Bone Marrow Cell Engraftment of the Uterus and Genetic Studies of Reproductive Functioning

Background:

- Some transplant recipients have been found to have cells in their uterus that come from the donor. Researchers want to study uterine tissue from three different groups of women: (1) healthy volunteers, (2) people who have had a stem cell transplant, and (3) people with rare diseases or conditions that affect reproduction. These samples will help researchers learn more about the way stem cells work in the reproductive tract.

Objectives:

- To collect cells from the uterus to study how stem cells work in the reproductive tract.

Eligibility:

- Women at least 18 years of age.

Design:

  • Participants will be screened with a physical exam and medical history. They will also have blood and urine tests.
  • Participants will have an endometrial biopsy to collect cells for study. The biopsy visit will take 1 to 2 hours.

Study Overview

Status

Completed

Conditions

Detailed Description

Transplantation with hematopoietic cells has been used for a wide variety of blood disorders, but also for diseases like solid organ cancers. Interestingly, women who have had bone marrow transplants have been found to have donor tissue in their endometrium, which raises the possibility of cellular therapies using bone marrow derived cells for gynecologic indications. Donor engraftment does not appear to occur when transplantations were performed with stem cells collected from peripheral blood of the donor. Therefore, the subtype of cells from the bone marrow responsible for engraftment is not yet known, nor is the ideal transplantation regimen known.

The immediate aim of this tissue procurement protocol is to obtain endometrial (uterine) stem cells from many human volunteers in order to examine the biological properties of those cells. We will collect tissue from 3 primary groups of patients: normal controls, patients with rare diseases or reproductive disorders, and patients who have undergone hematopoietic stem cell transplant. Each volunteer will undergo an endometrial biopsy during an office visit. The endometrial tissue will then be studied for a better understanding of their biological properties, growth and differentiation. One specific area of interest is to study how hematopoietic transplantation impacts endometrial cell function. These endometrial cells will be analyzed in-depth in the laboratory to determine if they came from the donor or recipient, and if so, which specific populations of cells. Hematologic pre-transplant conditioning information will be correlated with these research studies to identify factors that may assist with the understanding of adult endometrial stem cell biology.

Study Type

Observational

Enrollment (Actual)

79

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

    • Maryland
      • Bethesda, Maryland, United States, 20892
        • National Institutes of Health Clinical Center, 9000 Rockville Pike

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 and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

  • INCLUSION CRITERIA:

Subject is able to give consent/assent to participate in the protocol.

Listed below are acceptable medical conditions for inclusion in this protocol:

  • Age greater than or equal to 18 years old
  • Female gender
  • Presence of a uterus
  • Fall into one of the following categories:
  • Healthy volunteers
  • Hematologic patients:
  • Whole bone marrow transplant recipients
  • Peripheral blood stem cell transplant recipients
  • Mesenchymal stem cell transplant recipients
  • Bone marrow or stem cell donors
  • Fully ablative transplant recipients
  • Nonmyeloablative transplant recipients
  • Cord blood transplant recipients

Rare, interesting, or unique reproductive phenotypes that may provide insight to endometrial function in health and disease:

  • Asherman s syndrome
  • Endometriosis
  • Abnormal uterine bleeding
  • Recurrent pregnancy loss
  • Infertility
  • Implantation failure
  • Reproductive disorders

EXCLUSION CRITERIA:

  • Unable to comprehend the investigational nature of the protocol participation.
  • Positive pregnancy test.
  • Anticoagulation or known coagulopathy.
  • Active gonorrhea or Chlamydia infections or pelvic inflammatory disease within the last 3 months.
  • Previous hysterectomy or endometrial ablation procedure.
  • Thrombocytopenia (<50,000).
  • Uterine or cervical cancer.
  • Cervical stenosis.

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
To study if endometiral stem cells are different in normal and disease states.

Secondary Outcome Measures

Outcome Measure
To study if the type of hematopoietic transplantation regimen affects uterine engraftment of donor stem cells.

Collaborators and Investigators

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

Sponsor

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the 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

October 31, 2011

Study Completion

September 21, 2017

Study Registration Dates

First Submitted

November 8, 2011

First Submitted That Met QC Criteria

November 8, 2011

First Posted (ESTIMATE)

November 10, 2011

Study Record Updates

Last Update Posted (ACTUAL)

December 17, 2019

Last Update Submitted That Met QC Criteria

December 14, 2019

Last Verified

September 21, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 120016
  • 12-CH-0016

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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