Life From Life

"Our mission is to help more women and their families realize their dreams of becoming parents."

Drs. Paige Porrett and Kathleen O'Neill, Lead Investigators, UNTIL Trial

Photo of Uterus Transplant Principal Investigators Kathleen O'Neill, MD, MTR and Paige Porrett, MD, PhD

Penn Medicine's Uterus Transplantation for Uterine Factor Infertility (UNTIL) trial is the first of its kind in the Northeastern United States. The trial began in 2017 as a joint effort between the Penn Transplant Institute and the Department of Obstetrics and Gynecology.

Uterus transplantation provides a promising potential treatment for women with Uterine Factor Infertility (UFI) - an irreversible form of female infertility. A woman with UFI cannot carry a pregnancy. She is either born without a uterus, had her uterus removed, or has a nonfunctioning uterus. A uterus transplant has the potential to give women with UFI an opportunity to carry and deliver a child.

Penn Medicine is the only center on the East Coast that is currently offering uterus transplantation to women with UFI, and it is one of only three centers in the United States. The strength of Penn's research program and exceptional quality of care, particularly in transplant and women's health, makes us uniquely positioned to be a leading clinical research program for uterus transplants in the United States.

The Uterus Transplant Process

Uterus transplantation involves both surgical and medical components. Participants in the trial will move through three phases.

Info graphic showing the process of a uterine transplant clinical trial

A New Path to Parenthood: The first of its kind clinical trial in the Northeast, Penn Medicine's multi-year Uterine Factor Infertility (UNTIL) trial will provide uterus transplants to women with Uterine Factor Infertility

Pre-Uterus Transplant

After screening and enrollment, participants will undergo in vitro fertilization (IVF), during which their eggs are harvested and fertilized to create embryos that are then cryopreserved for transfer into the uterus following transplantation.

Uterus Transplant

Participants will go through a careful medical evaluation before they are listed for transplant with the United Network for Organ Sharing (UNOS).

The transplanted uterus can come from a deceased donor or a living donor. A living uterus donor gives her uterus for the purpose of transplantation to a female recipient. A deceased uterus donor is a female that is willing to donate her uterus after death.

Post-Uterus Transplant

After transplant surgery, participants will begin a regimen of immunosuppressant medications. These medications prevent immune rejection of the uterus and are identical to those taken by recipients of other types of organ transplants.

Once the participant heals, a single embryo will be placed into the uterus. The transfer will occur approximately 6 to 12 months after transplant, depending on the medical stability of the participant and the health of the uterus transplant.

If the participant becomes pregnant, she will be monitored closely by a team of obstetricians who specialize in high-risk pregnancies. The baby will be delivered via cesarean section at approximately 37 to 39 weeks (or earlier if needed for the health of the mother and/or baby).

Participants may have up to two children during the trial. Then surgeons will remove the uterus (a hysterectomy) and stop the immunosuppression.

The average length of participation in the trial for any given individual is expected to be approximately five years.

In This Section

FAQs About Uterus Transplant

Get answers to frequently asked questions about the uterus transplant clinical trial at Penn Medicine.

Uterus Transplant Team

The Uterus Transplant team includes experts in Transplant, Obstetrics, Fertility and more, working together to help women with UFI carry and deliver a baby.

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