A Trial to Assess the Pharmacokinetics and Pharmacodynamics of a Novel Synbiotic Oral Supplement for Vaginal Health
A Randomized, Placebo-Controlled Trial to Assess the Pharmacokinetics and Pharmacodynamics of a Novel Synbiotic Oral Supplement for Vaginal Health
1 other identifier
interventional
200
1 country
1
Brief Summary
A randomized, placebo-controlled trial to assess the Pharmacokinetics and Pharmacodynamics of a novel synbiotic dietary supplement for vaginal health.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Feb 2026
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 20, 2026
CompletedStudy Start
First participant enrolled
February 26, 2026
CompletedFirst Posted
Study publicly available on registry
February 27, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 26, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 26, 2027
April 22, 2026
February 1, 2026
1 year
February 20, 2026
April 17, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Colonization of VV-01 probiotic strains in the vagina
Colonization of VV-01 probiotic strains in the vagina assessed using strain-specific qPCR from vaginal swabs
Baseline to Day 14
Secondary Outcomes (3)
Vaginal microbial ecosystem structure
Baseline to Day 14
Biogenic amines production capability in the vaginal microbiome
Baseline to Day 14
Safety and tolerability
Baseline to Day 14
Other Outcomes (1)
Vaginal pH
Baseline to Day 14
Study Arms (2)
Active VV-01
ACTIVE COMPARATORVaginal Health Active VV-01
Placebo Control
PLACEBO COMPARATORVaginal Health Placebo Control
Interventions
Vaginal Health Placebo Control Participants will orally ingest Vaginal Health Placebo Control once daily as directed for a period of 2 weeks
Product 1 Participants will orally ingest Vaginal Health Active Product 1 once daily as directed for a period of 2 weeks.
Eligibility Criteria
You may qualify if:
- Participants must meet all the following criteria:
- Healthy women with a vagina 21 - 60 years old at the time of electronic consent
- Sex assigned female at birth
- Eligible menstrual status:
- Pre-menopausal is defined as women in their childbearing years who must have a regular menstrual cycle (consistently average cycle length of 21 to 35 days) Note: Women in their childbearing years who do not have a regular menstrual cycle due to a hormone-based intrauterine device are eligible
- Peri-menopausal is defined as women who report irregular periods (differences in menstruation compared with their typical cycle in their 20s), with at least 1 period in the last 12 months AND report mild menopausal symptoms (e.g., vasomotor symptoms such as hot flashes, night sweats)
- Post-menopausal is defined as women with an absence of menstrual cycle for the last 12 consecutive months or longer
- Willing to ingest an oral capsule during the study and be blinded to product identity (active or placebo)
- Willing to self-collect vaginal swabs and pH samples
- Willing to abstain from the use of intravaginal products during the study period (e.g., vaginal suppositories, vaginal moisturizers including hyaluronic acid, boric acid suppositories, pH balancing wipes, douching, vaginal creams/gels), as well as lubrication and spermicides
- Able to read and comprehend English and provide electronic informed consent
- Resides in the United States
You may not qualify if:
- Active vaginal, pelvic, or urogenital infection (e.g., UTI, BV, yeast infection)
- Chronic vulvar and vaginal conditions (e.g., vulvodynia, lichen sclerosis and lichen planus, desquamative inflammatory vaginitis)
- Unexplained vaginal bleeding
- Use of copper-based intrauterine devices
- Note: Hormone-based intrauterine devices are permitted (e.g., Mirena®)
- For peri-menopausal and post-menopausal individuals, use of estrogen-based vaginal cream/gel or suppositories
- Women who have undergone surgical menopause (e.g., bilateral oophorectomy with or without hysterectomy)
- Current or recent use (\< 3 months prior to enrollment) of antibiotics or antifungals, or anticipated use during study period (e.g., perioperative antibiotics for upcoming elective procedures)
- Current or recent use (\<4 weeks prior to enrollment) of any other probiotic, prebiotic or synbiotic-containing products
- Note: Individuals who undergo a washout of 4-weeks prior to enrollment and are willing to abstain from consuming such products during the study are permitted. Food-based probiotics, prebiotics, and synbiotics are permitted (e.g., kimchi, yoghurt, kefir, kombucha)
- Pregnant, breastfeeding, or actively trying to conceive during the study period.
- Allergy to any ingredients in the investigational or placebo product.
- Receiving chronic oral steroid therapy (excluding those for skin, eyes, nose, or inhaled) or have received such treatment within 4 weeks of enrollment
- Surgery, immunotherapy, chemotherapy, radiation, or biological cancer therapy within 4 weeks of enrollment and/or planned during the next 2 weeks
- Diagnosed and active serious medical condition requiring current treatment (e.g., cancer; autoimmune diseases \[lupus, rheumatoid arthritis, Crohn's disease\]; serious cardiac, liver, endocrine (insulin-dependent diabetes and/or on SGLT2 inhibitors such as Jardiance®/Empagliflozin, Farxiga®/Dapagliflozin) or kidney disease; psychiatric conditions / substance use disorders; chronic infections \[HIV, Hepatitis B/C\], any condition which in the investigator's opinion may jeopardize the individual's safety or interfere with the ability to comply with the study
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Radicle Sciencelead
Study Sites (1)
Radicle Science Inc.
Del Mar, California, 92014-2605, United States
Related Links
Study Officials
- PRINCIPAL INVESTIGATOR
Susan Hewlings
Radicle Science
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Masking Details
- Double (Participant, Investigator): The investigator is blinded to the participants' assigned study products. Participants are blinded to the study product they received.
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 20, 2026
First Posted
February 27, 2026
Study Start
February 26, 2026
Primary Completion (Estimated)
February 26, 2027
Study Completion (Estimated)
February 26, 2027
Last Updated
April 22, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will not share
Data will not be shared with researchers outside of Radicle Collaborators on this study.