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Multimodal Study About Absence of Dp140 in Becker Muscular Dystrophy: Brain-muscle Imaging, Cognition and Muscle Function (MyoBrain-BMD)

28. juli 2026 opdateret af: Institut de Myologie, France

Monitoring patients with neuromuscular disorders is crucial but doesn't always allow for a sufficiently specific approach to all aspects of the condition. However, in the event of future treatment, it is essential for clinical and research teams to have as much information as possible about the disease, particularly regarding its physical, physiological, biological, and neurological aspects.

In this context, it was consider as vital to investigate in greater depth the links between the presence of certain dystrophin isoforms in patients and their potential impacts on cognitive, neurological, and muscular function. The results of this study could serve as a reference for future research and improve the understanding and management of this disease.

All of this data will allow for a precise evaluation of the effects of a potential treatment on the progression of the disease.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

75

Kontakter og lokationer

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

Studiekontakt

Studiesteder

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

  • Voksen

Tager imod sunde frivillige

Ja

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Fifty patients will be included, including 25 patients having the cerebral Dp140 isoform (Dp140+) and 25 patients lacking the cerebral Dp140 isoform (Dp140-). A same number (n=25) of age-matched healthy volunteers will be included as well.

Beskrivelse

Inclusion Criteria:

  • Genetically confirmed diagnosis of Becker muscular dystrophy
  • Ambulant
  • Signed ICF

Exclusion Criteria:

  • Individuals presenting contraindications to MRI
  • History of allergy to contrast product
  • Individuals with history of neurological diseases interfering with the study
  • Individuals with concomitant medical conditions that could interfere with the study outcomes

    • subjects who suffer from any type of cancer (or on cancer treatment)
    • obese subjects: BMI>35
    • subjects with cardiac (left-ventricular ejection fraction <40%) and/or respiratory insufficiency (forced vital capacity < 50%) and/or normal ECG
  • Individuals who are not yet or insufficiently stabilized on psychiatric medication
  • Any medical and social condition that may interfere with the study at the discretion of the medical coordinator
  • Guardianship

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Sunde emner
BMD patients Dp140+
Dp140+
BMD patients Dp140-
Dp140-

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Brain volume
Tidsramme: 2 years
Measurement of grey and white matter volume (in mm3) using brain MRI sequences.
2 years
Brain cortical thickness
Tidsramme: 2 years
Measurement of cortical thickness (in mm) using brain MRI sequences.
2 years
Brain water motion
Tidsramme: 2 years
Measurement of diffusion-based values, including apparent diffusion coefficient (in m2/s) and fractional anisotropy (unitless) using diffusion-weighted MRI sequences.
2 years
Brain iron metabolism
Tidsramme: 2 years
Measurement of brain iron metabolism using MRI-based quantitative susceptibility mapping (measured in parts per million).
2 years
Brain function: resting-state and following task
Tidsramme: 2 years
Measurement of resting-state brain function (default-mode-network) using functional MRI. Measurement of brain activation using fMRI following fronto-executive task (Stroop test).
2 years
Intelligence test
Tidsramme: 2 years
Evaluation of intelligence using Wechsler Scale of Intelligence (WAIS-4).
2 years
Psychological evaluation of depression
Tidsramme: 2 years
Psychological evaluation using Beck Depression Inventory-II (BDI-II).
2 years
Psychological evaluation of anxiety
Tidsramme: 2 years
Psychological evaluation using State-Trait Anxiety Inventory-2 (STAI-Y2).
2 years
Psychological evaluation of ADHD
Tidsramme: 2 years
Psychological evaluation using Connors Adult Rating Scale.
2 years
Neuropsychological evaluation of memory for attention and cognitive processing
Tidsramme: 2 years
Neuropsychological cognitive evaluation of memory for attention and cognitive processing using Free and Cued Selective Reminding Test (FCSRT).
2 years
Neuropsychological evaluation of visual memory and executive function
Tidsramme: 2 years
Neuropsychological cognitive evaluation of visual memory and executive function using Rey-Osterrieth Complex Figure Test (ROCF).
2 years
Neuropsychological evaluation of visual attention and task switching
Tidsramme: 2 years
Neuropsychological cognitive evaluation of visual attention and task switching using Trail Making Test.
2 years
Neuropsychological evaluation of inhibition
Tidsramme: 2 years
Neuropsychological cognitive evaluation of inhibition using Stroop Color and Word Test.
2 years
Neuropsychological evaluation of verbal functioning
Tidsramme: 2 years
Neuropsychological cognitive evaluation of verbal functioning using Phonemic verbal fluency test.
2 years
Neuropsychological evaluation of facial expressions.
Tidsramme: 2 years
Neuropsychological cognitive evaluation of facial expressions using Pictures of Facial Affect test.
2 years
Neuropsychological evaluation of empathy
Tidsramme: 2 years
Neuropsychological cognitive evaluation understanding inappropriateness, speaker's intentions/motivations, speaker's belief, empathy (participant's ability to know how the character would feel), and finally story comprehension using Faux pas Recognition Test. Empathy is also evaluated using The Interpersonal Reactivity Index.
2 years

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Evaluation of muscle disease progression
Tidsramme: 2 years
Evaluation of disease progression based on quantitative assessment of MRI-based muscle fat fraction (FF, in %) and residual muscle (i.e. contractile cross-sectional area, in cm2) in lower limb (individual thigh and leg muscles).
2 years
Evaluation of muscle disease activity (edema, inflammation, ...)
Tidsramme: 2 years
Evaluation of qMRI-biomarkers sensitive to active muscle damage or disease activity such as water T2 and water T1 mapping, expressed in milliseconds (individual thigh and leg muscles).
2 years
Evaluation of muscle extracellular volume
Tidsramme: 2 years
Evaluation of extracellular volume (ECV) in muscle (unitless or %) will be assessed using qMRI-based T1 mapping before and after contrast agent injection (individual thigh and leg muscles).
2 years
Evaluation of energy metabolism.
Tidsramme: 2 years
Evaluation of energy metabolism using qMRI and 31P magnetic resonance spectroscopy.
2 years
Evaluation of intramuscular pH.
Tidsramme: 2 years
Evaluation of intramuscular pH using qMRI and 31P magnetic resonance spectroscopy.
2 years
Evaluation of gait endurance (timed test)
Tidsramme: 2 years
Evaluation of gait endurance using 6-minute walk test (6MWT) and 10-m walking test (10mWT).
2 years
Evaluation of exertion and dyspnea (timed test)
Tidsramme: 2 years
Evaluation of exertion and dyspnea using 30-second sit-to-stand test (30STS).
2 years
Evaluation of TUG test performance
Tidsramme: 2 years
Evaluation of performance at time-up-and-go test (TUG).
2 years
Motor Function assessment
Tidsramme: 2 years
Evaluation of motor function abilities using quantitative Motor Function Measurement (MFM) scale.
2 years
Muscle strength evaluation
Tidsramme: 2 years
Strength evaluation of knee extension/flexion, dorsiflexion/plantarflexion of ankle, hand grip and fingers' pinch strength using dedicated MyoTools.
2 years
Evaluation of quality of life
Tidsramme: 2 years
Evaluation of The "Quality of Life in genetic Neuromuscular Disease" questionnaire (QoL-gNMD).
2 years
Health assessment
Tidsramme: 2 years
Health assessment using the Health Assessment Questionnaire (HAQ).
2 years
Assessment of individual's activity level
Tidsramme: 2 years
Assessment of individual's activity level using Ricci et Gagnon Questionnaire.
2 years

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Blood analysis
Tidsramme: 2 years
Evaluation of blood biological parameters.
2 years
Echocardiography
Tidsramme: 2 years
Evaluation of left-ventricular ejection fraction (in %).
2 years
Pulmonary function
Tidsramme: 2 years
Evaluation of Pulmonary Function using Forced Vital Capacity measurement.
2 years

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

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. september 2026

Primær færdiggørelse (Anslået)

31. december 2029

Studieafslutning (Anslået)

31. december 2029

Datoer for studieregistrering

Først indsendt

7. juli 2026

Først indsendt, der opfyldte QC-kriterier

28. juli 2026

Først opslået (Faktiske)

31. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

31. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

28. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 2026-A00317-44

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