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Establishing a Reference Framework for Outcomes After Machine-Preserved Liver Transplantation in Europe (REFRAME-MP)

4. september 2026 oppdatert av: University Medical Center Groningen

Establishing a Reference Framework for Outcomes After Machine-Preserved Liver Transplantation in Europe (REFRAME-MP)

Machine perfusion (MP) has become routine clinical practice in liver transplantation. However, as the field has matured, direct randomized comparisons between distinct MP modalities have become increasingly impractical, given that donor and graft characteristics often predetermine the optimal preservation strategy. Consequently, many studies continue to reference historical benchmark cohorts from the pre-perfusion era, or use risk scores developed before routine utilization of MP. These cohorts, while once valuable, fail to account for the paradigm shift that MP has introduced. Likewise, commonly used donor- and recipient-based risk scores were developed prior to the adoption of MP. While these scores aim to assess survival or morbidity after transplantation, none of them guide decisions about MP use or the most suitable perfusion protocol. As MP technologies continue to evolve there is a critical need for an updated reference framework that accurately reflects current clinical practice and captures the best achievable outcomes across all MP modalities.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

The aim of this study is to establish a reference framework for liver transplantation outcomes in the era of routine clinical machine perfusion. In addition, based on the collected real-world observational data, a target trial emulation approach will be applied.

Studietype

Observasjonsmessig

Registrering (Antatt)

10000

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Belgia
      • Leuven, Belgia
        • Har ikke rekruttert ennå
        • University Hospitals Leuven
        • Ta kontakt med:
        • Hovedetterforsker:
          • Diethard Monbaliu, MD, PhD
  • Italia
      • Torino, Italia
        • Rekruttering
        • A.O.U. Città della Salute e della Scienza
        • Ta kontakt med:
        • Hovedetterforsker:
          • Damiano Patrono, MD, PhD
  • Nederland
      • Groningen, Nederland
        • Rekruttering
        • University Medical Center Groningen
        • Hovedetterforsker:
          • Vincent E de Meijer, MD, PhD
        • Ta kontakt med:
  • Storbritannia
      • London, Storbritannia
        • Har ikke rekruttert ennå
        • Royal Free London NHS Foundation Trust
        • Ta kontakt med:
        • Hovedetterforsker:
          • David Nasralla, MD, PhD
      • London, Storbritannia
        • Har ikke rekruttert ennå
        • King's College Hospital NHS Foundation Trust
        • Ta kontakt med:
        • Hovedetterforsker:
          • Miriam Cortes Cerisuelo, MD, PhD
  • Sveits
      • Bern, Sveits
        • Har ikke rekruttert ennå
        • Bern University Hospital
        • Hovedetterforsker:
          • Philipp Dutkowski, MD, PhD
        • Ta kontakt med:
  • Sverige
      • Stockholm, Sverige
        • Har ikke rekruttert ennå
        • Karolinska Institutet
        • Ta kontakt med:
        • Hovedetterforsker:
          • Gabriel Oniscu, MD, PhD
  • Tyskland
      • Essen, Tyskland
        • Rekruttering
        • University Hospital Essen
        • Ta kontakt med:
        • Hovedetterforsker:
          • Ulf Neumann, MD, PhD
        • Underetterforsker:
          • Zoltan Czigany, MD, PhD
  • Østerrike
      • Innsbruck, Østerrike
        • Har ikke rekruttert ennå
        • Medical University of Innsbruck
        • Ta kontakt med:
        • Hovedetterforsker:
          • Stefan Schneeberger, MD, PhD
      • Vienna, Østerrike
        • Har ikke rekruttert ennå
        • Medical University of Vienna
        • Ta kontakt med:
        • Hovedetterforsker:
          • Deniz Uluk, MD

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

All postmortal livers accepted (transplanted and not-transplanted after machine perfusion) upon organ offer between 01.01.2021 and 31.12.2025 for patients >18 years at the time of liver transplantation.

Beskrivelse

Inclusion Criteria:

  • All postmortal livers accepted (transplanted and not-transplanted after machine perfusion) upon organ offer for patients >18 years at the time of liver transplantation.
  • All donor types (DBD, DCD)
  • Preservation either with static cold storage alone or combined with machine perfusion (MP).
  • Donor livers underwent MP as part of routine clinical practice and the choice of perfusion protocol was made according to institutional standard practice.

  • Eligible MP protocols are:

    1. end-ischemic single- or dual hypothermic oxygenated MP [e(D)HOPE],
    2. end-ischemic (back-to-base) normothermic MP [eNMP],
    3. continuous (device-to-donor) normothermic MP [cNMP],
    4. e(D)HOPE followed by controlled oxygenated rewarming and normothermic MP [e(D)HOPE-COR-NMP)],
    5. e(D)HOPE followed by normothermic MP [e(D)HOPE-NMP], or
    6. Normothermic regional perfusion followed by SCS or an ex situ MP protocol.
  • A minimum follow-up of 12 months after liver transplantation is required.

Exclusion Criteria:

  • Livers that were allocated to a MP protocol as part of a prospective randomized or interventional clinical trial comparing different preservation techniques or any other invention.
  • Living donor liver transplantation

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Death-censored graft survival
Tidsramme: Actuarial survival 1-5 year post-transplantation
Defined as the time from liver transplantation until re-transplantation or death due to graft failure (analyzed using time-to-event methods).
Actuarial survival 1-5 year post-transplantation
Overall patient survival
Tidsramme: Actuarial survival 1-5 year post-transplantation
Defined as time from liver transplantation until re-transplantation or all-cause death (analyzed using time-to-event methods).
Actuarial survival 1-5 year post-transplantation

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Overall graft survival
Tidsramme: Actuarial survival 1-5 year post-transplantation
Defined as time from liver transplantation until re-transplantation or all-cause death (analyzed using time-to-event methods)
Actuarial survival 1-5 year post-transplantation
Incidence of major liver-related complications
Tidsramme: within the transplant-related admission, and 1 year post-transplantation
Incidence of at least one biliary or vascular complication graded as Clavien-Dindo IIIb or higher, following the grading recommendations published: de Goeij FHC, Wehrle CJ, Abbassi F, et al. Mastering the narrative: Precision reporting of risk and outcomes in liver transplantation. J Hepatol. 2025;82(4):729-743. doi:10.1016/j.jhep.2024.11.013. Additionally, scoring accoring the Comprehensive Complication Index.
within the transplant-related admission, and 1 year post-transplantation
Incidence of graft loss due to complications
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation
Graft loss as a result of complications assessed separately for biliary complications, vascular complications, and rejection.
within 1 year post-transplantation, up to 5 years post-transplantation
Total number of clinically significant biliary complications
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation
Total number of any biliary complications requiring interventions (Clavien-Dindo grade IIIa or higher).
within 1 year post-transplantation, up to 5 years post-transplantation
Incidence of biliary complications
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation

Biliary complications include:

  • Post-transplant cholangiopathy
  • Anastomotic strictures
  • Biliary leakage
within 1 year post-transplantation, up to 5 years post-transplantation
Incidence of vascular complications
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation

Vascular complications include:

  • Hepatic artery thrombosis
  • Portal vein thrombosis
  • Venous outflow tract obstruction
within 1 year post-transplantation, up to 5 years post-transplantation
Incidence of re-transplantation
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation
Re-transplantation for any cause.
within 1 year post-transplantation, up to 5 years post-transplantation
Incidence of acute rejection
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation
within 1 year post-transplantation, up to 5 years post-transplantation
Incidence of chronic rejection
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation
within 1 year post-transplantation, up to 5 years post-transplantation
Incidence of recurrence of primary disease
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation
Histologically or radiologically confirmed recurrence, including recurrence of malignancies
within 1 year post-transplantation, up to 5 years post-transplantation
Incidence of kidney injury
Tidsramme: within 1 year post-transplantation, up to 5 years post-transplantation

Kidney injury includes:

  • Acute kidney injury
  • New-onset chronic kidney disease
within 1 year post-transplantation, up to 5 years post-transplantation
Incidence of primary non-function
Tidsramme: up to 1 week post-transplantation
Liver graft failure within the first 7 days of transplantation with patent liver vessels leading to re-transplantation or patient death
up to 1 week post-transplantation
Patient-centered outcomes (measure of recovery and healthcare utilization)
Tidsramme: within 1 year post-transplantation
Length of intensive care unit stay and length of initial hospital stay (starting at day of transplantation until day of discharge, measured in days)
within 1 year post-transplantation

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

University Medical Center Groningen

Samarbeidspartnere

A.O.U. Città della Salute e della Scienza

Etterforskere

  • Hovedetterforsker: Vincent E de Meijer, MD, PhD, University Medical Center Groningen

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

21. april 2026

Primær fullføring (Antatt)

31. desember 2026

Studiet fullført (Antatt)

31. desember 2030

Datoer for studieregistrering

Først innsendt

21. april 2026

Først innsendt som oppfylte QC-kriteriene

11. mai 2026

Først lagt ut (Faktiske)

14. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

10. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

4. september 2026

Sist bekreftet

1. april 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • UMCG_REFRAME-MP
  • METc 2026/180 (Registeridentifikator: UMCG METc number)

Plan for individuelle deltakerdata (IPD)

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Nei

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