Withdrawal of Immunosuppression in Recipients of Face and Extremity Transplants

January 25, 2021 updated by: Bodhan Pomahac, Brigham and Women's Hospital

Biomarker-guided Withdrawal of Immunosuppression in Recipients of Vascularized Composite Tissue Transplants

Many patients suffer from devastating injuries to vascularized composite tissues. Vascularized composite tissues are blocs of functional tissue that can contain multiple tissue types such as bone, muscle, nerves, blood vessels, tendons, ligaments, and others. Examples of patients with severe vascularized composite tissue defects include limb amputees, patients with third-degree burns to the face or extremities, soldiers with improvised-explosive-device blast injuries to the face, and others. These patients cannot be helped satisfactorily with conventional reconstructive surgery; however, recently vascularized composite allotransplantation (VCA) such as transplantation of faces and limbs became available to this patients. Unfortunately, at this juncture, patients who receive VCA must submit to life-long regime of immunosuppressant drugs with serious side effects such as infection, renal toxicity and cancer. Immune tolerance is the absence of a destructive immune response from the recipient's body to the transplant, while otherwise maintaining sufficient immune function to fight infections and other threats. Transplant recipients with immune tolerance do not need to take immunosuppression drugs. The investigators believe that they can achieve immune tolerance in recipients of face and limb transplants.

Study Overview

Status

Completed

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

1

Phase

  • Phase 1

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

    • Massachusetts
      • Boston, Massachusetts, United States, 02115
        • Brigham and Women's Hospital

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 to 65 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • adults who have received VCA transplants at Brigham and Women's Hospital
  • no less than 3 months elapsed since VCA transplant,
  • on steroid-free immune dual immunosuppression with tacrolimus (6-8 ng/ml trough levels) and mycophenolate mofetil,
  • no current concerns of rejection

Exclusion Criteria:

  • recent (<3 months) episodes of rejection,
  • active bacterial or viral infection,
  • malignancy,
  • non-healing wounds
  • pregnancy

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: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Interleukin 2
Subjects who receive a tolerogenic drug protocol
Other Names:
  • Aldesleukin, proleukin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Complete cessation of immune suppression without evidence of rejection for more than 6 months.
Time Frame: 6 -24 months
6 -24 months

Collaborators and Investigators

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

March 1, 2014

Primary Completion (ACTUAL)

December 20, 2019

Study Completion (ACTUAL)

March 10, 2020

Study Registration Dates

First Submitted

May 10, 2013

First Submitted That Met QC Criteria

May 13, 2013

First Posted (ESTIMATE)

May 14, 2013

Study Record Updates

Last Update Posted (ACTUAL)

January 27, 2021

Last Update Submitted That Met QC Criteria

January 25, 2021

Last Verified

January 1, 2021

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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