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The Aim of the Study is to Decipher the Alterations in Signalling Pathways of Skeletal Muscle Stem Cells (Satellite Cells (SCs)) in Individuals With COPD, as Well as to Examine the Effect of Exercise Training on SCs. (SCOOP)

2. november 2026 opdateret af: University Hospital, Bordeaux

Study of Satellite Cells in COPD-associated sarcOPenia (Satellite Cells in COPD Sarcopenia) : Exploratory Cohort Study for Translational Research

The aim of the study is to decipher the alterations in signalling pathways of skeletal muscle stem cells (satellite cells (SCs)) in individuals with COPD, as well as to examine the effect of exercise training on SCs. To this end, the team will perform an exhaustive evaluation of lung and muscle function, including exercise capacity, as well as muscle biopsies, before and after a 2-months rehabilitation program. This study should provide new therapeutic avenues for COPD-associated sarcopenia.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Chronic obstructive pulmonary disease (COPD) is now to be considered as a multimorbid disease, originating from a combination of several risk factors (respiratory events in childhood, exposure to inhaled particles, physical inactivity, etc.), and simultaneously affecting several organs. This multi-organ impairment is likely to arise from common biological processes such as systemic inflammation or repair failure. Studying these processes in an organ that is easily accessible to biopsy, such as skeletal muscle, can help in the overall management of COPD. Skeletal muscle wasting (or sarcopenia: loss of muscle mass and force) is also a major comorbidity in COPD, both frequent and associated to increased mortality. Muscle stem cells (satellite cells) are responsible for repairing skeletal muscle tissue after injury, notably after micro-lesions induced by exercise. However, they have been scarcely studied in COPD. In the present project, the team proposes to study repair abnormalities in skeletal muscle tissue by comparing the signalling pathways activated in satellite cells of patients with COPD, before and after a respiratory rehabilitation programme (20 sessions over 8 to 12 weeks). The team will carry out an exhaustive respiratory and muscular assessment at inclusion and at the end of the 20 sessions, evaluating in particular respiratory function and exercise capacity (Pulmonary Function Tests, cardio-pulmonary exercise testing with VO2max measurement, 6-minute walking test, handgrip test) as well as a quadricipital muscle biopsy with the modified Bergström's technique. Muscle biopsies will be used to culture satellite cells and assess their regenerative capacity in vitro, as well as to analyse dysregulated signalling pathways at the transcriptomic level with single-cell RNAsequencing. The results should help to identify new therapeutic avenues for the comprehensive management of multimorbid COPD.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

26

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

  • Frankrig
      • Créteil, Frankrig, 94000
        • Hôpital Henri-Mondor
        • Kontakt:
      • Paris, Frankrig, 75013
      • Pessac, Frankrig, 33400
        • CHU de Bordeaux
        • Kontakt:
        • Ledende efterforsker:
          • Pauline HENROT, MD

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

18 år til 75 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Adult male or female (age 18 years or older);
  • Having a diagnosis of COPD according to the GOLD (Global Initiative for Lung Disease) 2024 criteria, i.e. a non-reversible bronchial obstruction in spirometry with a post-bronchodilator Tiffeneau coefficient < 70%;
  • Less than or equal to 75 years of age;
  • Must benefit from exercise retraining sessions or respiratory rehabilitation as part of the management of COPD;
  • Person affiliated to or beneficiary of a social security scheme (excluding State Medical Aid (AME));
  • Free, informed and written consent signed by the participant or by a third party (in the event of the participant's physical disability) and the investigator (no later than the day of inclusion and before any review required by the research).

Exclusion Criteria:

  • Moderate or severe acute exacerbation of COPD, or acute intercurrent condition (e.g., infection) that has been ongoing or resolved for less than 4 weeks;
  • Systemic corticosteroid therapy in progress or stopped for less than 4 weeks;
  • Contraindication to respiratory rehabilitation: tight aortic stenosis, unstable heart failure, active thromboembolic disease, ventricular aneurysm, uncontrolled arrhythmias;
  • Contraindication to muscle biopsy: acquired or innate haemostasis disorders, anticoagulant treatment or double anti-platelet aggregation; contraindication to lidocaine: known hypersensitivity, patients with recurrent porphyrias;
  • Presence of a concomitant muscle pathology, innate (e.g., genetic myopathy) or acquired (e.g., myositis, progressive cancer);
  • Pregnant or breastfeeding woman;
  • Patient under guardianship or curatorship;
  • Refusal to participate in the study.

Exclusion criteria:

- Hemostasis disorders.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Men or women (adults) with a diagnosis of COPD according to GOLD criteria
Procedure: Exercise training

Patients will undergo an exhaustive respiratory and muscular check-up (including quadridipital muscle biopsies) at inclusion and at the end of the respiratory rehabilitation program (a minimum of 20 sessions at a rate of 2 to 3 sessions per week for 8 to 12 weeks).

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in single-cell gene expression profile of muscle satellite cells after pulmonary rehabilitation
Tidsramme: Day 1 (baseline, Visit 1) and Week 10 (± 2 weeks; Visit 2)

Intra-individual comparison of messenger RNA (mRNA) expression in muscle satellite cells isolated from quadriceps muscle biopsies collected before and after the pulmonary rehabilitation programme. Satellite cells will be isolated and analysed using single-cell and single-nucleus RNA sequencing. The outcome is the change in the gene-expression profile, including differentially expressed genes and associated molecular signalling pathways, between baseline and the end of rehabilitation.
Day 1 (baseline, Visit 1) and Week 10 (± 2 weeks; Visit 2)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University Hospital, Bordeaux

Efterforskere

  • Ledende efterforsker: Pauline HENROT, University Hospital, Bordeaux

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 (Anslået)

15. november 2026

Primær færdiggørelse (Anslået)

15. marts 2030

Studieafslutning (Anslået)

15. marts 2030

Datoer for studieregistrering

Først indsendt

16. oktober 2026

Først indsendt, der opfyldte QC-kriterier

2. november 2026

Først opslået (Faktiske)

6. november 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. november 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • CHUBX 2026/005
  • 2026-A00609-42 (Anden identifikator: French National Agency for Safety of Medicines and Health Products)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

The data is available from Dr HENROT . An email can be sent to her so that she can contact the data manager and owner, the Bordeaux University Hospital. The data can be made available after contractual agreement.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • ICF
  • CSR

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