Could a simple cup cut STIs and BV? new trial hopes so
NCT ID NCT05666778
First seen Jun 27, 2026 · Last updated Aug 25, 2026 · Updated 3 times
Summary
This study tests whether giving menstrual cups to economically vulnerable women in Kenya can lower rates of bacterial vaginosis (BV) and sexually transmitted infections (STIs). The cup is a reusable silicone device that collects menstrual blood and can be worn during sex. Researchers will track 408 women for up to three years to see if using the cup leads to a 25% drop in BV and fewer STIs like chlamydia and gonorrhea.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Menstrual cup (reusable silicone device)
- What this could lead to
- If it works, this could offer a low-cost, reusable tool to reduce bacterial vaginosis and sexually transmitted infections in vulnerable women.
- What could go wrong
- This is a single-arm trial with no comparison group, so results may be less reliable. The study is still early (Phase 2) and focused on a specific population in Kenya, so findings may not apply elsewhere.
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
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
408 people
The number who actually took part.
- Started
-
Feb 2023
- Finished
-
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
-
15 to 35 years
- Sex
-
Female participants only
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * age 15-35 years, * able to provide informed consent, * residing in Kisumu County, * not currently pregnant, * has experienced a menstrual period in the past 2 months, and * dependent on sex for livelihood as defined above. Exclusion Criteria: * pregnancy, * post-natal (within 6 months), * post-menopausal, * amenorrhea, * IUD in situ.
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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
-
Nyanza Reproductive Health Society
Kisumu, Nyanza, Kenya
-
Rush University Medical Center
Chicago, Illinois, 60612, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Could routine STI screening during pregnancy prevent preterm births?
- Vaginal device aims to boost infection treatment
- Blue light could soothe vaginal disorders without hormones