NCT04199845

Brief Summary

Background: Recent studies have suggested that gut-brain axis may be one of the mechanisms of major depression disorder. In animal studies, alteration of gut microbiota can affect animal's depression or anxiety-like behavior, brain neurochemistry and inflammation. In human studies, the composition of gut microbiota is different between patients with MDD and healthy controls. In addition, supplementation of probiotics can improve mood status in community and clinical participants. In preliminary open trial, the investigators found PS-128 can significantly reduce depression severity in patients with MDD. Therefore, the investigators would like to conduct an 8-week randomized, double-blind, placebo controlled trial of PS-128 in patients with MDD. Aims: This study will be an 8-week randomized, double-blind, placebo-controlled trial to investigate the effects of Lactobacillus plantarum PS128 on psychophysiology in patients with MDD. Method: This is a two-phase study. In the first phase, the investigators will recruited patients fulfilling the following inclusion criteria: Age 20-65; fulfill Diagnostic and Statistical Manual of Mental Disorders fifth version (DSM-V) criteria of major depressive episode in recent 2 years; Psychotropics including antidepressants, antipsychotics and hypnotics have been kept unchanged for at least 1 months. The exclusion criteria are: comorbid with schizophrenia, bipolar disorder, or other substance use (except tobacco) disorder; having active suicidal or homicidal ideation; known allergy to probiotics; comorbid with diabetes mellitus, irritable bowel syndrome, inflammatory bowl disease, liver cirrhosis, or autoimmune diseases; known active bacterial, fungal, or viral infections in one month; use of antibiotics, steroid, immunosuppressants, probiotics, or synbiotics in the month before collecting blood and fecal samples; pregnant or lactating women; who state to have dietary pattern changed or in diet within previous two months. Those with HAMD-17 \>=14 in the first screen will be randomized to PS-128 or placebo, with the ratio of 1:1, in the second phase intervention. In the second phase intervention, the investigators will give eligible patients Lactobacillus plantarum PS128 or placebo for 8 weeks, and compare depression symptoms, gut microbiota, gut permeability, and serum inflammation level before and after intervention.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for not_applicable major-depressive-disorder

Timeline
Completed

Started Aug 2019

Typical duration for not_applicable major-depressive-disorder

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

August 28, 2019

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

December 10, 2019

Completed
6 days until next milestone

First Posted

Study publicly available on registry

December 16, 2019

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2022

Completed
Last Updated

December 19, 2019

Status Verified

August 1, 2019

Enrollment Period

2.7 years

First QC Date

December 10, 2019

Last Update Submit

December 17, 2019

Conditions

Keywords

probioticsgut permeabilityinflammation

Outcome Measures

Primary Outcomes (1)

  • Changes of Hamilton Depression Rating Scale- 17 items (HAMD-17)

    HAMD-17 to evaluate the severity of depression

    baseline, week 2, week 4 and week 8.

Secondary Outcomes (8)

  • Changes of Depression and Somatic Symptoms Scale (DSSS)

    baseline, week 2, week 4 and week 8.

  • Changes of serum zonulin

    baseline and week 8

  • Changes of serum IFABP

    baseline and week 8

  • Changes of serum hs-CRP level

    baseline and week 8

  • Changes of serum IL-6 level

    baseline and week 8

  • +3 more secondary outcomes

Study Arms (2)

PS128

EXPERIMENTAL

PS128 will be given twice daily for 8 weeks Active capsule containing 300 mg of probiotics, equivalent to 3 x10\^10 CFU of Lactobacillus plantarum PS128.

Dietary Supplement: PS128

placebo

PLACEBO COMPARATOR

Placebo containing starch will be given twice daily for 8 weeks.

Dietary Supplement: PS128

Interventions

PS128DIETARY_SUPPLEMENT

PS128 or placebo will be given twice daily for 8 weeks.

PS128placebo

Eligibility Criteria

Age20 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 20-65
  • fulfill Diagnostic and Statistical Manual of Mental Disorders fifth version (DSM-V) criteria of major depressive episode in recent 2 years
  • Psychotropics including antidepressants, antipsychotics and hypnotics have been kept unchanged for at least one month
  • HAMD-17 \>= 14

You may not qualify if:

  • Comorbid with schizophrenia, bipolar disorder, or other substance use (except tobacco) disorder.
  • having active suicidal or homicidal ideation
  • known allergy to probiotics
  • comorbid with hypertension, diabetes mellitus, irritable bowel syndrome, inflammatory bowl disease, liver cirrhosis, or autoimmune diseases
  • known active bacterial, fungal, or viral infections in one month.
  • use of antibiotics, steroid, immunosuppressants, probiotics, or synbiotics in the month before collecting blood and fecal samples
  • pregnant or lactating women (by history)
  • who obviously change dietary pattern or in diet within previous month

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

WanFang Hospital, Taipei Medical University

Taipei, 116, Taiwan

RECRUITING

MeSH Terms

Conditions

Depressive Disorder, MajorInflammation

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental DisordersPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Chun-Hsin Chen, MD

    TMU-Wan Fang Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Chun-Hsin Chen, MD

CONTACT

Chun-Hsin Chen, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 10, 2019

First Posted

December 16, 2019

Study Start

August 28, 2019

Primary Completion

May 1, 2022

Study Completion

July 1, 2022

Last Updated

December 19, 2019

Record last verified: 2019-08

Data Sharing

IPD Sharing
Will not share

Locations