CNI-free de Novo Protocol in Patients Undergoing Liver Transplantation With Renal Impairment

Summary

Background:

Patients undergoing liver transplantation with preexisting renal dysfunction are prone to further renal impairment with the early postoperative use of Calcineurin-inhibitors. However, there is only little scientific evidence for the safety and efficacy of de novo CNI free regimens in patients with impaired renal function undergoing liver transplantation. The objective of the study is to evaluate a de novo calcineurin-inhibitor-free immunosuppressive regimen based on induction therapy with anti-CD25 monoclonal anti- body, mycophenolate mofetil (MMF/MPA), and mTOR-inhibition to determine its safety and to investigate the preliminary efficacy in patients with impaired renal function at the time of liver transplantation. Methods/Design: Patients older than 18 years with renal impairment at the time of liver transplantation due to hepatorenal syndrome, eGFR \< 50 ml/min and/or serum creatinine levels \> 1.5 mg/dL will be included. Patients will receive a combination therapy with antiCD25-monoclonal antibodies, MMF, steroids and delayed sirolimus (day 10) and will be evaluated with regards to the incidence of steroid resistant acute rejection within the first 30 days after liver transplantation as the primary endpoint. The study is designed as prospective two-step trial requiring a maximum of 29 patients. In the first step 9 patients will be included. If 8 or more patients show no signs of biopsy proven steroid resistant rejection, additional 20 patients will be included. If in the second step a total of 27 or more patients reach the primary end-point the regimen is regarded to be safe and efficient. The follow up period will be one year after transplantation. The aim is to obtain safety and efficacy data for this new and innovative therapy regimen that might be the basis for a large prospective randomized multicenter trial in the future.

Conditions

• End Stage Liver Disease
• Impaired Renal Function

Interventions

DRUG

anti-CD 25 mAb, Sirolimus, MMF

Prior to reperfusion: 500 mg Prednisolone After OLT: anti-CD25-mAB (basiliximab 20 mg on day 0 and day 4 after the procedure) MMF 2 g/d, 2 applications per day i.v., later conversion to oral intake) Earliest, on day 10 after LT Sirolimus: 5 mg/d, thereafter a dosage of 2 mg/d (4 and 8 ng/mL) Steroids: 1mg/kg BW (tapered every 2 days for 5 mg to a dosage of 20 mg, 2.5 mg every two days to 7.5 mg, reduced to 5 mg and 2.5 mg for 1 week each and eliminated thereafter).

Sponsors & Collaborators

• University of Regensburg

  lead OTHER

Principal Investigators

• Andreas A Schnitzbauer, MD · Regensburg University Medical Center, Department of Surgery

• Hans J Schlitt, MD · Regensburg University Medical Center, Department of Surgery

• Marcus N Scherer, MD · Regensburg University Medical Center, Department of Surgery

Study Design

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2008-12-31

Primary Completion

2011-07-31

Completion

2012-08-31

Countries

• Germany

Study Locations