Effects of Polyunsaturated Fatty Acids on the Visual Memory of Children With Attention Deficit Hyperactivity Disorder

NCT ID: NCT03299647

Last Updated: 2017-10-13

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

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Recruitment Status

UNKNOWN

Total Enrollment

70 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-07-31

Study Completion Date

2018-07-30

Brief Summary

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The investigators anticipate to identify specific polyunsaturated fatty acids that show significant differences between ADHD and control groups. In addition, these findings may offer more biological understanding in explaining the relationship between polyunsaturated fatty acids and visual memory among children with ADHD. The results will significantly contribute to the knowledge of the pathophysiological mechanisms of ADHD, especially the polyunsaturated fatty acids related to the behavioral/visual memory deficits of ADHD.

Detailed Description

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Because attention deficit hyperactivity disorder (ADHD) is an early onset and long-term impairing disorder with tremendous impact on individuals, families, and societies, detection and diagnosis are very important for ADHD. According to the investigators' previous work, children with ADHD have visual memory deficits as well as inattentive deficits. Previous studies show that polyunsaturated fatty acids are associated with cognitive problems in children. Analyzing differences in polyunsaturated fatty acids between children with ADHD and healthy controls could provide insight into underlying disease pathology of cognitive deficits. In this one-year project, the researchers will perform an analysis of polyunsaturated fatty acids in serum to identify potential biomarkers for the visual memory deficits of ADHD.

The purpose of this study is to:

1. To identify the specific polyunsaturated fatty acids of ADHD symptoms;
2. To identify the relationship between specific polyunsaturated fatty acids and visual memory deficits of ADHD.

This is a one-year project. After careful calculation of sample size, the study will recruit 35 children with ADHD, aged 7-18, and 35 healthy controls with matched age, sex and BMI. The investigators will quantify the polyunsaturated fatty acids in serum. The behavioral measures include ADHDRS-IV, SNAP-IV, CBCL, CGI-ADHD-S, SAICA, and Family APGAR-C. The Cambridge Neuropsychological Test Automated Battery (CANTAB) will be used to assess the visual memory of all participants. Conditional logistic regression and partial least squares discriminant analysis will be applied to identify significant polyunsaturated fatty acids for ADHD and visual memory deficits.

Conditions

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Attention-deficit/Hyperactivity Disorder

Keywords

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Attention-deficit/hyperactivity disorder behavioral deficits cognitive function polyunsaturated fatty acids visual memory

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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ADHD group

Subjects with clinical diagnosis of ADHD according to the DSM-V criteria

No interventions assigned to this group

TD group

Typically development controls without lifetime diagnosis with ADHD

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

Patients with ADHD are eligible to be included in this study only if they meet all of the following criteria:

1. Patients will be outpatients who are between 7 and 18 years of age.
2. Patients must have ADHD that meet the Diagnostic and Statistical Manual of Mental disorders, 5th edition (DSM-V) disease diagnostic criteria assessed by the investigator's clinical evaluation, as well as confirmed by the Chinese version of the Schedule for Affective Disorders and Schizophrenia for School-Age Children-Epidemiological Version (K-SADS-E).
3. Patients must have a Clinical Global Impressions-ADHD-Severity (CGI-ADHD-S) score \> 4 at baseline.
4. Patients must be psychotropic drug-naïve. Patients will be considered to be drug-naïve if they have never received medications specifically to treat ADHD.
5. Patients and parents (or legal representative) must have a degree of understanding sufficient to be able to communicate suitably with the investigator.
6. Patients must be of normal intelligence in the judgment of the investigator. Normal intelligence is defined as achieving a score of 80 or more when IQ testing is administrated.
7. Patients must have been judged by the investigator to be reliable to keep appointments for clinic visits and all tests, including neuropsychological testing and venipunctures.

Exclusion Criteria

Patients will be excluded from the study if they meet any of the following criteria:

1. Patients with current or past history of schizophrenia, schizoaffective Disorder, organic psychosis, bipolar I or II disorder, autism, or autism spectrum disorder. Other comorbid psychiatric disorders are not excluded if the ADHD symptoms are the primary source of impairment for the patient.
2. Patients with a history of any seizure disorder (other than febrile convulsion) or patients who are taking anticonvulsants for seizure control.
3. Patients have been at serious suicidal risk, determined by the investigator.
4. Patients with a history of alcohol or drug abuse within the past 3 months, or who are currently using alcohol, drugs of abuse, or any described or over-the-counter medication in a manner that the investigator considers indicative of abuse.
5. Patients with cardiovascular disease or other conditions that could be aggravated by an increased heart rate or increased blood pressure.
6. Patients who are likely to need Chinese medicine or health-food supplements that have central nervous system activity.
Minimum Eligible Age

7 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Taiwan University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Chi-Yung Shang, MD

Role: PRINCIPAL_INVESTIGATOR

Dept of Psychiatry, National Taiwan University Hospital

Locations

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National Taiwan Univeristy Hospital

Taipei, , Taiwan

Site Status RECRUITING

Countries

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Taiwan

Central Contacts

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Chi-Yung Shang, MD

Role: CONTACT

Phone: 886-2-23123456 Ext. 66965

Email: [email protected]

Facility Contacts

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Chi-Yung Shang, MD

Role: primary

Other Identifiers

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201705134RINC

Identifier Type: -

Identifier Source: org_study_id