Clinical Trial Details
— Status: Withdrawn
Administrative data
NCT number |
NCT02409147 |
Other study ID # |
0138-15-FB |
Secondary ID |
|
Status |
Withdrawn |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
January 2016 |
Est. completion date |
July 24, 2018 |
Study information
Verified date |
August 2023 |
Source |
University of Nebraska |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
This study will explore the feasibility of initiating a uterine transplant program at UNMC.
Using the procedural templates established by a successful Swedish team, the investigators
will identify emotionally and socially stable females of reproductive age with intact ovaries
who are unable to gestate a child due to congenital or acquired uterine factor infertility
(UFI). Women will be 21 to 35 years of age upon entry into the protocol, with normal ovarian
reserve and otherwise healthy for pregnancy. After careful screening, participants will
undergo egg harvest, in-vitro fertilization, and embryo cryopreservation using standard
methods. Women who successfully complete in vitro fertilization and cryopreservation of at
least six embryos will be eligible to receive implantation of a deceased donor uterus. After
a period of observation to ensure normal menstrual cycling and graft viability, embryo
implantation will be undertaken. Gestations will be carefully monitored by our high-risk
pregnancy specialists. Medical research interventions include uterine harvest from a deceased
donor, surgical implantation of the organ utilizing standard transplant techniques, careful
post-transplant follow-up including immune suppression therapy tailored to minimize fetal
compromise, and careful management of pregnancy. After childbearing is complete (at most two
gestations), the donor uterus will be removed. In addition, open-ended interviews and written
surveys will be conducted to elicit ethical and psychosocial concerns arising from the
experience of subjects and their families, health care providers, and the wider community.
The investigators intent is to monitor outcomes lifelong for transplant recipients and
live-born infants.
Description:
Uterine transplantation was developed as a surgical/medical procedure to ameliorate the
condition of absolute uterine factor infertility. As a condition, the congenital or acquired
state renders fertile-age women the inability to have a child via conventional birth. It is
estimated that this condition may affect near 1 in 500 women. The alternative, namely
gestational surrogacy or adoption, can be fraught with legal, ethical, or religious issues.
Significant research and progress has been obtained in Europe (namely Sweden) in facilitating
uterine transplantation. Recently, they were able to obtain a successful live childbirth
using a donated uterus from a living relative. Based on significant background research
already performed, the aim of this research study is to expand upon their gains by
successfully establishing a deceased donor uterus transplantation program at UNMC.
Prior to the success of the Swedish team, two other European/Asian medical research groups
have attempted deceased donor uterus transplantation. The first resulted in organ failure
from unclear pathology. The second was a successful transplant, but failed to yield a
childbirth due to multiple miscarriages. In 2004 however, the team from the Sahlgrenska
Institute in Gothenburg instituted a rigorous research undertaking in order to study the
phenomenon and to obtain a childbirth. Using established immunological knowledge, and
practical experience using animal models, the investigators were able over a course of a
decade, to start an active transplant program.
From a medical/obstetrics and gynecology standpoint, potential subjects were screened using a
rigorous physical and psychosocial evaluation. This involved meeting with multiple members of
the research team, in addition to independent monitors familiar with the field and the risks
and benefits of participation. To facilitate success, all women and their partners underwent
investigation to rule out any sterility factors that could have been related to fertility.
Next, egg harvesting and embryo transfer was undertaken according to currently accepted
protocols. Of note, all women who had uterine agenesis had some type of neo-vaginal
recreation in order to facilitate IVF. Finally, donor and recipient HLA matching was done
using standard transplantation methods in order to avoid unacceptable matches.
During surgery, the donor underwent an extensive procedure in order to successfully dissect
out the artery and venous supply of the organ. The vagina was transected caudal to the
fornix, thus allowing a donor specimen which was attached by only the vascular pedicles. (The
process of removing a uterus from a living donor is infinitely more complex than that of a
deceased donor, hence our initial plan at UNMC is to focus on organs derived from the
latter.) Once the organ was removed, it was flushed with preservation solution using standard
transplantation protocols. The recipient surgery was also performed in standard fashion, with
the donor iliac vessels anastomosed to the recipients. The vaginal rim of the graft was
sutured to the recipient's vagina in standard fashion. Routine intra-operative examinations
with Doppler (to assess blood flow) were then performed prior to the termination of the
operation.
Maintenance immunosuppression was given to the recipients using standard accepted protocols
with close monitoring of drug levels. Serial Doppler US were done both during hospitalization
and in follow up to assess uterine viability. Clinical examination from an obstetrician was
performed at pre-determined intervals and biopsies of uterine tissue were taken to assess for
organ viability and to rule out rejection. Those few patients who did have rejection were
treated with standard transplantation protocols with increased steroids only.
Embryo transfer was done at approximately 1 year post transplant, in order to ensure
continued viability and normal menstruation of the organ. Post transfer, hormonal stimulation
was done using standard reproductive endocrinology protocols. Serial monitoring of the fetus
was done at routine intervals through the 9 month gestational period. Finally, a caesarean
section was performed in routine fashion at time of birth.
Our groups rationale at UNMC is to continue to build on the accepted protocols developed by
the Swedish team and apply them to deceased donors. The investigators believe our vast
experience in transplant and obstetrics/gynecology combined with reproductive endocrinology
facilitates undergoing this exciting new medical and surgical therapy.