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A clinical study to evaluate a new medicinal product VS-01 in patients with an acute episode on top of a chronic liver disease (called acute-on-chronic liver failure) who experience accumulation of fluid in the abdominal cavity (called ascites) as well as intellectual, behavioral decay and physical decay.

A Phase 2a, open-label, randomized, controlled, multi-center, proof of concept study, to assess the efficacy, safety and tolerability of VS-01 on top of standard of care, compared to standard of care alone, in adult patients with acute-on-chronic liver failure (ACLF) grades 1 and 2 and ascites - UNVEIL-IT

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-002617-33-DE
Enrollment
60
Registered
2021-07-05
Start date
2022-08-17
Completion date
Unknown
Last updated
2024-06-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute-on-chronic liver failure (ACLF) is characterized by hepatic and extrahepatic organ dysfunction and/or failure and highly activated systemic inflammation. It leads to an accumulation of different metabolites, interalias ammonia, which cannot be metabolized. Hyperammonemia leads to Hepatic Encephalopathy (HE). ACLF is a major cause of death in cirrhosis, with an approximately 50% mortality rate. The selected patient population is ACLF grade 1 and 2 patients with ascites. MedDRA version: 24

Interventions

Sponsors

Versantis AG
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients with liver cirrhosis, diagnosed by standard clinical criteria, imaging findings and/or histology with any underlying etiology; 2. Patients with liver cirrhosis and ACLF grade 1 or 2 (according to EASL-CLIF criteria as described in the EASL-Clinical Practice Guideline on decompensated liver cirrhosis (EASL Clinical Practice Guidelines, 2018); organ failures will be calculated based on the CLIF-C OF score) triggered by any acute insult other than those listed in the exclusion criteria: ACLF grade 1 patients meeting one of the following: a. Single kidney failure (serum creatinine = 2 mg/dL) without RRT +/- liver, cerebral, coagulation, circulation or respiratory dysfunction; b. Liver failure (serum bilirubin = 12.0 mg/dL) with either kidney dysfunction (serum creatinine = 1.5 – =65 years) yes F.1.3.1 Number of subjects for this age range 10

Exclusion criteria

Exclusion criteria: 1. Patients with acute or sub-acute liver failure without underlying cirrhosis; 2. Presence of the following organ failure(s) as per the EASL-CLIF criteria and/or adapted from CLIF-C OF/CLIF-SOFA scores: a. Respiratory failure as defined by Partial pressure of oxygen (PaO2)/Fraction of inspired oxygen (FiO2) = 200, or oxygen saturation (SpO2)/FiO2 = 214 or mechanical ventilation; b. Coagulation failure with an INR > 3.0 or platelet count = 20 x 109/L; c. Severe cardiovascular failure requiring the use of vasopressors (dopamine >15 µg/kg/min, or epinephrine > 0.1 µg/kg/min, or norepinephrine > 0.1 µg/kg/min). It should be clarified that the use of terlipressin or low-dose norepinephrine in case of hepatorenal syndrome (HRS) is not an exclusion criterion; d. HE West Haven grade 4 3. ACLF grade 3: Presence of three or more organ failures as per EASLCLIF criteria as described in the EASL-Clinical Practice Guideline on decompensated liver cirrhosis; organ failures will be calculated based on CLIF-C OF score); 4. Presence of spontaneous or secondary bacterial peritonitis: a. presence of neutrophils in a normally sterile body fluid (i.e., neutrophil counts > 250/mm3 in ascitic fluid); 5. Presence of spontaneous bacterial pleural empyema: a. In case of pleural effusion, positive pleural fluid culture and increased neutrophil count of > 250/mm3 or negative pleural fluid culture and a neutrophil count of 3 > 500/mm in the absence of pneumonia; 6. Patients with medical history of spontaneous bacterial peritonitis over the past 4 weeks; 7. Known active tuberculosis, or latent tuberculosis requiring treatment; 8. Presence of uncontrolled severe infection at SCR or BL (patients may be enrolled provided anti-infectives have been administered for at least 24 h before SCR or 48 h before BL with an appropriate response prior to randomization): a. Infections with hemodynamic instability or septic shock, such as but not limited to UTI, pneumonia, and skin/soft tissue infection; b. Acute obstructive cholangitis in the presence of cholestasis, compatible symptoms (right upper quadrant pain and jaundice) and radiological data of biliary obstruction with hemodynamic instability or septic shock; c. Patients with sepsis or septic shock of unknown source; 9. Patients with known seizure disorder; 10. Patients with medical history of gastro-intestinal bleeding over the past 2 weeks, acute bleeding or bleeding upon paracentesis at SCR or BL; 11. Contraindication for paracentesis according to the EASL Clinical Practice Guidelines 2018, and AASLD guideline on the treatment of ascites, spontaneous bacterial peritonitis and HRS-AKI for the management of patients with decompensated cirrhosis; 12. Coagulation disorders such as disseminated intravascular coagulation (DIC) or hemophilia; 13. TIPS procedure or any major abdominal surgery having occurred in the past 4 weeks prior to SCR; 14. Potential or known hypersensitivity to liposomes; 15. Potential or known risk factors for allergic/anaphylactoid like reactions (e.g., mastocytosis/elevated basal tryptase) or multiple hypersensitivities; 16. Patients with known porto-pulmonary hypertension (PPHT) and hepato-pulmonary syndrome; 17. Patients after organ transplantation receiving immunosuppressive medication; 18. Any severe disease considered to be potentially detrimental at the discretion of the PI. This includes but is not limited to hepatocellular carcinoma (HCC) outside Milan criteria, cholangiocarcinoma, extrahe

Design outcomes

Secondary

MeasureTime frame
Secondary end point(s): 1. Outcome: a) 90 day - mortality; b) 28 day - mortality; c) Time to death through Day 90; d) Time to death through Day 28; e) Change in ACLF grade through/at Days 7 and 28: - Rate of ACLF resolution; - Time to ACLF resolution; - Rate of = one ACLF grade regression; -Time to = one ACLF grade regression; f) Transplant-free survival through/at Day 90; g) Transplant-free survival through/at Day 28; 2. Safety a) Incidence rate, severity, and relationship to VS-01 of adverse drug reactions and serious adverse drug reactions. ;Timepoint(s) of evaluation of this end point: 1. Outcome: a) 90 day - mortality; b) 28 day - mortality; c) Time to death through Day 90; d) Time to death through Day 28; e) Change in ACLF grade through/at Days 7 and 28: - Rate of ACLF resolution; - Time to ACLF resolution; - Rate of = one ACLF grade regression; -Time to = one ACLF grade regression; f) Transplant-free survival through/at Day 90; g) Transplant-free survival through/at Day 28; 2. Safety - All AEs will be collected by the Investigator throughout the study period starting from the date of consent until the EOS visit on Day 90

Primary

MeasureTime frame
Main Objective: To evaluate the efficacy of VS-01 administered intraperitoneally (i.p.) daily over 4 days on top of standard of care (SOC) vs. SOC alone in patients with ACLF grades 1 and 2 as measured by Chronic Liver Failure Consortium Acute on-Chronic Liver Failure (CLIF-C ACLF) score at Day 7;Secondary Objective: - To evaluate the efficacy of VS-01 administered i.p. daily over 4 days on top of SOC vs. SOC alone in patients with ACLF grades 1 and 2 with respect to: a. Mortality rate; b. Time to death; c. ACLF grade change and time to resolution of ACLF; d. Transplant-free survival; - To characterize the safety and tolerability of VS-01 in ACLF patients following i.p. administration of VS-01 ;Primary end point(s): CLIF-C ACLF score at Day 7 ;Timepoint(s) of evaluation of this end point: CLIF-C ACLF score Day 7

Countries

Belgium, France, Germany, Spain, United States

Contacts

Public ContactHead of Clinical Operations

Versantis AG

clinical@versantis.ch+41792329073

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026