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- Klinische proef 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.
Studie Overzicht
Gedetailleerde beschrijving
- 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.
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
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.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: training
12 weeks (2 x 6 weeks) of combined exercise training programme (supervised)
|
Andere namen:
|
|
Geen tussenkomst: Control
Continued usual care, habitual lifestyle
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
insulin sensitivity (insulin profile)
Tijdsspanne: change from baseline to 12 weeks
|
glucose and insulin concentration measurements in blood during oral glucose tolerance test
|
change from baseline to 12 weeks
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Exercise tolerance
Tijdsspanne: change from baseline to 12 weeks
|
maximal cardiopulmonary exercise test on a bicycle ergometer
|
change from baseline to 12 weeks
|
|
HbA1c, blood lipids, BNP
Tijdsspanne: change from baseline to 12 weeks
|
change from baseline to 12 weeks
|
|
|
Muscle strength
Tijdsspanne: change from baseline to 12 weeks
|
maximal strength and strength endurance tested on a isokinetic dynamometer
|
change from baseline to 12 weeks
|
|
Body composition
Tijdsspanne: change from baseline to 12 weeks
|
dual energy x-ray absorptiometry
|
change from baseline to 12 weeks
|
|
cardiac function
Tijdsspanne: change from baseline to 12 weeks
|
echocardiography
|
change from baseline to 12 weeks
|
|
Health-related quality of life
Tijdsspanne: change from baseline to 12 weeks
|
MLHFQ and Eq5d
|
change from baseline to 12 weeks
|
Medewerkers en onderzoekers
Sponsor
Medewerkers
Onderzoekers
- Studie stoel: An Stevens, dra., Hasselt University
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 11.11/cardio11.01
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