- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT02000479
Influence of Exercise Therapy on Insulin Resistance in Patients With Heart Failure
The purpose of this study is to investigate the effects of a combined training programme on insulin resistance, exercise tolerance, muscle strength, body composition and cardiac function in chronic heart failure patients.
It is assumed that the above mentioned clinical parameters will improve due to physical exercise.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
- Background and study aims During the last decades, the prevalence of (pre)diabetes but also of chronic heart failure (CHF) has increased dramatically. Somehow, both conditions are linked, but the mechanisms involved have not been completely clarified yet. It is clear that the presence of (pre)diabetes in CHF patients affects morbidity and mortality. Although feasibility, safety and beneficial effects of exercise training in CHF are generally acknowledged, its effects on insulin resistance are not well understood. Therefore, the presented study aims to investigate the effect of ET on insulin resistance and the possible link with cardiac function, exercise tolerance, muscle strength and body composition in CHF patients.
What does the study involve?
A randomized controlled study (n=30) will be performed over a period of 12 weeks. Following study inclusion, baseline measurements will be performed in 1 week. They include:
- a maximal exercise test on a bicycle ergometer to assess exercise tolerance,
- two oral glucose tolerance tests to assess fasting and post-exercise insulin resistance,
- a venous blood sample to determine HbA1c, blood lipids, BNP,
- a muscle strength measurement on a isokinetic dynamometer,
- assessment of body composition via dual energy x-ray absorptiometry,
- cardiac echography,
- questionnaires to assess health-related quality of life,
- a questionnaire (IPAQ) and a pedometer (3 days) to assess physical activity. Following baseline measurements, subjects will be randomized to a control group (CON, n=10) and an exercise intervention group (EX, n=20), matching for gender and reduced/preserved ejection fraction and glucose tolerance. Hereafter, CON will receive usual care and will be advised to maintain their normal lifestyle, EX subjects will be enrolled in a 12-week training program. Following 6 (MID) and 12 (POST) weeks of exercise training including progressive training load adaptations, baseline measurements will be repeated in all patients.
What are the possible benefits and risks of participating?
- Benefits: patients receive a free training program with personal and professional supervision. After completing the study, they receive a report with personal results and evaluation of training effects.
- Risks: the usual risks of exercise tolerance testing and exercise training in a CHF population are limited because training sessions are held in the supervised conditions of the Jessa hospital and because training characteristics are according to guidelines of the European Society of Cardiology. Exposure to x-rays during body composition assessment is very low, almost negligible.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Enfant
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- diagnosis of chronic heart failure for at least 6 months
- clinically stable (not hospitalized) for more than 3 months prior to the onset of the study
- optimal medical therapy.
Exclusion Criteria:
- any contra-indication for exercise therapy,
- glucose lowering medical therapy,
- active lifestyle with regular physical activity.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: training
12 weeks (2 x 6 weeks) of combined exercise training programme (supervised)
|
Autres noms:
|
|
Aucune intervention: Control
Continued usual care, habitual lifestyle
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
insulin sensitivity (insulin profile)
Délai: change from baseline to 12 weeks
|
glucose and insulin concentration measurements in blood during oral glucose tolerance test
|
change from baseline to 12 weeks
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Exercise tolerance
Délai: change from baseline to 12 weeks
|
maximal cardiopulmonary exercise test on a bicycle ergometer
|
change from baseline to 12 weeks
|
|
HbA1c, blood lipids, BNP
Délai: change from baseline to 12 weeks
|
change from baseline to 12 weeks
|
|
|
Muscle strength
Délai: change from baseline to 12 weeks
|
maximal strength and strength endurance tested on a isokinetic dynamometer
|
change from baseline to 12 weeks
|
|
Body composition
Délai: change from baseline to 12 weeks
|
dual energy x-ray absorptiometry
|
change from baseline to 12 weeks
|
|
cardiac function
Délai: change from baseline to 12 weeks
|
echocardiography
|
change from baseline to 12 weeks
|
|
Health-related quality of life
Délai: change from baseline to 12 weeks
|
MLHFQ and Eq5d
|
change from baseline to 12 weeks
|
Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chaise d'étude: An Stevens, dra., Hasselt University
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 11.11/cardio11.01
Informations sur les médicaments et les dispositifs, documents d'étude
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