Active clinical trials for "Liver Failure, Acute"

Autoimmune hepatitis (AIH) is a chronic liver disease, which is characterized by the increase of immunoglobulin G (IgG) level, the presence of auto-antibodies and a typical histology, in the absence of other liver disease. Due to the heterogeneity of AIH manifestations, different scoring systems have been validated in order to make a reliable diagnosis. The two most recent scoring systems are: the revised International Autoimmune Hepatitis Group (IAIHG) criteria and the IAIHG simplified criteria. The second one is recommended by the European Association for the Study of the Liver (EASL) clinical practice guidelines (CPGs). The EASL clinical practice guidelines suggests that the treatment of ASAIH (Acute Severe AIH) is high doses of corticosteroids (superior to 1mg/kg/day) as early as possible and a lack of improvement within seven days should lead to listing for emergency liver transplantation (LT). However, the "lack of improvement" is not objectively defined and the grading of recommendation is III (Opinions of respected authorities). The hypothesis of the study is that the previously developed decisional score on a retrospective series will prospectively allow the differentiation between patients with ASAIH (Acute Severe AIH) who respond to corticosteroid therapy and should be maintained on treatment and patients who do not respond and should be rapidly evaluated for LT. The score will be computed at day 3 since corticosteroid introduction.

A critical issue of the clinical syndrome in liver failure is the accumulation of toxins not cleared by the failing liver. Based on this hypothesis, albumin dialysis is used to remove those substances. Albumin dialysis with recirculation (MARS) is the most used system but required specific system and expert environment. Alternative system without recirculation (SPAD) is less expensive and can be realised in critical care services trained to extrarenal epuration. The primary objective of this study is to compare biological and clinical efficacy, pulsatility index of middle cerebral artery modification and tolerance of both systems. This is a prospective, open, cross-over comparative study of two albumin dialysis system. Each patient will receive the two systems in an randomly assessed order. Patients are divided up according to bilirubin plasmatic level. (250µmol/L to 400 µmol/L and >400µmol/L).

Fulminant hepatic failure (FHF) in children is a potentially devastating disease. The mortality rate may reach 80-90% in the absence of liver transplantation. Liver injury is considered to be mainly immune mediated with augmentation of cytolytic pathways of infected hepatocytes. For that, it is suggested that corticosteroids modulate the activity of the disease by suppressing the immune system.

The study will be conducted on patients admitted to Department of Hepatology from Jan 2016 to Jan 2018 at Institute of Liver & Biliary Sciences, New Delhi. Study group will comprise of patients with acute liver failure (ALF) who have no option for liver transplant (due to any reason) or have contraindications for liver transplant or have no prospective living donor and will be assessed for enrollment in the trial.

The aim of this study is to examine if high-volume plasma exchange has a positive effect on mortality in patients with acute liver failure.

The purpose of this study is to determine if treatment with the ELAD Bioartificial Liver Assist Device is beneficial to patients in Acute Liver Failure either as a bridge to liver transplant or bridge to native liver recovery.

This was a non-blinded, prospective clinical study. From June 2020 to October 2021, 254 patients with HBV-ACLF were treated at the Department of Infectious Diseases, Xiangya Hospital, Central South University (Changsha, China). 186 patients who met the enrollment criteria were included in this study. Inclusion criteria were as follows: (1) aged 18-65 years old; (2) patients with ACLF caused by HBV infection; (3) meeting the diagnostic criteria for ACLF by the Asian Pacific Association for the Study of Liver (APASL).The exclusion criteria were as follows: (1) pregnancy or lactation; (2) previous liver transplantation; (3) hepatocellular carcinoma or other malignancy; (4) human immunodeficiency virus(HIV) infection or other immunocompromised states; (5) complicated with underlying diseases such as severe heart, respiratory, and blood system diseases. Based on the inclusion and exclusion criteria, the investigators randomly matched patients at a 1:1:1 ratio to three groups whose age, sex ratio, complication, and liver function were comparable: comprehensive medical treatment (Control group), PE group, and DPMAS plus half-dose sequential PE (DPMAS + PE group). As a result, 62 subjects per group were recruited into the study. This study was approved by the Clinical Research Ethics Committee of Xiangya Hospital, Central South University with informed content obtained from all participants (No. 202201022). The study protocol followed the principles of the Helsinki Declaration strictly. All the 186 patients enrolled received comprehensive medical treatment after admission to the hospital, including anti-viral treatment, general supportive treatment, supplementation of blood products, such as albumin and plasma, and symptomatic treatment.

Patients with ALF (Acute liver Failure) would undergo a detailed clinical evaluation. Information would be collected regarding the onset and duration of symptoms, etiology, and severity of disease, other baseline clinical features, demographic characteristics, routine biochemical and hematological investigations. Patients would also be screened for the assessment of raised intracranial hypertension by either clinical or neuroimaging or by ONSD (optic nerve sheath diameter) and TCD (Transcranial doppler ultrasonography). Patient found to be having risen ICP (Intra Cranial Pressure) would be randomized in the two groups of the study. The group A would receive intravenous mannitol 20 to 30 minutes every 4 hourly where as those in the group B would be given 3% hypertonic saline as continuous infusion at a rate of 25ml /hr and titrated q4 hrs per sliding scale to achieve a target serum sodium level of 144-155 mmol/L .Both the groups would receive other supportive measures such as head end elevation, oxygen supplementation, dextrose infusion to maintain normoglycemia standard medical treatment.

Acute-on-chronic liver failure (ACLF) refers to a liver failure syndrome in which some patients with chronic liver disease with relatively stable liver function suffer from acute liver decompensation and liver failure due to the effects of various acute injury factors，while acute liver failure (ALF) refers to a potentially reversible disorder that was the result of severe liver injury, with an onset of encephalopathy within 8 weeks of symptom appearance and in the absence of pre-existing liver disease. Liver transplantation is the only curative treatment for this type of end-stage liver disease, but the rapid disease progression and lack of donors limit its application. The potential of MSCs to repair or regenerate damaged tissue and suppress immune responses makes them promising in the treatment of liver diseases, especially in the field of liver transplantation. Many studies have shown that MSC-based therapies can reduce the symptoms of liver disease due to their paracrine effects. It has been confirmed in previous studies that infusion of allogeneic MSCs is safe and convenient for patients with ACLF and improve liver function and decrease the incidence of severe infections. Compared to the cells they derive from, mesenchymal stem cells-derived extracellular vesicles (MSC-EVs) are gradually gaining attention for their enhanced safety, as they do not replicate or cause microvascular embolism, and can be easily stored without losing their properties. It represents a novel and effective cell-free therapeutic agent as alternative to cell-based therapies for liver diseases, and liver failure was also concerned. This study was designed to evaluate the safety and efficacy of MSC-EVs in ACLF/ALF .

To investigate the safety of Stemchymal® via intravenous (IV) infusion in acute liver failure (ALF) and acute on chronic liver failure (ACLF) patients.