NCT03379597

Brief Summary

In this study, the investigators will evaluate the efficacy, safety and related mechanism of dietary fiber and probiotics alone and in combination as a add-on treatment in improving the antipsychotic induced weight gain, the cognitive impairment, and psychotic syndrome in schizophrenia or bipolar disorder patients. The study will recruit 100 schizophrenia or bipolar disorder patients who meet the criteria of DSM-5, and then randomized to 4 groups: probiotics group(PB group) dietary fiber group(FB group) probiotics plus dietary fiber group(PF group) and control group(CT group) for a 12-weeks clinical trail. The specific aims are to compare probiotics group versus controls on: 1) clinical core symptoms; 2) cognition;3)metabolic related markers.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
136

participants targeted

Target at P75+ for not_applicable schizophrenia

Timeline
Completed

Started Nov 2017

Typical duration for not_applicable schizophrenia

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

November 29, 2017

Completed
1 day until next milestone

Study Start

First participant enrolled

November 30, 2017

Completed
20 days until next milestone

First Posted

Study publicly available on registry

December 20, 2017

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2021

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2021

Completed
Last Updated

April 19, 2023

Status Verified

February 1, 2022

Enrollment Period

3.5 years

First QC Date

November 29, 2017

Last Update Submit

April 18, 2023

Conditions

Keywords

Schizophreniaprobioticscognitive impairmentMetabolic syndromeclinical trailEfficacySafetyDietary fiberBipolar Disorder

Outcome Measures

Primary Outcomes (2)

  • MATRICS Consensus Cognitive Battery (MCCB) composite score

    The investigators will use the MATRICS Consensus Cognitive Battery (MCCB) Composite score as primary cognitive outcome measure before and after treatment at different follow up point.

    12 weeks

  • Body Mass Index

    The body mass index (BMI) or Quetelet index is a value derived from the mass (weight) and height of an individual. The BMI is defined as the body mass divided by the square of the body height, and is universally expressed in units of kg/m2, resulting from mass in kilograms and height in metres.

    12 weeks

Secondary Outcomes (4)

  • Positive And Negative Syndrome Scale (PANSS)

    12 weeks

  • Lipid metabolism related blood index

    12 weeks

  • Physical exam index

    12 weeks

  • Hamilton Depression Scale and Young Manic Rating Scale (YMRS)

    12 weeks

Study Arms (4)

Probiotics Group

EXPERIMENTAL

Probiotics add-on treatment :(live Combined Bifidobacterium, Lactobacillus and Enterococcus Capsules, Oral), each capsule contain more then 1.0\*10\^7 CFU. Bifico: 840mg Bid.

Drug: Bifico (Live combined bifidobacterium,Lactobacillus and Enterococcus capsules, Oral)

Control Group

NO INTERVENTION

No probiotics or dietary fiber group.

Dietary fiber Group

EXPERIMENTAL

Prebiotics add-on treatment: dietary fibers compound powder, 30g bid

Dietary Supplement: Dietary fiber

Dietary fiber Probiotics group

EXPERIMENTAL

Dietary fiber and probiotics group: receiving both Bifico 840mg Bid and dietary fiber 30g bid.

Drug: Bifico (Live combined bifidobacterium,Lactobacillus and Enterococcus capsules, Oral)Dietary Supplement: Dietary fiber

Interventions

Bifico 840mg Bid

Dietary fiber Probiotics groupProbiotics Group
Dietary fiberDIETARY_SUPPLEMENT

dietary fiber compound powder 30g bid

Dietary fiber GroupDietary fiber Probiotics group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Meet the Diagnostic and Statistical Manual (DSM-V) diagnostic criteria for schizophrenia or bipolar disorder;
  • Patients with a weight gain of more than 10% after taking antipsychotic medications;
  • Male and female with aged 18 to 65 years;
  • PANSS total score \< 60 or HAMD-17 total score≤ 7 and YMRS total score\<5;
  • Signed the study consent for participation;
  • Not allergy to probiotics or dietary fiber medicine
  • On stable medication and dosage for at least 3 months.

You may not qualify if:

  • Having history of substance dependence or abuse or whose symptoms are caused by the other diagnosable mental disorders;
  • Having history of traumatic brain injury, seizures or other known neurological or organic diseases of the central nervous system;
  • Taking antidepressants, stimulants, mood stabilizer or accepts electricity shock treatment;
  • Having current suicidal or homicidal thoughts or any safety concern by research staff that cannot be manage in an inpatient setting;
  • The routine blood tests showing abnormal renal, liver function;
  • Pregnant or lactating women.
  • No administration of any antibiotics in two mouths

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Second Xiangya Hospital of Central South University

Changsha, Hunan, 410011, China

Location

Related Publications (1)

  • Liu C, Kang D, Xiao J, Huang Y, Peng X, Wang W, Xie P, Yang Y, Zhao J, Wu R. Dietary fiber and probiotics for the treatment of atypical antipsychotic-induced metabolic side effects: study protocol for a randomized, double-blind, placebo-controlled trial. Trials. 2021 Feb 23;22(1):159. doi: 10.1186/s13063-021-05123-w.

MeSH Terms

Conditions

SchizophreniaBipolar DisorderCognitive DysfunctionMetabolic Syndrome

Interventions

LacteolDietary Fiber

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental DisordersBipolar and Related DisordersMood DisordersCognition DisordersNeurocognitive DisordersInsulin ResistanceHyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Dietary CarbohydratesCarbohydratesFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Study Officials

  • DongYu Kang, M.D.

    Central South University

    PRINCIPAL INVESTIGATOR
  • SuJuan Li, M.D.

    Central South University

    PRINCIPAL INVESTIGATOR
  • RenRong Wu, M.D. Ph.D.

    Central South University

    PRINCIPAL INVESTIGATOR
  • Chenchen Liu, M.D.

    Central South University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Central South University

Study Record Dates

First Submitted

November 29, 2017

First Posted

December 20, 2017

Study Start

November 30, 2017

Primary Completion

May 31, 2021

Study Completion

June 30, 2021

Last Updated

April 19, 2023

Record last verified: 2022-02

Locations