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

11 oktober 2017 uppdaterad av: National Taiwan University Hospital
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.

Studieöversikt

Status

Okänd

Betingelser

Detaljerad beskrivning

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.

Studietyp

Observationell

Inskrivning (Förväntat)

70

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Taiwan
      • Taipei, Taiwan
        • Rekrytering
        • National Taiwan Univeristy Hospital
        • Kontakt:
          • Chi-Yung Shang, MD

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

7 år till 18 år (Barn, Vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

The researchers plan to recruit 35 ADHD subjects and 35 control subjects.

Beskrivning

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.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Kohorter och interventioner

Grupp / Kohort
TD-gruppen
Typiskt utvecklingskontroller utan livstidsdiagnos med ADHD
ADHD-grupp
Försökspersoner med klinisk diagnos av ADHD enligt DSM-V-kriterierna

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Psykiatrisk intervju
Tidsram: 1 timme
Ämnen kommer att intervjuas av den kinesiska versionen av Kiddie Epidemiologic-versionen av schemat för affektiva sjukdomar och schizofreni (K-SADS-E)
1 timme

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Continuous Performance Test (CPT)
Tidsram: 15 minutes
The main feature of CPT is that a rapid presentation of visual or auditory stimuli over a definite period of time. The subjects respond by pressing a switch button in response to a critical stimulus.
15 minutes
Wechsler Intelligence Scale for Children-3rd edition (WISC-III)
Tidsram: 1.5 hours
The WISC-III is composed of 13 subtests to test children's cognitive ability of different dimensions, which are grouped into two scores: performance IQ score (7 subtests: Picture Completion, Block Design, Object Assembly, Picture Arrangement, Coding, Symbol Search and Mazes subtests) and verbal IQ score (Information, Comprehension, Arithmetic, Similarities, Digit Span and Vocabulary subtests) (Allen and Thorndike 1995).
1.5 hours
Cambridge Neuropsychological Test Automated Batteries (CANTAB)
Tidsram: 1.5 hours
The CANTAB is a computer-administered, nonverbal (visually-presented) set of neuropsychological tasks developed at the University of Cambridge.
1.5 hours

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

National Taiwan University Hospital

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

31 juli 2017

Primärt slutförande (Förväntat)

30 juli 2018

Avslutad studie (Förväntat)

30 juli 2018

Studieregistreringsdatum

Först inskickad

25 september 2017

Först inskickad som uppfyllde QC-kriterierna

1 oktober 2017

Första postat (Faktisk)

3 oktober 2017

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

13 oktober 2017

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

11 oktober 2017

Senast verifierad

1 september 2017

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • 201705134RINC

Plan för individuella deltagardata (IPD)

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NEJ

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