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RCT(Randomized Clinical Trial ) of Antibiotic Therapy in Chronic Endometritis

F

Fu Xing Hospital, Capital Medical University

Status

Completed

Conditions

Chronic Endometritis

Treatments

Drug: Antibiotics

Study type

Interventional

Funder types

Other

Identifiers

NCT02648698
FuXingH

Details and patient eligibility

About

120 cases with a diagnosis of chronic endometritis, confirmed by the presence of plasma cells in endometrial biopsy sample identified by immunohistochemical staining using CD138 antibody, have been recruited. The subjects have been randomly divided into two groups, the experimental group have been given antibiotic (Levofloxacin and Tinidazole for 14 days) treatment, the control group did not receive any antibiotic. Initially it was planned for women in the control group to take placebo,but the organization was difficult, so it was changed prior to the start of the study to an open label study. A repeat endometrial biopsy sample have been obtained 2-4 weeks after completion of the antibiotic therapy to assess the response to treatment. The conversion rate will be compared between the two groups

Full description

This study will be carried out at the Hysteroscopy centre of the Fuxing Hospital, Capital Medical University ,Beijing, China. A total of 120 women with chronic endometritis who fulfilled the following inclusion criteria will be recruited:

  1. CD138 immunohistochemical staining of endometrial specimen showed presence of one or more plasma cells per 10HPF which confirmed chronic endometritis, according to published criteria.
  2. women who were pre-menopausal.
  3. no evidence of endometrial hyperplasia or malignancy or structural uterine pathology.
  4. agreement to have a second endometrial biopsy ~4 weeks after the initial endometrial biopsy.
  5. written informed consent obtained

Exclusion Criteria:

  1. women who received steroid hormone therapy within one month of recruitment.
  2. allergy or suspected allergy to the chosen antibiotic therapy.
  3. women who developed any concurrent infection and received any antibiotic therapy during the period of study other than the one prescribed according to the study protocol.

Power calculation: Assuming that the spontaneous CD138 conversion (from positive to negative ) rate is 25% and that the antibiotic therapy results in 60% conversion rate, the total number of subjects required in each arm of the RCT will be 37, accepting a Type I error of 0.05 and a Type II error of 0.1, and assuming a drop-out rate of 20%, 45 subjects will need to be recruited into each arm. Hence, a total of 90 subjects who fulfilled the inclusion criteria will be required.

Recruitment: Women have been recruited form the day case hysteroscopy unit of the Hysteroscopy center, Fuxing Hospital, Beijing, China. The Hysteroscopy center currently carries out ~600 day case hysteroscopy per month. In all cases, endometrial biopsy specimen will be obtained at the time of hysteroscopy for histological evaluation. Since 2013, all endometrial specimens have been routinely examined with the used of CD138 antibody to establish if there is evidence of chronic endometritis, in addition to routine histopathological examination. Previous audit showed that ~15% of subjects had positive staining for CD138 cells.We recruited the initial 132 subjects according to the inclusion and exclusion criteria succesfully from July 2016 to December 2018.

Randomization:Women who had histological confirmation of CE in an endometrial biopsy specimen and who fulfilled the inclusion criteria were randomized into the antibiotic group and control group in a 1:1 ratio using a computer-generated randomization list and sealed opaque envelopes prepared by the first author. The patients were not blinded to the antibiotic treatment. The pathologist who performed the histological evaluation was blinded to the treatment.

Antibiotic therapy: Women who were randomized to the treatment group were given oral Levofloxacin and Tinidazole daily for 14 days.

Women who were randomized to the control group did not receive any antibiotic. Staff Pharmacist dispense medication.

Consent: written informed consent will be obtained

Repeat endometrial biopsy & histological evaluation: The repeat endometrial biopsy will be performed after completion of the the antibiotic therapy. Immunohistochemical study using CD138 antibody will be performed.

Enrollment

120 patients

Sex

Female

Ages

18 to 50 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. CD138 immunohistochemical staining of endometrial specimen showed presence of one or more plasma cells per 10HPF which confirmed chronic endometritis, according to published criteria.
  2. women who were pre-menopausal.
  3. no evidence of endometrial hyperplasia or malignancy or structural uterine pathology.
  4. agreement to have a second endometrial biopsy ~4 weeks after the initial endometrial biopsy.
  5. written informed consent obtained

Exclusion criteria

  1. women who received steroid hormone therapy within one month of recruitment.
  2. allergy or suspected allergy to the chosen antibiotic therapy.
  3. women who developed any concurrent infection and received any antibiotic therapy during the period of study other than the one prescribed according to the study protocol.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

120 participants in 2 patient groups

Antibiotic group
Experimental group
Description:
This group received antibiotic therapy
Treatment:
Drug: Antibiotics
Control group
No Intervention group
Description:
This group did not receive antibiotic therapy

Trial documents
1

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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