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NCT Number: NCT05343572

Bone Marrow Derived Stem Cells Mobilization for Treatment of Abnormal Endometrium

This study will assess the use of autologous bone marrow stem cells mobilization using 1,1'-[1,4-phenylenebis-(methylene)]-bis-1,4,8,11-tetraazacyclotetradecane (PLERIXAFOR) as an effective medical therapy for the treatment of Asherman's Syndrome (AS), Atrophic Endometrium (AE) and Recurrent Implantation Failure (RIF).

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Key information

Age range

18 year–40 year

Sex eligibility

Female

Study type

Interventional

Phase

Early Phase 1

Primary location

Yale Fertility Center

Orange, Connecticut, 06477, United States

Location status: Recruiting

About this study

This study will assess the use of autologous bone marrow stem cells mobilization using 1,1'-[1,4-phenylenebis-(methylene)]-bis-1,4,8,11-tetraazacyclotetradecane (PLERIXAFOR) as an effective medical therapy for the treatment of Asherman's Syndrome (AS), Atrophic Endometrium (AE) and Recurrent Implantation Failure (RIF).

Primary Objective:

  • To compare endometrial thickness and implantation rates in women with AS, AE, and RIF receiving PLERIXAFOR compared to historic controls that received existing standard of care therapy
  • To compare ongoing pregnancy and live birth rates in women with AS, AE, and RIF receiving PLERIXAFOR compared to historic controls that received existing standard of care therapy

Secondary Objectives: (assessed in participants who have not achieved pregnancy as of the timepoint):

  • Endometrial thickness prior to treatment with PLERIXAFOR compared to endometrial thickness 3 and 6 months after treatment.

During this study, participants are asked to:

  • Refrain from use of non-steroidal anti-inflammatory drugs (NSAIDs) from 2 weeks prior to the start of the surgery/PLERIXAFOR administration, and for the 30 days following surgery/ PLERIXAFOR administration.
  • Abstain from intercourse for three months following surgery/PLERIXAFOR administration
  • Assessment of menstrual bleeding pattern before and 3 and 6 months following treatment with PLERIXAFOR
  • Assessment of endometrial blood flow before and 3 and 6 months following treatment with PLERIXAFOR
  • Assessment of endometrial histology three months following treatment with PLERIXAFOR The study intervention consists of administration of PLERIXAFOR the evening prior to scheduled standard of care surgery for women with AS, AE or RIF, for peripheral mobilization of stem cells. PLERIXAFOR is administered via the subcutaneous route, as a single dose of 20mg.

The goal of this study is to determine if the administration of PLERIXAFOR for autologous, peripheral stem cell mobilization and administration will restore endometrial function in women with AS, AE, and RIF, and allow for pregnancy implantation.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy, non pregnant females
  • ages ≥18 and ≤40 years old at time of enrollment
  • with either AS, AE, or RIF
  • For AS: surgical history of intrauterine trauma/infection, hypo/amenorrhea, intra-uterine adhesions
  • for AE: US documentation of persistent, <6mm endometrial thickness
  • for RIF: failure to achieve a clinical pregnancy after transfer of at least four good-quality embryos in a minimum of three fresh or frozen cycles in a woman under 40 years and currently being treated at Yale Fertility Clinic

Exclusion criteria

  • Presence of hydrosalpinx (diagnosed by radiographic or ultrasound imaging)
  • Endometriosis (diagnosed by previous surgery,)
  • Diminished ovarian reserve (AMH<1ng/ml or follicle stimulating hormone (FSH)>10)
  • History of genital tuberculosis or any ultrasound evidence of congenital uterine anomaly
  • Submucous or intracavitary fibroid, polyps
  • Currently pregnant
  • Personal history of thrombophilia or sickle cell disease
  • Inability to provide informed consent

Treatment and study plan

plerixafor

Drug

A 20mg single dose of PLERIXAFOR is administered subcutaneously the evening prior to scheduled standard of care surgery for women with AS, AE or RIF for peripheral mobilization of stem cells. For subjects weighing >83 kilogram, the dosing is a single dose of 0.24 milligram per kilogram.

Primary outcomes

  1. Change in endometrial thickness and implantation rates following treatment with Plerixafor at 6 month intervals up to 24 months, compared to controls

    Time frame: Every 6 months from baseline up to 24 months

    Change in endometrial thickness post treatment compared to historic controls that received existing standard of care therapy, measured using ultrasound. Thicker endometrium (>6mm) indicates restoration of endometrial function.

Secondary outcomes

  1. Change in endometrial thickness and implantation rates with Plerixafor in women with AS, AE and RIF at 3 month intervals, compared to baseline/pre-treatment

    Time frame: Every 3 months from baseline up to 24 months

    Change in endometrial thickness and implantation rates with Plerixafor in women with AS, AE and RIF at 3 month intervals, compared to baseline/pre-treatment will be assessed. Less atrophy, less fibrosis, greater blood vessel formation and greater endometrial blood flow on ultrasound, compared to historic controls is indicative of restoration of endometrial function.

  2. Difference in ongoing pregnancy and live birth rates in women with AS, AE and RIF following treatment with Plerixafor at 3 month intervals, compared to baseline/pre-treatment

    Time frame: Every 3 months from baseline up to 24 months

    The difference in ongoing pregnancy and live birth rates in women with AS, AE and RIF following treatment with Plerixafor at 3 month intervals, compared to baseline/pre-treatment will be assessed. Less atrophy, less fibrosis, greater blood vessel formation and greater endometrial blood flow on ultrasound, compared to historic controls is indicative of restoration of endometrial function.

  3. Change in endometrial thickness from baseline after treatment with Plerixafor at month 3 and month 6 for participants that have not achieved pregnancy as of the timepoint

    Time frame: baseline, month 3 and month 6

    Change in endometrial thickness from baseline after treatment with Plerixafor compared to month 3 and month 6 measured using ultrasound. Thicker endometrium (>6mm) indicates restoration of endometrial function.

Study contacts

Contact information is provided by the study sponsor or research team.

Hugh S Taylor, MD

CONTACT

[email protected]

(203)-785-6949

Michele Frank, BSN

CONTACT

[email protected]

(203)-785-6949

Sponsors and collaborators

Lead sponsor

Hugh Taylor

Other

Registry information

Official study title

Bone Marrow Derived Stem Cells Mobilization for Treatment of Asherman's Syndrome, Atrophic Endometrium, and Recurrent Implantation Failure

Important dates

Study start
2023
Primary completion
2026
Study completion
2027
First posted
Apr 25, 2022
Registry last updated
Nov 12, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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