Clinical trial Recruiting at 1 site Early Phase 1 Interventional Ages 18 to 54 Women only

Effects of a lactic acid gel on vaginal health

Official title: Exploring the Effects of an Intravaginal Lactic Acid Gel on the Vaginal Microbiome

Run by Queen's Medical Center · NCT05753813 · Data updated 2026-11-12

This study is testing if the contraceptive Phexxi can improve vaginal health by increasing good bacteria and reducing discomfort for women.

More Bacterial Vaginosis trials

Quick facts

PhaseEarly Phase 1
Study typeInterventional
Ages18 Years to 54 Years
SexWomen only
Enrollment22 (estimated)
SponsorQueen's Medical Center
Academic / other
Locations1 site (Honolulu, Hawaii)
StatusRecruiting
StartedDecember 15, 2023
Main results expectedOctober 30, 2026
Study endsDecember 30, 2026
Registry record updatedFebruary 20, 2026
Trial IDNCT05753813 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are pre-menopausal women aged 18-54 with a history of recurrent bacterial vaginosis or candidiasis.

Probably not a fit

Patients who are pregnant, post-menopausal, or have certain medical conditions such as kidney disease will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This trial investigates the impact of the contraceptive method Phexxi on the vaginal microbiome, specifically its ability to promote lactic acid-producing lactobacilli. It employs a pre-post study design, assessing participants' vaginal microbiome before and after a four-week course of Phexxi. The primary outcomes include an increase in beneficial lactobacilli and a reduction in symptoms of vulvovaginitis. The study is conducted at Queen's Medical Center, where eligible patients will be approached by clinicians for participation.

Why it matters

Potential benefit: If successful, this study could lead to improved management of bacterial vaginosis and vulvovaginal candidiasis in women.

How similar studies have gone: While the approach of using Phexxi is novel, similar studies have shown promise in modifying the vaginal microbiome to improve health outcomes.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18-54
* Female
* Pre-menopausal
* Can speak and read in English
* Displays capacity for informed consent
* Has had 2 or more documented and/or self-reported episodes of symptomatic BV or candida infection in the last year, requiring, over-the-counter or prescription treatment

Exclusion Criteria:

* Pregnant or trying to become pregnant
* Post-menopausal
* Using NuvaRing device
* A past medical history of kidney disease, recurrent UTI, and/or urinary tract abnormalities
* Current UTI
* Using Phexxi as a contraceptive during the collection period of the study

Where it's running

  • Queens Medical Center, 1004 Clinic POB1
    Honolulu, Hawaii, United States
    Recruiting

Study contacts

  • Principal investigator: Olivia Manayan, MD, MPH — University of Hawaii
  • Study coordinator: Olivia H Manayan, MD, MPH
  • Email: omanayan@hawaii.edu
  • Phone: 808-348-7859

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.