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- Klinische proef NCT00922857
Influence of Muscular Atrophy on Biological and Functional Benefit of Respiratory Rehabilitation in Patients With Chronic Respiratory Failure (INSPIRE)
The prevalence of chronic respiratory failure (CRF) is increasing worldwide and will become the 3rd cause of death by 2020. At the stage of the disease requiring ventilatory assistance, this relates to 50,000 patients in France, life expectancy is very limited, and quality of life is poor.
CRF led to a reduction in muscle mass, which is found in 35 and 55% of patients, in some to a profound cachexia. A reduced fat free mass (FFM) is a factor associated with a poor tolerance to exercise and an halved survival. The exact causes and mechanisms leading to cachexia are not yet established. Recently, a chronic inflammatory condition has been quoted as a putative cause. This chronic inflammation would involve the molecular mechanisms leading to poor regulation of the balance of synthesis / protein degradation in muscle. A decrease in plasma and muscle amino acids was found among patients with a low FFM.. In addition, a decrease of plasma levels of some anabolic hormones, GH and androgens or IGF-1 has been found that could explain a lack of protein synthesis.
It is now well established that respiratory rehabilitation, including a program of exercise reconditioning, increases tolerance to exercise and improve the quality of life. Besides the classical type of endurance exercises stimulating the cardio-respiratory system, it is suggested to add resistance exercises. Several studies have reported the benefit of this strategy but the link with intracellular molecular pathways has not been described; moreover, it is unknown whether the existence of an initial muscular atrophy influences the gain in muscle strength/mass.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
We therefore propose to explore the effect of a rehabilitation program including endurance and resistance exercises on muscle biopsies.
The present study should help to know the molecular pathways implicated in muscle atrophy in CRF patients and to assess their evolution with rehabilitation. This could lead to individualized recommendation for exercise program according to the muscle mass of the patients.
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Saint-etienne, Frankrijk, 42055
- Chu de Saint-Etienne
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Prescription of an exercise training program as part of a respiratory rehabilitation
- Existence of an obstructive ventilatory deficit
- Signature of written consent
Exclusion Criteria:
- Exacerbation of COPD
- Patient with a long-term oxygen therapy
- Active smoker
- Lower limb locomotor limitation preventing to achieve the full respiratory rehabilitation program
- Lower limbs arteritis
- Myocardial infarction or pulmonary embolism of less than 3 months
- Long term anticoagulant
- Type 1 diabetes
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Fundamentele wetenschap
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Experimenteel: Respiratory rehabilitation
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The training begins 5 days after the initial assessment.
It consists of 3 weekly sessions for 8 consecutive weeks, including the following activities interspersed with periods of rest, according to the needs of patients
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
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Gain in exercise tolerance (relative variation of the 6 min walking distance and maximal exercise capacity on bicycle (peak VO2) combined with activation of the pathway for muscle protein synthesis
Tijdsspanne: before and at the outcome of the reconditioning program in the effort
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before and at the outcome of the reconditioning program in the effort
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Secundaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
---|---|
Quality of life assessed by questionnaire
Tijdsspanne: before and at the outcome of the reconditioning program in the effort
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before and at the outcome of the reconditioning program in the effort
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Medewerkers en onderzoekers
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Frédéric COSTES, MD PhD, Chu de Saint-Etienne
Publicaties en nuttige links
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
- 0408079
- 2005/0023 (Andere identificatie: DGS)
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