Effects of Microbiome Modulation on Sleep in Working People
Sleep
1 other identifier
interventional
100
1 country
1
Brief Summary
We aim to test whether quality of sleep in working people can be improved by modulating the gut microbiome with probiotics.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started May 2023
Typical duration for not_applicable
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
April 18, 2023
CompletedFirst Posted
Study publicly available on registry
May 1, 2023
CompletedStudy Start
First participant enrolled
May 31, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2025
CompletedFebruary 17, 2025
February 1, 2025
2.1 years
April 18, 2023
February 13, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Change in subjective sleep quality
Pittsburgh Sleep Quality Index (PSQI)
4 weeks
Secondary Outcomes (9)
sleep latency
4 weeks
sleep duration
4 weeks
habitual sleep efficiency
4 weeks
sleep disturbances
4 weeks
use of sleeping medication
4 weeks
- +4 more secondary outcomes
Other Outcomes (3)
Microbiome composition
4 weeks
Metabolite composition
4 weeks
Hair Cortisol levels
4 weeks
Study Arms (2)
Probiotic
ACTIVE COMPARATORmulti-strain probiotic mixture containing Bifidobacterium bifidum W23, Bifidobacterium lactis W51, Bifidobacterium lactis W52, Lactobacillus acidophilus W22, Lactobacillus casei W56, Lactobacillus paracasei W20, Lactobacillus plantarum W62, Lactobacillus salivarius W24, Lactococcus lactis W19 in a matrix of maize starch, maltodextrin, inulin, potassium chloride, rice protein, magnesium sulfate, fructooligosaccharides, amylases and mangane sulfate at a dose of 2 x 3g per day for 4 weeks.
Placebo
PLACEBO COMPARATOR2 x 3g of a similar looking and tasting placebo per day for 4 weeks.
Interventions
multispecies probiotic
Eligibility Criteria
You may qualify if:
- Age \>18
- Working
- Signed Informed Consent;
- Willing to accept use of all encoded data, including publication, and the confidential use and storage of all data for at least 15 years
You may not qualify if:
- Diagnosed with a gastrointestinal infection within 4 weeks prior to screening
- Severe gastrointestinal diseases (e.g. inflammatory bowel diseases)
- Received any of the following products/medication within 4 weeks prior to screening: systemic antibiotics, prokinetics, prebiotic supplements, probiotic supplements
- Concomitant diseases or other circumstances that suggest that the patients are not eligible for participation in the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Medical University of Grazlead
- CBmed Ges.m.b.H.collaborator
Study Sites (1)
Medical University Graz
Graz, Austria
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- placebo, outcome assessors are blinded to the group allocation
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Univ. Prof. PD Dr. med
Study Record Dates
First Submitted
April 18, 2023
First Posted
May 1, 2023
Study Start
May 31, 2023
Primary Completion
July 1, 2025
Study Completion
December 1, 2025
Last Updated
February 17, 2025
Record last verified: 2025-02