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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 uppdaterad av: 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.

Studieöversikt

Status

Har inte rekryterat ännu

Betingelser

Intervention / Behandling

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Beräknad)

26

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

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

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 75 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

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

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Men or women (adults) with a diagnosis of COPD according to GOLD criteria

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).

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in single-cell gene expression profile of muscle satellite cells after pulmonary rehabilitation
Tidsram: 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)

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Utredare

  • Huvudutredare: Pauline HENROT, University Hospital, Bordeaux

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

15 november 2026

Primärt slutförande (Beräknad)

15 mars 2030

Avslutad studie (Beräknad)

15 mars 2030

Studieregistreringsdatum

Först inskickad

16 oktober 2026

Först inskickad som uppfyllde QC-kriterierna

2 november 2026

Första postat (Faktisk)

6 november 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

6 november 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

2 november 2026

Senast verifierad

1 oktober 2026

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

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

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

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-delning som stöder informationstyp

  • STUDY_PROTOCOL
  • ICF
  • CSR

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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