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Efficacy, Safety and Tolerability of VS-01 in Adult Patients With Acute-on-Chronic Liver Failure and Ascites (UNVEIL-IT)®

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)

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05900050
Enrollment
15
Registered
2023-06-12
Start date
2023-07-02
Completion date
2025-10-15
Last updated
2026-07-23

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, Ascites

Keywords

Chronic liver diseases, Hepatic Dysfunction, Extrahepatic Organ Dysfunction, Liver Failure, Renal Disease, Hepatic Impairment, Renal Impairment, Hepatic Decompensation, Cirrhosis

Brief summary

A Phase 2, multi-center, randomized, controlled, open-label study to evaluate the effects of the intraperitoneal, liposomal formulation VS-01 in patients with an acute episode of hepatic and/or extrahepatic organ dysfunctions and failures in the presence of liver cirrhosis (Acute-on-Chronic Liver Failure, ACLF) and accumulation of fluid in the abdominal cavity (ascites)

Interventions

DRUGVS-01 on top of SOC

Patients will receive VS-01 intraperitoneally on four consecutive days on top of SOC

OTHERSOC (Control Group)

Patients will receive SOC for decompensated cirrhosis and ACLF

Sponsors

Genfit
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 79 Years
Healthy volunteers
No

Inclusion criteria

1. Patients with ACLF Grade 1, 2, or 3a according to European Association for the Study of the Liver (EASL)-CLIF criteria; 2. Onset of ACLF not more than 14 days before Baseline (BL); 3. Presence of ascites requiring diagnostic or therapeutic paracentesis; 4. Patients with dry body weight ≥40 and \<140 kg; 5. Written informed consent obtained prior to the start of any study-related procedures.

Exclusion criteria

1. Presence of any of the following organ failure(s) as per the EASL-CLIF criteria and/or adapted from CLIF-C Organ Failure (CLIF-C OF)/CLIF- Sequential Organ Failure Assessment (CLIF-SOFA) scores: 1. Respiratory failure necessitating invasive mechanical ventilation; 2. Coagulation failure (INR \> 3.2 or platelet count ≤20 x 109/L); 3. Severe cardiovascular failure requiring the use of high dose vasopressors; 2. ACLF grade 3b: Presence of four or more organ failures as per EASL CLIF criteria; 3. Presence of spontaneous or secondary bacterial peritonitis; 4. Presence of uncontrolled severe infection(with hemodynamic instability or shock); 5. Poorly controlled seizure disorder; 6. Patients with history of upper gastro-intestinal bleeding over the past 7 days prior to BL, acute bleeding or bleeding upon paracentesis at screening (SCR) or BL; 7. Contraindication for paracentesis; 8. Coagulation disorders such as disseminated intravascular coagulation or hemophilia; 9. Potential or known hypersensitivity to liposomes; 10. Potential or known risk factors for allergic/anaphylactoid like reactions (e.g., mastocytosis/elevated basal tryptase) or multiple hypersensitivities; 11. Patients after organ transplantation receiving immunosuppressive medication; 12. Any severe disease considered to be potentially detrimental at the discretion of the Principal Investigator. This includes but is not limited to hepatocellular carcinoma outside Milan criteria, cholangiocarcinoma, extrahepatic cancer over the past 2 years or people who inject drugs; 13. Need for Renal Replacement Therapy or any extracorporeal liver support device (e.g., MARS®, Prometheus®, plasmapheresis); 14. Alfapump® in place to manage ascites; 15. Pregnancy and lactation; 16. Women of child-bearing potential who are not willing to use adequate contraception; 17. Patients who participate in another clinical trial at the time of SCR or within 4 weeks prior to SCR.

Design outcomes

Primary

MeasureTime frameDescription
Chronic Liver Failure Consortium (CLIF-C) ACLF Score at Day 7Day 7The CLIF-C ACLF score is derived from the CLIF-C organ failure (OF) score. The formula for the CLIF-C ACLF score is CLIF-ACLF = 10\*\[0.33\*CLIF-C OF + 0.04\*Age + 0.63\*Ln(white cell count) -2\]. The CLIF-C ACLF score ranges from 0-100, where a higher score indicated a greater mortality risk.

Secondary

MeasureTime frameDescription
Number of Deaths From Day 1 to Day 90Day 1 to Day 9090-Day mortality was reported as the number of deaths from Day 1 to Day 90.
Number of Deaths From Day 1 to Day 28Day 1 to Day 2828-Day mortality was reported as the number of deaths from Day 1 to Day 28.
Time to Death Through Day 90Day 1 to Day 90Time to death was calculated as death date - treatment start date. Participants who were not observed to have encountered the event through Day 90 were censored. The inter-quartile range was obtained via Kaplan Meier estimation.
Number of Participants With ACLF ResolutionBaseline to Day 7 and Day 28ACLF resolution was defined as ACLF grade 'No ACLF', for participants who had ACLF at Baseline.
Time to ACLF Resolution Through Day 28Baseline to Day 28ACLF resolution was defined as ACLF grade 'No ACLF', for participants who had ACLF at Baseline. Time to ACLF resolution was calculated as (ACLF resolution date - treatment start date). Participants who were not observed to have encountered the event through Day 28 were censored at min\[trial discontinuation date; Day 28 visit date or treatment start date +27 if no visit date; last contact/assessment date for participant lost to follow-up; date of liver transplant or transjugular intrahepatic portosystemic shunt (TIPS)\]. The inter-quartile range was obtained via Kaplan Meier estimation.
Number of Participants With ≥ 1 ACLF Grade RegressionBaseline, Day 7 and Day 28ACLF regression was defined as regression of at least one full grade.
Time to ≥ 1 ACLF Grade Regression Through Day 28Baseline and Day 28Time to ACLF ≥ 1 grade regression was calculated as (ACLF ≥ 1 grade regression date - treatment start date). Participants who were not observed to have encountered the event through Day 28 were censored. The inter-quartile range was obtained via Kaplan Meier estimation.
Secondary: Time to Transplant or Death Through Day 90Day 1 through Day 90Time to transplant was calculated as (transplant or death date - treatment start date). Participants who were not observed to have encountered the event through Day 90 were censored. The inter-quartile range was obtained via Kaplan Meier estimation.
Number of Participants With Treatment-emergent Adverse Events (TEAEs)Up to Day 90An AE was defined as any untoward medical occurrence in a patient or clinical investigation participant administered a study drug and that does not necessarily have a causal relationship with this treatment. A TEAE was the appearance or worsening of any undesirable sign, symptom, or medical condition occurring after at least one dose of the study drug had been administered, even if the event was not considered to be related to the study drug. A serious AE (SAE) was any untoward medical event that occurs at any dose that: resulted in death; was life-threatening; required in-patient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; resulted in a congenital anomaly/birth defect; or was an important medical event.

Countries

Belgium, France, Germany, Hungary, Italy, Spain, United States

Contacts

STUDY_DIRECTORPejvack MOTLAGH, M.D, M.Sc

Genfit

Participant flow

Recruitment details

A total of 15 participants were enrolled into this trial in the United States, Germany and France between July 2023 and October 2025.

Pre-assignment details

The total duration of the trial for each participant was up to 94 days. The screening period was up to 4 days, and participants were followed from Day 1 up to Day 90. The trial was discontinued prematurely at the Sponsor's decision.

Baseline characteristics

Characteristic
Age, Continuous54.43 years
STANDARD_DEVIATION 9.571
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
11 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
4 / 92 / 6
other
Total, other adverse events
9 / 96 / 6
serious
Total, serious adverse events
7 / 95 / 6

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 24, 2026