Actively Recruiting
Human Penile Allotransplantation
Led by Johns Hopkins University · Updated on 2025-07-07
60
Participants Needed
1
Research Sites
1304 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
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.
CONDITIONS
Official Title
Human Penile Allotransplantation
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Male, aged 18 to 69 years
- Lost 75% or more of the penis due to injury, cancer, or congenital defect
- Penectomy due to penile cancer
- Penile cancer survivors over 5 years
- Micropenis with congenital or birth defects causing ambiguous male genitalia
- Completed a clinic visit with a study surgeon to discuss all reconstruction options
- Signed informed consent forms
- No medical conditions affecting surgery or immunosuppression risks
- No alcohol or drug abuse problems
- Cancer-free for past 5 years
- HIV negative at transplant
- Negative crossmatch with donor
- Agree to skin biopsy and bone marrow infusion as part of treatment
- U.S. citizen or equivalent
- Willing to comply with treatment protocol
You will not qualify if you...
- Active untreated sepsis
- HIV positive or active infection
- Active tuberculosis infection
- Active Hepatitis B or C infection
- Viral encephalitis
- Toxoplasmosis infection
- Cancer within past 5 years
- Recent intravenous drug abuse (within 3 months)
- Paralysis from ischemia or trauma
- Inherited peripheral neuropathy
- Infectious or inflammatory neuropathy
- Toxic neuropathy from poisoning or drug exposure
- Mixed connective tissue disease
- Severe rheumatoid or osteoarthritis deforming limbs
- Donor with active herpes simplex virus-2 infection
- Donor tattoos: non-professional within 6 months or identifiable tattoo
- Recipient conditions risking immunosuppression safety
- High panel-reactive HLA antibodies (50% or more)
- Blood disorders affecting surgery or recovery
- Conditions affecting nerve regeneration and function
- Psychologically or psychiatrically unsuitable patients
AI-Screening
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Trial Site Locations
Total: 1 location
1
Johns Hopkins University School of Medicine
Baltimore, Maryland, United States, 21287
Actively Recruiting
Research Team
J
Jane Littleton, CRNP, MSN
CONTACT
T
TBD TBD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NA
Model
SINGLE_GROUP
Primary Purpose
TREATMENT
Number of Arms
1
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