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AzTrials

Bacterial VaginosisVMBNCT02459665

Rwanda Vaginal Microbiota Restoration Study

A study testing Vaginal multiple lactobacilli-containing probiotic for prevention of BV recurrence, Prophylactic use of metronidazole pills (500 mg) and Vaginal Lcr35-containing probiotic for prevention of BV recurrence in people with Bacterial Vaginosis, run by Janneke van de Wijgert.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A pilot randomized controlled clinical trial of intermittent use of two different vaginal lactobacilli-containing probiotics, and oral metronidazole, to prevent bacterial vaginosis recurrence. Read more about this study

Who is it for?
Ages 18 to 45 years, women only
Conditions the study is for
Bacterial Vaginosis
What is being tested?
Vaginal multiple lactobacilli-containing probiotic for prevention of BV recurrence, Prophylactic use of metronidazole pills (500 mg) and Vaginal Lcr35-containing probiotic for prevention of BV recurrence
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
68 participants
Where
No sites listed yet
Study dates
5 Jun 2015to 6 Aug 2018
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • Sexually active, defined as having had sex at least twice in the two weeks prior to screening
  • At high risk of HIV/STIs/BV, defined as having had more than one sexual partner in the last 12 months OR having been treated for an STI and/or BV in the last 12 months
  • Successfully treated for BV (modified Amsel criteria) or TV (wet mount), and free of STIs, symptomatic vaginal candidiasis and UTI at enrollment
  • Currently in good physical and mental health as judged by a study physician
  • Willing and able to adhere to study procedures and provide written informed consent.

Who cannot join

  • Pregnant
  • HIV positive
  • Clinician-observed genital ulcers, condylomata, or other genital abnormalities at screening or enrollment
  • Underwent a gynaecological surgery/invasive procedure in the 3 months prior to screening
  • History of significant urogenital prolapse, undiagnosed vaginal bleeding, urine or faecal incontinence, or blood clotting disorders
  • Allergic to metronidazole or any other components of the study drugs
Show all 9Show fewer
  • Not willing to stop use of other oral or vaginal probiotics from the screening visit until the end of study participation
  • Participating in another health intervention study
  • For any other reason potentially interfering with participant safety or protocol adherence as judged by the Principal Investigator

About this study

Official title: Preparing for a Clinical Trial of Interventions to Maintain Normal Vaginal Microbiota for Preventing Adverse Reproductive Health Outcomes in Africa

A pilot randomized controlled clinical trial of intermittent use of two different vaginal lactobacilli-containing probiotics, and oral metronidazole, to prevent bacterial vaginosis recurrence.

Read the detailed description

This is a pilot study to prepare for larger clinical trials. Sixty-eight HIV-negative, non-pregnant, sexually active women aged 18-45 with bacterial vaginosis (BV, by modified Amsel criteria and/or Nugent score) and/or Trichomonas vaginalis (TV, on wet mount or by culture) will be treated using oral metronidazole for 7 days. After successful treatment, and when they are free of vaginal candidiasis, other curable sexually transmitted infections (STIs) and urinary tract infection (UTI)), they will be randomised to 4 different vaginal microbiome (VMB) maintenance interventions (17 per group) within 3 days of completing oral metronidazole treatment: 1) Behavioral 'vaginal practices cessation and safer sex' counselling only (control); 2) Behavioral counselling plus 500mg metronidazole pills twice per week for two months; 3) Behavioral counselling plus Ecologic Femi vaginal capsule, once per day for 5 days immediately after oral metronidazole treatment followed by thrice weekly, for two months; 4) Group 4: Behavioral counselling plus Gynophilus vaginal tablet, once every 4 days for two months. Vaginal probiotic use may be ceased temporarily during menstruation. Participants will be asked to adhere to the interventions for 2 months, and VMB assessments will take place before (screening and enrolment visits), during (Day 7, Month 1 and Month 2 visits), and after the interventions (Month 6 visit).

Being tested
Vaginal multiple lactobacilli-containing probiotic for prevention of BV recurrence, Prophylactic use of metronidazole pills (500 mg), Vaginal Lcr35-containing probiotic for prevention of BV recurrence
Medical subject headings
Vaginosis, Bacterial

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Vaginal multiple lactobacilli-containing probiotic for prevention of BV recurrenceBiological

    Also called Ecologic Femi+ vaginal capsule

    Vaginal probiotic to restore the vaginal microbiome and prevent BV recurrence after metronidazole treatment for BV or TV

  • Prophylactic use of metronidazole pills (500 mg)Drug

    Also called Tricozole

    Prophylactic use of metronidazole pills to prevent BV recurrence after metronidazole treatment for BV or TV

  • Vaginal Lcr35-containing probiotic for prevention of BV recurrenceBiological

    Also called Gynophilus LP vaginal tablet

    Vaginal probiotic to restore the vaginal microbiome and prevent BV recurrence after metronidazole treatment for BV or TV

Study groups in NCT02459665
Study groupRoleWhat they receive
Group 1No interventionNegative control group: After initial treatment for BV/TV, no intervention.
Group 2OtherPositive control group: After initial treatment for BV/TV, metronidazole pills (500 mg) twice per week for 2 months.
Receives: Drug: Prophylactic use of metronidazole pills (500 mg)
Group 3Active comparatorAfter initial treatment for BV/TV, Ecologic Femi+ vaginal capsule (a vaginal probiotic) once per day for 5 days immediately after the initial treatment followed by thrice weekly for two months.
Receives: Biological: Vaginal multiple lactobacilli-containing probiotic for prevention of BV recurrence
Group 4Active comparatorAfter initial treatment for BV/TV, Gynophilus LP vaginal tablet (a vaginal probiotic) once every 4 days for two months.
Receives: Biological: Vaginal Lcr35-containing probiotic for prevention of BV recurrence

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Bacterial Vaginosis (BV) Incidence by Modified Amsel Criteria

    Modified Amsel criteria positive is at least 2 of 3 of the following positive: clue cells, vaginal pH, whiff test.

    Modified intent-to-treat (ITT) analyses (women with Nugent 7-10 at enrollment excluded), using person-years (PY) at risk as denominator of each incidence rate.

    Measured: 2 months (intervention period)

  2. Bacterial Vaginosis (BV) Incidence by Nugent Scoring (Nugent 7-10)

    The Nugent score is a scale from 0-10 based on visualisation of three different bacterial morphotypes on a Gram stained slide, but in the incidence rates, the variable was used as a binary variable: BV present (Nugent score 7-10) or absent (Nugent score 0-6). Modified intent-to-treat (ITT) analyses (women with Nugent 7-10 at enrollment excluded), using person-years (PY) at risk as the denominator for each incidence rate.

    Measured: 2 months (intervention period)

  3. Trichomonas Vaginalis (TV) Incidence by Culture

    A swab was inoculated into an InPouch culture pouch, specifically designed for TV growth. The pouch was checked daily for five days to detect growth. The results was positive when growth detected and negative when no growth detected on the fifth day.

    Intent-to-treat (ITT) analyses, using person-years (PY) at risk as the denominator for each incidence rate.

    Measured: 2 months (intervention period)

  4. Vaginal Candidiasis Incidence by Wet Mount Microscopy

    A wet mount is a smear of vaginal fluid on a microscopy slide, which is examined under a microscope. Yeasts are visible without staining. The definition of vaginal candidiasis was any yeast visible on the wet mount. Symptomatic vaginal candidiasis was considered a safety outcome because treatment of bacterial vaginosis often results in vaginal candidiasis. Intent-to-treat (ITT) analysis with person-years (PY) at risk as the denominator of all incidence rates.

    Measured: 6 months: 2 months intervention period plus 4 months after intervention cessation

Secondary outcomes (1)
  1. Vaginal Microbiota Composition by Illumina HiSeq Sequencing: Lactobacillus Genus Concentration

    The vaginal microbiota sequencing results are exploratory and full data can be found in a manuscript on the BioRxiv preprint server. The most important outcome is the concentration of Lactobacillus genus in vaginal samples taken at the end of the intervention period (M2 visit).

    Measured: 2 months (intervention period)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Jun 2015 (estimated)
  2. Study start5 Jun 2015
  3. Primary completion23 Feb 2016
  4. Study completion6 Aug 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
68 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02459665
Sponsor's protocol ID
RETH000828
Acronym
VMB
Status last verified
Jun 2019
First submitted
21 May 2015
Last updated
16 Jul 2019
Data monitoring committee
No

Publications

  • Verwijs MC, Agaba S, Umulisa MM, van de Wijgert JHHM. Feasibility and acceptability of frequent vaginal self-sampling at home by Rwandan women at high risk of urogenital tract infections. Sex Transm Infect. 2022 Feb;98(1):58-61. doi: 10.1136/sextrans-2020-054816. Epub 2021 Jan 29.

    PubMed 33514681
  • Verwijs MC, Agaba S, Umulisa MM, Uwineza M, Nivoliez A, Lievens E, van de Wijgert JHHM. Vaginal probiotic adherence and acceptability in Rwandan women with high sexual risk participating in a pilot randomised controlled trial: a mixed-methods approach. BMJ Open. 2020 May 19;10(5):e031819. doi: 10.1136/bmjopen-2019-031819.

    PubMed 32434932
  • Verwijs MC, Agaba SK, Darby AC, van de Wijgert JHHM. Impact of oral metronidazole treatment on the vaginal microbiota and correlates of treatment failure. Am J Obstet Gynecol. 2020 Feb;222(2):157.e1-157.e13. doi: 10.1016/j.ajog.2019.08.008. Epub 2019 Aug 9.

    PubMed 31404542

Questions about this trial

What is this clinical trial studying?

A study testing Vaginal multiple lactobacilli-containing probiotic for prevention of BV recurrence, Prophylactic use of metronidazole pills (500 mg) and Vaginal Lcr35-containing probiotic for prevention of BV recurrence in people with Bacterial Vaginosis, run by Janneke van de Wijgert.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 Jul 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Bacterial Vaginosis (BV) Incidence by Modified Amsel Criteria (time frame: 2 months (intervention period)). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02459665, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Jul 2019.

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