Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Impact of Delta Model of End Stage Liver Disease (MELD) in High MELD Liver Transplant Recipients (HDMELD in LT)

1. mai 2026 oppdatert av: Nicola Sariye Pollmann, University of Jena

Delta MELD as a Predictor of Decreased Survival in High MELD Liver Transplant Recipients

Liver transplantation (LT) represents an important curative option for end stage liver disease such as decompensated cirrhosis, which remains a major challenge for today's health care system. The Model for End-Stage Liver Disease (MELD) is a worldwide-established scoring system for the evaluation of the severity of liver disease in allocation processes. However, the interpretation of MELD in clinical practice, particularly with regard to prioritizing potential liver transplant recipients, has revealed some hazards. These include the adaptation of MELD based on patient's characteristics, e.g. the presence of hepatocellular carcinoma, kidney failure and cardiovascular disease. In addition, the remaining paucity of organ donors contributes to a rising number of transplantations of high MELD recipients. This leads to the risk of impaired outcomes, especially considering the interaction of additional donor and recipient risk factors, such as extended cold preservation, kidney function and warm ischemia. For a certain patient cohort living donation might represent a feasible approach as reported previously for high MELD patients.

Overall, the interaction of donor and recipient characteristics on the outcomes after LT in high MELD patients remains a scarcely investigated field. Therefore, the identification of factors influencing patient's outcomes after orthotopic liver transplantation becomes increasingly important, especially in high MELD recipients.

Studieoversikt

Status

Fullført

Forhold

Detaljert beskrivelse

The underlying study aims to investigate several questions. The sodium corrected MELD score is the cornerstone of liver allocation, prioritizing patients with the highest short-term mortality risk. However, outcomes after transplantation among recipients with very high MELD scores remain heterogeneous. While some critically ill patients recover and achieve favorable long-term survival, others experience early post-transplant mortality, raising concerns about futile transplantation in a subset of high-risk candidates.

Current allocation systems rely on a static MELD value at the time of transplantation, which may not fully capture the dynamic trajectory of liver disease, the relative contribution of individual MELD components, or the interaction between recipient severity and donor graft characteristics. Improved risk stratification within the high MELD population is therefore needed to better balance urgency and utility in liver allocation.

Primary Objective

To determine whether changes in MELD score (delta MELD) prior to transplantation are predictive of post-transplant survival in high MELD recipients.

Secondary Objectives

To identify clinical and biochemical characteristics associated with futile liver transplantation, defined as early post-transplant mortality among recipients with very high MELD scores.

To evaluate whether exceeding a MELD threshold of 30 is independently associated with poor post-transplant outcomes.

Studietype

Observasjonsmessig

Registrering (Faktiske)

446

Kontakter og plasseringer

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

Studiesteder

    • Ontario
      • Toronto, Ontario, Canada, M5G 2C4
        • Toronto General Hospital
    • Thueringia
      • Jena, Thueringia, Tyskland, 07747
        • Jena University Hospital

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

patients who underwent LT between 2010 and 2025 who were listed with a high MELD at the time of LT ( above 30). LT-R who had a high change of MELD ( above 10 points within 30 days) were assigned to the DMELD+ group, LT recipients without this accelaration were assigned to the DMELD- group.

Beskrivelse

Inclusion Criteria:

  • first LT
  • age above 18 years
  • completeness of dataset
  • liver only

Exclusion Criteria:

  • second or higher LT
  • age below 18 years
  • incomplete dataset
  • combined transplant

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
DMELD+
liver transplant recipients with a positive delta MELD
DMELD-
liver transplant recipients without delta MELD

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
overall mortality of LT recipients
Tidsramme: minimal follow up of 12 months up to fifteen years
overall mortality of liver transplant recipients
minimal follow up of 12 months up to fifteen years

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Perioperative lenght of intensive care unit (ICU) stay
Tidsramme: perioperative ICU stay, measured in days following liver transplantation maximal 24 weeks
Perioperative length of intensive care unit treatment in days,
perioperative ICU stay, measured in days following liver transplantation maximal 24 weeks

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
postoperative assessment of liver function
Tidsramme: laboratory values at routine follow-up appointments within 1 year following LT; usually at one, three, six and twelve months
postopertative liver function measured by laboratory values
laboratory values at routine follow-up appointments within 1 year following LT; usually at one, three, six and twelve months

Samarbeidspartnere og etterforskere

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

Sponsor

Samarbeidspartnere

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)

1. januar 2010

Primær fullføring (Faktiske)

31. desember 2024

Studiet fullført (Faktiske)

31. desember 2025

Datoer for studieregistrering

Først innsendt

24. april 2026

Først innsendt som oppfylte QC-kriteriene

1. mai 2026

Først lagt ut (Faktiske)

6. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

6. mai 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

1. mai 2026

Sist bekreftet

1. mai 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 2026_07_02

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

UBESLUTTE

IPD-planbeskrivelse

Participant data is planned to be published within a manuscript, however data will be anonymized. Nevertheless, if asked for by reviewers or other researchers who have questions regarding the study, anonymized IPD will be provided.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .