gamer, MD

Role: primary

+41 41 205 18 77

Frank-Peter Stephan, MD

Role: primary

+41 32 627 35 52

Flavio Scarcia, MD

Role: primary

+41 61 836 99 88

Frank-Peter Stephan, MD

Role: primary

+41 32 627 35 52

Other Identifiers

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2023-00548, kt21sticherling

Identifier Type: -

Identifier Source: org_study_id

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