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Study identifier: NCT06646185 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Improving Menstrual and VAginal Health for All

Condition: Effects of Menstrual Products on the Vaginal Microbiome  ·  Sponsor: Swiss Tropical & Public Health Institute

PhaseNA
Planned participants100
Who can joinFemale, 18 Years to 35 Years
Healthy volunteersYes

About this study

A three-period crossover trial will study the effects of short-term use of 3 menstrual products (menstrual pad, tampon, menstrual cup) on the bacterial composition of the vaginal microbiome in three countries (Peru, Cameroon, and Switzerland). Each crossover period consists of two menstrual cycles, thus resulting in a 6-month trial. Participants will be randomly assigned to one of 6 exposure sequences (different order of products per sequence); in each sequence, participants will adopt each menstrual product for 2 menstrual cycles. Participants will provide vaginal microbiome samples via self-sample swabs at 3 points during each menstrual cycle. Given the crossover design of the study, there is not a dedicated control group.

This description comes directly from the study's public registry record.

Talk to the study team

Sonja Merten, MD MPH PhD  ·  0041-61-284-8387  ·  sonja.merten@swisstph.ch

Monica Ticlla, PhD  ·  0041-61-284-8387  ·  monicaroxana.ticllaccenhua@swisstph.ch

Always discuss trial participation with your own doctor first.

Locations (3)

Centre de Recherche sur les Maladies Emergentes et Re-EmergentesYaoundé, Yaoundé, CameroonRecruiting
Universidad Nacional de la Amazonia PeruanaIquitos, Iquitos, PeruRecruiting
Swiss Tropical and Public Health InstituteAllschwil, Allschwil, SwitzerlandRecruiting

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Source record: clinicaltrials.gov/study/NCT06646185