COUREUR Study Myocardial Inflammation in Cyclist Part 2

NCT ID: NCT05138003

Last Updated: 2023-10-12

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

COMPLETED

Clinical Phase

NA

Total Enrollment

19 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-07-01

Study Completion Date

2023-10-01

Brief Summary

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The study will evaluate myocardial inflammation in cyclists after high intense and sustained exercise. Our hypothesis is that strenuous exercise in recreational cyclists may be associated with myocardial inflammation. Myocardial fibrosis in asymptomatic athletes is associated with life-threatening arrhythmic events and sudden death. Although myocarditis seems to be the most likely underlying cause, it remains unclear if strenuous and sustained physical exercise can cause myocardial inflammation with development of myocyte necrosis and possibly myocardial fibrosis in athletes.

Nineteen recreational cyclists performing "L'ETAPE DU TOUR (EDT) de France" a cycling ride (175 km, 3600 m of positive altitude difference) on July 4 2021 will be included in this study. Each participant will complete a detailed questionnaire detailing their training history. All participants will have exercise testing approximately 1 week before the EDT stage to set aerobic and anaerobic gas exchange thresholds, as well as VO2max.

In part 2 of the study cardiac MRI will be performed at rest before the EDT cycling ride completion. An ECG registration using a RootiRx will be realized during and up to 6 hours after the cycling ride. An echocardiography and cardiac MRI will be repeated in each cyclist between 3 and 6 hours after EDT cycling ride completion. A blood sample will be obtained at that time after the ride. This time point is chosen based on the highest troponin release that 3 to 6 hours post-exercise would allow a sufficient amount of time for inflammation to develop and be detectable, corresponding with the time when cardiac Troponin T is typically detectable and representing the liberation of enzymes from damaged myocytes.

Finally, a third cardiac MRI will be repeated 24 hours after start of the cycling ride to verify the evolution of possible inflammation over this time period.

Detailed Description

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Conditions

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Myocardial Inflammation

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Recreational cyclists performing the 'étape du tour (EDT) de France 2021

Group Type OTHER

cardiac MRI

Intervention Type DIAGNOSTIC_TEST

T1 and T2 relaxation times will be evaluated on basal and mid-cavity SA maps; a single ROI measurement in the septum will be manually drawn sufficiently far from tissue interfaces to avoid the impact of susceptibility artifacts from adjacent tissues. The differences in T1 and T2 relaxation times between rest and post-exercise will be analyzed.

Cardiac ventricular volumes, function and LV mass will also be quantified.

Echocardiography

Intervention Type DIAGNOSTIC_TEST

Measurements of mass, volumes and function will be obtained of both the left and right ventricles enabling comparisons with cardiac MRI and traditional echo measures.

RootiRx for the ECG monitoring during the cycling ride

Intervention Type DIAGNOSTIC_TEST

The final report will include the amount of recorded beats, the average heart rate, the maximum and minimum heart rate, the amount of cardiac pauses defined as an interruption in the ventricular rate \> 2 seconds. Reported atrial events include atrial ectopic beats and supraventricular tachycardia and ventricular events include ventricular ectopic beats, doublets, triplets, bigeminy, trigeminy and ventricular tachycardia.

Blood sample

Intervention Type DIAGNOSTIC_TEST

Blood sample will be performed 3 to 6 hours after the stage to analyze high-sensitivity cardiac Troponin T (high-sensitivity) levels, Creatine Phosphokinase (CPK) to eliminate the hypothesis of Troponin elevation induced by rhabdomyolysis and C-reactive Protein to corroborate the inflammatory aspect if there is any.

Interventions

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cardiac MRI

T1 and T2 relaxation times will be evaluated on basal and mid-cavity SA maps; a single ROI measurement in the septum will be manually drawn sufficiently far from tissue interfaces to avoid the impact of susceptibility artifacts from adjacent tissues. The differences in T1 and T2 relaxation times between rest and post-exercise will be analyzed.

Cardiac ventricular volumes, function and LV mass will also be quantified.

Intervention Type DIAGNOSTIC_TEST

Echocardiography

Measurements of mass, volumes and function will be obtained of both the left and right ventricles enabling comparisons with cardiac MRI and traditional echo measures.

Intervention Type DIAGNOSTIC_TEST

RootiRx for the ECG monitoring during the cycling ride

The final report will include the amount of recorded beats, the average heart rate, the maximum and minimum heart rate, the amount of cardiac pauses defined as an interruption in the ventricular rate \> 2 seconds. Reported atrial events include atrial ectopic beats and supraventricular tachycardia and ventricular events include ventricular ectopic beats, doublets, triplets, bigeminy, trigeminy and ventricular tachycardia.

Intervention Type DIAGNOSTIC_TEST

Blood sample

Blood sample will be performed 3 to 6 hours after the stage to analyze high-sensitivity cardiac Troponin T (high-sensitivity) levels, Creatine Phosphokinase (CPK) to eliminate the hypothesis of Troponin elevation induced by rhabdomyolysis and C-reactive Protein to corroborate the inflammatory aspect if there is any.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Recreational cyclists performing the 'étape du tour (EDT) de France 2021 ride

Exclusion Criteria

* presence of pre-existing cardiovascular or pulmonary diseases, hypertension, diabetes, peripheral vascular diseases, any inflammatory or auto-immune diseases, active SARS-CoV-2 infection and the intake of anti-inflammatory drugs.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Centre Hospitalier Universitaire de Nice

OTHER

Sponsor Role collaborator

Jessa Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Jessa Hospital

Hasselt, , Belgium

Site Status

Centre Hospitalier Universitaire de Nice

Nice, , France

Site Status

Countries

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Belgium France

References

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Ghekiere O, Herbots L, Peters B, Berg BV, Dresselaers T, Franssen W, Padovani B, Ducreux D, Ferrari E, Nchimi A, Demanez S, De Bosscher R, Willems R, Heidbuchel H, La Gerche A, Claessen G, Bogaert J, Eijnde BO. Exercise-induced myocardial T1 increase and right ventricular dysfunction in recreational cyclists: a CMR study. Eur J Appl Physiol. 2023 Oct;123(10):2107-2117. doi: 10.1007/s00421-023-05259-4. Epub 2023 Jul 22.

Reference Type DERIVED
PMID: 37480391 (View on PubMed)

Other Identifiers

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2021/051

Identifier Type: -

Identifier Source: org_study_id

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