Can a vaginal probiotic stick around? new study follows women who got the treatment
NCT ID NCT07305844
First seen Jun 25, 2026 · Last updated Aug 20, 2026 · Updated 3 times
Summary
This study is for women who previously received a vaginal probiotic (LC106) for bacterial vaginosis in an earlier trial. Researchers want to see if the good bacteria from the probiotic can stay in the vagina over time. About 71 women will be followed, and the main goal is to check if the probiotic bacteria are still present at meaningful levels.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- LC106 (a vaginal tablet containing 6 strains of Lactobacillus crispatus)
- What this could lead to
- If successful, this could show that the probiotic consistently colonizes the vagina, pointing toward a way to restore healthy bacteria and reduce recurrent bacterial vaginosis.
- What could go wrong
- This is a very early (Phase 1), small, open-label study with no placebo group, so results may not prove effectiveness. The probiotic may not colonize as expected or could cause irritation.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Early phase 1
The earliest testing in people: a first look at safety, in a very small group.
- Participants
-
26 people
The number who actually took part.
- Started
-
Apr 2026
- Finished
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Aug 2026
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 40 years
- Sex
-
Female participants only
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Previous participant in the VIBRANT study, randomized to active LBP * Nugent score 4-10 Exclusion Criteria: * Infection requiring antibiotics detected on screening labs * Use of oral or vaginal antibiotics in the 30 days prior to screening * Use of an oral or vaginal probiotic in the 30 days prior to screening
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
CAPRISA
Vulindlela, South Africa
-
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a simple Self-Test cut preterm births in High-Risk pregnancies?
- Vaginal device aims to boost infection treatment
- Blue light could soothe vaginal disorders without hormones
- New vaginal capsule aims to tackle stubborn bacterial vaginosis
- Can a probiotic stop bacterial vaginosis recurrence?