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Prevalence, Incidence and Characteristics of NAFLD/NASH in Type 1 Diabetes Mellitus (NAFLDIA1)

3. marts 2022 opdateret af: Christophe De Block, University Hospital, Antwerp

Prevalence, Incidence and Characteristics of NAFLD/NASH in Type 1 Diabetes Mellitus Obtained Via a Non-invasive Screening Protocol

Nonalcoholic fatty liver disease (NAFLD) is a condition characterized by intrahepatic fat accumulation. It is closely related to insulin resistance. To date, it remains unclear whether NAFLD is common in patients with type 1 diabetes or if NAFLD translates into an increased health burden in this population. Screening for NAFLD is challenging due to the limitations of non-invasive diagnostic tools.

Liver biopsy remains the gold standard but is not suited for routine screening or clinical studies. Therefore, there is a great demand for accurate non-invasive screening tools that can not only diagnose but also stage NAFLD. This study aims to generate a large cohort of thoroughly characterized type 1 diabetes patients screened for NAFLD using multiple non-invasive tools including MRI, ultrasound, controlled attenuation parameter, and score panels. We aim to generate a biobank to promote a research collaboration network in the field of non-invasive diagnosis of NAFLD.

A secondary endpoint is to investigate the potential correlation between the presence of NAFLD and the occurrence of micro-or macrovascular complications in patients with diabetes.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This study aims to characterize and follow a thoroughly characterized cohort of adult type 1 diabetes patients free from secondary liver disease due to excessive alcohol usage, viral hepatitis, alfa-1 antitrypsin deficiency, Wilson's disease or steatogenic or hepatotoxic drug use.

The investigators will screen for NAFLD and fibrosis using multiple non-invasive techniques including

  • ultrasound
  • controlled attenuation parameter
  • fatty liver index
  • human steatosis index
  • transient elastography
  • FIB-4
  • NAFLD fibrosis score
  • NASH algorithm based on multiple parameters

Subjects will be screened for microvascular and microvascular complications with:

  • ECG
  • microfilament examination
  • 24hour urine collection for microalbuminuria
  • serum kidney test (creatinine, eGFR)
  • fundoscopy
  • peripheral arterial pulsation palpation

The investigators will subsequently thoroughly characterize various metabolic and anthropometric parameters and document any microvascular or macrovascular complications.

The patients will be annually rescreened for both NAFLD-related as cardiovascular variables. Therefore this study will assess the correlation between NAFLD, cardiovascular risk, and type 1 diabetes in a prospective manner.

Undersøgelsestype

Observationel

Tilmelding (Forventet)

700

Kontakter og lokationer

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

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

  • Belgien
    • Antwerp
      • Edegem, Antwerp, Belgien, 2650
        • Rekruttering
        • Antwerp University Hospital
        • Kontakt:

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 type 1 diabetes patients followed in the outpatient diabetes clinic of the Antwerp University Hospital

Beskrivelse

Inclusion Criteria:

  • Type 1 diabetes
  • Adult age
  • Informed consent given

Exclusion Criteria:

  • Secondary liver disease
  • Excess alcohol usage
  • Pregnancy
  • Use of steatogenic medication
  • Active cancer or oncological treatment
  • History of organ transplantation

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
Intervention / Behandling
NAFLD + type 1 diabetes
type 1 diabetes patient with NAFLD on screening
Diagnostisk test: ultrasound
ultrasound to check for NAFLD according to Saverymuttu criteria
Diagnostisk test: elastography
elastography to compare liver stiffness indices
Diagnostisk test: controlled attenuation parameter (CAP)
CAP is a non-invasive additive on Fibroscan (trademark) which can quantify hepatic steatosis
Diagnostisk test: FLI
the FLI is a score panel designed to screen for NAFLD
Diagnostisk test: FIB-4
the FIB-4 is a score panel designed to screen for significant fibrosis
Diagnostisk test: NFS
the NFS is a score panel designed to screen for significant fibrosis
noNAFLD + type 1 diabetes
type 1 diabetes patient without NAFLD on screening
Diagnostisk test: ultrasound
ultrasound to check for NAFLD according to Saverymuttu criteria
Diagnostisk test: elastography
elastography to compare liver stiffness indices
Diagnostisk test: controlled attenuation parameter (CAP)
CAP is a non-invasive additive on Fibroscan (trademark) which can quantify hepatic steatosis
Diagnostisk test: FLI
the FLI is a score panel designed to screen for NAFLD
Diagnostisk test: FIB-4
the FIB-4 is a score panel designed to screen for significant fibrosis
Diagnostisk test: NFS
the NFS is a score panel designed to screen for significant fibrosis

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Prevalence of NAFLD in type 1 diabetes: percentage of patients with indices of liver steatosis and/or NASH and/or fibrosis.
Tidsramme: one year
Determination of the cross-sectional prevalence of NAFLD in a cohort of type 1 diabetes patient (population size approximately 1000 subjects) according to ultrasound criteria, FLI≥60, HSI≥36, controlled attenuation parameter >215dB/m (M-probe) or ≥250 dB/m (XL probe) and MRI-PDFF >5% hepatocyte steatosis (reference method). All measures will be performed in a combined and standardized protocol to explore their diagnostic accuracy (see outcome 4).
one year
Incidence of NAFLD in type 1 diabetes.
Tidsramme: five years
Incidence of NAFLD in type 1 diabetes determined by new cases of NAFLD according to ultrasound criteria, FLI≥60, HSI≥36, controlled attenuation parameter >215dB/m (M-probe) or ≥250 dB/m (XL probe) or MRI-PDFF >5% hepatocyte fat infiltration (reference method)
five years
correlation of NAFLD with microvascular and macrovascular complications in type 1 diabetes mellitus: odds ratio to have prevalent complications in NAFLD and diabetes compared to diabetes without NAFLD
Tidsramme: one year
The correlation between indices of microvascular (neuropathy assessed by microfilament test, nephropathy assessed by microalbuminuria rate and retinopathy assessed by fundoscopic criteria) or macrovascular (non-fatal ischemic coronary disease, non-fatal cerebrovascular disease, non-fatal peripheral artery disease, or mortality due to cardiovascular disease) complications will be compared between groups with and without NAFLD as determined by the abovementioned screening tools.
one year
Association of NAFLD with microvascular and macrovascular complications in type 1 diabetes mellitus: odds ratio to develop in NAFLD and diabetes compared to diabetes without NAFLD in subjects with no prior complications
Tidsramme: five years
The association between indices of microvascular (neuropathy assessed by microfilament test, nephropathy assessed by microalbuminuria rate and retinopathy assessed by fundoscopic criteria) or macrovascular (non-fatal ischemic coronary disease, non-fatal cerebrovascular disease, non-fatal peripheral artery disease or mortality due to cardiovascular disease) complications will be assessed between groups with and without NAFLD, but all without prior micro- or macrovascular disease as determined by the abovementioned screening tools.
five years

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Diagnostic accuracy of non-invasive tools for NAFLD in type 1 diabetes: comparison of AUROC and diagnostic accuracy
Tidsramme: five years
The investigators will compare the abovementioned non-invasive tools to diagnose and grade liver steatosis and fibrosis with the predefined gold standard (MRI-PDFF for steatosis and magnetic resonance elastography for fibrosis). Correlations and agreement statistics will be performed for each index. Using regression analysis, a new specific algorithm will be developed based on cohort-specific cutoffs. Using longitudinal data, a prediction score will be determined to predict NAFLD occurrence or NAFLD progression.
five years
Natural history of NAFLD in type 1 diabetes
Tidsramme: five years
Timewise description of the progression of quantitative indices of liver steatosis and fibrosis on the abovementioned tools (ultrasound, score systems, elastography) to assess the natural evolution of NAFLD. Every year this assay will be performed. MRI-PDFF will be performed in 5 years as a reference method to mark the five-year follow-up window
five years

Samarbejdspartnere og efterforskere

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

Sponsor

University Hospital, Antwerp

Efterforskere

  • Ledende efterforsker: Christophe De Block, M.D., PhD, Universiteit Antwerpen
  • Ledende efterforsker: Sven Francque, M.D., PhD, Universiteit Antwerpen

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Hjælpsomme links

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)

17. september 2018

Primær færdiggørelse (Forventet)

30. juli 2023

Studieafslutning (Forventet)

30. juli 2025

Datoer for studieregistrering

Først indsendt

4. november 2020

Først indsendt, der opfyldte QC-kriterier

10. december 2020

Først opslået (Faktiske)

11. december 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

4. marts 2022

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. marts 2022

Sidst verificeret

1. marts 2022

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 18/32/361

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

monocentric study

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ja

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

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