NCT05836168

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

55
Monitor

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 May 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

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

April 18, 2023

Completed
13 days until next milestone

First Posted

Study publicly available on registry

May 1, 2023

Completed
1 month until next milestone

Study Start

First participant enrolled

May 31, 2023

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

February 17, 2025

Status Verified

February 1, 2025

Enrollment Period

2.1 years

First QC Date

April 18, 2023

Last Update Submit

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 COMPARATOR

multi-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.

Dietary Supplement: Omnibiotic Stress Repair

Placebo

PLACEBO COMPARATOR

2 x 3g of a similar looking and tasting placebo per day for 4 weeks.

Dietary Supplement: Placebo

Interventions

Omnibiotic Stress RepairDIETARY_SUPPLEMENT

multispecies probiotic

Also known as: Omnibiotic Stress
Probiotic
PlaceboDIETARY_SUPPLEMENT

Placebo

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

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

Study Sites (1)

Medical University Graz

Graz, Austria

Location

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
Model Details: Randomized, placebo controlled study
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

Locations