Antioxidants and Pulmonary Rehabilitation in COPD Patients (AREB-1)
14. august 2018 opdateret af: University Hospital, Montpellier
Antioxidants Supplementation Associated With Pulmonary Rehabilitation is it Effective on Muscle Dysfunction and Signaling Pathways Involved in the Myopathy of COPD?
On the basis of published data and investigators results indicating that systemic redox in balance may contribute to the peripheral muscle dysfunction in COPD patients, the investigators propose a study testing the effects of antioxidants and exercise training in COPD patients.
The results may have major implication in the improvement of pulmonary rehabilitation benefits
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
COPD will constitute the third cause of mortality in 2012.
This chronic respiratory disease is characterized by peripheral dysfunction of skeletal muscle which is associated with major clinical outcomes (prognostics, symptoms, and health related quality of life).
Muscle and systemic oxidative stress has been incriminated in this peripheral muscle dysfunction.Exercise training constitute the main validated therapeutic intervention leading to significant muscle function and clinical improvement.Our preliminary results have shown that COPD patients experiment dietary and enzymatic antioxidants defects.Yet, generic antioxidant supplementation has not shown significant muscle function improvement.Therefore, we aim to test the effects of an antioxidant supplementation targeted on the antioxidant defects associated with exercise training on the peripheral muscle function, exercise tolerance and health quality of life in COPD patients.At the cellular level, this muscle dysfunction is related with a fiber atrophy and a metabolic switch (reduce proportion of oxidative fiber).This study will compare the effects of an antioxidant supplementation on the peripheral muscle function and skeletal muscle cellular properties in association with exercise training during a pulmonary rehabilitation course.Volunteers will be randomised in 2 groups: - 1 group treated with the antioxidant supplementation ( 28 days)- 1 group treated with the placeboIntervention will be allocated by chance and a double blind manner.
Antioxidant supplementation will associate vitamins and trace elements that won't exceed the maximal nutritional dose recommended.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
64
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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-
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Lodève, Frankrig, 34700
- Clinique du Souffle la Vallonie
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Montpellier, Frankrig, 34295
- University Hospital of Montpellier
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
40 år til 78 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- COPD patients, 40 years to 78 years, last exacerbation dating at least 4 weeks
Exclusion Criteria:
- unstabilized primary pathologies (cardiovascular, renal, metabolic, psychiatric)
- nutritional supplementation in the 4 weeks preceding the study (antioxidant, vitamins…)
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Firedobbelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Placebo komparator: Placebo
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Vit E, Vit C, Selenomethionine, Zinc gluconate
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Aktiv komparator: Antioxidant Supplementation
Vitamin antioxidant and trace elements combination that won't exceed the maximal nutritional dose recommended in France (Vit E, vit C, Selenomethionine, Zinc gluconate).
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Vit E, Vit C, Selenomethionine, Zinc gluconate
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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quadriceps endurance time.Time frame: at the start and the end of the study
Tidsramme: up to day 37
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sitting on a bench, starting from a 90° knee flexion of the dominant leg, the subjects should perform knee extensions (6 movements per minute) with a workload to 30% of the isometric maximal voluntary contraction until exhaustion.
The duration of the test (in seconds) characterizes the quadriceps endurance.
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up to day 37
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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muscle and /or serum oxidative stress level
Tidsramme: up to day 37
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Description: oxidative stress will be evaluated by measuring lipid peroxidation and oxidized proteins.GSH/ GSSG ratio and enzymatic/non enzymatic antioxidants
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up to day 37
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Isometric maximal voluntary contraction of the quadriceps
Tidsramme: up to day 37
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sitting on a bench with a force sensor connected to a data acquisition and analysis system signal, subjects should reproduce three trials spaced 1 minute, by an extension movement of the knee joint against a stationary load, maximum way, keeping the arms crossed over the chest and leaning against the back in order to limit the involvement of other muscles.
The most elevated of the three tests repeatable value close to 10% characterizes the maximum strength of subjects.
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up to day 37
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Samarbejdspartnere
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. april 2012
Primær færdiggørelse (Faktiske)
1. december 2014
Studieafslutning (Faktiske)
1. december 2014
Datoer for studieregistrering
Først indsendt
14. august 2013
Først indsendt, der opfyldte QC-kriterier
10. september 2013
Først opslået (Skøn)
16. september 2013
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
16. august 2018
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
14. august 2018
Sidst verificeret
1. august 2018
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 8710
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