Induction Therapy Study in Live Donor Kidney Transplant Recipients With a Positive Crossmatch

December 19, 2017 updated by: Johns Hopkins University

Open Label Randomized Study of Thymoglobulin Versus Daclizumab Induction Therapies for the Reduction of Acute Rejection in Live Donor Kidney Transplant Recipients With a Positive Crossmatch

The purpose of this study is to determine whether the anti-T cell antibody, Thymoglobulin is a more effective induction medication than the anti-IL-2R inhibitor daclizumab, in kidney transplant recipients who have a positive crossmatch with their live donor.

Study Overview

Detailed Description

Kidney transplantation is widely recognized as the optimal therapy for the management of end-stage renal disease. Presently, the deceased donor kidney waiting list has expanded disproportionately with the number of transplant procedures that are performed in the United States. To further compound this problem, as many as 1/3 of the patients on this list are highly sensitized against a broad range of potential donors.

In order to address this problem, we developed an antibody depletion protocol that permits transplantation in patients who have a positive crossmatch with their live donor. The protocol consists of standard immunosuppressant therapy, plasmapheresis, and intravenous immunoglobulin infusion. We have successfully performed transplantation in over 100 such patients with low complication rates.

Because these patients have been exposed to their donor's human leukocyte antigen (HLA) they are at high risk for both acute cellular and acute antibody-mediated rejection. This intent of this prospective, randomized, open-label trial is to determine whether induction therapy (i.e. therapy given at the time of transplantation for prophylaxis) with Thymoglobulin is associated with a lower 6-month incidence of acute cellular and antibody-mediated rejection than with our standard therapy, daclizumab.

Study Type

Interventional

Enrollment (Actual)

56

Phase

  • Phase 3

Contacts and Locations

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

Study Locations

    • Maryland
      • Baltimore, Maryland, United States, 21205
        • The Johns Hopkins University, School of Medicine

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:

  • Adult (18 years or older)
  • End-stage renal disease
  • Identified to have positive lymphocytotoxic crossmatch or flow cytometric crossmatch with live donor

Exclusion Criteria:

  • Deceased donor recipients
  • Pregnancy
  • Active infection
  • History of cancer within the past two years (with the exception of non-melanomatous skin cancer)
  • History of heparin induced thrombocytopenia
  • Medical contraindications to transplant procedure

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Thymoglobulin
Thymoglobulin was administered as 1.5 mg/kg prior to reperfusion followed by 6 post-operative doses on days 1 through 6.
Following each plasmapheresis session, 100 mg/kg of Cytogam (CMVIg) (Cytogam, CSL Behring, King of Prussia, PA) was administered
2 gm/day. Standard of care
To achieve serum level of 8-10 ng/ml.
100 mg intra-operatively, and 25 mg every 6h post-operatively for six doses
Taper over three months to 5 mg daily
Following each plasmapheresis session, 100 mg/kg of Cytogam (CMVIg) (Cytogam, CSL Behring, King of Prussia, PA) was administered
Experimental: Daclizumab
Daclizumab was administered as 2 mg/kg prior to reperfusion followed by 1 mg/kg every other week for 8 weeks post-operatively (4 post-operative doses).
Following each plasmapheresis session, 100 mg/kg of Cytogam (CMVIg) (Cytogam, CSL Behring, King of Prussia, PA) was administered
2 gm/day. Standard of care
To achieve serum level of 8-10 ng/ml.
100 mg intra-operatively, and 25 mg every 6h post-operatively for six doses
Taper over three months to 5 mg daily
Following each plasmapheresis session, 100 mg/kg of Cytogam (CMVIg) (Cytogam, CSL Behring, King of Prussia, PA) was administered

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
6-month Acute Cellular-mediated Rejection Rate (CMR)
Time Frame: Up to 6 months
Per 2007 international Banff Classification Criteria, CMR 1A was diagnosed on biopsies displaying significant interstitial infiltration (>25% of parenchyma affected, i2 or i3) and foci of moderate tubulitis (t2). CMR IB was diagnosed in cases with significant interstitial infiltration (>25% of parenchyma affected, i2 or i3) and foci of severe tubulitis (t3). CMR IIA were cases with mild-to-moderate intimal arteritis (v1), while CMR IIB were those with severe intimal arteritis comprising >25% of the luminal area (v2). CMR III were those cases with transmural arteritis and/or arterial fibrinoid change and necrosis of medial smooth muscle cells with accompanying lymphocytic inflammation (v3).
Up to 6 months
6-month Acute Antibody-mediated Rejection Rate (AMR)
Time Frame: Up to 6 months
A diagnosis of AMR was based on the 2013 international Banff Classification Criteria and is defined as the presence of circulating donor-specific antibody (DSA) and either: 1) peritubular capillary staining of C4d and at least one of the following: peritubular capillaritis (ptc) score>0, glomerulitis (g) score>0, acute thrombotic microangiopathy (TMA) in the absence of any other cause, or other features consistent with AMR (endothelial injury, fibrin thrombi, microinfarctions, interstitial hemorrhage), or 2) absence of capillary staining of C4d and the presence of ptc>0 and g>0 or ptc>0 or g>0 and acute TMA, in the absence of any other cause of TMA.
Up to 6 months
6-month Cumulative Rejection Incidence (Either CMR, AMR or Both)
Time Frame: Up to 6 months
Biopsy shows evidence of either AMR or CMR or evidence both.
Up to 6 months

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Robert A Montgomery, M.D., Ph.D., Johns Hopkins University , SOM
  • Study Director: Christopher E Simpkins, M.D., Johns Hopkins University, SOM

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.

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)

January 1, 2007

Primary Completion (Actual)

June 1, 2010

Study Completion (Actual)

June 1, 2010

Study Registration Dates

First Submitted

January 10, 2006

First Submitted That Met QC Criteria

January 10, 2006

First Posted (Estimate)

January 12, 2006

Study Record Updates

Last Update Posted (Actual)

January 18, 2018

Last Update Submitted That Met QC Criteria

December 19, 2017

Last Verified

December 1, 2017

More Information

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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