Berberine plus doxycycline versus doxycycline alone for chronic endometritis

Randomized Controlled Trial of Berberine in Combination With Doxycycline in the Treatment of Chronic Endometritis

Phase1; Phase2 Interventional The Fourth Affiliated Hospital of Zhejiang University School of Medicine · NCT07180563

This trial tests whether adding berberine to standard doxycycline helps women of childbearing age with chronic endometritis diagnosed by CD138 to become cured more often.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Enrollment206 (estimated)
Ages20 Years and up
SexFemale
SponsorThe Fourth Affiliated Hospital of Zhejiang University School of Medicine Academic / other
Locations1 site (Yiwu, Zhejiang)
Trial IDNCT07180563 on ClinicalTrials.gov

What this trial studies

This randomized, open-label Phase 1/2 trial randomly assigns women diagnosed with CD138-positive chronic endometritis to receive either doxycycline alone or doxycycline plus oral berberine for 14 days. Diagnosis and outcome assessment rely on hysteroscopy with endometrial biopsy and CD138 immunohistochemistry, with cure defined as conversion from CD138-positive to negative. Primary outcome is cure rate; secondary outcomes include the number of CD138-positive plasma cells per 10 high-power fields and rates and characteristics of recurrent uterine polyps. Treatment allocation is 1:1 and patients are followed after a single treatment course to compare response and recurrence.

Who should consider this trial

Good fit: Women aged 20 or older of childbearing age with CD138-confirmed chronic endometritis who can undergo hysteroscopy and have no contraindications to doxycycline or berberine are ideal candidates.

Not a fit: Patients who are pregnant, have uterine malignancy, recent hormone therapy, G6PD deficiency, hemolytic anemia, hypersensitivity to the study drugs, or serious systemic disease are excluded and unlikely to benefit from participation.

Why it matters

Potential benefit: If successful, combining berberine with doxycycline could increase cure rates and reduce recurrence of chronic endometritis, potentially improving reproductive outcomes for affected women.

How similar studies have performed: Doxycycline is an established treatment for chronic endometritis, while adding berberine is a relatively novel approach with limited prior clinical data supporting its use in this condition.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Diagnosis of chronic endometritis by CD138 immunohistochemistry; Age≥ 20 years old, females of childbearing age; Agree to undergo hysteroscopy and hysteroscopic endometrial biopsy; No serious systemic disease; There are no contraindications to oral administration of doxycycline hydrochloride and berberine hydrochloride.

Exclusion Criteria:

Patients with pregnancy status, uterine malignant disease, hormone therapy within 3 months, glucose-6 phosphate dehydrogenase deficiency, hemolytic anemia, hypersensitivity to berberine hydrochloride or doxycycline. In addition, berberine hydrochloride has fewer oral adverse reactions, occasional nausea and vomiting, rash and drug fever, which disappear after stopping the drug. If the patient takes the wrong or missed medication, it is excluded.

Where this trial is running

Yiwu, Zhejiang

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 Chronic Endometritis
Last reviewed 2026-06-15 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.