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Evaluation of Liver Grafts With FibroScan® Before Organ Retrieval in Patients With Brain Death (FIBROSCAME)

23. oktober 2019 opdateret af: University Hospital, Limoges

According to the French Biomedicine Agency annual report on retrieval activities and transplants, 1,164 liver transplants were performed in 2011 and 1,161 in 2012. If the amount of brain death donors and retrieved liver grafts appears relatively stable, it remains clearly insufficient compared to the increasing number of patients on the waiting list for liver transplantation (2,462 in 2011). The median time on the waiting list before liver transplantation which was established from the cohort of patients registered between 2007 and 2011 (excluding patients registered for emergency transplantation and for living related-donor transplantation) increased significantly from 4.4 months between 2007 and 2009 to 6.6 months between 2010 and 2011. In order to compensate for the lack of liver grafts, donors acceptance criteria were broadened. For example, alternative transplantation lists were created with liver grafts coming from so-called "marginal" donors. However, despite these efforts, livers were retrieved on only two out of three brain death donors, i.e. in 1,572 and 1,589 organ donors in 2011 and 2012, respectively. This is unfortunately not enough to meet the increasing needs in liver grafts and a growing number of patients wait each year for transplant. Strategic lines of improvement were defined in order to meet the "2012-2016 transplant perspective" which targets 5,700 transplants carried out in 2015 (+5% every year, all transplants included, with 5,023 transplants in 2012).

According to the last consensus conference on liver transplantation of the HAS (French High Authority of Health) the assessment of the degree of macrovacuolar and microvacuolar steatosis determines the possibility to retrieve the graft or not. Liver steatosis consists in an accumulation of fatty droplets in hepatocytes. Its prevalence is high, ranging from 16% to 31% in the general population, and increases up to 46% in heavy drinkers and to 50-80% in the obese population. Steatosis results mostly from alcohol consumption and from metabolic syndrome (obesity, type 2 diabetes, hypertriglyceridemia) called non-alcoholic fatty liver disease (NAFLD), and is more rarely secondary to viral hepatitis or exposure to certain medications. NAFLD involves up to 30% of the population in Western countries and its prevalence is increasing. NAFLD may lead to asymptomatic steatosis, but also to steatohepatitis or advanced fibrosis including cirrhosis and its complications Accordingly, the improvement of liver grafts selection based on objective quantitative criteria which takes into account the degree of liver steatosis appears crucial to increase the number of hepatic transplants.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Medical procedure: Fibroscan® based on vibration control transient elastography (VCTETM) with evaluation of controlled attenuation parameter (CAP™) by ultrasounds (Echosens, Paris, France).

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

740

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiesteder

  • Frankrig
      • Amiens, Frankrig, 80054
        • University Hospital
      • Angers, Frankrig, 49100
        • University Hospital
      • Besançon, Frankrig, 25030
        • University Hospital
      • Bordeaux, Frankrig, 33000
        • University Hospital
      • Brest, Frankrig, 29200
        • University Hospital
      • Caen, Frankrig, 14033
        • University Hospital
      • Clermont Ferrand, Frankrig, 63100
        • Estaing University Hospital
      • Creteil, Frankrig, 94010
        • AP-HP Henri Mondor
      • Grenoble, Frankrig, 38043
        • University Hospital
      • Lille, Frankrig, 59037
        • University Hospital
      • Limoges, Frankrig, 87042
        • University Hospital
      • Lyon, Frankrig, 69004
        • Croix Rousse Hospital
      • Nice, Frankrig, 06000
        • Nice University Hospital
      • Paris, Frankrig, 84270
        • AP-HP Kremlin Bicetre
      • Poitiers, Frankrig, 86021
        • University Hospital
      • Reims, Frankrig, 51100
        • Univesity hospital
      • Rennes, Frankrig, 35033
        • University Hospital
      • Tours, Frankrig, 37044
        • University Hospital
      • Vandoeuvre-les-nancy, Frankrig, 54500
        • University Hospital

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:

  • Patients older than 18 years with recognized clinical brain death confirmed by clinical examination, who are considered for organ retrieval and clinically stable to achieve the retrieval procedure

Exclusion Criteria:

  • Personal objection to organ retrieval and clinical research expressed during lifetime and registered in the Registre National des Refus (French registration of all refusals to organ donation)
  • Family objection to liver retrieval after donor's death
  • Ongoing pregnancy when brain death is declared
  • For FT and ST measurements included in the panel FibroMaxTM, 4 exclusion criteria are defined specifically (Acute hepatitis or cytolysis with ALT higher than 622 IU/L, acute or chronic hemolysis, extrahepatic cholestasis, sepsis)

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Diagnostisk
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Fibroscan
All included patients will undergo a Fibroscan (either Fibroscan Touch model or 402 model which enable CAPTM data extraction) once all eligibility criteria have been checked. Liver recipients will be followed up during one year. Biological and medical data used by all transplant sites for the follow-up of transplant patient will be collected
Procedure: Fibroscan
All included patients will undergo a Fibroscan (either Fibroscan Touch model or 402 model which enable CAPTM data extraction) once all eligibility criteria have been checked.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Controlled Attenuation Parameter™ (CAP™) measurement
Tidsramme: 1 Day
Evaluation of the diagnostic accuracy of the CAP™ measured with Fibroscan® to objectively reflect the degree of liver steatosis, a parameter which can be used as an aid in selecting liver grafts before retrieval in donors with brain death (DBD).
1 Day

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Liver Stiffness (LS) measurement
Tidsramme: 1 Day
Evaluation of the diagnostic accuracy of LS measured with Fibroscan® to objectively reflect the degree of fibrosis and steatosis, a parameter which can be used as an aid in selecting liver grafts before retrieval in DBD
1 Day
Controlled Attenuation Parameter™ (CAP™) measurement
Tidsramme: 1 week
Determination of the prognostic value of CAP™ in terms of survival of liver grafts at one week after transplantation
1 week
Liver Stiffness (LS) measurement
Tidsramme: 1 week
Determination of the prognostic value of LS in terms of survival of liver grafts at one week after transplantation
1 week
Liver Stiffness (LS) measurement
Tidsramme: 1 month
Determination of the prognostic value of LS in terms of survival of liver grafts at one month after transplantation
1 month
Controlled Attenuation Parameter™ (CAP™) measurement
Tidsramme: 1 month
Determination of the prognostic value of CAP™ in terms of survival of liver grafts at one month after transplantation
1 month
Liver Stiffness (LS) measurement
Tidsramme: 1 year
Determination of the prognostic value of LS in terms of survival of liver grafts at one week, one month and one year after transplantation
1 year
Controlled Attenuation Parameter™ (CAP™) measurement
Tidsramme: 1 year
Determination of the prognostic value of CAP™ in terms of survival of liver grafts at one week, one month and one year after transplantation
1 year
Fibrosis measurement
Tidsramme: 1 Day
evaluate the diagnostic a accuracy of FibroTest in selecting liver grafts before retrieval in DBD by comparing with 1) histological data obtained with liver biopsy (degree of steatosis, degree of fibrosis) and with 2) CAPTM/LS
1 Day
Steatosis measurement
Tidsramme: 1 Day
evaluate the diagnostic a accuracy of SteatoTest in selecting liver grafts before retrieval in DBD by comparing with 1) histological data obtained with liver biopsy (degree of steatosis, degree of fibrosis) and with 2) CAPTM/LS
1 Day
Fibrosis measurement
Tidsramme: 1 month
Determination of the short-term prognostic values of FibroTest in terms of survival of liver grafts at one month after transplantation
1 month
Steatosis measurement
Tidsramme: 1 month
Determination of the short-term prognostic values of SteatoTest in terms of survival of liver grafts at one month after transplantation
1 month
Fibrosis measurement
Tidsramme: 1 year
Determination of the short-term prognostic values of FibroTest in terms of survival of liver grafts at one year after transplantation
1 year
Steatosis measurement
Tidsramme: 1 year
Determination of the short-term prognostic values of SteatoTest in terms of survival of liver grafts at one year after transplantation
1 year

Samarbejdspartnere og efterforskere

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

Sponsor

University Hospital, Limoges

Efterforskere

  • Ledende efterforsker: Nicolas PICHON, MD, University Hospital, Limoges

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)

1. februar 2015

Primær færdiggørelse (Faktiske)

9. november 2017

Studieafslutning (Faktiske)

9. november 2018

Datoer for studieregistrering

Først indsendt

13. maj 2015

Først indsendt, der opfyldte QC-kriterier

28. maj 2015

Først opslået (Skøn)

2. juni 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

24. oktober 2019

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

23. oktober 2019

Sidst verificeret

1. oktober 2019

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • I12033 FIBROSCAME

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Levertransplantation

Kliniske forsøg med Fibroscan

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