NCT06519799

Brief Summary

Women's reproductive health has attracted increasing attention in recent years, including in the field of microbiology. Vaginal infections, such as vulvovaginal candidiasis, bacterial vaginosis and aerobic vaginitis, are common and a huge burden on our society. The vaginal microbiome is important in the prevention of these infections, in fertility and for healthy pregnancies. The composition, and therefore the 'health' of the vaginal microbiome, is influenced by many internal and external factors, including intimate health. However, it is not yet known how intimate health, and specifically the use of menstrual hygiene products, affects the microbiome and women's intimate comfort and health. In this study, the researchers aim to understand the influence of 5 menstrual hygiene products (tampon, menstrual cup, menstrual pad and 2 types of menstrual underwear) on women's intimate health (n = 100). First, this will be evaluated at the microbiome level, focusing on the female intimate microbiome, consisting of the skin in the groin, vulvar and vaginal microbiome. These sites are all closely linked and are affected in vaginal infections or by contact with menstrual hygiene products. Second, in addition to the direct impact on the microbiome, the impact on the participant's immune system will be evaluated, as some well-known menstrual hygiene products can cause irritation and inflammation. As a third goal, participants will assess the comfort and usability of each menstrual hygiene product and provide data on their lifestyle and other factors that may influence our results. The main goal is to investigate and define the impact of menstrual hygiene products on women's intimate health so that women can make an informed choice. In a first phase participants (n = 1500) will fill in a survey containing questions on general health, lifestyle and menstrual health. Based on these responses a selection of 100 participants will be made by the researchers to participate in the intervention trial.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2024

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 13, 2024

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 25, 2024

Completed
7 days until next milestone

Study Start

First participant enrolled

August 1, 2024

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2025

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2025

Completed
Last Updated

July 25, 2024

Status Verified

January 1, 2024

Enrollment Period

6 months

First QC Date

May 13, 2024

Last Update Submit

July 19, 2024

Conditions

Keywords

menstrual healthintimate health

Outcome Measures

Primary Outcomes (1)

  • Beta diversity of the vaginal microbiome

    This measure describes the taxonomic diversity between samples, a higher diversity is associated with a less healthy vaginal microbiome. Beta diversity within a participant over all products will be calculated as a stability measure. This will be defined for each participant comparing the baseline samples (right before menstruation) to the sample during and after menstruation. Comparison will be made between different menstrual hygiene products.

    Each month for 3 samplepoints until study completion, an average of 6 months

Secondary Outcomes (4)

  • relative abundance of eigentaxa

    Each month for 3 samplepoints until study completion, an average of 6 months

  • comfort and ease of use

    Periodically, after menstruation once a month.

  • alfa diversity of the vaginal microbiome

    Each month for 3 samplepoints until study completion, an average of 6 months

  • both alfa and beta diversity of the vulvar and groin skin microbiome

    Each month for 3 samplepoints until study completion, an average of 6 months

Study Arms (2)

Combination pill

EXPERIMENTAL

This arm ( n = 50) is selected based on their contraception use, under the combination pill your menstruation and composition of menstrual blood is altered. In this arm all participants will wear all 5 menstrual products, 1 product per menstruation. The order of products will be randomized over this arm.

Other: Menstrual hygiene products

No-hormonal contracteption

EXPERIMENTAL

This arm (n = 50) is selected based on the use of no hormonal contraception, to investigate a natural menstrual cycle. In this arm all participants will wear all 5 menstrual products, 1 product per menstruation. The order of products will be randomized over this arm.

Other: Menstrual hygiene products

Interventions

The influence on the intimate health of each product will be evaluated. As you can't not use a menstrual product during menstruation, no control group is included

Also known as: Menstrual cup, tampon, Menstrual pad, Menstrual underwear with cotton crotch, Menstrual underwear with non-cotton crotch
Combination pillNo-hormonal contracteption

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Gender Eligibility Detailspeople who menstruate
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • female
  • contraception: combination pill with stop week or no hormonal contraception
  • premenopausal
  • Dutch-speaking living in Belgium
  • regular menstrual cycle (if no hormonal contraception)

You may not qualify if:

  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Antwerp

Antwerp, 2020, Belgium

RECRUITING

MeSH Terms

Conditions

Vaginal Diseases

Interventions

Menstrual Hygiene Products

Condition Hierarchy (Ancestors)

Genital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital Diseases

Intervention Hierarchy (Ancestors)

Feminine Hygiene ProductsEquipment and Supplies

Central Study Contacts

Veronique Verhoeven, Professor

CONTACT

Sarah Lebeer, Professor

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
As the intervention is the use of a menstrual product, no masking is possible.
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: Each participant will wear all 5 menstrual products in a randomized order.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 13, 2024

First Posted

July 25, 2024

Study Start

August 1, 2024

Primary Completion

February 1, 2025

Study Completion

October 31, 2025

Last Updated

July 25, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share

Locations