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COOLEY- Study: aCute On chrOnic Liver failurE Using the cYtosorb Device

COOLEY- Study: aCute On chrOnic Liver failurE Using the cYtosorb Device

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06079021
Acronym
COOLEY
Enrollment
20
Registered
2023-10-12
Start date
2024-06-08
Completion date
2027-12-31
Last updated
2026-05-01

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, Anticoagulant Adverse Reaction, Sarcopenia, Ultrasonography

Keywords

acute on chronic liver failure, sarcopenia, citrate anticoagulation, low molecular weight heparins, hand grip strength, skeletal muscle ultrasound, hemoadsorption, CRRT

Brief summary

A Prospective, Single-Center trial, in Patients With Acute on Chronic Liver Failure. Study of Standard Medical Care Plus CytoSorb® Compared to Standard Medical Care Alone in a historical group.

Detailed description

The study team wants to investigate the effect of Cytosorb hemoadsorption on the bilirubin level as well as on the ammonia level changes induced by the therapy in patients with Acute on Chronic Liver Failure (ACLF) . In this group of patients with ACLF grade 2 and 3 the investigators want to determine the prevalence and development of sarcopenia by sequential quadriceps and thenar ultrasound images and by handgrip strength measurement. The investigators will objectify muscle mass by skeletal muscle ultrasound of quadriceps and thenar muscles in this sickest subgroup of cirrhotic patients. Ultrasound forms a part of the daily clinical routine in ICU. The study team wants to compare both measurements and objectify the evolution to study the reliability and validity of ultrasound to quantify muscles in chronic liver disease and its clinical values. Most of ultrasonographic studies are based on quadriceps exploration, which is more inconvenient and takes more time than exploring the hands because patients need to remove clothes and lie down. The study team also hypothesizes that thenar muscles are less subject to fluid overload than the quadriceps muscles are. When available, lumbar skeletal muscle indices will be compared by computed tomography or magnetic resonance imaging. In this group of patients with ACLF, receiving Continuous Renal Replacement Therapy (CRRT) the appropriate choice of anticoagulant remains controversial. The objective of this study is to compare the efficacy and safety of regional citrate anticoagulation (RCA) and Low Molecular Weight Heparin (LMWH) in critically ill ACLF patients requiring CRRT. These two commercially available anticoagulation methods are used in daily practice in the ICU. The first 10 patients will receive anticoagulation with LMWH with monitoring of anti-Xa. The second cohort of patients will receive RCA.

Interventions

DEVICECytoSorb

Application of CytoSorb treatment for 72 hours in patients with ACLF

Sponsors

University Hospital, Antwerp
Lead SponsorOTHER
CytoSorbents Europe GmbH
CollaboratorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Application of CytoSorb treatment to ACLF patients

Eligibility

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

Inclusion criteria

* adult patients (≥ 18 years) admitted to the University Hospital of Antwerp (UZA), Belgium. * Written informed consent from patient or if not possible due to encephalopathy (\> grade 2): legal representative * acute-on-chronic liver failure (ACLF) grade ≥ 2: * Acute decompensation event (identifiable trigger) * Hepatic encephalopathy grade ≥ 2 * Acute kidney injury (AKI) according to Kidney Disease: Improving Global Outcome (KDIGO) criteria stage 3 (≥ 3-fold increase of serum creatinine OR increase of serum creatinine to ≥ 4 mg/dl OR urine output ≤ 0.3 ml/kg/h for ≥ 24 hours OR anuria for ≥ 12 hours) * Serum bilirubin ≥ 10 mg/dl * Hemodynamic instability with vasopressor support (norepinephrine \> 0.05 mcg/kg/min)

Exclusion criteria

* • known patient will against participation in the study or against the measures applied in the study * a decision made prior to inclusion to stop further treatment of the patient within the next 24 hours * no complete remission of malignancy including hepatocellular carcinoma within the past 12 months * ongoing intermittent or CRRT before study inclusion

Design outcomes

Primary

MeasureTime frameDescription
The impact of CytoSorb on serum bilirubin removal24 and 72 hours20 participants with a serum bilirubin of ≥ 10 mg/dl will undergo CytoSorb for 72 hours
Changes in ammonia and severity of hepatic encephalopathy during treatment period24 and 72 hoursThe West Haven criteria are used for grading the severity of hepatic encephalopathy, which include 5 grades ranging from minimal (slightly impaired) to grade IV (comatose)

Secondary

MeasureTime frameDescription
changes in hemodynamic profile24 and 72 hoursChange in hemodynamic profile (i.e. mean arterial pressure normalized to norepinephrine equivalents) during the 72-h study intervention.
Vasopressors24 and 72 hoursDuration of vasopressor support in days
ACLF (Acute on Chronic Liver Failure) Gradingfirst weekAssessment of ACLF grading (minimum 0 - maximum 3; higher score means a worse outcome) during the 72h intervention up to 1 week after diagnosis of ACLF
SOFA Score0, 72 and 168 hoursChanges in Sequential Organ Failure Assessment (SOFA) (minimum 0-maximum 24; higher score means a worse outcome) score during the 72h study period and up to 1 week after.
scores15 daysChanges in CLIF-C (Chronic Liver Failure Consortium)(minimu 0 - maximum 100; higher score means a worse outcome) score during the 72-h intervention, up to 15 days after diagnosis of ACLF
Ventilation0, 24 and 72 hoursDuration of mechanical ventilation,
Cytokines0, 24 and 72 hoursChanges in cytokines (IL-6, IL-8, IL-16, TNF (tumor necrosis factor)-alpha) value (pg/ml)
Mortality28, 60 and 90 days after enrolmentMortality at 28, 60 and 90 days after enrolment
Improvement of Renal function after application of CytoSorb7, 14, 21 and 90 days after enrolmentAcute kidney injury (AKI) according to Kidney Disease: Improving Global Outcome (KDIGO) criteria stage 3 (≥ 3-fold increase of serum creatinine OR increase of serum creatinine to ≥ 4 mg/dl OR urine output ≤ 0.3 ml/kg/h for ≥ 24 hours OR anuria for ≥ 12 hours) will receive CytoSorb treatmetn. Serum creatinine will be measured at day 7, 14, 21 and 90 days
Cytosorb filterup to 28 days after enrolmentAdverse events attributable to CytoSorb up to 28 days after enrolment
Change in Bile acids72 hours after enrolmentBile acids after 72 hours
Sarcopenia0, 24 and 72 hoursPrevalence and development of sarcopenia
Anticoagulation0, 24 and 72 hoursAdverse events attributable to anticoagulation
SAPS II scoreDay 0, Day 3, Day 7Simplified Acute Physiology Score II (SAPS II) (minimum 0 - maximum 163; higher score means a worse outcome) during the 72-h study intervention and up to 1 week after
Change in inflammatory values: lactateDay 0, Day 1 and Day 3measurement of lactate (reference \< 2 mmol/L)
Change in inflammatory values: procalcitoninDay 0, Day 1 and Day 3measurement of procalcitonin (reference \< 0.5 ng/mL)

Countries

Belgium

Contacts

CONTACTKarolien Dams
Karolien.Dams@uza.be+3238215175
CONTACTRita Jacobs
rita.jacobs2@uza.be+3238214795
PRINCIPAL_INVESTIGATORKarolien Dams

University Hospital, Antwerp

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 2, 2026