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Not listed No phase listed Observational Accepts healthy volunteers

Microbiome, Anxiety and Cognitive Orientation Study

ClinicalTrials.gov ID: NCT05388630

Public ClinicalTrials.gov record NCT05388630. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 13, 2026, 11:30 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

The Impact of a Gut-derived Metabolite on Anxiety Behavior of Human Subjects Based on Their Cognitive Orientation Variation

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Mounting evidence shows that the gut microbiome plays an important role in communication within the gut-brain axis. However, the relationship between gut microbiota and their influence on anxiety is still not fully understood. Recent studies on mice found a specific microbe-produced molecule, 4-ethylphenyl sulfate (4EPS), can induce anxious behavior. 4EPS is produced by gut microbes in mice and humans. Research suggests higher 4EPS levels may strongly be associated with anxiety levels. However, anxiety is far more complicated than changes in a single molecule. There are many more factors to consider when it comes to anxiety, including various aspects of one's lifestyle and how humans perceive their environment (cognitive orientation). The primary research goal is to better understand the effects 4EPS has on human anxiety behavior and the role cognitive orientation has in connection to anxiety.

Study identification

NCT ID
NCT05388630
Recruitment status
Not listed
Study type
Observational
Phase
Not listed
Lead sponsor
Endominance
Industry
Enrollment
2,000 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
May 31, 2022
Primary completion
Apr 10, 2023
Completion
May 29, 2023
Last update posted
Dec 13, 2022

2022 – 2023

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Endominance Inc. Irvine California 92618 Recruiting

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05388630, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Dec 13, 2022 · Synced Sep 13, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05388630 live on ClinicalTrials.gov.

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