Ireland
--:--IST
Enrolling by invitation Not applicable

Effects of Lactic Acid Bacteria in Patients With Attention-Deficit/Hyperactivity Disorder

NCT07419659 · tracked via the Priya Life Science China tracker
Sponsor
I-Ching Chou
Phase
Not applicable
Started
2026-02-25
Last updated
2026-02-27

Condition(s) studied

ADHD - Attention Deficit Disorder With HyperactivityADD/ADHD

Investigational drug(s) / intervention(s)

postbiotics

postbiotics: The participants will consume 2 capsules of postbiotics supplement per day for 8 weeks

Study summary

The study aims to evaluate whether postbiotics supplementation can improve ADHD symptoms, such as mood and sleep, in children. Furthermore, salivary biochemical profiles will be analyzed and dietary habits will be recorded to further explore the effects and mechanisms of action of postbiotics.

Research process: 80 subjects who meet the admission conditions will be recruited within three years after IRB approval. They will take the research capsules (postbiotics) in an open label design study and complete the 8-week intervention plus 4 weeks follow up trial period.

Eligibility

Sex
ALL
Min age
6 Years
Max age
13 Years
Healthy volunteers
No
Inclusion Criteria: 1. Age 6-13 years old 2. Has been diagnosed with ADHD and is taking medication regularly or has not yet started medication. Exclusion Criteria: 1. Have taken antibiotics within one month or are receiving antibiotic treatment 2. Have used probiotic products in powder, capsule or tablet form within one month (including yogurt, yogurt, Yakult and other related foods) 3. Those who are allergic to lactic acid bacteria products 4. Obtain a disability certificate 5. Participating in other human research 6. Determined unsuitable by the investigator

Primary outcome measure(s)

  • Total Scores of Clinical Symptoms-Swanson, Nolan, and Pelham Rating Scale-4th Edition(SNAP-IV) — Baseline, 8th week and 12th week
    The SNAP-IV is used assess symptoms of ADHD (Attention Deficit Hyperactivity Disorder) in children and adolescents. It consists of a series of questions that rate the severity of behaviors such as inattention, hyperactivity, and impulsivity, based on teacher and parent observations. The scale includes both parent and teacher versions, allowing for a comprehensive view of a child's behavior in different environments. The scoring system rates each behavior on a 4-point scale from 0 (never or rarely) to 3 (very often), and higher total scores indicate more significant ADHD symptoms. The results help clinicians in diagnosing ADHD and monitoring treatment progress.
  • Total Scores of Child Behavior Checklist — Baseline, 8th week and 12th week
    This parent-reported questionnaire is a comprehensive assessment tool for identifying behavioral and emotional problems in children. It includes 100 items (scored 0-3) covering multiple domains such as anxiety, depression, social issues, and aggressive behavior, providing a detailed profile of the child's psychological functioning. The score ranges from 0-200, with a higher score representing higher concern of behavior problems.
  • Changes of Sleep and Appetite — Baseline, 8th week and 12th week
    Use Fitbit and sleep diary to monitor the bedtime resistance, sleep resistance, sleep disordered breathing, night-waking, daytime sleepiness and sleep onset delay. Diet diary and InBody to monitor the change of appetite and body weight.

Trial sites (1)

FacilityCityRegionStatus
China Medical University Hospital Taichung Taiwan
Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07419659 on ClinicalTrials.gov ↗ ← All trials in China