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NCT Number: NCT07556055

Etiology and Prognostic Factors in Patients With Acute Liver Failure

Acute liver failure (ALF) is a rare but life-threatening condition with high mortality. Despite advances in supportive care and liver transplantation, prognosis varies significantly across etiologies, particularly in patients with indeterminate causes.

This study aims to investigate the dynamic changes of clinical and biochemical indicators, identify potential etiologies-especially in indeterminate ALF-and evaluate prognostic risk factors. A dynamic prediction model will be developed to optimize clinical decision-making, including liver transplantation timing.

Both retrospective and prospective cohorts will be included. Multi-omics analyses (including transcriptomics, proteomics, metabolomics, and metagenomic sequencing) will be performed on liver tissue and biological samples to explore disease mechanisms and etiology.

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Key information

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients meeting diagnostic criteria for acute liver failure:

Adults: Acute onset without pre-existing liver disease, development of hepatic encephalopathy ≥ grade II within 4 weeks Pediatrics: Acute onset (<26 weeks), no chronic liver disease, coagulopathy not corrected by vitamin K: INR ≥1.5 with encephalopathy OR; INR >2 regardless of encephalopathy

  • Patients (or guardians) who provide informed consent

Exclusion criteria

  • Presence of end-stage extrahepatic disease without effective treatment
  • Pregnant or breastfeeding women
  • Inability or unwillingness to provide informed consent or comply with study procedures

Treatment and study plan

Primary outcomes

  1. Overall Survival

    Time frame: Up to 3 years after enrollment (every 3 months during the first year, then annually until year 3)

  2. Transplant-Free Survival

    Time frame: Up to 3 years after enrollment (every 3 months during the first year, then annually until year 3)

  3. Liver Transplantation Rate

    Time frame: Up to 3 years after enrollment (every 3 months during the first year, then annually until year 3

Secondary outcomes

  1. Etiologic features identified by multi-omics analysis

    Time frame: From enrollment to completion of biospecimen collection and etiologic multi-omics assessment, up to 7 days

    Etiologic features in participants with acute liver failure will be assessed through multi-omics analyses of biospecimens, including liver tissue obtained from resected diseased liver during surgery (approximately 3 cm³) or from one ultrasound-guided liver biopsy core (approximately 2 cm in length), together with blood, urine, and stool samples. Multi-omics testing includes transcriptomic sequencing, proteomic analysis, metabolomic analysis, and metagenomic sequencing.

  2. Short-Term Mortality

    Time frame: 90 days after enrollment

  3. Development of Prognostic Prediction Model

    Time frame: Up to 3 years after enrollment

    A prognostic model will be developed using clinical variables, laboratory parameters, and dynamic changes over time. Multivariable logistic regression and receiver operating characteristic (ROC) curve analysis will be used to evaluate model performance, including discrimination and calibration.

  4. Change in alanine aminotransferase (ALT) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum ALT measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  5. Change in aspartate aminotransferase (AST) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum AST measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  6. Change in total bilirubin over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial total bilirubin measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  7. Change in international normalized ratio (INR) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial INR measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  8. Change in prothrombin time (PT) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial PT measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  9. Change in serum creatinine over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum creatinine measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  10. Change in C-reactive protein (CRP) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum C-reactive protein measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  11. Change in direct bilirubin over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial direct bilirubin measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  12. Change in prothrombin activity (PTA) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial prothrombin activity (PTA) measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  13. Change in blood ammonia over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial blood ammonia measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  14. Change in blood phosphorus over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial blood phosphorus measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  15. Change in white blood cell count (WBC) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial white blood cell count (WBC) measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  16. Change in red blood cell count (RBC) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial red blood cell count (RBC) measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  17. Change in hemoglobin (HGB) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial hemoglobin (HGB) measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  18. Change in platelet count (PLT) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial platelet count (PLT) measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  19. Change in D-dimer over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial D-dimer measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  20. Change in serum albumin over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum albumin measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  21. Change in arterial lactate over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial arterial lactate measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  22. Change in blood glucose over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial blood glucose measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  23. Change in arterial pH over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial arterial pH measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  24. Change in CD4+ T-cell count over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial CD4+ T-cell count measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  25. Change in CD8+ T-cell count over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial CD8+ T-cell count measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  26. Change in CD19+ B-cell count over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial CD19+ B-cell count measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  27. Change in CD56+ natural killer cell count over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial CD56+ natural killer cell count measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  28. Change in CD4+/CD8+ ratio over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial CD4+/CD8+ ratio measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  29. Change in immunoglobulin M (IgM) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum immunoglobulin M (IgM) measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  30. Change in immunoglobulin G (IgG) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum immunoglobulin G (IgG) measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  31. Change in immunoglobulin A (IgA) over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum immunoglobulin A (IgA) measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  32. Change in complement C3 over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum complement C3 measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

  33. Change in complement C4 over time

    Time frame: Every 48 hours from admission to discharge, assessed up to 30 days

    Serial serum complement C4 measurements will be obtained every 48 hours from admission until discharge to assess dynamic changes during hospitalization.

Study contacts

Contact information is provided by the study sponsor or research team.

Wan-Ting Zhang, MD

CONTACT

[email protected]

+86 13699189579

Sponsors and collaborators

Lead sponsor

Li-Ying Sun

Other

Registry information

Official study title

A Bidirectional Cohort Study on the Etiology and Prognostic Factors of Acute Liver Failure and Development of a Dynamic Prediction Model

Important dates

Study start
2026
Primary completion
2036
Study completion
2037
First posted
Apr 29, 2026
Registry last updated
Apr 29, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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