NCT03982290

Brief Summary

Autism Spectrum Disorders (ASD) comprises a complex group of disorders of neuronal development characterized by social and communication impairment along with presence of repetitive and restrictive behaviors. Emerging evidences support the gut-brain axis and further microbiota-gut-brain axis. Elevated prevalence of gastrointestinal (GI) dysfunction in individuals with ASD suggested that targeting gut may benefit patients with ASD. Lactobacillus plantarum PS128 (PS128) was reported to be a psychobiotic in several animal studies which modulated the levels of neurotransmitters in different brain areas. The current randomized, placebo-controlled trial was conducted to investigate the psychophysiological effects of PS128 in preschool children with ASD.

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
250

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2018

Typical duration for not_applicable

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2018

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

May 31, 2019

Completed
11 days until next milestone

First Posted

Study publicly available on registry

June 11, 2019

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2019

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2020

Completed
Last Updated

June 11, 2019

Status Verified

June 1, 2019

Enrollment Period

1.2 years

First QC Date

May 31, 2019

Last Update Submit

June 10, 2019

Conditions

Keywords

autismpreschool children

Outcome Measures

Primary Outcomes (2)

  • Changes from baseline of anxiety subscale in Children's Behavior Checklist (CBCL)/Achenbach System of Empirically Based Assessment (ASEBA) at week 8 and week 16

    ASEBA for behavioral assessment

    Baseline, week 8 and week 16

  • Changes from hyperactivity subscale of Attention-Deficit/Hyperactivity Disorder Test (ADHDT) at week 8 and week 16

    Inattention, hyperactive symptoms evaluation

    Baseline, week 8 and week 16

Secondary Outcomes (5)

  • Gastrointestinal symptoms recorded by using GI Severity Index (6-GSI) at week 8 and week 16

    Baseline, week 8 and week 16

  • Change of total scores at week 8 and week 16 from baseline of Changes of Childhood Asperger Syndrome Test (CAST)

    Baseline, week 8 and week 16

  • Change of total scores at week 8 and week 16 from baseline of Penn Interactive Peer Play Scale, (PIPPS)

    Baseline, week 8 and week 16

  • Change of total scores at week 8 and week 16 from baseline of Social Interaction Assessment Scale

    Baseline, week 8 and week 16

  • Comparison of Microbiota composition between week 8 and baseline

    Baseline and week 8

Study Arms (3)

Lactobacillus plantarum PS128 (PS128)

ACTIVE COMPARATOR

Subjects will receive oral Lactobacillus plantarum PS128 capsules, 2 capsules per day, for 16 weeks.

Other: Probiotic, Lactobacillus plantarum PS128

Placebo

PLACEBO COMPARATOR

Subjects will receive oral placebo capsules, 2 capsules per day, for the first 8 weeks. The following 8 weeks, subjects will receive oral Lactobacillus plantarum PS128 capsules, 2 capsules per day, for 8 weeks.

Other: Placebo, microcrystalline cellulose

Normal Control

NO INTERVENTION

Normal control group are enrolled by invitation from the age and gender matched healthy children.

Interventions

PS128 capsules, 2 capsules per day

Also known as: PS128
Lactobacillus plantarum PS128 (PS128)

Placebo capsules, 2 capsules per day

Also known as: Placebo
Placebo

Eligibility Criteria

Age30 Months - 7 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Fulfill Diagnostic and Statistical Manual of Mental Disorders fifth version (DSM-V) criteria of Autism Spectrum Disorder
  • Do not take any other probiotics for at least 3 weeks before and during the study period

You may not qualify if:

  • Autistic children with other neurodevelopmental disorders or psychiatric diseases
  • With a clinically significant chronic medical condition, including; anemia, brain malformations, metabolic diseases, epilepsy, organic gastrointestinal disorders (i.e. gastroesophageal reflux, food allergies, irritable bowel syndrome (IBS)) and Celiac disease
  • On anti-fungal, antibiotics, special diet (i.e. gluten-free diet, casein-free diet, high-protein diet, ketogenic diet) and current use of psychiatric medications within the preceding 3 weeks were excluded
  • Known allergy to probiotics

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Pediatric Neurology, MacKay Children's Hospital

Taipei, Taiwan

RECRUITING

MeSH Terms

Conditions

Autistic Disorder

Interventions

Probioticsmicrocrystalline cellulose

Condition Hierarchy (Ancestors)

Autism Spectrum DisorderChild Development Disorders, PervasiveNeurodevelopmental DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Dietary SupplementsFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Study Officials

  • Hui-Ju Chen MD

    Department of Pediatric Neurology, MacKay Children's Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Investigators, researchers, outcome assessors, subjects and caregivers will be blinded to the randomization. A research assistant who is not involved in this trial will do the randomization by using randomly permuted blocks within the strata of two assignments, the placebo group and PS128 group with the ratio of 1:1.
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Double-blinded, randomized, placebo-controlled
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Attending Physician

Study Record Dates

First Submitted

May 31, 2019

First Posted

June 11, 2019

Study Start

October 1, 2018

Primary Completion

December 1, 2019

Study Completion

December 1, 2020

Last Updated

June 11, 2019

Record last verified: 2019-06

Data Sharing

IPD Sharing
Will not share

Locations