RECRUITING

Human Penile Allotransplantation

Description

Injuries to the genitalia are of concern to the military with emphasis placed on the surgical reconstruction and psychological health of these Wounded Warriors. However, despite significant surgical advances in microvascular surgery and autologous free tissue transfer, conventional reconstructions cannot truly replace the complicated structures and functions of the penis including the urethra, erogenous sensation, and erectile corporal bodies. Conventional reconstruction poses several challenges: patients may not have sufficient donor tissue due to other injuries or previous surgery; multiple operations are often needed to restore the neophallus; the final reconstruction only approximates the penis' native form; recreating the urethra is challenging and the new urethra is prone to stricture and fistula formation; the erectile function necessary for sexual intercourse is often lacking; and insufficient protective sensation can lead to penile implant extrusion, infection, subsequent explantation or loss of the reconstruction. The investigators propose this clinical trial to determine functional outcomes and quality of life for Wounded Warriors and civilians who choose to undergo penile allotransplantation. The investigators will combine extensive experience performing total penile reconstruction in a large population affected by congenital, traumatic, and therapeutically extirpated Genitourinary deformities and expertise in reconstructive transplantation using an immunomodulatory protocol to for this study. The investigators anticipate penile transplantation can potentially replace "like with like," restoring the appearance, anatomy, and function of the recipient in a manner far superior to autologous reconstruction. This project will establish the ability to perform penile allotransplantation using an immunomodulatory protocol and will compare outcomes with conventional phalloplasty patient results. Study Design: This is a non-randomized subject self-controlled clinical trial to implement a cell-based immunomodulatory protocol for penile allotransplantation. An intermediate deliverable is achieving allograft survival and functional return with reduced dosing/frequency of maintenance immunosuppression on steroid-free monotherapy (tacrolimus) immunosuppression. The long-term deliverable and goal is to demonstrate superior outcomes when compared to satisfaction and QOL in conventional phalloplasty patients 12-60 months post-transplant.

Study Overview

Study Details

Study overview

Injuries to the genitalia are of concern to the military with emphasis placed on the surgical reconstruction and psychological health of these Wounded Warriors. However, despite significant surgical advances in microvascular surgery and autologous free tissue transfer, conventional reconstructions cannot truly replace the complicated structures and functions of the penis including the urethra, erogenous sensation, and erectile corporal bodies. Conventional reconstruction poses several challenges: patients may not have sufficient donor tissue due to other injuries or previous surgery; multiple operations are often needed to restore the neophallus; the final reconstruction only approximates the penis' native form; recreating the urethra is challenging and the new urethra is prone to stricture and fistula formation; the erectile function necessary for sexual intercourse is often lacking; and insufficient protective sensation can lead to penile implant extrusion, infection, subsequent explantation or loss of the reconstruction. The investigators propose this clinical trial to determine functional outcomes and quality of life for Wounded Warriors and civilians who choose to undergo penile allotransplantation. The investigators will combine extensive experience performing total penile reconstruction in a large population affected by congenital, traumatic, and therapeutically extirpated Genitourinary deformities and expertise in reconstructive transplantation using an immunomodulatory protocol to for this study. The investigators anticipate penile transplantation can potentially replace "like with like," restoring the appearance, anatomy, and function of the recipient in a manner far superior to autologous reconstruction. This project will establish the ability to perform penile allotransplantation using an immunomodulatory protocol and will compare outcomes with conventional phalloplasty patient results. Study Design: This is a non-randomized subject self-controlled clinical trial to implement a cell-based immunomodulatory protocol for penile allotransplantation. An intermediate deliverable is achieving allograft survival and functional return with reduced dosing/frequency of maintenance immunosuppression on steroid-free monotherapy (tacrolimus) immunosuppression. The long-term deliverable and goal is to demonstrate superior outcomes when compared to satisfaction and QOL in conventional phalloplasty patients 12-60 months post-transplant.

Human Penile Allotransplantation

Human Penile Allotransplantation

Condition
Amputation
Intervention / Treatment

-

Contacts and Locations

Baltimore

Johns Hopkins University School of Medicine, Baltimore, Maryland, United States, 21287

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.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Males aged 16 - 65 years.
  • * Brain dead meeting the criteria for Determination of Death.
  • * Family consent for penile graft donation.
  • * Stable donor (i.e., does not require excessive vasopressors to maintain blood pressure).
  • * Same blood type as recipient.
  • * Negative lymphocytotoxic crossmatch.
  • * Accurately matched for skin tone
  • * Untreated sepsis.
  • * HIV (active or seropositive).
  • * Active tuberculosis.
  • * Active Hepatitis B infection.
  • * Hepatitis C.
  • * Viral encephalitis.
  • * Toxoplasmosis.
  • * Malignancy (within past 5 years).
  • * Current/recent (within 3 months of donation/screening consent) IV drug abuse.
  • * Paralysis of ischemic or traumatic origin.
  • * Inherited peripheral neuropathy.
  • * Infectious, post infectious, or inflammatory (axonal or demyelinating) neuropathy.
  • * Toxic neuropathy (i.e. heavy metal poisoning, drug toxicity, industrial agent exposure).
  • * Mixed connective tissue disease.
  • * Severe deforming rheumatoid or osteoarthritis in the limb.

Ages Eligible for Study

18 Years to 69 Years

Sexes Eligible for Study

MALE

Accepts Healthy Volunteers

No

Collaborators and Investigators

Johns Hopkins University,

Richard Redett, MD, PRINCIPAL_INVESTIGATOR, Johns Hopkins University

Study Record Dates

2039-06