Investigating chronic endometritis in women with reproductive failure

Confounding Factors of Chronic Endometritis in Women With Reproductive Failure

Observational Chinese University of Hong Kong · NCT05613049

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

Quick facts

Study typeObservational
Enrollment720 (estimated)
Ages20 Years to 45 Years
SexFemale
SponsorChinese University of Hong Kong Academic / other
Drugs / interventionsimmunotherapy
Locations1 site (Hong Kong)
Trial IDNCT05613049 on ClinicalTrials.gov

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.

Who should consider this trial

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.

Not a fit: Patients with uncorrected uterine anomalies, untreated hydrosalpinx, or known autoimmune diseases are unlikely to benefit from this study.

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

Eligibility criteria

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 this trial is running

Hong Kong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions IVFchronic endometritisconfounding factorsreproductive failureinfertilityinfertility women
Last reviewed 2026-06-13 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.