Treatment of Chronic Active Antibody Mediated Rejection After Kidney Transplantation by Double-Filtration PlasmaPheresis or Plasma Exchange (DFPP)

March 26, 2020 updated by: University Hospital, Grenoble

Treatment of Chronic Active Antibody Mediated Rejection After Kidney Transplantation by Double-Filtration PlasmaPheresis (DFPP) or Plasma Exchange (PE).

In France around 90,000 cases of end-stage chronic kidney disease patients treated either by dialysis (60%) or renal transplantation (just over 40%).

In terms of patient survival and quality of life and also economic reasons, the goal in France is to increase renal transplantation instead of patients on dialysis.

After renal transplant, two main causes of the graft loss after the first years are death of patient with functioning graft, and chronic AntiBody Mediated Rejection (ABMR).

Double Filtration PlasmaPheresis (DFPP) has never been evaluated for this indication.

DFPP makes it possible to treat larger volumes of plasma than plasma exchange, and essentially eliminates higher molecular weights molecules including immunoglobulins comprising DSA (donor-specific alloantibody) but also the C1q involved in the lesions of(ABMR). It is postulated that it will be more effective in treating ABMR than usual plasma exchanges.

A chronic ABMR is the result of the appearance de novo production of anti-Human Leucocyte Antigen antibodies (HLA) against one or more graft antigens (DSA: donor-specific alloantibody).These DSAs will lead to accelerated arteriosclerosis in the graft vessels, which will result in rapidly progressive renal failure, usually associated with a high rate of proteinuria.

Numerous studies have shown that up to 20% of renal transplant patients develop DSA within 5 years of renal transplantation.

Today, no treatment has been shown to be effective in the case of chronic ABMR: the basis of treatment is the reduction/elimination of DSA ( by apheresis for example) and the prevention of its re-synthesis B lymphocytes/plasma cells of the patient (with rituximab for example).

The investigators of this study propose in the context of the active ABMR demonstrated by renal biopsy to evaluate in combination with rituximab, a new apheresis technique double Plasma filtration (DFPP) instead of plasma Exchange.

Study Overview

Detailed Description

Each year in the Renal Nephrology and Transplantation Department of Grenoble Hospital treat about twenty renal transplant patients with chronic active antibody rejection. Some patients are diagnosed at a very advanced stage and will not be treated because the expected benefit is tenuous (exclusion criteria).

For both groups, patients will have one session per day, 4 consecutive days then three days without, then one session per day for 4 consecutive days. That's 11 days of treatment in all. The fourth and eighth sessions will be followed by an infusion of Rituximab 375 mg / m2.

At the beginning and at the end of each session, patients will have a blood test to measure the parameters and collection of study biological samples.

DFPP sessions are performed by double filtration technique. A DFPP session lasts about 2 hours for 3.5 L of processed plasma. During the session it is necessary to compensate for 20 grams of albumin.

The plasmapheresis sessions are performed by centrifugation technique. It takes about 20 minutes to prepare the apheresis monitor and circuit. A plasmapheresis session lasts approximately 1h30 for 3.5 L of plasma exchange (replacement with albumin), 2 h for an exchange where the removed plasma is replaced by fresh frozen plasma.

The blood flow rate for plasmapheresis is 80 ml / min, or 50 ml / min a plasma flow rate.

The study includes five follow-up visits following the treatment sessions. A visit 45 days after the start of apheresis sessions, a visit at 3 months and a visit every 3 months for one year.

Study Type

Interventional

Enrollment (Anticipated)

16

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • La Tronche, France, 38700
        • Recruiting
        • Grenoble Alpes University Hospital
        • Contact:
        • Contact:
        • Principal Investigator:
          • lionel Rostaing, PHD
        • Sub-Investigator:
          • Paolo Malvezzi, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

To be enrolled into the study, subjects must meet all of the following inclusion criteria

  • Kidney transplantation for more than 6 months
  • The presence of one or more DSAs with MFI greater than 1000
  • Renal Graft dysfunction with renal biopsy of humoral rejection or chronic active antibody mediated rejection lesions based on the 2017 banff score ( with/without C4d)
  • Written informed consent in patients

Exclusion Criteria:

Subjects must not be enrolled into the study if they meet any of the following exclusion criteria:

  • Kidney transplant for less than 6 months.
  • MFI<1000
  • Hemoglobin level<110 g/l
  • No vascular access patients
  • Pre terminal histological lesions of chronic ABMR
  • Subject in exclusion period of another study
  • Pregnant women, parturient or breastfeeding
  • Subject under administrative or judicial control

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: Plasma Exchange Group
Patients receiving Exchange plasma as a treatment of chronic antibody mediated rejection.

Patient receiving sessions of Plasma exchange as treatment of chronic antibody mediated rejection.

The plasma exchange uses a single filter to remove whole plasma and the volume is replaced with a matched volume of blood products +/- saline.) 8 sessions plasma exchange.Patients will have one session per day, 4 consecutive days and then three days without, then one session per day for 4 consecutive days. That's 11 days of treatment at all. The fourth and eighth sessions will be followed by an infusion of Rituximab 375 mg / m2.

At the beginning and at the end of each session, the patients will have a blood test to measure the parameters of the routine care and the analyzes, collection of biological samples planned for the study.

EXPERIMENTAL: Double filtration PlasmaPheresis Group
Patients receiving double filtration plasmapheresis as a treatment of chronic antibody mediated rejection.

Patient receiving DFPP as treatment of chronic antibody mediated rejection. 8 sessions

A Double filtration plasmapheresis (DFPP) is a variation of plasma exchange. The circuit contains two plasma filters : the first is a standard plasma filter and the second is a high molecular weight filter that primarily removes immunoglobulins. The depleted plasma is returned to the blood circuit and then to the patient.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
show that renal transplant patients with chronic antibody mediated rejection treated with rituximab and DFPP (instead of plasmapheresis +rituximab) had a greater decrease of DSA at 45 days after the end of treatment.
Time Frame: DSA at the first session of the treatment Day1 - At Day 45 post-treatment.
Measurement of Delta DSA ( evaluated MFI) between Day 45 post-treatment and D0 treatment for every patient in each group
DSA at the first session of the treatment Day1 - At Day 45 post-treatment.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evaluate of the coagulation parameters (factors II, V, VII, VIII, IX, X, XI, XII, XIII, Von Willebrand and fibrinogen) before/after each session, for each technique (safety)
Time Frame: At day1,day4, day8, day 11, day 45, month 6, month12
Measurement before/after ratio of factors II,V,VII,VIII,IX,X,XI,XII,XIII,Von Willebrand and fibrinogen in each session for each technique
At day1,day4, day8, day 11, day 45, month 6, month12
Evaluate of the serum albumin before/after in each session for each technique (safety)
Time Frame: At day1,day4, day8, day 11, day 45,month 3, month 6, month 9, month12
Measurement of before/after serum albumin ratio each session and for each technique
At day1,day4, day8, day 11, day 45,month 3, month 6, month 9, month12
Evaluate the complement components C3,C4,C5,C5-9, mannose- binding lectin (MBL) Ficoline3, Properdin and C1q before and after each session for each technique (efficacy)
Time Frame: At day1,day4, day8, day 11, day 45, month 6, month12
Measurement of ratio before/after complement components ((C3,C4,C5,C5-9, MBL, Ficoline3, Properdin complement and C1q) each session for each technique
At day1,day4, day8, day 11, day 45, month 6, month12
Evaluate the immunoglobulin levels(Immunoglobulin G(IgG) , immunoglobulin A: (IgA), immunoglobulin M(IgM)) before and after each session for each technique
Time Frame: At day1,day4, day8, day 11, day 45, month 6, month12
Measurement of before/after ratio of serum IgG, IgA, IgM in each session for each technique (efficacy)
At day1,day4, day8, day 11, day 45, month 6, month12
Evaluate the DSA before the first and after the last session of apheresis in each technique
Time Frame: At day1,day 11, day 45, month 6, month12
Measurement DSA before the first session and after the last session of apheresis in each technique
At day1,day 11, day 45, month 6, month12
Evaluate the following parameters: creatinin, albumin in urine,DSA, levels of MFI, Tacrolimus level.
Time Frame: at Day 0, at day 45, at month 3, at month 9, at month 12
Measurement serum creatinin level , albumin in urine, creatinin,serum tacrolimus level, DSA, MFI level.
at Day 0, at day 45, at month 3, at month 9, at month 12
Evaluate renal histological lesions of the chronic antibody mediated rejection at Day45 post-treatment and at Month12
Time Frame: Biopsy at day45 post treatment. At month 12 post treatment
pathological analysis of renal biopsy at Day45 and at month12
Biopsy at day45 post treatment. At month 12 post treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Lionel Rostaing, PH.MD, Nephrology Dialysis Transplantation/ CHU GRENOBLE

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

July 1, 2018

Primary Completion (ACTUAL)

March 1, 2020

Study Completion (ANTICIPATED)

March 1, 2021

Study Registration Dates

First Submitted

February 2, 2018

First Submitted That Met QC Criteria

February 9, 2018

First Posted (ACTUAL)

February 19, 2018

Study Record Updates

Last Update Posted (ACTUAL)

March 27, 2020

Last Update Submitted That Met QC Criteria

March 26, 2020

Last Verified

March 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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