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Probiotics as Adjuvant Treatment for Bacterial Vaginosis

Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03894813
Enrollment
126
Registered
2019-03-29
Start date
2019-03-26
Completion date
2020-12-30
Last updated
2021-07-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bacterial Vaginosis

Brief summary

The investigators are trying to determine if oral probiotics (Umeta-Miyue, Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14) (30 days)with metronidazole vaginal suppositories(7 days) is better than using metronidazole vaginal suppositories only in preventing the recurrence of bacterial vaginosis (BV).

Detailed description

Studies have shown that oral probiotics can significantly promote the recovery of vaginal flora mainly because intestinal microbiota can migrate and affect vaginal microecology. This project aims to evaluate the efficacy of oral probiotics (Umeta-Miyue, Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14) (30 days) with metronidazole vaginal suppositories(7 days) in the treatment of bacterial vaginosis and to explore the correlation between vaginal flora and fecal flora by detecting the metagenomics of vaginal secretions and intestinal feces at the time of baseline phase, the first month after treatment, the third month after treatment and the sixth month after treatment.

Interventions

DRUGProbiotics and Metronidazole

Oral probiotics (Umeta-Miyue, Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14) (qd, 30 days)+Metronidazole Suppositories (qd, 7 days)

Metronidazole Suppositories,qd, 7 days

Sponsors

BGI, China
CollaboratorOTHER
Peking University Shenzhen Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Aged 18 to 65 years old, with history of sexual activity, premenopausal women; 2. Nugent Score ≥ 7 for diagnosing BV; 3. Sign informed consent.

Exclusion criteria

1. mixed vaginitis, such as vulvovaginal candidiasis (VVC), Trichomonas vaginalis (TV) infection, Chlamydia trachomatis (CT) infection or gonococcal vaginitis; 2. History of systemic organic diseases or psychiatric diseases; 3. Planning for or during pregnancy, lactation, menstruation; 4. within 5 days of onset of the disease, any antibiotics has been used; 5. Long-term use of contraceptives or immunosuppressant; 6. Anaphylactic constitution or allergic to known ingredients of research drugs.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Related Clinical Signs or Symptoms at Baseline1 day before starting treatmentClinical signs and symptoms of bacteria vaginosis (BV), including homogeneous and thin vaginal discharge, unpleasant odour (such as a fishy smell) and vulvar discomfort (such as itching or burning), were recorded at baseline, the number of participants with related clinical signs or symptoms at Baseline were calculated.
Number of Participants With Clinically Effective in Each Study Arm in the 30-day Follow-upthe 30th day after starting treatmentClinical signs and symptoms of BV, including homogeneous and thin vaginal discharge, unpleasant odour (such as a fishy smell) and vulvar discomfort (such as itching or burning), were recorded at the 30-day, the number of participants with clinically effective (with the sign or symptoms disappeared or released compared with the baseline data) were calculated.
Number of Participants With Clinically Effective in Each Study Arm at the 90-day Follow-upthe 90th day after starting treatmentClinical signs and symptoms of BV, including homogeneous and thin vaginal discharge, unpleasant odour (such as a fishy smell) and vulvar discomfort (such as itching or burning), were recorded at the 30-day, the number of participants with clinically effective (with the sign or symptoms disappeared or released compared with the 30-day follow-up data) were calculated.
Number of Participants With Bacteriological Cure in Each Study Arm at the 30-day Follow-upthe 30th day after starting treatmentA vaginal swab for bacteriological assessment of BV by Nugent criteria was performed. The Nugent score can range from 0 to 10. Bacteriological cure of BV was defined as a normal Nugent score of 0-6. Participants who were clinical failures, or had a Nugent score ≥ 7 were therapeutic failures.
Number of Participants With Bacteriological Cure in Each Study Arm at the 90-day Follow-upthe 90th day after starting treatmentA vaginal swab for bacteriological assessment of BV by Nugent criteria was performed. The Nugent score can range from 0 to 10. Bacteriological cure of BV was defined as a normal Nugent score of 0-6. Participants who were clinical failures, or had a Nugent score ≥ 7 were therapeutic failures.

Countries

China

Participant flow

Recruitment details

Women who came to the gynaecological clinic of Peking University Shenzhen Hospital, China, between March 2019 and June 2019 with abnormal vaginal discharge symptoms were recruited.

Participants by arm

ArmCount
Probiotics and Metronidazole
Probiotics: Oral probiotics(Umeta-Miyue, Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14) ) (qd, 30 days); Metronidazole: Metronidazole vaginal suppositories (qd,7 days) Probiotics and Metronidazole: Oral probiotics (Umeta-Miyue, Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14) (qd, 30 days)+Metronidazole Suppositories (qd, 7 days)
52
Metronidazole Vaginal
Metronidazole vaginal suppositories(1 suppositories,qd,7 days ) Metronidazole Vaginal: Metronidazole Suppositories,qd, 7 days
47
Total99

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event11
Overall StudyComplain of the research staff and refused to continue the trial01
Overall StudyLack of Efficacy33
Overall StudyLost to Follow-up10
Overall StudyPregnancy21
Overall StudyProtocol Violation37
Overall StudyWithdrawal by Subject13

Baseline characteristics

CharacteristicProbiotics and MetronidazoleMetronidazole VaginalTotal
Age, Continuous34.2 years
STANDARD_DEVIATION 7
33.3 years
STANDARD_DEVIATION 7.5
33.8 years
STANDARD_DEVIATION 7.1
Childbirth history
At least one previous birth
31 Participants26 Participants57 Participants
Childbirth history
No birth before
21 Participants21 Participants42 Participants
Current relationship status
Married
36 Participants26 Participants62 Participants
Current relationship status
Single, divorced or separated
16 Participants21 Participants37 Participants
Employment status
Stable job
43 Participants41 Participants84 Participants
Employment status
Unemployed or unstable work
9 Participants6 Participants15 Participants
Race/Ethnicity, Customized
Caucasian
52 Participants47 Participants99 Participants
Sex: Female, Male
Female
52 Participants47 Participants99 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants
Sexual activity
Had no sexual activity in the last half of the year or vaginal sex less than 3 times per one month
24 Participants27 Participants51 Participants
Sexual activity
Sexual activity (vaginal sex) ≥ 3 times per one month
28 Participants20 Participants48 Participants
Smoking5 Participants2 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 630 / 63
other
Total, other adverse events
5 / 636 / 63
serious
Total, serious adverse events
0 / 630 / 63

Outcome results

Primary

Number of Participants With Bacteriological Cure in Each Study Arm at the 30-day Follow-up

A vaginal swab for bacteriological assessment of BV by Nugent criteria was performed. The Nugent score can range from 0 to 10. Bacteriological cure of BV was defined as a normal Nugent score of 0-6. Participants who were clinical failures, or had a Nugent score ≥ 7 were therapeutic failures.

Time frame: the 30th day after starting treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Probiotics and MetronidazoleNumber of Participants With Bacteriological Cure in Each Study Arm at the 30-day Follow-up30 Participants
Metronidazole VaginalNumber of Participants With Bacteriological Cure in Each Study Arm at the 30-day Follow-up28 Participants
p-value: <0.01Chi-squared
Primary

Number of Participants With Bacteriological Cure in Each Study Arm at the 90-day Follow-up

A vaginal swab for bacteriological assessment of BV by Nugent criteria was performed. The Nugent score can range from 0 to 10. Bacteriological cure of BV was defined as a normal Nugent score of 0-6. Participants who were clinical failures, or had a Nugent score ≥ 7 were therapeutic failures.

Time frame: the 90th day after starting treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Probiotics and MetronidazoleNumber of Participants With Bacteriological Cure in Each Study Arm at the 90-day Follow-up19 Participants
Metronidazole VaginalNumber of Participants With Bacteriological Cure in Each Study Arm at the 90-day Follow-up23 Participants
p-value: <0.01Chi-squared
Primary

Number of Participants With Clinically Effective in Each Study Arm at the 90-day Follow-up

Clinical signs and symptoms of BV, including homogeneous and thin vaginal discharge, unpleasant odour (such as a fishy smell) and vulvar discomfort (such as itching or burning), were recorded at the 30-day, the number of participants with clinically effective (with the sign or symptoms disappeared or released compared with the 30-day follow-up data) were calculated.

Time frame: the 90th day after starting treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Probiotics and MetronidazoleNumber of Participants With Clinically Effective in Each Study Arm at the 90-day Follow-up19 Participants
Metronidazole VaginalNumber of Participants With Clinically Effective in Each Study Arm at the 90-day Follow-up23 Participants
p-value: <0.01Chi-squared
Primary

Number of Participants With Clinically Effective in Each Study Arm in the 30-day Follow-up

Clinical signs and symptoms of BV, including homogeneous and thin vaginal discharge, unpleasant odour (such as a fishy smell) and vulvar discomfort (such as itching or burning), were recorded at the 30-day, the number of participants with clinically effective (with the sign or symptoms disappeared or released compared with the baseline data) were calculated.

Time frame: the 30th day after starting treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Probiotics and MetronidazoleNumber of Participants With Clinically Effective in Each Study Arm in the 30-day Follow-up30 Participants
Metronidazole VaginalNumber of Participants With Clinically Effective in Each Study Arm in the 30-day Follow-up28 Participants
p-value: <0.01Chi-squared
Primary

Number of Participants With Related Clinical Signs or Symptoms at Baseline

Clinical signs and symptoms of bacteria vaginosis (BV), including homogeneous and thin vaginal discharge, unpleasant odour (such as a fishy smell) and vulvar discomfort (such as itching or burning), were recorded at baseline, the number of participants with related clinical signs or symptoms at Baseline were calculated.

Time frame: 1 day before starting treatment

Population: Full analysis set of all randomized participants, that is 126, who had baseline samples were tested.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Probiotics and MetronidazoleNumber of Participants With Related Clinical Signs or Symptoms at Baseline63 Participants
Metronidazole VaginalNumber of Participants With Related Clinical Signs or Symptoms at Baseline63 Participants
p-value: <0.01Chi-squared

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026