Efficacy of Atomoxetine in the Neuropsychological Tests Among Children With ADHD
Přehled studie
Postavení
Postavení
Podmínky
Podmínky
Detailní popis
The rationale of this proposal is based upon the high prevalence (7.5% in Taiwan (Gau et al., 2004b)), the magnitude of the short- and long-term impact on individuals, family, and society, the responsibility of attention-deficit hyperactivity disorder ADHD to treatments with CNS stimulants and Atomoxetine. Although numerous studies have shown that methylphenidate demonstrates significant effect on improving neuropsychological functioning including inhibition of executive function (e.g., Aron et al., 2003; Kempton et al., 1999; Konrad et al., 2004) and motor control measures (e.g., Moll et al., 2000), there has been no study examining the effect of Atomoxetine on the improvement of response inhibition or other neuropsychological functioning among children with ADHD. As several clinical trials have shown the efficacy of Atomoxetine in improving the core symptoms of ADHD (e.g., Eiland and Guest, 2004; Michelson et al., 2002) and Atomoxetine has been approved by FDA as first line medication for child and adult ADHD in 2002, we anticipate that Atomoxetine will demonstrate significant efficacy on treating ADHD by improvement of neuropsychological measures.
The objectives of this study are:
- To examine the efficacy of atomoxetine on executive functioning measures including the Continuous Performance Test (CPT) and the executive function measures of the Cambridge Automated Neuropsychological Test Automated Battery (CANTAB).
- To examine the efficacy of atomoxetine on other neuropsychological measures including the Wisconsin Card Sorting Test (WCST), and the attention, memory, and paired learning tests of the CANTAB.
- To validate the ADHD using psychopathological, neuropsychological, functional brain imaging, behavioral, and social correlates.
This study is an open label, non randomized, clinical trial with daily dose of atomoxetine 1.2 mg/kg for subjects with ADHD. Thirty drug-naïve children with DSM-IV ADHD and 30 normal children matched in sex, age, and IQ will be recruited. All of the participants will be assessed by the CPT, WSCT, CANTAB, and several measures covering domains of ADHD symptoms and social functioning. Subjects with ADHD will be reassessed using the neuropsychological tests and other measures on Week 4 (Visit 2) 3 days, Week 12 (Visit 2) 3 days of treatment with atomoxetine 1.2 mg/kg.
The sample will consist of 30 subjects with ADHD, aged 10 to 15, and 30 subjects without ADHD, who are matched in age, sex, and IQ as cases. We anticipate that this study will provide enough evidence to support the efficacy of Atomoxetine not only on the symptoms improvement but also neuropsychological measures and fMRI studies among children with ADHD.
Typ studie
Typ studie
Zápis (Aktuální)
Zápis
Kontakty a umístění
Studijní místa
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Taipei, Tchaj-wan
- National Taiwan University Hospital
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Kritéria účasti
Kritéria způsobilosti
Kritéria způsobilosti
Věk způsobilý ke studiu
Přijímá zdravé dobrovolníky
Pohlaví způsobilá ke studiu
Metoda odběru vzorků
Studijní populace
Popis
Inclusion Criteria:
(1) subjects had the clinical diagnosis and the K-SADS-E of DSM-IV ADHD; (2) their ages range from 10 to 15; (3) subjects must not have taken any medication used to treat ADHD; (4) subjects' IQ should be larger than 80; (5) subjects and their parents and teachers consent to participate and have the ability to complete self-administered measures in this study.
Exclusion Criteria:
The subjects will be excluded from the study if they currently meet criteria or have a history of the following conditions as defined by DSM-IV: Shizophrenia, Schizoaffective Disorder, Organic Psychosis, Mental Retardation, Pervasive Developmental Disorder, Anxiety Disorders, Phobia, Obsessive-Compulsive Disorder, Depressive Disorders, or Bipolar Disorders. In addition, subjects will be excluded from this study if any evidence showing medical problems, or seizure. Moreover, the subjects will be excluded from the control group if have a history of the following condition as defined by DSM-IV: ADHD, ODD, or CD in addition to the above exclusion criteria.
Studijní plán
Jak je studie koncipována?
Detaily designu
- Observační modely: Pouze případ
- Časové perspektivy: Jiný
Co je měření studie?
Primární výstupní opatření
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
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The Efficacy of Once-Daily Atomoxetine Hydrochloride on Executive Function in Taiwanese Children with Attention-deficit/ Hyperactivity Disorder
Časové okno: 12 weeks
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Patients with ADHD performed worse in the backward digit span task, CPT, IED and RVIP than the controls.
Their significant improvement in executive function after treatment with atomoxetine for 4 weeks included fewer omission and commission errors, fewer hit reaction time standard errors, and less variability in the CPT; fewer total errors and trials in the IED; higher probability of hits, total correction rejection, and total hits, fewer total misses, and shorter latency in the RVIP; longer span length and fewer total usage errors in the SSP; fewer errors and strategy utilization in the SWM; and more problems solved, fewer mean moves, and shorter subsequent thinking time in the SOC.
Atomoxetine significantly reduced ADHD-related symptoms over time.
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12 weeks
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Spolupracovníci a vyšetřovatelé
Sponzor
Sponzor
Spolupracovníci
Spolupracovníci
Vyšetřovatelé
Vyšetřovatelé
- Vrchní vyšetřovatel: Susan Shur-Fen Gau, MD, PhD, Dept of Psychiatry, National Taiwan University Hospital
Publikace a užitečné odkazy
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia
Začátek studia
Primární dokončení (Aktuální)
Primární dokončení
Dokončení studie (Aktuální)
Dokončení studie
Termíny zápisu do studia
První předloženo
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Odhad)
První zveřejněno
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Poslední zveřejněná aktualizace
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Naposledy ověřeno
Více informací
Termíny související s touto studií
Další relevantní podmínky MeSH
Další identifikační čísla studie
Další identifikační čísla studie
- 200612093M
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