The purpose of this study is to establish the effectiveness of the combined drug approach (anti-thrombin III, infliximab, apotransferrin, human recombinant erythropoietin beta, C1-inhibitor, glutathione, alfa-tocopherol, melatonin and epoprostenol)aimed to reduce ischemia-reperfusion injury during liver transplantation in eligible recipients.
This unicentric, investigator-driven, open-label randomized clinical trial with 2 parallel arms was conducted in Belgium from September 2013 through February 2018, with 1-year follow-up. Adults wait-listed for a first solitary full-size liver transplant were screened for eligibility. Exclusion criteria were acute liver failure, kidney failure, contraindication to treatment, participation in another trial, refusal, technical issues, and death while awaiting transplant. Included patients were enrolled and randomized at the time of liver offer. Data were analyzed from May 20, 2019, to May 27, 2020. Participants were randomized to a combined drug approach with standard of care (static cold storage) or standard of care only (control group). In the combined drug approach group, following static cold preservation, donor livers were infused with epoprostenol (ex situ, portal vein); recipients were given oral α-tocopherol and melatonin prior to anesthesia and intravenous antithrombin III, infliximab, apotransferrin, recombinant erythropoietin-β, C1-inhibitor, and glutathione during the anhepatic and reperfusion phase. The primary outcome was the posttransplant peak serum aspartate aminotransferase (AST) level within the first 72 hours. Secondary end points were the frequencies of postreperfusion syndrome, ischemia-reperfusion injury score, early allograft dysfunction, surgical complications, ischemic cholangiopathy, acute kidney injury, acute cellular rejection, and graft and patient survival.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
143
University Hospitals Leuven
Leuven, Belgium
Peak Aspartate Aminotransferase Within First 72h Post Transplant
peak AST is defined as the highest value of serum AST within 72 hours following liver transplantation
Time frame: within 72 hours following liver transplantation
Graft Loss
graft loss at 3 and 12 months after liver transplantation
Time frame: 3 and 12 months after liver transplantation
Recipient Death
recipient death at 3 and 12 months after liver transplantation
Time frame: 3 and 12 months after liver transplantation
Early Graft Dysfunction
early graft dysfunction as defined by Olthoff
Time frame: within first 7 days
Number of Participants Developing Biliary Strictures
Biliary strictures are the narrowing of the intrahepatic or extrahepatic biliary ductal system. Here we report the number of participants developing biliary strictures within 12 months post transplantation by MRCP (magnetic resonance cholangiopancreatography)
Time frame: within 12 months post transplantation
Ischemia Reperfusion Injury Score
Ischemia Reperfusion Injury score 1h post reperfusion by using the Suzuki score and Monbaliu et al. The score ranges from 0 (no injury) to 4 (severe injury).
Time frame: One hour post reperfusion
Graft Rejection
a liver biopsy will be taken after transplantation and in case of clinical suspicion of acute rejection
Time frame: till 1 year after transplantation
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Patients With at Least 1 Severe Surgical Complications
The ranking of surgical complications will be done by using Clavien-Dindo classification Grade I Any deviation from the normal post-operative course not requiring surgical, endoscopic or radiological intervention. This includes the need for certain drugs (e.g. antiemetics, antipyretics, analgesics, diuretics and electrolytes), treatment with physiotherapy and wound infections that are opened at the bedside Grade II Complications requiring drug treatments other than those allowed for Grade I complications; this includes blood transfusion and total parenteral nutrition (TPN) Grade III Complications requiring surgical, endoscopic or radiological intervention Grade IV Life-threatening complications; this includes CNS complications (e.g. brain haemorrhage, ischaemic stroke, subarachnoid haemorrhage) which require intensive care, but excludes transient ischaemic attacks (TIAs) Grade V Death of the patient A severe surgical complication is defined as Grade III or higher.
Time frame: within 1 year after liver transplantation
Non-anastomotic Biliary Stricture
Non-anastomotic biliary stricture at 1 year
Time frame: 1 year
Acute Kidney Injury Score
An acute kidney injury score of 1 indicates risk; 2, injury; and 3, failure. According to RIFLE (Risk, Injury, Failure, Loss of kidney function, and End-stage kidney disease) Minimum score is 0 meaning there is no injury, maximum score is 3 meaning failure of the organ.
Time frame: 48h
Post-Reperfusion Syndrome
Post-reperfusion syndrome defined as a 30% decrease of mean systemic blood pressure for more than 1 minute during the first 5 minutes following graft reperfusion
Time frame: first 5 minutes following graft reperfusion