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The Effect of Oral Bifidobacterium on Exogenous Creatine Absorption in Adult Subjects

The Therapeutic Effects of Combining Bifidobacterium With Creatine on Depression

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06594406
Enrollment
77
Registered
2024-09-19
Start date
2024-10-10
Completion date
2025-06-27
Last updated
2025-08-03

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

Conditions

Depression

Brief summary

The purpose of this clinical trial is to learn if Bifidobacterium has antidepressant-like effects by enhancing creatine absorption in adults. The main questions to be answered are Does Bifidobacterium combined with creatine have better antidepressant effects? Does Bifidobacterium enhance exogenous creatine uptake? Researchers will compare bifidobacterium combined with creatine with placebo to see if bifidobacterium combined with creatine has antidepressant effects. Participants will: Take bifidobacterium, creatine or placebo every day for 4 weeks. Keep a diary of their symptoms and collect blood samples.

Interventions

DIETARY_SUPPLEMENTCreatine

The dosing schedule of creatine administration is 3 g daily for 4 weeks, and administration of a placebo.

DIETARY_SUPPLEMENTBifidobacterium and creatine

The dosing schedule of creatine administration is 3 g daily for 4 weeks. In parallel, the dosing schedule of bifidobacterium administration is 200 million colony-forming units (CFU) /day for 4 weeks.

DIETARY_SUPPLEMENTPlacebo

Administration of creatine placebo and bifidobacterium placebo for 4 weeks,

Sponsors

Zhujiang Hospital
Lead SponsorOTHER

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

for depression: * Adults age 18-60 years inclusive. * Current diagnosis of major depression disorder (MDD) identified by the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders-5 (SCID-5). * Current Hamilton Depression Scale 17 score of \> 16. * BMI (body Mass Index) between 18 and 28 kg/m² * Right-handed

Exclusion criteria

* Diagnosis of bipolar disorder, schizophrenia, or schizoaffective disorder, identified by the SCID-5. * History of or current diagnosis of acute kidney injury (AKI), chronic kidney disease (CKD) or end-stage renal disease (ESRD) * History of seizure disorder * Current serious suicide risk identified by the Columbia Severity Suicide Rating Scale * Previous diagnosis of creatine deficiency syndrome or evidence of creatine deficiency syndrome * Antibiotic use in last 30 days * Probiotics use in last 30 days * Positive pregnancy test * Breastfeeding

Design outcomes

Primary

MeasureTime frameDescription
Change from Baseline in Hamilton Depression Rating Scale4 weeksComparison of Hamilton Depression Rating Scale before and after treatment

Secondary

MeasureTime frameDescription
Change from baseline in creatine level in blood4 weeksComparison of creatine level in blood before and after treatment

Countries

China

Outcome results

None listed

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