8-week of PS128 RCT in Patients With Major Depressive Disorder

NCT ID: NCT04199845

Last Updated: 2019-12-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-08-28

Study Completion Date

2022-07-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

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.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The eligible patients will be randomly assigned to either active (PS128) or identical-appearing placebo capsule in an 1 : 1 ratio. A research assistant who is blind to the status of participants will conduct the randomization allocation. Recruited patients will be randomized in 1:1 ratio, by a computer-generated allocation sequence with blocks of 4. Patients, caregivers, and investigators will be all masked to the assignment. To ensure the concealment of the randomization assignment, active drug and placebo will be provided by coded containers. At the end of the first year, the investigators will temporarily decode the blinded medication to analyze the preliminary results.

Active capsule containing 300 mg of probiotics, equivalent to 3x10\^10 CFU of Lactobacillus plantarum PS128. PS128 and placebo will be manufactured by BENED biomedical and packed by a GMP pharmaceutical manufacture. PS128 or placebo will be provided twice, in the morning and in the afternoon, daily. Because activity and diet may alter composition of gut microbiota, the investigators will ask eligible patients not to change their lifestyle or diet pattern. In addition, though effects of psychotropics on inflammation are still controversial (Baumeister et al. 2016b), medications will be kept unchanged during the intervention period. If kinds of psychotropic were changed because of worsening clinical condition, the patient will be withdrawal from the study. However, if only dose of psychotropics were change, the investigators will record the changes, and the patients will be still kept in the study.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Major Depressive Disorder

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

probiotics gut permeability inflammation

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

PS128

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.

Group Type EXPERIMENTAL

PS128

Intervention Type DIETARY_SUPPLEMENT

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

placebo

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

Group Type PLACEBO_COMPARATOR

PS128

Intervention Type DIETARY_SUPPLEMENT

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

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

PS128

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

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

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

Exclusion Criteria

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

20 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Taipei Medical University WanFang Hospital

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Chun-Hsin Chen, MD

Role: PRINCIPAL_INVESTIGATOR

TMU-Wan Fang Hospital

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

WanFang Hospital, Taipei Medical University

Taipei, , Taiwan

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

Taiwan

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Chun-Hsin Chen, MD

Role: CONTACT

Phone: 886-970-746395

Email: [email protected]

Chun-Hsin Chen, MD

Role: CONTACT

Email: [email protected]

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Chun-Hsin Chen, MD

Role: primary

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

N201906056

Identifier Type: -

Identifier Source: org_study_id