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Bacteriotherapy to Improve Underarm Odor

Phase 2
Completed
Conditions
Bromhidrosis
Interventions
Biological: Bacterial spray
Registration Number
NCT03967470
Lead Sponsor
University Ghent
Brief Summary

The goal is to improve the underarm odor by changing the microbiome. The autochthonous bacterial community is replaced by a non-smelling microbiome, by daily application of bacteria in a spray.

Detailed Description

Participants are recruited and selected based on their initial underarm odor and underarm microbiome. The participants use two sprays: one spray containing the bacteria, and the other nothing (placebo). Participants do not know which spray they have. They use one spray during one month, and meanwhile take samples of their underarm microbiome (for sequencing), volatome (for GC/MS analysis) and odor (for odor panel analysis). Samples are stored in the freezer and brought to the university after one month, when they receive the second spray. The bacterial spray contains bacteria that are correlated with good underarm odor.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
67
Inclusion Criteria
  • above average underarm malodor
  • microbiome dominated with malodorous bacteria
Exclusion Criteria
  • not healthy
  • microbiome with too high levels of Staphylococcus

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Placebo armBacterial sprayPlacebo spray used during one month
Treatment armBacterial sprayBacteria spray used during one month
Primary Outcome Measures
NameTimeMethod
Improved underarm odor1 month

Odor panel and GC/MS results provide insights on underarm odor development

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

Ghent University

🇧🇪

Gent, Belgium

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