Safety and Performance Trial of DIALIVE Liver Dialysis Device in Acute On Chronic Liver Failure Patients

Inclusion Criteria: * Male or female subjects aged ≥18 years ≤81yr who have given informed consent to participate in the study and are able to understand and comply with the requirements of the study (otherwise written informed consent must be obtained on behalf of the subject in accordance with local ethical and legal requirements). * History indicative of alcohol-related cirrhosis based on clinical, radiological and/or histological evidence. * History of an acute decompensating event (including but not limited to ascites, gastrointestinal bleeding, hepatic encephalopathy and/or acute bacterial infections), occurring within ≤6 weeks of screening. * • Subject with : * ACLF Grade 1, 2 or 3a defined per the CLIF-C OF scoring system OR * single hepatic organ failure for serum bilirubin \> 20 mg/dL (342 µmol/L) at screening and randomization, OR * AKI-stage 1b (sCr \> 1.5 mg/dL or 134 µmol/L). * Where a subject has received corticosteroids for alcohol-induced ACLF, is unresponsive to at least 7 days of treatment (where lack of response defined as Lille score \> 0.45 or steroids stopped before 7 days due to any complication such as infection). This refers to the first course of corticosteroid therapy only. Exclusion Criteria: * Co-infection with HIV and AIDS defining illness. * Subjects with acute or sub-acute liver failure without underlying cirrhosis. * Subjects with severe thrombocytopaenia, defined by the platelet count of \< 40,000 / mm3 or rapid reduction in platelet count (\> 50% reduction) 24 hrs prior to inclusion. * Subjects with International Normalised Ratio (INR) \> 3 * ACLF 3b patients, i.e. ACLF with more than 3 organ failures. * Subjects with cirrhosis who develop decompensation at any time in the post-operative period following partial partial liver resection or major non-liver surgery. * Subjects with uncontrolled infection. Patients may be entered into the study provided antimicrobials have been administered for at least 48 hours with an appropriate response observed prior to randomization. * Subjects with respiratory organ failure (as per CLIF-C OF scoring: PaO2/FiO2\< 200 mmHg or 27 kPa or SaO2/FiO2 \< 214). * Subjects with haemodynamic instability: i) persistent hypotension (mean arterial pressure \< 65 mmHg) with evidence of tissue hypoperfusion, not responsive to volume resuscitation and/or low dose vasopressor support; ii) a norepinephrine dose of \> 0.2 µg/kg/min, or a second pressor (terlipressin for variceal haemorrhage and/or hepato-renal syndrome does not count as pressor, unless it is specifically used to treat systemic hypotension) at screening or randomization. Patients can be reconsidered for study inclusion after at least a 24 hour period of norepinephrine requirement \< 0.2 µg/kg/min. * Subjects not considered appropriate for full active treatment including organ support or those with a Do Not Attempt Cardio-Pulmonary Resuscitation order (DNACPR). * Subjects with active, or with a history of non hepatic malignancy unless adequately treated or in complete remission for five or more years. * Patients with HCC outside Milan criteria. * Significant systemic or major illness other than liver disease, including coronary artery disease, cerebrovascular disease, pulmonary disease, renal failure, serious psychiatric disease, that, in the opinion of the Investigator would preclude the subject from participating in and completing the study. * Subject who has received any investigational drug or device within 30 days of dosing or who is scheduled to receive another investigational drug or device in the course of the study; concomitant observational studies are allowed. * Evidence of uncontrolled seizures. * Subjects diagnosed with Creutzfeldt-Jakob disease. * In females: known pregnancy or lactating. * Subjects weighing less than 30 kg (as per contra-indications of oXiris and septeX) * Where subjectspresent with a known allergy to heparine of have type II thrombocytopaenia caused by heparin (HIT syndrome type II) * In the opinion of the investigator, it is unsafe for the patient to be considered for the study.