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Biologisk aldersvurdering hos voksne med Prader-Willi syndrom (ETABIOLPWS) (ETABIOLPWS)

5. november 2026 opdateret af: Istituto Auxologico Italiano

Biologisk aldersvurdering hos voksne med Prader-Willi syndrom, der gennemgår et integreret tværfagligt metabolisk rehabiliteringsprogram

The primary objective of the study is to compare, in a cohort of obese subjects with PWS hospitalized at the Division of Auxology, Istituto Auxologico Italiano, Piancavallo (VB), Italy, the age acceleration calculated at study entry (T0) with the age acceleration measured at the end of a 3-week multidisciplinary metabolic rehabilitation program (T1).

Secondary objectives are to correlate the biological age with the anthropometric characteristics (with particular reference to the body composition), the glycometabolic picture, the main parameters and cardiovascular risk factors, the therapy (previous and concomitant) with rhGH and the cognitive function (mainly, the IQ).

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Methods Thirty adults affected by clinically diagnosed and genetically confirmed PWS are recruited, regardless of the treatment (previous or concomitant) with rhGH (F/M = 15/15; age: ≥ 18 years; BMI > 35 kg/m2), hospitalized for a period of integrated multidisciplinary metabolic rehabilitation at the Division of Auxology, Istituto Auxologico Italiano, Piancavallo (VB), Italy.

After verifying the inclusion criteria, clinical and anthropometric data will be collected, including the evaluation of body composition with bioimpedance analysis. Cognitive function will be assessed with a psychometric scale (Wechsler Adult Intelligence Scale).

Blood samples will be taken from each patient upon admission to the hospital (T0) and after 3 weeks of rehabilitation hospitalization (at the same time to reduce circadian variability) for the determination of the basal glycometabolic profile (glucose, insulin, HOMA-IR, glycated Hb , triglycerides, total cholesterol, LDL, HDL, and hsPCR), as well as circulating levels of leptin, IL-6, and TNF-α.

The samples taken will be used for DNA extraction. DNA methylation will be performed by treatment with sodium bisulphite and PCR-Pyrosequencing.

Biological age measurement Biological (epigenetic) age will be measured using the two algorithms of Zbiec-Piekarska (9) and Daunay (10), based on the level of DNA methylation in specific gene loci. To have an estimate of the epigenetic (biological) age that is independent of the chronological age, we will use a measure defined as age acceleration, from which, with statistical inference, we will calculate the age acceleration. To calculate it, a linear regression model with the chronological age as the independent variable and the epigenetic age as the dependent variable will be applied; the difference between the observed value and the one predicted by the model will constitute the age acceleration due to epigenetic effects. In the event that the epigenetic age is greater than the chronological age, the age acceleration will have a positive value expressed in years, negative if vice versa.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

24

Kontakter og lokationer

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

Studiesteder

  • Italien
    • Verbania
      • Oggebbio, Verbania, Italien, 28824
        • Istituto Auxologico Italiano IRCCS, Site Piancavallo

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

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Adult patients with Prader-Willi syndrome with BMI > 35 kg/m2

Beskrivelse

Inclusion Criteria:

  • adult patients with PWS, clinically diagnosed and genetically confirmed, regardless of rhGH treatment (previous or concomitant)
  • age: ≥ 18 years
  • BMI > 35 kg/m2
  • hospitalization for integrated multidisciplinary metabolic rehabilitation program

Exclusion Criteria:

  • age < 18 years
  • BMI < 35 kg/m2

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
DNA methylation
Tidsramme: Baseline and at the end of the rehabilitation program (21 days)

Change in level of DNA methylation
Baseline and at the end of the rehabilitation program (21 days)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Glycometabolic profile: glucose
Tidsramme: Baseline and at the end of the rehabilitation program (21 days)

Change in glycometabolic profile - glucose levels
Baseline and at the end of the rehabilitation program (21 days)
Glycometabolic profile: insulin
Tidsramme: Baseline and at the end of the rehabilitation program (21 days)

Change in glycometabolic profile - insulin levels
Baseline and at the end of the rehabilitation program (21 days)
Body fat mass
Tidsramme: Baseline and at the end of the rehabilitation program (21 days)

Change in body fat mass - bioimpedance analysis
Baseline and at the end of the rehabilitation program (21 days)
Body fat free mass
Tidsramme: Baseline and at the end of the rehabilitation program (21 days)

Change in body fat free mass - bioimpedance analysis
Baseline and at the end of the rehabilitation program (21 days)
Body weight
Tidsramme: Baseline and at the end of the rehabilitation program (21 days)

Change in body weight
Baseline and at the end of the rehabilitation program (21 days)
Body mass index
Tidsramme: Baseline and at the end of the rehabilitation program (21 days)

Change in body mass index
Baseline and at the end of the rehabilitation program (21 days)

Samarbejdspartnere og efterforskere

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

Sponsor

Istituto Auxologico Italiano

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)

25. maj 2022

Primær færdiggørelse (Faktiske)

22. februar 2025

Studieafslutning (Faktiske)

22. februar 2025

Datoer for studieregistrering

Først indsendt

26. februar 2023

Først indsendt, der opfyldte QC-kriterier

8. marts 2023

Først opslået (Faktiske)

21. marts 2023

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

10. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 01C213

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