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Hjemmemonitorering af voksne patienter med SMA: en pilot multicenter valideringsundersøgelse (SMA-AtHome)

2. november 2026 opdateret af: Institut de Myologie, France

There is no complete cure for SMA yet. However, the discovery of the genetic cause of SMA has led to the development of several treatment options that affect the genes involved in SMA - a gene replacement therapy called Zolgensma, and two drugs, called Nusinersen (Spinraza) and Risdiplam (Evyrsdi). In this context, the evaluation of efficacy and the long term follow-up of patients treated with these innovative treatments in clinical routine is one of the critical points. These evaluations are carried out in a medical context (clinical sites or research unit) using validated measurement tools and outcome measures. Carrying out these evaluations in a controlled environment can be considered from certain aspects as an advantage (reproducibility of measures, neutral environment, etc.), but also raises a certain number of questions regarding the impact on patients, the financial cost, or the relevance of the data obtained in an unnatural environment (stress, fatigue, patient motivation…). Also the regulatory authorities ask for longitudinal data for deciding to reimburse these expensive treatments. As such, the hospital cannot digest all these evaluations due to a lack of resources.

Studieoversigt

Status

Trukket tilbage

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

In the last few years, a number of therapeutic approaches have targeted a possible increase of the production of SMN protein in target motor neurons by genetic replacement of the defective SMN1 gene or by modifying pre-mRNA splicing in SMN2 to promote exon 7 inclusion by using an antisense oligonucleotide or small molecule drugs. Several clinical studies have focused on the evaluation of patients with SMA, whether they are ambulatory or not, adults, children or infants, treated or untreated.

Depending on the SMA type, age or ambulatory status of the patients, different assessments (motor function scales or questionnaires) have provided consistent results to measure the evolution of the patients, such as HFMSE, MFM, RULM, 6MWT, MRC scale, Chop Intend or HINE.

As these evaluations are generally carried out in a controlled environment, they are likely to present an environmental bias. Even if studies are designed to anticipate and avoid most of these issues, different factors can influence patient test results (fatigue, motivation, stress, day to day variability…). From an economical point of view, the evaluation of patients in a controlled environment also has a significant cost, which heavily impact the global cost of clinical research or standard care (transport, patients' accommodation and care…). This factor is even more important as a significant proportion of the SMA population is non-ambulatory.

New treatments are indicated to treat SMA with a major impact on pre-existing disease standards of care and patients care pathway. In particular, there is no consensus on appropriate measures to monitor disease progression and treatment effect in a real-world setting. Such measures are critically needed to discuss treatment indication (treatment initiation criteria and stopping rules, therapeutic goals) and treatment monitoring. While patient reported outcome measures (PROMs) become more represented, objective functional measures are still required to assess SMA. In spite of the development of digital measures, no validated patient self-reported functional measures can be used as a surrogate. Thus, the objective disease assessment is currently based on validated outcome measures for SMA, similar to those used in clinical studies. As compared to clinical trials, the feasibility to administer these measures to SMA patients is challenging. Major limiting factors are: (1) the high disease-prevalence, (2) time-consuming measures, (3) the need for trained expert evaluators, and (4) limited access to hospital-based resources. In addition, the burden of affected individuals and caregivers has not been evaluated as well as patient treatment monitoring expectations. A refined approach using modern tools and fitting with patient real life environment is needed.

Undersøgelsestype

Interventionel

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiesteder

      • Angers, Frankrig, 49933
        • CHU d'Angers
      • Lille, Frankrig, 59000
        • CHU de Lille
      • Nantes, Frankrig, 44093
        • CHU de Nantes
      • Paris, Frankrig, 75013
        • Institute of Myology
      • Reims, Frankrig, 51092
        • CHU de Reims
      • Tours, Frankrig, 37044
        • CHRU de Tours

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 og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Age > 18 years
  • Confirmed SMA type 2 or 3 diagnostic
  • Written informed consent
  • Able to comply with all protocol requirements
  • Affiliate or beneficiary of a social security scheme

Non-Inclusion Criteria:

  • Inability to carry out assessments at home
  • Claustrophobia (only for patients from Paris and Lille sites)
  • Guardianship/trusteeship
  • Pregnant or nursing women

Exclusion criteria:

  • Inability to comply with protocol requirements
  • Any medical and social conditions that could interfere with the study under the appreciation of the medical coordinator

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Andet: Home to onsite monitoring

Patients will be monitored and evaluate in a first time at home then onsite.

The grip and pinch strength of the patient will be evaluate using dedicated devices (MyoGrip and MyoPinch)

Andre navne:
  • MyoGrip/Pinch

Lower and upper limb capacities of the patients will be measured during timed tests

Andre navne:
  • 10mWT, 30STS, 6MWT, 9HPT

Patient's motor functional abilities will be evaluated using specific motor scales (MFM32, RULM)

Patients and caregivers quality of life will be measured with different questionnaires (SMA-FRS, QOL-gNMD, SMAIS, PREM)

Patients physical activity will be measured at home using accelerometer sensors

Sub-group of patients will perform an NMR imaging to evaluate the intramuscular fatty infiltration in thighs and muscle volume in thighs

The patients' muscular and fatty volume will be evaluated using BIA technic (compared to MNR)

Andet: Onsite to Home monitoring

Patients will be monitored and evaluate in a first time onsite then at home .

The grip and pinch strength of the patient will be evaluate using dedicated devices (MyoGrip and MyoPinch)

Andre navne:
  • MyoGrip/Pinch

Lower and upper limb capacities of the patients will be measured during timed tests

Andre navne:
  • 10mWT, 30STS, 6MWT, 9HPT

Patient's motor functional abilities will be evaluated using specific motor scales (MFM32, RULM)

Patients and caregivers quality of life will be measured with different questionnaires (SMA-FRS, QOL-gNMD, SMAIS, PREM)

Patients physical activity will be measured at home using accelerometer sensors

Sub-group of patients will perform an NMR imaging to evaluate the intramuscular fatty infiltration in thighs and muscle volume in thighs

The patients' muscular and fatty volume will be evaluated using BIA technic (compared to MNR)

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
To compare the results of physical evaluations between home and hospital
Tidsramme: Through study completion, an average of 3 weeks

Evaluation of the correlations between results obtained during the physical evaluations at home compared to those obtained at hospital

Through study completion, an average of 3 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
To determine the barriers for evaluation at home
Tidsramme: Through study completion, an average of 3 weeks

Inventory of items and assessments not carried out at home due to the environment

Through study completion, an average of 3 weeks
Correlation of home and hospital muscle volume measurement methods
Tidsramme: Through study completion, an average of 3 weeks

Comparison of muscle volumes measured by bio-impedancemetry with those obtained by MRI.

Through study completion, an average of 3 weeks
Correlation of home and hospital MyoGrip measurement
Tidsramme: Through study completion, an average of 3 weeks

Comparison of MyoGrip measurements obtained at home and at the hospital.

Through study completion, an average of 3 weeks
Correlation of home and hospital MyoPinch measurement
Tidsramme: Through study completion, an average of 3 weeks

Comparison of MyoPinch measurements obtained at home and at the hospital.

Through study completion, an average of 3 weeks
Correlation of home and hospital MFM results
Tidsramme: Through study completion, an average of 3 weeks

Comparison of MFM evaluation results obtained at home and at the hospital.

Through study completion, an average of 3 weeks
Correlation of home and hospital RULM results
Tidsramme: Through study completion, an average of 3 weeks

Comparison of RULM evaluation results obtained at home and at the hospital.

Through study completion, an average of 3 weeks
Correlation of home and hospital 30STS tests results
Tidsramme: Through study completion, an average of 3 weeks

Comparison of 30STS measurements obtained at home and at the hospital.

Through study completion, an average of 3 weeks
Correlation of home and hospital 9HPT results
Tidsramme: Through study completion, an average of 3 weeks

Comparison of 9HPT measurements obtained at home and at the hospital.

Through study completion, an average of 3 weeks

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 (Faktiske)

6. februar 2024

Primær færdiggørelse (Faktiske)

1. marts 2024

Studieafslutning (Faktiske)

1. marts 2024

Datoer for studieregistrering

Først indsendt

2. december 2022

Først indsendt, der opfyldte QC-kriterier

20. april 2023

Først opslået (Faktiske)

3. maj 2023

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

4. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. november 2026

Sidst verificeret

1. november 2026

Mere information

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