Clinical trial Recruiting at 1 site Observational Ages 20 to 45 Women only

Investigating chronic endometritis in women with reproductive failure

Official title: Confounding Factors of Chronic Endometritis in Women With Reproductive Failure

Run by Chinese University of Hong Kong · NCT05613049 · Data updated 2026-11-12

This study is trying to see if treating chronic endometritis with specific antibodies can help women who are having trouble getting pregnant.

More IVF trials

Quick facts

Study typeObservational
Ages20 Years to 45 Years
SexWomen only
Enrollment720 (estimated)
SponsorChinese University of Hong Kong
Academic / other
Drugs / interventionsimmunotherapy
Locations1 site (Hong Kong)
StatusRecruiting
StartedJanuary 26, 2023
Main results expectedJuly 31, 2027
Study endsJanuary 31, 2028
Registry record updatedMarch 27, 2025
Trial IDNCT05613049 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include women aged 20-45 with a history of recurrent miscarriages or those who have failed to conceive after multiple IVF attempts.

Probably not a fit

Patients with uncorrected uterine anomalies, untreated hydrosalpinx, or known autoimmune diseases are unlikely to benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to explore the confounding factors associated with chronic endometritis and the potential therapeutic benefits of antibodies targeting plasma cells in women experiencing reproductive failure. Eligible participants will be recruited from the IVF and miscarriage clinic at the Prince of Wales Hospital/CUHK medical centre. The study will involve endometrial sampling during the mid-luteal phase, with hormonal assessments and ultrasound evaluations to ensure proper timing and conditions for sampling. Immunohistochemical techniques will be employed to quantify plasma cells in the endometrial tissue, which may provide insights into the role of chronic endometritis in infertility.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and treatment options for women facing infertility due to chronic endometritis.

How similar studies have gone: While similar studies have explored aspects of chronic endometritis, this specific approach focusing on plasma cells and their therapeutic implications is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

1. Age 20-45 years;
2. Women with a history of 2 or more consecutive miscarriages before 24 weeks of gestation12; or
3. Women who failed to conceive after unprotected intercourse for one year; or
4. Women who failed failure to achieve a clinical pregnancy after two consecutive cycles of IVF, ICSI or frozen embryo replacement cycles where the cumulative number of transferred embryos is no less than four for day-2 embryos and no less than 2 for day-5 embryos (blastocysts), with all embryos being of good quality.

Exclusion criteria

1. Uncorrected uterine anomalies, such as the septate or bicornuate uterus, fibroids (submucous/intramural);
2. Untreated hydrosalpinx;
3. History of antiphospholipid syndrome;
4. Known clinical autoimmune disease;
5. Undergoing immunotherapy;
6. Abnormal thyroid function;
7. Abnormal karyotyping.
8. Those with active pelvic inflammatory disease or suspicion of infection etc.

Where it's running

  • The Chinese University of Hong Kong
    Hong Kong, Hong Kong
    Recruiting

Study contacts

  • Principal investigator: Jacqueline Pui Wah Chung, MBBS — Chinese University of Hong Kong
  • Study coordinator: Stacey Wong, BSc
  • Email: staceywong@cuhk.edu.hk
  • Phone: 35051764

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.