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Vaginosis, BacterialEarly Phase 1NCT02139839

Exploratory Study to Evaluate the Effects of the Probiotics L. Rhamnosus GR-1 and L. Reuteri RC-14

A Early Phase 1 study testing Lactobacillus capsules in people with Vaginosis, Bacterial, run by Kimberly-Clark Corporation at 1 site in Canada.

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

The purpose of this study was to determine whether L. rhamnosus GR-1 and L. reuteri RC-14 delivered via capsules to the vagina of post-menopausal women over a three day course of treatment can restore and maintain a lactobacilli-dominated microbiota. Read more about this study

Who is it for?
Ages 40 to 80 years, women only
Conditions the study is for
Vaginosis, Bacterial
What is being tested?
Lactobacillus capsules
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
14 participants
Where
1 siteCanada
Study dates
Sep 2012to May 2013
Phase
Early Phase 1
Are there results?
None posted in the registry

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 40 to 80 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Willing and able to read, understand, and sign the Informed Consent Form (ICF);
  • Post-menopausal females between the ages of 40 and 80 years old (subjects who have not had a menstrual period for the last 12 months);
  • Currently in a mutually monogamous sexual relationship or not sexually active;
  • Agree to be sexually abstinent 72 hours prior to each study visit. Also, agree to refrain from intercourse for 48 hours after treatment administration;
  • Agree to abstain from the use of any other intravaginal product (e.g. gels, foams, lubricants, douches, etc.) throughout the study period, from the time of screening until Day 47;
  • Willing and capable of following all study instructions; and
  • Good general health.

Who cannot join

  • Use of vaginal lubricants, or any products applied vaginally within three months prior to Visit 1and throughout the duration of study participation;
  • A history or currently undergoing immunosuppressive drug therapy, chemotherapy, or radiation therapy;
  • A medical condition which might compromise immune system functions (such as cancer, leucopenia, HIV-positive, or organ transplant);
  • Antibiotics and/or antifungal medication use within the last four (4) weeks;
  • Oral probiotic supplement use within 3 months prior to Visit 1 and throughout the duration of the study;
  • Significant changes in diet during the course of the study based on self-report;
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  • Induced menopause due to surgical or medical interventions, such as bilateral oophorectomy, hysterectomy, chemotherapy or radiation treatment;
  • Currently undergoing local or systemic estrogen therapy who are not willing to alter therapy during the course of the study;
  • A Nugent Score of 0 - 3 or greater than 6;
  • History of drug or alcohol abuse;
  • Currently diagnosed with or being treated for a genital infection or urinary tract infection;
  • Individuals with a sexually transmitted disease (self-reported or detected by the Principal Investigator);
  • At enrollment, have any social or medical condition, or psychiatric illness that, in the opinion of the Investigator, would preclude provision of informed consent, make participation in the study unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives;
  • Participation in a clinical trial involving an investigational product/device within the past three months; subjects who are scheduled to participate in another clinical study concurrently; and
  • Known intolerance or allergy to L. rhamnosus GR-1® or L. reuteri RC-14® or to any product excipients.

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Dorli Herman

    London, Ontario, N6J 0A8

Other trials in Canada

About this study

Official title: A Single-Center Exploratory Study to Evaluate the Effects of the Probiotics L. Rhamnosus GR-1 and L. Reuteri RC-14 on Subjects With Intermediate Nugent Scores

The purpose of this study was to determine whether L. rhamnosus GR-1 and L. reuteri RC-14 delivered via capsules to the vagina of post-menopausal women over a three day course of treatment can restore and maintain a lactobacilli-dominated microbiota. Exploratory analysis of microbial ecology, human microarrays and multiplex immunological assessments are included to characterize potential effects.

Being tested
Lactobacillus capsules, Placebo gelatin pill
Medical subject headings
Vaginosis, Bacterial

What participants receive

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

  • Lactobacillus capsulesOther

    1. rhamnosus GR-1 and L. reuteri RC-14 capsules manufactured by Chr. Hansen
  • Placebo gelatin pillDrug

    Placebo Comparator capsules, identical in appearance to the active product; 98% Gelatin with no L. rhamnosus GR-1 and L. reuteri RC- 14.

Study groups in NCT02139839
Study groupRoleWhat they receive
Gelatin pill firstPlacebo comparatorNot described
Receives: Other: Lactobacillus capsules; Drug: Placebo gelatin pill
Lactobacillus capsules firstExperimentalNot described
Receives: Other: Lactobacillus capsules; Drug: Placebo gelatin pill

What is being measured

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

  1. Change from baseline Nugent Score (arbitrary units) after treatment versus Change from baseline Nugent Score after placebo

    Determine whether L. rhamnosus GR-1 and L. reuteri RC-14 delivered via capsules to the vagina of post-menopausal women over a three day course of treatment can restore and maintain a lactobacilli-dominated microbiota for one week as measured by a decrease in the Nugent Scores from an intermediate score (4 - 6) at baseline to a normal score (0 - 3) following treatment compared to a placebo.

    Measured: Baseline Days 15 & 36, post treatment/control Days 19 & 40

Secondary outcomes (5)
  1. Percent Lactobacilli abundance

    Change in lactobacilli abundance before and after probiotic treatment and before and after placebo treatment. Lactobacilli abundance will be calculated as percentage of number of lactobacilli taxon divided by the total number of taxons.

    Measured: Untreated (Days 1, 5, & 15), Baseline Treatment I (Days15), Treatment I (Days 19 & 26), Baseline Treatment II (Day 36), Treatment II (Days 40 & 47)

  2. Change in presence of metabolites

    Gas chromatography-mass spectrometry will be used to determine changes in metabolites (such as lactate, glutamic acid, and others) before and after probiotic and placebo treatments.

    Measured: Untreated (Days 1, 5, & 15), Baseline Treatment I (Days15), Treatment I (Days 19 & 26), Baseline Treatment II (Day 36), Treatment II (Days 40 & 47)

  3. Change in cytokine/chemokine levels

    Multiplex ELISA based assay will be used to evaluate the modulation of cytokine and chemokine levels known regulate inflammation and host defense response before and after probiotic and placebo treatment.

    Measured: Untreated (Days 1, 5, & 15), Baseline Treatment I (Days15), Treatment I (Days 19 & 26), Baseline Treatment II (Day 36), Treatment II (Days 40 & 47)

  4. Change in global host gene expression

    Microarray analysis using GeneChip Human 2.0 ST array will be used to measure gene expression changes (by mRNA analysis) to determine whether there are differences in gene regulation between probiotic, placebo, and no treatment conditions.

    Measured: Untreated (Days 1, 5, & 15), Baseline Treatment I (Days15), Treatment I (Days 19 & 26), Baseline Treatment II (Day 36), Treatment II (Days 40 & 47)

  5. Change in self-reported vaginal symptoms

    Symptom analysis to evaluate whether probiotic treatment is associated with symptom relief.

    Measured: Untreated (Days 1, 5, & 15), Baseline Treatment I (Days15), Treatment I (Days 19 & 26), Baseline Treatment II (Day 36), Treatment II (Days 40 & 47)

Timeline

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

  1. First posted15 May 2014 (estimated)
  2. Study startSep 2012
  3. Primary completionMar 2013
  4. Study completionMay 2013

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
Early Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02139839
Sponsor's protocol ID
500-10-0002
Status last verified
May 2014
First submitted
2 May 2014
Last updated
15 May 2014
Results posted
No
Data monitoring committee
No

Publications

  • Bisanz JE, Seney S, McMillan A, Vongsa R, Koenig D, Wong L, Dvoracek B, Gloor GB, Sumarah M, Ford B, Herman D, Burton JP, Reid G. A systems biology approach investigating the effect of probiotics on the vaginal microbiome and host responses in a double blind, placebo-controlled clinical trial of post-menopausal women. PLoS One. 2014 Aug 15;9(8):e104511. doi: 10.1371/journal.pone.0104511. eCollection 2014.

    PubMed 25127240

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Lactobacillus capsules in people with Vaginosis, Bacterial, run by Kimberly-Clark Corporation at 1 site in Canada.

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 7 inclusion and 15 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 15 May 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

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

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change from baseline Nugent Score (arbitrary units) after treatment versus Change from baseline Nugent Score after placebo (time frame: Baseline Days 15 & 36, post treatment/control Days 19 & 40). 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 NCT02139839, which also lists 1 linked publication.

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 15 May 2014.

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