NCT07348562

Brief Summary

This is a 12 week study to investigate the effects of omega-3 polyunsaturated fatty acids (PUFAs) in children with attention deficit hyperactivity disorder (ADHD).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
15

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2021

Shorter than P25 for not_applicable

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

Study Start

First participant enrolled

February 1, 2021

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 4, 2021

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 20, 2021

Completed
2.4 years until next milestone

First Submitted

Initial submission to the registry

April 25, 2024

Completed
1.7 years until next milestone

First Posted

Study publicly available on registry

January 16, 2026

Completed
Last Updated

January 16, 2026

Status Verified

January 1, 2026

Enrollment Period

7 months

First QC Date

April 25, 2024

Last Update Submit

January 15, 2026

Conditions

Keywords

childreninflammationomega-3

Outcome Measures

Primary Outcomes (1)

  • Clinical Symptoms-Swanson, Nolan, and Pelham Rating Scale-4th Edition(SNAP-IV)

    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.

    Baseline, week 1,2,4,8,12

Secondary Outcomes (2)

  • Concentration of Peripheral Inflammatory Biomarkers

    Baseline and week 12

  • Cognitive function-Continuous Performance Test (CPT)

    Baseline and week 12

Study Arms (3)

Omega-3 (DHA)

EXPERIMENTAL

DHA supplementation

Dietary Supplement: Omega-3

Omega-3 (EPA)

EXPERIMENTAL

EPA supplementation

Dietary Supplement: Omega-3

Placebo

PLACEBO COMPARATOR

olive oil

Dietary Supplement: Placebo

Interventions

Omega-3DIETARY_SUPPLEMENT

Omega-3 PUFAs

Omega-3 (DHA)Omega-3 (EPA)
PlaceboDIETARY_SUPPLEMENT

Olive oil

Placebo

Eligibility Criteria

Age6 Years - 12 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Diagnosis of ADHD (DSM-5) made by a child and adolescent psychiatrist.
  • Age range: 6-12 years old at the time of enrollment.
  • SNAP-IV (Mandarin Chinese Version):
  • Inattention subscale score \> 12 or Hyperactivity/impulsivity subscale score \> 12 or Total score \> 24
  • Drug-naïve or no ADHD medication use in the past 6 months.
  • Signed informed consent required.

You may not qualify if:

  • Intelligence quotient \<80
  • Comorbid other psychiatric disorders, such as autism spectrum disorder, anxiety disorder, conduct disorder, schizophrenia, mood disorder
  • Comorbid physical disorders, such as thyroid dysfunction, cerebral palsy, coagulation disorders
  • Currently using omega-3 supplements
  • Allergy to omega-3

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

China Medical University

Taichung, Taichung, 404, Taiwan

Location

MeSH Terms

Conditions

Attention Deficit Disorder with HyperactivityInflammation

Interventions

Docosahexaenoic Acids

Condition Hierarchy (Ancestors)

Attention Deficit and Disruptive Behavior DisordersNeurodevelopmental DisordersMental DisordersPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Fatty Acids, Omega-3Dietary Fats, UnsaturatedDietary FatsFatsLipidsFatty Acids, UnsaturatedFatty AcidsFish OilsOils

Study Officials

  • Pei-Chen Chang, MD, PhD

    China Medical University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
double blind
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: To investigate the effects of DHA, EPA and placebo in children and adolescents with ADHD
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Attending Physician

Study Record Dates

First Submitted

April 25, 2024

First Posted

January 16, 2026

Study Start

February 1, 2021

Primary Completion

September 4, 2021

Study Completion

November 20, 2021

Last Updated

January 16, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations