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Probiotics Regulate Intestinal Health and Alleviate Anxiety

Effects of Probiotics on Alleviating Anxiety and Depression and Gut Microbiota

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07353320
Enrollment
79
Registered
2026-01-20
Start date
2024-04-10
Completion date
2025-04-01
Last updated
2026-01-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anxiety Depression

Brief summary

This study is a randomized, double-blind, placebo-controlled trial aimed primarily at investigating the effects of Weizmannia coagulans BC99 on alleviating anxiety and depression and the gut microbiota.

Interventions

DIETARY_SUPPLEMENTprobiotics group

The intervention lasted 8 weeks, with follow-ups at weeks 0 and 12.

DIETARY_SUPPLEMENTPlacebo Group

The intervention lasted 8 weeks, with follow-ups at weeks 0 and 12.

Sponsors

Wecare Probiotics Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Double (Participant, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

1. Adults aged 18-65 years. 2. Individuals experiencing scientific research, employment-related, or occupational stress, including graduate students or community-dwelling adults with job-related pressure. 3. A Hamilton Depression Rating Scale (HAMD-17) score ≥ 8 and/or a Hamilton 4) Anxiety Rating Scale (HAMA-14) score ≥ 7 at screening. 5)Ability and willingness to voluntarily participate in the study and to provide written informed consent prior to enrollment.

Exclusion criteria

1. A confirmed previous diagnosis of other psychiatric disorders, including intellectual disability, bipolar disorder, treatment-resistant depression, or suicidal ideation. 2. Pregnant or breastfeeding women. 3. Individuals with known food or drug allergies, or those with alcohol abuse or psychotropic substance abuse. 4. Use of antibiotics or probiotics known to affect gut microbiota for more than one week within one month prior to enrollment. 5. Participants who withdrew from the study, discontinued intervention, or were unable to complete the study for any reason.

Design outcomes

Primary

MeasureTime frameDescription
Assess the changes in the severity of depressive symptoms.8 weeksThe severity of depressive symptoms is assessed by changes in scores on the Hamilton Depression Rating Scale-17 items (HAMD-17) and the Hamilton Anxiety Rating Scale (HAMA-14). The Hamilton Depression Rating Scale (17-item version) is a clinician-administered rating scale consisting of 17 items. The total score ranges from 0 to 52, with higher scores indicating more severe depressive symptoms. The Hamilton Anxiety Rating Scale (14-item version) is a clinician-administered rating scale consisting of 14 items. The total score ranges from 0 to 56, with higher scores indicating more severe anxiety symptoms.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026