NCT05840978

Brief Summary

The study investigates the effects of probiotics in a young healthy population experiencing stress during a stress challenge, i.e. The Trier Social Stress Test (TSST).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
240

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Apr 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

March 29, 2023

Completed
7 days until next milestone

Study Start

First participant enrolled

April 5, 2023

Completed
28 days until next milestone

First Posted

Study publicly available on registry

May 3, 2023

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 11, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 11, 2023

Completed
Last Updated

December 15, 2023

Status Verified

December 1, 2023

Enrollment Period

8 months

First QC Date

March 29, 2023

Last Update Submit

December 14, 2023

Conditions

Keywords

StressMental Health

Outcome Measures

Primary Outcomes (1)

  • Perceived stress

    Change in Perceived Stress Visual Analog Scale (VAS) in response to TSST

    Before, during, and after TSST at visit 2 (week 8)

Secondary Outcomes (6)

  • STAI score

    Before and after TSST at visit 2 (week 8)

  • PSS score

    baseline and week 8

  • STAI score

    baseline and week 8

  • Anxiety

    Before, during, and after TSST at visit 2 (week 8)

  • Emotional insecurity

    Before, during, and after TSST at visit 2 (week 8)

  • +1 more secondary outcomes

Other Outcomes (3)

  • Cortisol

    Before, during, and after TSST at visit 2 (week 8)

  • Inflammatory biomarker IL-6

    baseline and week 8

  • Inflammatory biomarker IL-10

    baseline and week 8

Study Arms (3)

Probiotics combined strains

EXPERIMENTAL

Probiotics combined strains administered as oral capsules once daily

Dietary Supplement: Probiotics

Probiotics single strain

EXPERIMENTAL

Probiotics single strain administered as oral capsules once daily

Dietary Supplement: Probiotics

Placebo

PLACEBO COMPARATOR

Placebo capsule administered orally once daily

Dietary Supplement: Placebo

Interventions

ProbioticsDIETARY_SUPPLEMENT

Oral capsules

Probiotics combined strainsProbiotics single strain
PlaceboDIETARY_SUPPLEMENT

Oral capsules

Placebo

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Able to give informed e-consent
  • Be between 18 and 45 years old, inclusive
  • In general good health, as determined by the investigator
  • Have a BMI of ≥18.5 and \<30.0 kg/m2
  • Willing to consume the study product daily for the duration of the study and comply with the study procedures
  • Have moderate stress, as measured on the Cohen's Perceived Stress Scale, with a score between 14 and 26 (inclusive)
  • Be able to communicate well with the Investigator, to understand and comply with the study requirements and be judged suitable for the study in the opinion of the investigator

You may not qualify if:

  • Scores ≥10 on General Anxiety Disorder 7 item (GAD-7) and Patient Health Questionnaire 9 item (PHQ-9)
  • Have a history of in-person public speaking or presenting to large groups regularly (≥2 times/year) in the past 12 months
  • Have a known major stressful life event occurring (current or upcoming) during the study
  • Participants who have a significant illness or condition which may, in the opinion of the investigator impact their ability to participate in the study or impact the study outcomes (e.g. any chronic disease, including hypertension, type 1 or 2 diabetes, cardiovascular diseases, gastrointestinal disorders, celiac disease, and IBD)
  • Any disease, that by the investigator's judgement, could interfere with the intestinal barrier function
  • Use of oral or systemic (topical allowed) immunosuppressant drugs, antibiotics, steroids, etc. within the one month before screening
  • Consumption of probiotic supplements that contain live bacteria in the 4 weeks before the screening
  • Regular use of anti-inflammatory drugs such as aspirin or ibuprofen (\>200mg/24 hours)
  • Food allergy or hypersensitivity to any component of the product
  • Heavy alcohol use or recent history (within one year) of illicit drug use
  • Participants who work night shifts
  • Participation in other clinical trials or studies in the last month
  • Desire and/or plans on changing current diet and/or exercise regime during the participation of this study
  • Participants who are pregnant or wish to become pregnant during the study
  • Participants who are lactating and/or currently breastfeeding
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Atlantia clinical trials

Cork, Ireland

Location

MeSH Terms

Conditions

Psychological Well-Being

Interventions

Probiotics

Condition Hierarchy (Ancestors)

Personal SatisfactionBehavior

Intervention Hierarchy (Ancestors)

Dietary SupplementsFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Study Officials

  • Timothy Dinan, Professor

    Atlantia Clinical Trials Ltd

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 29, 2023

First Posted

May 3, 2023

Study Start

April 5, 2023

Primary Completion

December 11, 2023

Study Completion

December 11, 2023

Last Updated

December 15, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations