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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT06340269
Other study ID # PJ2308-0025
Secondary ID
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date May 2024
Est. completion date March 2025

Study information

Verified date May 2024
Source Mexbrain
Contact Karen GILLANT
Phone +33674152663
Email Karen.gillant@MEXBRAIN.COM
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The goal of this clinical trial is to test the MEX-CD1 hemodialysis medical device in patients suffering from ACLF. The main questions it aims to answer are: - Is the device safe when used according to the instructions for use? - Does the device work as expected by removing the excess of free copper from the blood? Patients will receive 3 MEX-CD1 Slow Low volume CVVHD within 1 week.


Description:

This study investigates the safety and performance of the MEX-CD1 slow low volume CVVHD device in patients suffering from ACLF. Acute-on-chronic liver failure (ACLF) is defined as a syndrome in patients with acutely decompensated cirrhosis, associated with single or multiple organ failures, and characterized by a high short-term mortality. ACLF is frequently triggered by a precipitating event (alcoholic hepatitis, infection, gastrointestinal haemorrhage) and characterized by an intense systemic inflammatory response driven per pathogen-associated molecular patterns (PAMPs) and/or damage-associated molecular patterns (DAMPs) responsible of the development of organs failure through tissues hypoperfusion, immune-mediated tissue damages and mitochondrial dysfunction. Very importantly, ACLF is a very dynamic syndrome that has potential for reversibility. It is hypothesized that the extraction of non-transferrin bound iron (NTBI) could break down the vicious cycle of the excessive inflammatory responses, reduce oxidative stress and inhibit pathogen proliferation in ACLF patients. As a consequence, it is hypothesized that the extraction of NTBI could promote improvement of ACLF grade n to ACLF grade n-1 or no ACLF, at least, it is hypothesized that the extraction of NTBI will stop the progression of ACLF by preventing further organ failures and reducing bacterial infection. Thereby, the extraction of NTBI could restore the eligibility of ACLF patients to liver transplantation, and, with or without liver transplantation, allow an earlier discharge from intensive care and prolong survival. The proposed medical device allows, by combining dialysis to a hyper-chelating colloidal dialysate (MEX-CD1) to specifically extract free iron from the blood. All patients enrolled in this study will receive 3 MEX-CD1 Slow Low volume CVVHD within 1 week. The duration of each MEX-CD1 Slow Low volume CVVHD session is 3h20.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 10
Est. completion date March 2025
Est. primary completion date March 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria: - Male or female subjects =18 years and =80 years - Subject is able to provide informed consent to participate in the study, otherwise written consent must be obtained on behalf of the subject by a next of kin or legal representative in accordance with local ethical and legal requirements - History of an acute decompensation event (including but not limited to ascites, gastrointestinal bleeding, hepatic encephalopathy and/or acute bacterial infections), occurring within =6 weeks of screening - Cirrhosis (diagnosed based on clinical, biological, morphological parameters or liver biopsy) - Subject with: - ACLF Grade 2, 3a or 3b based on the CLIF-C OF score - Under continuous renal replacement therapy (CRRT) or any organ support device that requires catheter placement Exclusion Criteria: - Subjects with acute or sub-acute liver failure without an underlying cirrhosis - Subjects not considered appropriate for full active treatment including organ support or those with a Do Not Attempt Cardio-Pulmonary Resuscitation order (DNACPR) - Subjects who have received any investigational drug or device within 30 days of dosing or who are scheduled to receive another investigational drug or device in the course of the study; concomitant observational studies are allowed - Evidence of uncontrolled seizures - In females: known pregnancy or lactating - Patients with a known allergy to shellfish - Patients for who, in the opinion of the investigator, it would be unsafe to be considered for the study - Vulnerable population according to Articles 64 to 68 of the Regulations (EU) 2017/745 on Medical Devices - Patient with weight < 30 kg

Study Design


Intervention

Device:
MEX-CD1 Dialysis
MEX-CD1 is a hyper-chelating colloidal solution that can be added to the dialysate to be used in Slow low-volume continuous veno-venous hemodialysis. One treatment will last 3 hours and 20 minutes. Patients enrolled are hospitalized in Intensive Care Unit.

Locations

Country Name City State
France Hôpital Croix Rousse, Service d'hépatologie et gastroentérologie Lyon Rhône-Alpes

Sponsors (2)

Lead Sponsor Collaborator
Mexbrain Slb Pharma

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary SADE for Safety purpose The safety will be assessed by percentage of subjects who discontinued MexACLF due to a serious adverse device event (SADE) between Day 1 and Day 7. From the enrollment until the last visit, assessed up to 7 days.
Secondary SAE for Safety purpose The safety will be assessed by the percentage of patients who experience at least one related Serious Adverse Event (SAE) between Day 1 and Day 7. From the start of the first MEX-CD1 treatment until the last visit, assessed up to 7 days.
Secondary Performance of MEX-CD1 The performance of the MEX-CD1 slow low-volume CVVHD treatment in terms of iron extraction will be measured by the amount of iron extracted in the dialysate bags per treatment. 3 hours and 20 minutes; from treatment start (0 hours) to treatment end (3h20)
Secondary Change in Acute on Chronic Liver Failure (ACLF) Grade Assessment of the change in ACLF Grade between the baseline and the end of study Min value = 0 (no ACLF) Max value=3b (Worse outcome) Between the screening visit and the last visit, assessed up to 7 days.
Secondary Change in CLIF-C ACLF score Assessment of the change in Chronic Liver Failure-Consortium (CLIF-C) ACLF score between the baseline and the end of study. CLIF-C ACLF = 10 × (0.33 × CLIF-C OFs + 0.04 x Age + 0.63 × ln (WBC count)-2)
CLIF-OFs= Chronic Liver Failure Consortium Organe Failure Min value=6 (No organe Failure) Max value=18 (6 organe failures)
Between the screening visit and the last visit, assessed up to 7 days.
Secondary Improvement in individual organ function Assessment of the change in individual organ function by using the CLIF sequential OF score
From 1 (no organe failure) to 3 (worse outcome) for the 6 organes below:
Liver ; kidney ; Brain ; Coagulation ; Circulation ; Respiratory
Between the screening visit and the last visit, assessed up to 7 days.
Secondary Development of secondary infection Assessment of development of secondary infection by need for new antibiotic therapy Between the screening visit and the last visit, assessed up to 7 days.
Secondary Status of ICU Length of stay in ICU Between the screening visit and the last visit, assessed up to 28 days.
Secondary hospital discharge Length of stay at hospital Between the screening visit and the last visit, assessed up to 28 days.
Secondary Mortality Assessment of the survival rate Between the screening visit and the last visit, assessed up to 28 days.
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