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Johnson M, Johnels JÅ, Östlund S, Jakobsson K, Högstedt J, Larsson PJ, Gillberg C, Billstedt E. Long-term medication for ADHD (LMA) trial: 2-year prospective observational study in children and adolescents. Core symptoms, daily functioning, and comorbidity outcomes. Eur Arch Psychiatry Clin Neurosci 2024; 274:879-890. [PMID: 38280948 PMCID: PMC11127865 DOI: 10.1007/s00406-023-01744-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 12/11/2023] [Indexed: 01/29/2024]
Abstract
More knowledge is needed about long-term ADHD medication and symptom, daily functioning, comorbidity, and tolerability outcomes. This "Long-term Medication for ADHD (LMA) trial" was a prospective observational 2-year trial in children and adolescents aged 6-18 years (extension of 1-year trial). Participants met criteria for DSM-5 ADHD (inattentive or combined), with complex comorbidities; autism spectrum disorder (31%), autistic traits (24%), oppositional symptoms (59%), anxiety (32%), dyslexia/language disorder (16%), borderline intellectual functioning (17%). Medication was individually tailored and followed-up at clinical visits (1, 2, 3, 6, 12, 18, 24 months). Primary outcome: Clinical Global Impression-Severity and Improvement scales (CGI-S, CGI-I). Secondary outcomes: Investigator-rated ADHD-Rating Scale, Weiss Functional Impairment Rating Scale-Parent report (WFIRS-P; Family, School Learning and Behavior, Life Skills, Self-Concept, Social Activities, and Risky Activities domains), comorbidity symptoms and adverse events (AEs). One hundred twenty-eight participants were enrolled (1-year trial only n = 27, LMA trial n = 101). Of these 29 (23%) discontinued, mainly due to AEs (n = 7), moving (n = 7), or no longer needing medication (n = 6). Main AEs were poor appetite, low mood, anxiety, irritability, fatigue. Improvements from baseline to 2 years were large in CGI-S (effect size (ES) 2.28), ADHD-RS (ES 2.06), and moderate to large in WFIRS-P (ES total 0.73, learning 0.4, family 0.67). Overall, the trial showed robust and sustained improvements in ADHD symptom severity and daily functioning over a period of 2 years of ADHD medication in children and adolescents with ADHD and complex comorbidities. Most AEs were mild. Comorbidity symptoms were improved after 1 year, particularly oppositional symptoms, depression, and anxiety.
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Affiliation(s)
- M Johnson
- Gillberg Neuropsychiatry Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - J Åsberg Johnels
- Gillberg Neuropsychiatry Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - S Östlund
- Gillberg Neuropsychiatry Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - K Jakobsson
- Gillberg Neuropsychiatry Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - J Högstedt
- Gillberg Neuropsychiatry Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - P Javid Larsson
- Habilitation and Health, Region Västra Götaland, Gothenburg, Sweden
| | - C Gillberg
- Gillberg Neuropsychiatry Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - E Billstedt
- Gillberg Neuropsychiatry Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Aral A, Onat M, Aydemir H. Functional outcomes of extended-release methylphenidate and atomoxetine in children: retrospective chart analysis. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2022. [DOI: 10.1186/s41983-022-00532-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Recent guidelines emphasize the importance of functional outcomes in children with attention-deficit/hyperactivity disorder (ADHD). Here, we assess the functional outcomes of the oral delivery system of osmotic-release methylphenidate (OROS-MPH) and atomoxetine (ATX) from the retrospective review of the chart for the last 2 years in the clinic.
Results
Linear mixed-effects models were performed with outcome measures of difference in ADHD symptoms and functional impairment. After 9–12 weeks, OROS-MPH and ATX were statistically equivalent for total Weiss Functional Impairment Rating Scale-Parent Report (WFIRS-P) scores (difference in slope is β = 0.004, p = 1.000). However, OROS-MPH was superior to ATX in terms of school domain (difference in slope is β = 0.139, p < 0.001); ATX was superior in the family domain (slope difference in slope is β = 0.103, p < 0.001). The other domains of functioning both were not responsive to pharmacotherapy and were similar between the two medications.
Conclusions
Optimal management should monitor functional progress in ADHD beyond the core symptoms. As expected, ADHD medications provide a distinct pattern of functional improvement. Pharmacotherapy alone offers promising and reliable outcomes to improve school and family functions in ADHD. Some functional improvements did not respond to the medication; therefore, many of the techniques derived from behavioral interventions should be considered.
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Parhoon K, Moradi A, Alizadeh H, Parhoon H, Sadaphal DP, Coolidge FL. Psychometric properties of the behavior rating inventory of executive function, second edition (BRIEF2) in a sample of children with ADHD in Iran. Child Neuropsychol 2021; 28:427-436. [PMID: 34488557 DOI: 10.1080/09297049.2021.1975669] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This study investigated the psychometric properties of a Persian translation of the Behavior Rating Inventory of Executive Function(BRIEF2) in 253 children with ADHD in Iran (137 boys, 116 girls)ages 8 to 12 years old (M = 10.04; SD = 1.42). The parents of the children completed the Persian BRIEF2 and the Childhood Executive Functioning Inventory (CHEXI). The findings indicated that the Persian version of BRIEF2 had good reliability (internal and test-retest) and satisfactory to good validity (convergent and construct). With respect to its construct validity, confirmatory factor analysis revealed that a three-factor solution was the best model fit for the nine subscales of the BRIEF2, which supports the valid interpretation of the three BRIEF2 indexes in the Persian BRIEF2. These findings support the clinical relevance of the Persian BRIEF in Iranian children with ADHD, as well as the multidimensional nature of executive functions.
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Affiliation(s)
- Kamal Parhoon
- Department of Psychology, Kharazmi University, Tehran, Iran
| | - Alireza Moradi
- Department of Psychology, Kharazmi University, Tehran, Iran
| | | | - Hadi Parhoon
- Department of Psychology, Razi University, Kermanshah, Iran
| | - Dhwani P Sadaphal
- Centre for Cognitive and Brain Sciences, Indian Institute of Technology, Gandhinagar, India
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Taş Torun Y, Işik Taner Y, Güney E, İseri E. Osmotic Release Oral System-Methylphenidate Hydrochloride (OROS-MPH) versus atomoxetine on executive function improvement and clinical effectiveness in ADHD: A randomized controlled trial. APPLIED NEUROPSYCHOLOGY. CHILD 2020; 11:567-578. [PMID: 32757634 DOI: 10.1080/21622965.2020.1796667] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVES The aim of this study to compare the clinic efficacy and effects of osmotic release oral system-methylphenidate and atomoxetine on executive function in children and adolescents with attention deficit hyperactivity disorder by a open-label, prospective, randomized controlled trial. METHODS The study was performed by 95 cases between ages 6 and 12 years who were diagnosed as attention-deficit/hyperactivity disorder (ADHD) and also 40 control individuals. In this study, Conners' Teacher Rating Scale (CTRS) was used in order to evaluate the efficacy of the treatment. Executive functions were assessed by the performance-based neuropsychological tests and ecological behavioral rating scales. Stroop test, cancellation test, and serial digit learning test were applied to performance based neuropsychological tests. Behavior Rating Inventory of Executive Function tests (BRIEFs) were used as behavioral assessment scales. RESULTS Among the ADHD groups, a reduction of over 40% in the CTRS subtest scores used to evaluate the efficacy of the treatment was considered to be an improvement, and no significant difference was found for both drugs. Both Osmotic Release Oral System-Methylphenidate Hydrochloride (OROS-MPH) and atomoxetine (ATX) significantly improved scores in neuropsychological tests. CONCLUSION Atomoxetine and OROS-MPH treatments have shown similar efficacy in clinical recovery and improvement on executive functions. However, disturbances in executive functions observed in children with ADHD are persistent despite treatment, when compared with the control group.
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Affiliation(s)
- Yasemin Taş Torun
- Child and Adolescent Psychiatry Department, Gazi University Medical Faculty, Ankara, Turkey
| | - Yasemen Işik Taner
- Child and Adolescent Psychiatry Department, Gazi University Medical Faculty, Ankara, Turkey
| | - Esra Güney
- Child and Adolescent Psychiatry Department, Gazi University Medical Faculty, Ankara, Turkey
| | - Elvan İseri
- Child and Adolescent Psychiatry Department, Gazi University Medical Faculty, Ankara, Turkey
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Coghill DR, Joseph A, Sikirica V, Kosinski M, Bliss C, Huss M. Correlations Between Clinical Trial Outcomes Based on Symptoms, Functional Impairments, and Quality of Life in Children and Adolescents With ADHD. J Atten Disord 2019; 23:1578-1591. [PMID: 28836895 PMCID: PMC6732817 DOI: 10.1177/1087054717723984] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To assess relationships between treatment-associated changes in measures of ADHD symptoms, functional impairments, and health-related quality of life in children and adolescents with ADHD. METHOD Pearson correlation coefficients were calculated post hoc for changes from baseline to endpoint in outcomes of one randomized, placebo- and active-controlled trial of lisdexamfetamine (osmotic-release methylphenidate reference) and one of guanfacine extended-release (atomoxetine reference). RESULTS Changes in ADHD Rating Scale IV (ADHD-RS-IV) total score generally correlated moderately with changes in Child Health and Illness Profile-Child Edition: Parent Report Form (CHIP-CE:PRF) Achievement and Risk Avoidance ( r ≈ .4), but weakly with Resilience, Satisfaction, and Comfort ( r ≈ .2); and moderately with Weiss Functional Impairment Rating Scale-Parent (WFIRS-P) total score ( r ≈ .5). CHIP-CE PRF Achievement and Risk Avoidance correlated moderately to strongly with WFIRS-P total score ( r ≈ .6). CONCLUSION The ADHD-RS-IV, CHIP-CE:PRF, and WFIRS-P capture distinct but interconnected aspects of treatment response in individuals with ADHD.
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Affiliation(s)
- David R. Coghill
- University of Melbourne, Victoria,
Australia,University of Dundee, UK,David R. Coghill, Departments of Paediatrics and
Psychiatry, Faculty of Medicine, Dentistry, and Health Science, University of Melbourne,
Melbourne, Victoria 3010, Australia.
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Is it possible to determine the level of functional impairment that distinguishes the patients with ADHD from those without ADHD? Qual Life Res 2018; 28:1097-1103. [PMID: 30578453 DOI: 10.1007/s11136-018-2086-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2018] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Functional impairment in attention deficit hyperactivity disorder (ADHD) can occur in many areas such as in family, social activities, and problems related to school and may also persist during adulthood. The Weiss Functional Impairment Rating Scale-Parent Form (WFIRS-P) is designed to measure the functional impairment related to ADHD symptoms. The aim of this study was to determine the level of functional impairment that distinguishes the patients with ADHD who were diagnosed through semi-structured interviews from those without ADHD. METHOD This study consists of ADHD patients who were diagnosed through semi-structured interview aged 5-18 years (n = 250) and same age gender-matched healthy controls (n = 250). A receiver operating characteristic (ROC) curve was constructed by calculating the sensitivity and specificity of the scale cut-off values. RESULTS An area under the curve (AUC) of 0.974 (95% CI 0.956-0.986) was found in this study. For WFIRS-P subdomains, AUC curves, which range from 0.76 to 0.95, were also having strong power for differentiation between groups. The optimal cut-off value for WFIRS-P using Youden's J Index is 0.32. There is no significant gender and age group differences in AUC for either the total or subdomain scores. CONCLUSION Our findings provide that Turkish version of WFIRS-P could be a reliable way of distinguishing the level of functional impairment in ADHD from controls.
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Weiss MD, McBride NM, Craig S, Jensen P. Conceptual review of measuring functional impairment: findings from the Weiss Functional Impairment Rating Scale. EVIDENCE-BASED MENTAL HEALTH 2018; 21:155-164. [PMID: 30314990 PMCID: PMC6241626 DOI: 10.1136/ebmental-2018-300025] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/07/2018] [Accepted: 09/12/2018] [Indexed: 11/24/2022]
Abstract
Objective This is a narrative review of validation and outcome studies using the Weiss Functional Impairment Rating Scale (WFIRS). The objective of the review is to establish a framework for understanding functional impairment and create a definition for functional response and remission. Methods We conducted a literature search via MEDLINE, EBSCO and Google Scholar with no date restrictions and reviewed bibliographies of selected publications. Publications found in languages other than English were translated and clarification obtained from the author(s) if needed. Inclusion criteria were any manuscript that was either a WFIRS psychometric validation study or a clinical trial using the WFIRS as an outcome. There were no exclusion criteria. Results The WFIRS has been validated in multiple cultures, and in clinical, research and control populations. The WFIRS has robust psychometric properties across ages, psychiatric status and informants. Outcome studies show variable improvement, with different response patterns between domains and among different interventions. Conclusion Symptom improvement and remission needs to be complemented with evaluation of functional improvement and remission to obtain a full picture of clinical status over the course of treatment.
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Affiliation(s)
- Margaret D Weiss
- Division of Child and Adolescent Psychiatry, University of Arkansas Medical Sciences, Little Rock, Arkansas, USA
| | - Nicole Michelle McBride
- Division of Child and Adolescent Psychiatry, University of Arkansas Medical Sciences, Little Rock, Arkansas, USA
| | - Stephanie Craig
- Department of Psychology, York University, Toronto, Ontario, Canada.,LaMarsh Centre for Child and Youth Research, York University, Toronto, Ontario, Canada
| | - Peter Jensen
- Division of Child and Adolescent Psychiatry, University of Arkansas Medical Sciences, Little Rock, Arkansas, USA.,The Reach Institute, New York City, New York, USA
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Rubio Morell B, Hernández Expósito S. Differential long-term medication impact on executive function and delay aversion in ADHD. APPLIED NEUROPSYCHOLOGY-CHILD 2017; 8:140-157. [DOI: 10.1080/21622965.2017.1407653] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Belen Rubio Morell
- Child Psychiatry Unit, Hospital Universitario de Canarias, La Laguna, Spain
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Mar AC, Nilsson SRO, Gamallo-Lana B, Lei M, Dourado T, Alsiö J, Saksida LM, Bussey TJ, Robbins TW. MAM-E17 rat model impairments on a novel continuous performance task: effects of potential cognitive enhancing drugs. Psychopharmacology (Berl) 2017; 234:2837-2857. [PMID: 28744563 PMCID: PMC5591806 DOI: 10.1007/s00213-017-4679-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 06/18/2017] [Indexed: 12/02/2022]
Abstract
RATIONALE Impairments in attention and inhibitory control are endophenotypic markers of neuropsychiatric disorders such as schizophrenia and represent key targets for therapeutic management. Robust preclinical models and assays sensitive to clinically relevant treatments are crucial for improving cognitive enhancement strategies. OBJECTIVES We assessed a rodent model with neural and behavioral features relevant to schizophrenia (gestational day 17 methylazoxymethanol acetate treatment (MAM-E17)) on a novel test of attention and executive function, and examined the impact of putative nootropic drugs. METHODS MAM-E17 and sham control rats were trained on a novel touchscreen-based rodent continuous performance test (rCPT) designed to closely mimic the human CPT paradigm. Performance following acute, systemic treatment with an array of pharmacological compounds was investigated. RESULTS Two cohorts of MAM-E17 rats were impaired on rCPT performance including deficits in sensitivity (d') and increased false alarm rates (FARs). Sulpiride (0-30 mg/kg) dose-dependently reduced elevated FAR in MAM-E17 rats whereas low-dose modafinil (8 mg/kg) only improved d' in sham controls. ABT-594 (5.9-19.4 μg/kg) and modafinil (64 mg/kg) showed expected stimulant-like effects, while LSN2463359 (5 mg/kg), RO493858 (10 mg/kg), atomoxetine (0.3-1 mg/kg), and sulpiride (30 mg/kg) showed expected suppressant effects on performance across all animals. Donepezil (0.1-1 mg/kg) showed near-significant enhancements in d', and EVP-6124 (0.3-3 mg/kg) exerted no effects in the rCPT paradigm. CONCLUSION The MAM-E17 model exhibits robust and replicable impairments in rCPT performance that resemble attention and inhibitory control deficits seen in schizophrenia. Pharmacological profiles were highly consistent with known drug effects on cognition in preclinical and clinical studies. The rCPT is a sensitive and reliable tool with high translational potential for understanding the etiology and treatment of disorders affecting attention and executive dysfunction.
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Affiliation(s)
- Adam C Mar
- Neuroscience Institute, New York University Medical Center, New York, NY, 10016, USA.
- Department of Neuroscience and Physiology, New York University Medical Center, New York, NY, USA.
- Department of Psychology, University of Cambridge, Cambridge, UK.
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK.
| | - Simon R O Nilsson
- Neuroscience Institute, New York University Medical Center, New York, NY, 10016, USA
- Department of Neuroscience and Physiology, New York University Medical Center, New York, NY, USA
- Department of Psychology, University of Cambridge, Cambridge, UK
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
| | - Begoña Gamallo-Lana
- Neuroscience Institute, New York University Medical Center, New York, NY, 10016, USA
- Department of Neuroscience and Physiology, New York University Medical Center, New York, NY, USA
- Department of Psychology, University of Cambridge, Cambridge, UK
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
| | - Ming Lei
- Department of Psychology, University of Cambridge, Cambridge, UK
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
- Department of Health Industry Management, Beijing International Studies University, 1 Dingfuzhuang Nanli, Beijing, China
| | - Theda Dourado
- Department of Psychology, University of Cambridge, Cambridge, UK
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
| | - Johan Alsiö
- Department of Psychology, University of Cambridge, Cambridge, UK
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
- Department of Neuroscience, Unit of Functional Neurobiology, University of Uppsala, Uppsala, Sweden
| | - Lisa M Saksida
- Department of Psychology, University of Cambridge, Cambridge, UK
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
- Molecular Medicine Research Group, Robarts Research Institute, Western University, London, ON, Canada
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- The Brain and Mind Institute, Western University, London, ON, Canada
| | - Timothy J Bussey
- Department of Psychology, University of Cambridge, Cambridge, UK
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
- Molecular Medicine Research Group, Robarts Research Institute, Western University, London, ON, Canada
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- The Brain and Mind Institute, Western University, London, ON, Canada
| | - Trevor W Robbins
- Department of Psychology, University of Cambridge, Cambridge, UK
- MRC and Wellcome Trust Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
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Thompson T, Lloyd A, Joseph A, Weiss M. The Weiss Functional Impairment Rating Scale-Parent Form for assessing ADHD: evaluating diagnostic accuracy and determining optimal thresholds using ROC analysis. Qual Life Res 2017; 26:1879-1885. [PMID: 28220338 PMCID: PMC5486894 DOI: 10.1007/s11136-017-1514-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2017] [Indexed: 11/30/2022]
Abstract
Purpose The Weiss Functional Impairment Rating Scale-Parent Form (WFIRS-P) is a 50-item scale that assesses functional impairment on six clinically relevant domains typically affected in attention-deficit/hyperactivity disorder (ADHD). As functional impairment is central to ADHD, the WFIRS-P offers potential as a tool for assessing functional impairment in ADHD. These analyses were designed to examine the overall performance of WFIRS-P in differentiating ADHD and non-ADHD cases using receiver operating characteristics (ROC) analysis. This is the first attempt to empirically determine the level of functional impairment that differentiates ADHD children from normal controls. Methods This observational study comprised 5–19-year-olds with physician-diagnosed ADHD (n = 476) and non-ADHD controls (n = 202). ROC analysis evaluated the ability of WFIRS-P to discriminate between ADHD and non-ADHD, and identified a WFIRS-P cut-off score that optimises correct classification. Data were analysed for the complete sample, for males versus females and for participants in two age groups (5–12 versus 13–19 years). Results Area under the curve (AUC) was 0.91 (95% confidence interval 0.88–0.93) for the overall WFIRS-P score, suggesting highly accurate classification of ADHD distinct from non-ADHD. Sensitivity (0.83) and specificity (0.85) were maximal for a mean overall WFIRS-P score of 0.65, suggesting that this is an appropriate threshold for differentiation. DeLong’s test found no significant differences in AUCs for males versus females or 5–12 versus 13–19 years, suggesting that WFIRS-P is an accurate classifier of ADHD across gender and age. Conclusions When assessing function, WFIRS-P appears to provide a simple and effective basis for differentiating between individuals with/without ADHD in terms of functional impairment. Classification Disease-specific applications of QOL research.
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Affiliation(s)
- Trevor Thompson
- Faculty of Education and Health, University of Greenwich, London, SE9 2UG, UK
| | - Andrew Lloyd
- Bladon Associates Ltd., 3 Kings Meadow, Oxford, OX2 0DP, UK.
| | | | - Margaret Weiss
- Department of Psychiatry, Faculty of Medicine, University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC, V6T 1Z4, Canada
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Gayleard JL, Mychailyszyn MP. Atomoxetine treatment for children and adolescents with Attention-Deficit/Hyperactivity Disorder (ADHD): a comprehensive meta-analysis of outcomes on parent-rated core symptomatology. ACTA ACUST UNITED AC 2017; 9:149-160. [PMID: 28110366 DOI: 10.1007/s12402-017-0216-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 08/08/2015] [Indexed: 11/24/2022]
Abstract
Attention-Deficit/Hyperactivity Disorder (ADHD) impacts a significant number of children and adolescents and often leads to deleterious functional impairment. Psychostimulant medication has historically been the first line of pharmacological intervention, though recent years have seen greater attention paid to non-stimulant alternatives. The objective of the present study was to conduct the most comprehensive meta-analysis to date evaluating the efficacy of atomoxetine in reducing core symptomatology of ADHD according to parent report. Selection criteria were applied, and studies were located by searching electronic databases, review of reference sections, and contact with expert researchers; article searching began on 10/01/2013, and the final search was conducted on 09/01/2014. A total of 42 studies met inclusion criteria-33 with control groups and 9 without-for a total sample of 8398 individuals. For those receiving atomoxetine, the summary pre-post (e.g., standardized mean gain) effect size estimate was 1.37 (95% CI [1.24, 1.51], p < .001); atomoxetine was found to statistically significantly outperform control conditions overall (Z = 4.07, p < .001), though results differed by the type of control group; for instance, when comparing atomoxetine to alternative medications as controls, significant differences were no longer present. The non-stimulant atomoxetine led to significant improvement in core ADHD symptomatology and should be considered as a viable pharmacological treatment option for ADHD.
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Affiliation(s)
- Jessica L Gayleard
- Department of Psychology, Towson University, 8000 York Road, Towson, MD, 21252, USA
| | - Matthew P Mychailyszyn
- Department of Psychology, Towson University, 8000 York Road, Towson, MD, 21252, USA. .,Division of Psychology and Neuropsychology, Mt. Washington Pediatric Hospital, Baltimore, MD, USA.
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Pharmacokinetic Profile and Palatability of Atomoxetine Oral Solution in Healthy Japanese Male Adults. Clin Drug Investig 2017; 36:903-911. [PMID: 27444039 PMCID: PMC5073111 DOI: 10.1007/s40261-016-0430-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2022]
Abstract
BACKGROUND AND OBJECTIVES There is a clinical need for a liquid formulation of atomoxetine. We assessed the safety and bioequivalence of an atomoxetine oral solution. METHODS This was an open-label, randomized, crossover study. Healthy adult male Japanese subjects (n = 42) with a cytochrome P450 2D6 extensive (including intermediate and ultrarapid) metabolizer genotype were administered atomoxetine 50 mg as oral solution and capsules once each, with a washout period >5 days between doses. Blood samples were used to analyze pharmacokinetic parameters, particularly maximum observed drug concentration (C max) and area under the concentration vs. time curve from time zero to the last time point with a measurable concentration (AUC0-last). Bioequivalence was concluded if the 90 % confidence interval of the ratio of geometric means between formulations for both C max and AUC0-last were within the interval of 0.8-1.25. Safety assessments included determination of adverse events. Taste was evaluated via a five-item questionnaire immediately and 10 min after taking atomoxetine oral solution. RESULTS Forty subjects completed the study. Plasma concentration-time profiles of atomoxetine oral solution and capsules were similar, and the statistical analysis of systemic exposure showed that the two formulations were bioequivalent. Adverse events were mild and similar in type and frequency between the formulations. For taste acceptability, only 7.1 % of subjects responded that the oral solution would be difficult to take every day. CONCLUSION Atomoxetine oral solution is bioequivalent to atomoxetine capsules and potentially fulfills the need for an oral solution atomoxetine formulation that will facilitate treatment of children with attention-deficit hyperactivity disorder.
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Ni HC, Lin YJ, Gau SSF, Huang HC, Yang LK. An Open-Label, Randomized Trial of Methylphenidate and Atomoxetine Treatment in Adults With ADHD. J Atten Disord 2017; 21:27-39. [PMID: 23475825 DOI: 10.1177/1087054713476549] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To directly compare the efficacy of methylphenidate and atomoxetine in improving symptoms, social functions, and quality of life among adults with ADHD. METHOD This was an 8-to-10-week, open-label, head-to-head, randomized clinical trial with two treatment arms: immediate-release methylphenidate (IR-methylphenidate; n = 31) and atomoxetine once daily ( n = 32). The outcome measures included ADHD symptom severity, quality of life, and functional impairments. RESULTS We found a significant reduction in overall ADHD symptoms and improvement in social functions and quality of life for both groups at Weeks 4 to 5 and Weeks 8 to 10. There was no significant difference in the slope of improvements over time except that atomoxetine was superior to IR-methylphenidate in reducing hyperactive/impulsive symptoms at Weeks 4 to 5. There was no significant group difference in the rates of adverse effects. CONCLUSION Both IR-methylphenidate and atomoxetine are well tolerated and efficacious in ethnic Chinese adults with ADHD.
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Affiliation(s)
- Hsing-Chang Ni
- 1 National Taiwan University Hospital, Taipei, Taiwan
- 2 National Taiwan University College of Medicine, Taipei, Taiwan
- 3 Chang Gung Memorial Hospital at Linkou, Taiwan
| | - Yu-Ju Lin
- 1 National Taiwan University Hospital, Taipei, Taiwan
- 2 National Taiwan University College of Medicine, Taipei, Taiwan
- 4 Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Susan Shur-Fen Gau
- 1 National Taiwan University Hospital, Taipei, Taiwan
- 2 National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hui-Chun Huang
- 5 National Cheng Kung University Hospital, Tainan, Taiwan
| | - Li-Kuang Yang
- 1 National Taiwan University Hospital, Taipei, Taiwan
- 2 National Taiwan University College of Medicine, Taipei, Taiwan
- 6 Beitou Armed Forces Hospital, Taipei, Taiwan
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Usami M. Functional consequences of attention-deficit hyperactivity disorder on children and their families. Psychiatry Clin Neurosci 2016; 70:303-17. [PMID: 27061213 DOI: 10.1111/pcn.12393] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/05/2016] [Indexed: 12/12/2022]
Abstract
Attention-deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder with core symptoms that include hyperactivity, impulsiveness, and inattention, and it is the most common psychiatric disorder among children and adolescents. These core symptoms are continuously recognized throughout the day from childhood to adulthood. Furthermore, children with ADHD from childhood to adulthood might also have various comorbid psychiatric disorders. Recently, bipolar disorder and disruptive mood dysregulation disorder, a new clinical issue, have been discussed as comorbid disorders or differential disorders associated with ADHD. Furthermore, comorbid disorders of ADHD are related to quality of life and family burden. Children with ADHD have poorer long-term outcomes than controls with respect to: academic achievement and attainment, occupational rank and job performance, risky sexual practices and early unwanted pregnancies, substance use, relationship difficulties, marital problems, traffic violations, and car accidents. Irritability of children with ADHD has been a key symptom that clinicians and researchers have used to evaluate the developmental condition of children with ADHD. ADHD is sometimes a chronic disorder that occurs over a long period, increasing the family burden of these children (including health-care costs), which will increase with aging for unremitted children with ADHD. Therefore, clinicians should evaluate not only the mental condition of the child but also the family burden. Children with ADHD should be treated during childhood to reduce their clinical symptoms and family burden.
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Affiliation(s)
- Masahide Usami
- Department of Child and Adolescent Psychiatry, Kohnodai Hospital, National Center for Global Health and Medicine, Chiba, Japan
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15
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Newcorn JH, Harpin V, Huss M, Lyne A, Sikirica V, Johnson M, Ramos-Quiroga JA, van Stralen J, Dutray B, Sreckovic S, Bloomfield R, Robertson B. Extended-release guanfacine hydrochloride in 6-17-year olds with ADHD: a randomised-withdrawal maintenance of efficacy study. J Child Psychol Psychiatry 2016; 57:717-28. [PMID: 26871297 DOI: 10.1111/jcpp.12492] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/02/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND Extended-release guanfacine hydrochloride (GXR), a selective α2A-adrenergic agonist, is a nonstimulant medication for attention-deficit/hyperactivity disorder (ADHD). This phase 3, double-blind, placebo-controlled, randomised-withdrawal study evaluated the long-term maintenance of GXR efficacy in children/adolescents with ADHD. METHODS Children/adolescents (6-17 years) with ADHD received open-label GXR (1-7 mg/day). After 13 weeks, responders were randomised to GXR or placebo in the 26-week, double-blind, randomised-withdrawal phase (RWP). The primary endpoint was the percentage of treatment failure (≥50% increase in ADHD Rating Scale version IV total score and ≥2-point increase in Clinical Global Impression-Severity compared with RWP baseline, at two consecutive visits). The key secondary endpoint was time to treatment failure (TTF). TRIAL REGISTRATION ClinicalTrials.gov identifier NCT01081145; EudraCT 2009-018161-12. RESULTS A total of 528 participants enrolled; 316 (59.8%) entered the RWP. Treatment failure occurred in 49.3% of the GXR and 64.9% of the placebo group (p = 0.006). TTF was significantly longer in GXR versus placebo (p = 0.003). GXR was well tolerated. CONCLUSIONS Guanfacine hydrochloride demonstrated long-term maintenance of efficacy compared with placebo in children/adolescents with ADHD. Implications of the placebo substitution design and findings with different ADHD medications are discussed.
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Affiliation(s)
| | - Valerie Harpin
- Ryegate Children's Centre, Sheffield NHS Foundation Trust, Sheffield, UK
| | - Michael Huss
- Johannes Gutenberg-University Mainz, Mainz, Germany
| | | | | | - Mats Johnson
- Gillberg Neuropsychiatry Centre, University of Gothenburg, Gothenburg, Sweden
| | - Josep Antoni Ramos-Quiroga
- Department of Psychiatry, CIBERSAM, Hospital Universitari Vall d'Hebron, Barcelona, Spain.,Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
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16
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Adamo N, Seth S, Coghill D. Pharmacological treatment of attention-deficit/hyperactivity disorder: assessing outcomes. Expert Rev Clin Pharmacol 2016; 8:383-97. [PMID: 26109097 DOI: 10.1586/17512433.2015.1050379] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A substantial body of evidence has supported the efficacy and safety of pharmacological treatment available for attention deficit/hyperactivity disorder (ADHD). There is increasing agreement that the important treatment outcomes for ADHD extend beyond improvement in core symptoms and that a more generic (or global) concept of remission is the overarching goal of treatment. However, there is no consensus on the best definition of remission or on how best to conceptualize and measure broader treatment outcomes. In this article, we provide an overview of the various methods and approaches to measuring treatment outcomes for ADHD with respect to symptoms, impairment, quality of life, adverse events and safety as well as cognition. We will describe the ways that they may be used within routine clinical practice and think ahead about the kinds of studies that are required to move the field forward.
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Affiliation(s)
- Nicoletta Adamo
- National Health Service Tayside, Child and Adolescent Mental Health Service, Dundee, UK
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Kulendran M, Wingfield LR, Sugden C, Darzi A, Vlaev I. Pharmacological manipulation of impulsivity: A randomized controlled trial. PERSONALITY AND INDIVIDUAL DIFFERENCES 2016. [DOI: 10.1016/j.paid.2015.11.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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18
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Functional outcomes from a head-to-head, randomized, double-blind trial of lisdexamfetamine dimesylate and atomoxetine in children and adolescents with attention-deficit/hyperactivity disorder and an inadequate response to methylphenidate. Eur Child Adolesc Psychiatry 2016; 25:141-9. [PMID: 25999292 PMCID: PMC4735245 DOI: 10.1007/s00787-015-0718-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 04/02/2015] [Indexed: 10/31/2022]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is associated with functional impairments in multiple domains of patients' lives. A secondary objective of this randomized, active-controlled, head-to-head, double-blind, dose-optimized clinical trial was to compare the effects of lisdexamfetamine dimesylate (LDX) and atomoxetine (ATX) on functional impairment in children and adolescents with ADHD. Patients aged 6-17 years with an ADHD Rating Scale IV total score ≥ 28 and an inadequate response to methylphenidate treatment (judged by investigators) were randomized (1:1) to once-daily LDX or ATX for 9 weeks. Parents/guardians completed the Weiss Functional Impairment Rating Scale-Parent Report (WFIRS-P) at baseline and at week 9 or early termination. p values were nominal and not corrected for multiple comparisons. Of 267 randomized patients, 200 completed the study (LDX 99, ATX 101). At baseline, mean WFIRS-P total score in the LDX group was 0.95 [standard deviation (SD) 0.474; 95% confidence interval (CI) 0.87, 1.03] and in the ATX group was 0.91 (0.513; 0.82, 1.00). Scores in all WFIRS-P domains improved from baseline to endpoint in both groups, with least-squares mean changes in total score of -0.35 (95% CI -0.42, -0.29) for LDX and -0.27 (-0.33, -0.20) for ATX. The difference between LDX and ATX was statistically significant (p < 0.05) for the Learning and School (effect size of LDX vs ATX, 0.43) and Social Activities (0.34) domains and for total score (0.27). Both treatments reduced functional impairment in children and adolescents with ADHD; LDX was statistically significantly more effective than ATX in two of six domains and in total score.
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Wilens TE, Robertson B, Sikirica V, Harper L, Young JL, Bloomfield R, Lyne A, Rynkowski G, Cutler AJ. A Randomized, Placebo-Controlled Trial of Guanfacine Extended Release in Adolescents With Attention-Deficit/Hyperactivity Disorder. J Am Acad Child Adolesc Psychiatry 2015; 54:916-25.e2. [PMID: 26506582 DOI: 10.1016/j.jaac.2015.08.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 07/24/2015] [Accepted: 09/09/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Despite the continuity of attention-deficit/hyperactivity disorder (ADHD) into adolescence, little is known regarding use of nonstimulants to treat ADHD in adolescents. This phase 3 trial evaluated the safety and efficacy of guanfacine extended release (GXR) in adolescents with ADHD. METHOD This 13-week, multicenter, randomized, double-blind, placebo-controlled trial evaluated once-daily GXR (1-7 mg per day) in adolescents with ADHD aged 13 to 17 years. The primary endpoint was the change from baseline in the ADHD Rating Scale-IV (ADHD-RS-IV) total score; key secondary endpoints included scores from the Clinical Global Impressions-Severity of Illness (CGI-S), and Learning and School domain and Family domain scores from the Weiss Functional Impairment Rating Scale-Parent Report (WFIRS-P) at week 13. RESULTS A total of 314 participants were randomized (GXR, n = 157; placebo, n = 157). The majority of participants received optimal doses of 3, 4, 5, or 6 mg (30 [22.9%], 26 [19.8%], 27 [20.6%], or 24 [18.3%] participants, respectively), with 46.5% of participants receiving an optimal dose above the currently approved maximum dose limit of 4 mg. Participants receiving GXR showed improvement in ADHD-RS-IV total score compared with placebo (least-squares mean score change, -24.55 [GXR] versus -18.53 [placebo]; effect size, 0.52; p <.001). More participants on GXR also showed significant improvement in CGI-S scores compared with placebo (50.6% versus 36.1%; p = .010). There was no statistically significant difference between treatments at week 13 in the 2 WFIRS-P domains. Most treatment-emergent adverse events were mild to moderate, with sedation-related events reported most commonly. CONCLUSION GXR was associated with statistically significant improvements in ADHD symptoms in adolescents. GXR was well tolerated, with no new safety signals reported. CLINICAL TRIAL REGISTRATION INFORMATION Dose-Optimization in Adolescents Aged 13-17 Diagnosed With Attention-Deficit/Hyperactivity Disorder (ADHD) Using Extended-Release Guanfacine HCl; http://ClinicalTrials.gov/; NCT01081132.
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Affiliation(s)
| | | | - Vanja Sikirica
- Former employees of Shire, Wayne, PA; GlaxoSmithKline, King of Prussia, PA
| | | | - Joel L Young
- Rochester Center for Behavioral Medicine, Rochester Hills, MI
| | - Ralph Bloomfield
- Former employees of Shire, Wayne, PA; AstraZeneca, Cambridge, UK
| | - Andrew Lyne
- Former employees of Shire, Wayne, PA; Independent statistician, Maidenhead, UK
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20
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Usami M, Iwadare Y, Watanabe K, Ushijima H, Kodaira M, Okada T, Sasayama D, Sugiyama N, Saito K. A case-control study of the difficulties in daily functioning experienced by children with depressive disorder. J Affect Disord 2015; 179:167-74. [PMID: 25863914 DOI: 10.1016/j.jad.2015.03.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Accepted: 03/12/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE The parent-assessed children-with-difficulties questionnaire (Questionnaire-Children with Difficulties; QCD) is designed to evaluate a child׳s difficulties in functioning during specific periods of the day. This study aimed to use the QCD to evaluate the difficulties in daily functioning experienced by children with depressive disorders. METHODS A case-control design was used. The cases comprised 90 junior high school students with depressive disorder, whereas a community sample of 363 junior high school students was enrolled as controls. Behaviors were assessed using the QCD, Depression Self-Rating Scale (DSRS), Tokyo Autistic Behavior Scale (TABS), attention deficit hyperactivity disorder-rating scale (ADHD-RS), and Oppositional Defiant Behavior Inventory (ODBI). We then analyzed the effects of sex and diagnosis on the QCD scores as well as the correlation coefficients between the QCD and the other questionnaires. RESULTS We included 90 cases (33 boys, 57 girls) with depressive disorders and 363 controls (180 boys, 183 girls). The QCD scores for the children with depressive disorders were significantly lower compared with those from the community sample (P<0.001). The morning, school-time, and night subscores of the QCD were lower for the children with both depressive disorders and truancy problems than for those with depressive disorders alone (P<0.001). Significant correlations were observed between the following: the night QCD subscore and the DSRS scores among boys, the morning QCD subscore and ADHD-RS inattention scores for all groups, and the evening QCD subscore and the TABS score. CONCLUSIONS Parents reported that children with depressive disorders experienced greater difficulties in completing basic daily activities compared with community controls. These difficulties were dependent on sex, symptoms, and the time of day. The use of QCD to assess children with depressive disorders enables clinicians to clarify the time periods at which the children face difficulties.
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Affiliation(s)
- Masahide Usami
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, 1-7-1 Kohnodai, Ichikawa, Chiba 272-8516, Japan.
| | - Yoshitaka Iwadare
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, 1-7-1 Kohnodai, Ichikawa, Chiba 272-8516, Japan
| | - Kyota Watanabe
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, 1-7-1 Kohnodai, Ichikawa, Chiba 272-8516, Japan
| | - Hirokage Ushijima
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, 1-7-1 Kohnodai, Ichikawa, Chiba 272-8516, Japan
| | - Masaki Kodaira
- Department of Child and Adolescent Mental Health, Imperial Gift Foundation, Aiiku Maternal and Child Health Center, Aiiku Clinic, Minato-ku, Japan
| | - Takashi Okada
- Department of Child and Adolescent Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Daimei Sasayama
- Department of Neuropsychiatry, Shinshu University School of Medicine, Matsumoto, Japan
| | - Nobuhiro Sugiyama
- Department of Neuropsychiatry, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazuhiko Saito
- Department of Child and Adolescent Mental Health, Imperial Gift Foundation, Aiiku Maternal and Child Health Center, Aiiku Clinic, Minato-ku, Japan
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Wehmeier PM, Kipp L, Banaschewski T, Dittmann RW, Schacht A. Does Comorbid Disruptive Behavior Modify the Effects of Atomoxetine on ADHD Symptoms as Measured by a Continuous Performance Test and a Motion Tracking Device? J Atten Disord 2015; 19:591-602. [PMID: 22930789 DOI: 10.1177/1087054712456739] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To compare the reduction of ADHD symptoms under atomoxetine in patients with and without comorbid oppositional defiant disorder (ODD) or conduct disorder (CD) using a computer-based continuous performance test (cb-CPT) combined with an infrared motion tracking (MT) device. METHOD Secondary analysis of a placebo-controlled study in ADHD patients (6-12 years old) treated with atomoxetine (target dose: 1.2 mg/kg per day). Cb-CPT/MT scores were analyzed using ANCOVA (last observation carried forward [LOCF]). RESULTS The data (N = 125) suggested a more pronounced atomoxetine effect in the group with comorbid ODD/CD as measured by all cb-CPT/MT parameters except for "normalized variation of reaction time" (nVRT). CONCLUSION The results showed that atomoxetine reduced ADHD severity as measured by cb-CPT and MT parameters regardless of whether comorbid ODD/CD was present. The treatment effect of atomoxetine on hyperactivity appears to be more pronounced in the subgroup of patients with comorbid ODD/CD than in the subgroup without this comorbidity.
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Affiliation(s)
- Peter M Wehmeier
- Department of Child and Adolescent Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Germany Vitos Hospital for Psychiatry and Psychotherapy, Weilmuenster, Germany
| | - Laura Kipp
- Department of Child and Adolescent Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Germany
| | - Tobias Banaschewski
- Department of Child and Adolescent Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Germany
| | - Ralf W Dittmann
- Eli Lilly Endowed Chair of Pediatric Psychopharmacology at the Department of Child and Adolescent Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Germany
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22
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Savill NC, Buitelaar JK, Anand E, Day KA, Treuer T, Upadhyaya HP, Coghill D. The efficacy of atomoxetine for the treatment of children and adolescents with attention-deficit/hyperactivity disorder: a comprehensive review of over a decade of clinical research. CNS Drugs 2015; 29:131-51. [PMID: 25698145 DOI: 10.1007/s40263-014-0224-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Atomoxetine was first licensed to treat attention-deficit/hyperactivity disorder (ADHD) in children and adolescents in the US in 2002. The aim of this paper is to comprehensively review subsequent publications addressing the efficacy of atomoxetine in 6- to 18-year-olds with ADHD. We identified 125 eligible papers using a predefined search strategy. Overall, these papers demonstrate that atomoxetine is an effective treatment for the core ADHD symptoms (effect sizes 0.6-1.3, vs. placebo, at 6-18 weeks), and improves functional outcomes and quality of life, in various pediatric populations with ADHD (i.e., males/females, patients with co-morbidities, children/adolescents, and with/without prior exposure to other ADHD medications). Initial responses to atomoxetine may be apparent within 1 week of treatment, but can take longer (median 23 days in a 6-week study; n=72). Responses often build gradually over time, and may not be robust until after 3 months. A pooled analysis of six randomized placebo-controlled trials (n=618) indicated that responses at 4 weeks may predict response at 6-9 weeks, although another pooled analysis of open-label data (n=338) suggests that the probability of a robust response to atomoxetine [≥40% decrease in ADHD-Rating Scale (ADHD-RS) scores] may continue to increase beyond 6-9 weeks. Atomoxetine may demonstrate similar efficacy to methylphenidate, particularly immediate-release methylphenidate, although randomized controlled trials are generally limited by short durations (3-12 weeks). In conclusion, notwithstanding these positive findings, before initiating treatment with atomoxetine, it is important that the clinician sets appropriate expectations for the patient and their family with regard to the likelihood of a gradual response, which often builds over time.
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Affiliation(s)
- Nicola C Savill
- Eli Lilly and Co., Lilly House, Priestley Road, Basingstoke, Hampshire, RG24 9NL, UK,
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Rostain A, Jensen PS, Connor DF, Miesle LM, Faraone SV. Toward quality care in ADHD: defining the goals of treatment. J Atten Disord 2015; 19:99-117. [PMID: 23422237 DOI: 10.1177/1087054712473835] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Therapeutic goals for chronic mental disorders like major depressive disorder (MDD) and schizophrenia have evolved in parallel with the growing medical knowledge about the course and treatment of these disorders. Although the knowledge base regarding the clinical course of ADHD, a chronic psychiatric disorder, has evolved beyond symptomatic improvement and short-term treatment response, long-term goals, such as functional remission, have not yet been clearly defined. METHOD A PubMed literature search was conducted to investigate the therapeutic goals of pharmacologic treatment referenced in the published literature from January 1998 through February 2010 using the following commonly used ADHD treatments as keywords: amphetamine, methylphenidate, atomoxetine, lisdexamfetamine, guanfacine, and clonidine. This search was then combined with an additional search that included the following outcome keywords: remission, relapse, remit, response, normal, normalization, recovery, and effectiveness. RESULTS Our search identified 102 publications. The majority (88.2% [90/102]) of these contained predefined criteria for treatment response. Predefined criteria for normalization and remission and/or relapse were presented in 4.9% (5/102), 12.7% (13/102), and 3.9% (4/102) of publications, respectively. There was a lack of consistency between the instruments used to measure outcomes as well as the criteria used to define treatment response, normalization, and remission as well as relapse. CONCLUSION The therapeutic goals in treating ADHD should address optimal treatment outcomes that go beyond modest reductions of ADHD symptoms to include syndromatic, symptomatic, and functional remission. Future work should focus on reliable and valid tools to measure these outcomes in the clinical trial setting.
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Affiliation(s)
| | - Peter S Jensen
- The REACH Institute, New York, NY, USA Mayo Clinic, Rochester, MN, USA
| | - Daniel F Connor
- University of Connecticut School of Medicine, Farmington, USA
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Does Guanfacine Extended Release Impact Functional Impairment in Children with Attention-Deficit/Hyperactivity Disorder? Results from a Randomized Controlled Trial. CNS Drugs 2015; 29:953-62. [PMID: 26547425 PMCID: PMC4653245 DOI: 10.1007/s40263-015-0291-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND In clinical trials of medications to treat attention-deficit/hyperactivity disorder (ADHD) in children, effects on functional impairment have been less well-studied than changes in ADHD symptoms. OBJECTIVE Data regarding functional impairment were analyzed from a multicenter, double-blind, placebo-controlled study of guanfacine extended release (GXR) in children with ADHD, using the Weiss Functional Impairment Rating Scale-Parent Report (WFIRS-P). The correspondence of changes in WFIRS-P scores with symptomatic and global response to GXR treatment was also examined, with treatment response defined by scores on both the ADHD Rating Scale IV (ADHD-RS-IV) and the Clinical Global Impressions-Improvement Scale (CGI-I). METHODS In this 8-week, double-blind, placebo-controlled, dose optimization study at 47 sites across the USA and Canada, children aged 6-12 years with a diagnosis of ADHD [Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision criteria, and an ADHD-RS-IV score ≥28 and CGI-Severity of Illness Scale score ≥4 at baseline], were randomized 1:1:1 into three groups: GXR AM [GXR (1-4 mg/day) in the morning, placebo in the evening], GXR PM [placebo in the morning, GXR (1-4 mg/day) in the evening], or twice-daily placebo. Parents rated their children on the WFIRS-P at screening, baseline, the end of dose optimization, and at the final on-treatment assessment. RESULTS The efficacy population was composed of 333 subjects (GXR AM: n = 107; GXR PM: n = 114; placebo: n = 112). At the final on-treatment assessment, there were significant improvements from baseline in the placebo-adjusted difference in least-squares (LS) mean (95 % confidence interval) WFIRS-P Total scores for both GXR treatment groups combined [GXR all-active: -0.16 (-0.25, -0.07), effect size (ES) = 0.448, P <0.001] and separately [GXR AM: -0.15 (-0.26, -0.05), ES = 0.417, P = 0.004; GXR PM: -0.18 (-0.28, -0.07), ES = 0.478, P = 0.001]. Significant improvements in WFIRS-P domain scores for Family, Learning and School (including Academic Performance and Behavior in School), Social, and Risky Behavior were found for both GXR cohorts compared with placebo. However, the Life Skills and Self-Concept domain scores of the WFIRS-P did not improve with GXR treatment. Post hoc stratification by responder status revealed that significant (P <0.001) improvements in WFIRS-P Total and all domain scores were associated with symptomatic treatment response in the GXR all-active group. CONCLUSIONS GXR treatment in children with ADHD was associated with reductions in WFIRS-P functional impairment scores compared with placebo, regardless of time of GXR administration. Changes in WFIRS-P scores were congruent with clinical response, as determined by both ADHD symptom reduction and CGI-I scores. CLINICALTRIALS. GOV IDENTIFIER NCT00997984.
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The Relationship Between Symptomatic and Functional Changes of Korean Children and Adolescents With Attention-Deficit/Hyperactivity Disorder Treated With Osmotic-Controlled Release Oral Delivery System–Methylphenidate. Clin Neuropharmacol 2015; 38:30-5. [DOI: 10.1097/wnf.0000000000000064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hervas A, Huss M, Johnson M, McNicholas F, van Stralen J, Sreckovic S, Lyne A, Bloomfield R, Sikirica V, Robertson B. Efficacy and safety of extended-release guanfacine hydrochloride in children and adolescents with attention-deficit/hyperactivity disorder: a randomized, controlled, phase III trial. Eur Neuropsychopharmacol 2014; 24:1861-72. [PMID: 25453486 DOI: 10.1016/j.euroneuro.2014.09.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 08/20/2014] [Accepted: 09/21/2014] [Indexed: 11/18/2022]
Abstract
Guanfacine extended-release (GXR), a selective α2A-adrenergic agonist, is a non-stimulant treatment for attention-deficit/hyperactivity disorder (ADHD). This study assessed the efficacy (symptoms and function) and safety of dose-optimized GXR compared with placebo in children and adolescents with ADHD. An atomoxetine (ATX) arm was included to provide reference data against placebo. Patients (6-17 years) were randomized at baseline to dose-optimized GXR (0.05-0.12mg/kg/day - 6-12 years: 1-4mg/day; 13-17 years: 1-7mg/day), ATX (10-100mg/day) or placebo for 4 or 7 weeks. The primary efficacy measure was change from baseline in ADHD Rating Scale version IV (ADHD-RS-IV). Key secondary measures were Clinical Global Impression-Improvement (CGI-I) and the Weiss Functional Impairment Rating Scale-Parent Report (WFIRS-P; learning and school, and family domains). Safety assessments included treatment-emergent adverse events (TEAEs), electrocardiograms and vital signs. A total of 272 (80.5%) patients from Europe, the USA and Canada completed the study. Significant differences were observed in least squares mean change from baseline in ADHD-RS-IV total score (placebo-adjusted differences) (GXR: [-8.9, p<0.001]; ATX: [-3.8, p<0.05]), the difference from placebo in the percentage of patients showing improvement (1 ['very much improved'] or 2 ['much improved']) for CGI-I (GXR: [23.7, p<0.001]; ATX: [12.1, p<0.05]), WFIRS-P learning and school domain (GXR: [-0.22, p<0.01]; ATX: [-0.16, p<0.05]) and WFIRS-P family domain (GXR: [-0.21, p<0.01]; ATX: [-0.09, p=0.242]). Most common TEAEs for GXR were somnolence, headache and fatigue; 70.1% of GXR subjects reported mild-to-moderate TEAEs. GXR was effective and well tolerated in children and adolescents with ADHD.
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Affiliation(s)
- Amaia Hervas
- Child and Adolescent Mental Health Unit, University Hospital Mútua de Terrassa, UETD, Hospital Sant Joan de Deu, Barcelona, Spain.
| | - Michael Huss
- Child and Adolescent Psychiatry, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Mats Johnson
- The Gillberg Neuropsychiatry Centre at the Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Fiona McNicholas
- Department of Child and Adolescent Psychiatry, Our Lady׳s Children׳s Hospital, Dublin, Ireland
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Tarakçıoğlu MC, Memik NÇ, Olgun NN, Aydemir Ö, Weiss MD. Turkish validity and reliability study of the Weiss Functional Impairment Rating Scale-Parent Report. ACTA ACUST UNITED AC 2014; 7:129-39. [PMID: 25428590 DOI: 10.1007/s12402-014-0158-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 11/18/2014] [Indexed: 11/28/2022]
Abstract
Attention deficit hyperactivity disorder (ADHD) is seen frequently in childhood and leads to marked impairment in functioning. There is no scale in Turkey with documented validity and reliability that assesses ADHD-specific functional impairment (FI). This study aimed at adapting the Weiss Functional Impairment Rating Scale-Parent Report (WFIRS-P), which assesses ADHD-related FI, for use in Turkey, and examining psychometric aspects of the scale. The study included 250 children diagnosed with ADHD and 250 healthy children and their parents. Internal consistency and test-retest methods were used to test the reliability of the scale. Validity was tested with exploratory and confirmatory factor analyses and convergent and discriminant validity analyses. Since all six questions of the WFIRS-P were scored 0, analyses were conducted for the original scale questionnaire consisting of 50 items and the questionnaire consisting of 44 items where the six questions scored 0 were not included. The Cronbach's alpha coefficient was 0.93 for the whole scale. The Spearman's correlation coefficient was 0.93 for test-retest reliability. The exploratory factor analysis run on the 44-item questionnaire showed that the scale items were best represented in a 7-factor structure, but some items were placed in different subdomains than those of the original scale. In the confirmatory factor analysis, the root mean square error of approximation was 0.061, and the comparative fit index was 0.95 for the whole model. Therefore, the Turkish WFIRS-P is valid and reliable in testing functional impairment in children with ADHD.
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Affiliation(s)
- Mahmut C Tarakçıoğlu
- Child and Adolescent Psychiatry Department, Bakırköy Dr. Sadi Konuk Education and Research Hospital, Istanbul, Turkey,
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Isquith PK, Roth RM, Kenworthy L, Gioia G. Contribution of rating scales to intervention for executive dysfunction. APPLIED NEUROPSYCHOLOGY-CHILD 2014; 3:197-204. [PMID: 24559500 DOI: 10.1080/21622965.2013.870014] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Executive dysfunction is present in children, adolescents, and adults with a wide range of clinical conditions. A growing body of literature has demonstrated the usefulness of rating scales designed to gauge executive functioning in everyday life. In this article, we discuss evidence supporting the use of such rating scales to assess intervention outcome, how they may inform development of interventions, and how comparing rater perspectives can assess awareness of cognitive dysfunction. We provide an example of how an executive function rating scale helped define intervention targets and measured outcomes in a recently published real-world intervention for children with autism spectrum disorder. Rating scales of executive function provide valuable information with respect to treatment planning and assessment of intervention outcome.
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Affiliation(s)
- Peter K Isquith
- a Neuropsychology Program, Department of Psychiatry , Geisel School of Medicine at Dartmouth , Lebanon , New Hampshire
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Wehmeier PM, Dittmann RW, Banaschewski T, Schacht A. Does stimulant pretreatment modify atomoxetine effects on core symptoms of ADHD in children assessed by quantitative measurement technology? J Atten Disord 2014; 18:105-16. [PMID: 22617861 DOI: 10.1177/1087054712445184] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE To compare the reduction of ADHD symptoms under atomoxetine (ATX) in patients with and without pretreatment with a stimulant medication using a computer-based Continuous Performance Test (cb-CPT) combined with an infrared motion tracking (MT) device. METHOD Double-blind, placebo-controlled study in ADHD patients (6-12 years) treated with ATX (target dose = 1.2 mg/kg per day). The cb-CPT/MT scores were analyzed using ANCOVA (last observation carried forward). RESULTS Patient data (n = 125) suggested a differential ATX treatment effect between pretreated and stimulant-naïve patients in terms of three cb-CPT/MT parameters. CONCLUSION This secondary analysis provided evidence that ATX reduced ADHD symptom severity measured by cb-CPT/MT parameters regardless of stimulant pretreatment. A few differential effects were seen based on the cb-CPT/MT. However, no clear pattern could be identified and, overall, the observed differences have no larger clinical relevance. The ATX effect in this study seemed to be largely independent of any previous exposure to stimulants.
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Affiliation(s)
- Peter M Wehmeier
- 1Department of Child and Adolescent Psychiatry, Central Institute of Mental Health, Mannheim, University of Heidelberg, Germany
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Haavik J, Halmøy A, Lundervold AJ, Fasmer OB. Clinical assessment and diagnosis of adults with attention-deficit/hyperactivity disorder. Expert Rev Neurother 2014; 10:1569-80. [DOI: 10.1586/ern.10.149] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Del'Guidice T, Lemasson M, Etiévant A, Manta S, Magno LAV, Escoffier G, Roman FS, Beaulieu JM. Dissociations between cognitive and motor effects of psychostimulants and atomoxetine in hyperactive DAT-KO mice. Psychopharmacology (Berl) 2014; 231:109-22. [PMID: 23912772 DOI: 10.1007/s00213-013-3212-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 07/08/2013] [Indexed: 01/13/2023]
Abstract
RATIONALE Psychostimulants such as amphetamine and methylphenidate, which target the dopamine transporter (DAT), are the most frequently used drugs for the treatment of hyperactivity and cognitive deficits in humans with attention deficit hyperactivity disorder (ADHD). While psychostimulants can increase activity in healthy subjects, they exert a "paradoxical" calming effect in humans with ADHD as well as in hyperactive mice lacking the dopamine transporter (DAT-KO mice). However, the mechanism of action of these drugs and their impact on cognition in the absence of DAT remain poorly understood. OBJECTIVES This study was conducted to investigate the effects of psychostimulants and noradrenergic and serotonergic drugs on cognition in DAT-KO mice and normal (WT) littermates. METHODS We used a recently developed behavioral apparatus, the automated H-maze. The H-maze involves the consecutive learning of three different rules: delayed alternation, nonalternation, and reversal tasks. RESULTS Treatment of WT animals with the psychostimulants replicated the behavior observed in untreated DAT-KO mice while "paradoxically" restoring cognitive performances in DAT-KO mice. Further investigation of the potential involvement of other monoamine systems in the regulation of cognitive functions showed that the norepinephrine transporter blocker atomoxetine restored cognitive performances in DAT-KO mice without affecting hyperactivity. In contrast, the nonselective serotonin receptor agonist 5CT, which antagonizes hyperactivity in DAT-KO mice, had no effect on cognitive functions. CONCLUSIONS Taken together, these data allow dissociation of the locomotor and cognitive effects of ADHD drugs and suggest that the combination of DAT-KO mice with the automated H-maze can constitute a powerful experimental paradigm for the preclinical development of therapeutic approaches for ADHD.
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Affiliation(s)
- Thomas Del'Guidice
- Département de psychiatrie et de neurosciences, Faculté de médecine, Université Laval, Pavillon Ferdinand-Vandry, 1050, avenue de la Médecine, Québec City, QC, Canada
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Banaschewski T, Johnson M, Lecendreux M, Zuddas A, Adeyi B, Hodgkins P, Squires LA, Coghill DR. Health-related quality of life and functional outcomes from a randomized-withdrawal study of long-term lisdexamfetamine dimesylate treatment in children and adolescents with attention-deficit/hyperactivity disorder. CNS Drugs 2014; 28:1191-203. [PMID: 25139785 PMCID: PMC4246127 DOI: 10.1007/s40263-014-0193-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The stimulant prodrug lisdexamfetamine dimesylate (LDX) is an effective and generally well tolerated treatment for the symptoms of attention-deficit/hyperactivity disorder (ADHD). Positive impacts of LDX on health-related quality of life and functional impairment have previously been demonstrated in a 7-week, randomized, double-blind, placebo-controlled, phase III study in children and adolescents in Europe. Maintenance of these broad benefits, as well as symptomatic control, is a key goal of long-term management of ADHD. OBJECTIVE Secondary objectives of this multinational study in children and adolescents with ADHD were to assess the long-term maintenance of effectiveness of LDX in improving health-related quality of life and reducing functional impairment, as gauged using the Child Health and Illness Profile-Child Edition: Parent Report Form (CHIP-CE: PRF) and the Weiss Functional Impairment Rating Scale-Parent Report (WFIRS-P), respectively. METHODS Patients aged 6-17 years with diagnosed ADHD and a baseline ADHD Rating Scale IV total score of at least 28 were enrolled from the previous European study and from US sites. Patients who completed an open-label LDX treatment period of at least 26 weeks were randomized (1:1) to continue on their optimized dose of LDX or to switch to placebo for a 6-week, double-blind, withdrawal period. Parents completed CHIP-CE: PRF and WFIRS-P questionnaires at weeks 0, 8 and 26 of the open-label period and at weeks 0 and 6 of the randomized-withdrawal period, or at early termination. The endpoint of each period was defined as the last visit with valid data. Effect sizes were the difference (LDX minus placebo) in least-squares (LS)-mean change from baseline to endpoint divided by root-mean-square error. P values were nominal and not adjusted for multiple comparisons. RESULTS The open-label and randomized full analysis sets comprised 262 and 153 (LDX n = 76; placebo n = 77) patients, respectively. Mean pretreatment CHIP-CE: PRF T-scores were more than one standard deviation below the normative mean in four of the five domains, and there was significant improvement across all domains from baseline to endpoint of the open-label period. In the randomized-withdrawal period, LS-mean CHIP-CE: PRF T-scores deteriorated in all domains in the placebo group, but not in the LDX group. Compared with placebo, the effect of LDX was significant in the Risk Avoidance (effect size 0.829; p < 0.001), Achievement (0.696; p < 0.001) and Satisfaction (0.636; p < 0.001) domains. Mean pretreatment WFIRS-P scores were lowest in the Family domain and the Learning and School domain. WFIRS-P total score and scores in all domains improved significantly from baseline to endpoint of the open-label period. In the randomized-withdrawal period, LS-mean scores deteriorated in the placebo group but not in the LDX group. Compared with placebo, the effect of LDX was significant in the Family, Learning and School, and Risky Activities domains and in total (effect size 0.908; p < 0.001). CONCLUSIONS Using parent-rated instruments, long-term maintenance of the beneficial effect of LDX in multiple domains of health-related quality of life and functional impairment was demonstrated by comparison of treatment continuation and withdrawal under randomized, double-blind, placebo-controlled conditions.
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Affiliation(s)
- Tobias Banaschewski
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, P.O. Box: 12 21 20, 68072, Mannheim, Germany,
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Differential EMG biofeedback for children with ADHD: a control method for neurofeedback training with a case illustration. Appl Psychophysiol Biofeedback 2013; 38:109-19. [PMID: 23564206 DOI: 10.1007/s10484-013-9213-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The objective of the present paper was to develop a differential electromyographic biofeedback (EMG-BF) training for children with attention-deficit/hyperactivity disorder (ADHD) matching multiple neurofeedback training protocols in order to serve as a valid control training. This differential EMG-BF training method feeds back activity from arm muscles involved in fine motor skills such as writing and grip force control. Tonic EMG-BF training (activation and deactivation blocks, involving bimanual motor tasks) matches the training of EEG frequency bands, while phasic EMG-BF training (short activation and deactivation trials) was developed as an equivalent to the training of slow cortical potentials. A case description of a child who learned to improve motor regulation in most task conditions and showed a clinically relevant reduction of behavioral ADHD symptoms illustrates the training course and outcome. Differential EMG-BF training is feasible and provides well-matched control conditions for neurofeedback training in ADHD research. Future studies should investigate its value as a specific intervention for children diagnosed with ADHD and comorbid sensorimotor problems.
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Usami M, Okada T, Sasayama D, Iwadare Y, Watanabe K, Ushijima H, Kodaira M, Sugiyama N, Sawa T, Saito K. What time periods of the day are concerning for parents of children with attention deficit hyperactivity disorder? PLoS One 2013; 8:e79806. [PMID: 24224007 PMCID: PMC3818216 DOI: 10.1371/journal.pone.0079806] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 09/25/2013] [Indexed: 11/19/2022] Open
Abstract
Background/Aim The questionnaire-children with difficulties (QCD) is a parent-assessed questionnaire designed to evaluate a child’s difficulties in functioning during specific time periods of the day. In this study, the QCD was applied to determine the time periods of the day that are concerning for the parents of children with attention deficit hyperactivity disorder (ADHD). The results were compared with those for a community sample. Methods Elementary and junior high school students with ADHD (243 boys, 55 girls) and a community sample of children (518 boys, 618 girls) were enrolled in this study. Their behaviors were assessed by the QCD, the ADHD-rating scale (ADHD-RS), and the Oppositional Defiant Behavior Inventory (ODBI). The effects of gender (boy/girl) and diagnosis (ADHD/community sample) on the total QCD score were analyzed across each school grade (elementary/junior high school). Correlation coefficients between QCD and ADHD-RS/ODBI scores were analyzed. Results The QCD score for the ADHD group was significantly lower than that for the community sample (P < 0.001). There were significantly strong correlations between “evening” and ADHD-RS and ODBI scores for all children with ADHD (r > 0.41, P < 0.001) and between “night” and inattention and oppositional symptoms for the girls with ADHD (r > 0.40, P < 0.001). Conclusions Parents reported that children with ADHD faced greater difficulties in completing basic daily activities compared with the community controls, particularly in the evening. Furthermore, these difficulties were related to the severity of ADHD symptoms. The parents’ perceptions depended on the gender, ADHD and oppositional symptoms, and the time period of the day. This study determined that children with ADHD face greater difficulties in daily functioning compared with community sample children, that these difficulties are time-dependent, and that these difficulties were particularly experienced in the evening.
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Affiliation(s)
- Masahide Usami
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
- * E-mail:
| | - Takashi Okada
- Department of Child and Adolescent Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Daimei Sasayama
- Department of Child and Adolescent Mental Health, Imperial Gift Foundation, Aiiku Maternal and Child Health Center, Aiiku Hospital, Minato-ku, Japan
| | - Yoshitaka Iwadare
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
| | - Kyota Watanabe
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
| | - Hirokage Ushijima
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
| | - Masaki Kodaira
- Department of Neuropsychiatry, Shinshu University School of Medicine, Matsumoto, Japan
| | - Nobuhiro Sugiyama
- Department of Child and Adolescent Mental Health, Imperial Gift Foundation, Aiiku Maternal and Child Health Center, Aiiku Hospital, Minato-ku, Japan
| | - Tetsuji Sawa
- Department of Developmental Psychiatry, Graduate School of Medical Science, Kitasato University, Sagamihara, Japan
| | - Kazuhiko Saito
- Department of Child and Adolescent Mental Health, Imperial Gift Foundation, Aiiku Maternal and Child Health Center, Aiiku Hospital, Minato-ku, Japan
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Usami M, Sasayama D, Sugiyama N, Hosogane N, Kim SY, Yamashita Y, Kodaira M, Watanabe K, Iwadare Y, Sawa T, Saito K. The reliability and validity of the Questionnaire - Children with Difficulties (QCD). Child Adolesc Psychiatry Ment Health 2013; 7:11. [PMID: 23537143 PMCID: PMC3616960 DOI: 10.1186/1753-2000-7-11] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 03/19/2013] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND The aim of this study was to evaluate the reliability and validity of the Questionnaire-Children with Difficulties (QCD), which was developed for the evaluation of children's daily life behaviors during specified periods of the day. METHODS The subjects were 1,514 Japanese public elementary and junior high school students. For the examination of reliability, Cronbach's alpha was calculated to assess the internal consistency of the questionnaire. With regard to validity, correlation coefficients were calculated to examine whether QCD scores correlated with those of the ADHD-Rating Scale (ADHD-RS) and the Oppositional Defiant Behavior Inventory (ODBI). RESULTS Cronbach's alpha coefficient for the total score of the QCD was .876. The correlation coefficients of the QCD score with ADHD-RS and ODBI scores were -.514 and -.577, respectively. CONCLUSIONS The internal consistency and validity of the QCD were demonstrated. The QCD is a reliable and valid instrument for evaluating daily life problems for children during different time periods of the day.
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Affiliation(s)
- Masahide Usami
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
| | - Daimei Sasayama
- Department of Neuropsychiatry, Shinshu University School of Medicine, Matsumoto, Japan
| | - Nobuhiro Sugiyama
- Department of Neuropsychiatry, Shinshu University School of Medicine, Matsumoto, Japan
| | | | - Soo-Yung Kim
- National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Japan
| | - Yushiro Yamashita
- Department of Pediatrics & Child Health, Kurume University, School of Medicine, Kurume, Japan
| | - Masaki Kodaira
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
| | - Kyota Watanabe
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
| | - Yoshitaka Iwadare
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
| | - Tetsuji Sawa
- Developmental Psychiatry, Graduate School of Medical Science, Kitasato University, Kanagawa, Japan
| | - Kazuhiko Saito
- Department of Child and Adolescent Psychiatry, National Center for Global Health and Medicine, Kohnodai Hospital, Ichikawa, Japan
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Bari A, Robbins TW. Noradrenergic versus dopaminergic modulation of impulsivity, attention and monitoring behaviour in rats performing the stop-signal task: possible relevance to ADHD. Psychopharmacology (Berl) 2013; 230:89-111. [PMID: 23681165 PMCID: PMC3824307 DOI: 10.1007/s00213-013-3141-6] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 04/29/2013] [Indexed: 01/06/2023]
Abstract
RATIONALE Deficient response inhibition is a prominent feature of many pathological conditions characterised by impulsive and compulsive behaviour. Clinically effective doses of catecholamine reuptake inhibitors are able to improve such inhibitory deficits as measured by the stop-signal task (SST) in humans and other animals. However, the precise therapeutic mode of action of these compounds in terms of their relative effects on dopamine (DA) and noradrenaline (NA) systems in prefrontal cortical and striatal regions mediating attention and cognitive control remains unclear. OBJECTIVES We sought to fractionate the effects of global catecholaminergic manipulations on SST performance by using receptor-specific compounds for NA or DA. The results are described in terms of the effects of modulating specific receptor subtypes on various behavioural measures such as response inhibition, perseveration, sustained attention, error monitoring and motivation. RESULTS Blockade of α2-adrenoceptors improved sustained attention and response inhibition, whereas α1 and β1/2 adrenergic receptor antagonists disrupted go performance and sustained attention, respectively. No relevant effects were obtained after targeting DA D1, D2 or D4 receptors, while both a D3 receptor agonist and antagonist improved post-error slowing and compulsive nose-poke behaviour, though generally impairing other task measures. CONCLUSIONS Our results suggest that the use of specific pharmacological agents targeting α2 and β noradrenergic receptors may improve existing treatments for attentional deficits and impulsivity, whereas DA D3 receptors may modulate error monitoring and perseverative behaviour.
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Affiliation(s)
- A. Bari
- Behavioural and Clinical Neuroscience Institute and Department of Psychology, University of Cambridge, Cambridge, CB2 3EB UK ,Department of Neurosciences, Medical University of South Carolina, Ashley Avenue 173, BSB 409, 29425 Charleston, SC USA
| | - T. W. Robbins
- Behavioural and Clinical Neuroscience Institute and Department of Psychology, University of Cambridge, Cambridge, CB2 3EB UK
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Banaschewski T, Soutullo C, Lecendreux M, Johnson M, Zuddas A, Hodgkins P, Adeyi B, Squires LA, Coghill D. Health-related quality of life and functional outcomes from a randomized, controlled study of lisdexamfetamine dimesylate in children and adolescents with attention deficit hyperactivity disorder. CNS Drugs 2013; 27:829-40. [PMID: 23893527 PMCID: PMC3784063 DOI: 10.1007/s40263-013-0095-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Optimal management of attention deficit hyperactivity disorder (ADHD) aims not only to ameliorate patients' symptoms, but also to improve health-related quality of life (HRQL) and functioning. A pivotal, 7-week, randomized, double-blind, placebo-controlled, phase III study in children and adolescents in ten European countries demonstrated that the stimulant prodrug lisdexamfetamine dimesylate (LDX) is an effective and generally well-tolerated treatment for symptoms of ADHD. OBJECTIVE The aim of this study was to assess HRQL and functional impairment outcomes in this clinical trial, using the Child Health and Illness Profile-Child Edition: Parent Report Form (CHIP-CE:PRF) and the Weiss Functional Impairment Rating Scale-Parent Report (WFIRS-P), respectively. METHODS Patients (aged 6-17 years) with diagnosed ADHD and a baseline ADHD Rating Scale IV total score ≥28 were randomized (1:1:1) to 7 weeks of double-blind treatment with once-daily LDX, placebo or the reference treatment, osmotic-release oral system methylphenidate (OROS-MPH). Participants' parents (or legally authorized representatives) completed the CHIP-CE:PRF and WFIRS-P questionnaires at baseline, at weeks 4 and 7, and/or at early termination. Endpoint was defined as the last on-treatment visit with valid data (≤30 % missing items). The CHIP-CE:PRF Achievement domain was pre-specified as the primary HRQL outcome. RESULTS The full analysis set comprised 317 patients (LDX, n = 104; placebo, n = 106; OROS-MPH, n = 107), the majority of whom completed the study (LDX, n = 77; placebo, n = 42; OROS-MPH, n = 72). Baseline CHIP-CE:PRF T-scores in four of the five domains were ≥1 standard deviation below norms (US community samples). Compared with placebo, LDX was associated with statistically significantly improved T-scores from baseline to endpoint in these four domains, with effect sizes of 1.280 (p < 0.001) in Achievement, 1.079 (p < 0.001) in Risk Avoidance, 0.421 (p < 0.01) in Resilience and 0.365 (p < 0.05) in Satisfaction. In LDX-treated patients, placebo-adjusted improvements from baseline to endpoint in WFIRS-P scores were statistically significant (p < 0.001) for total score and four of the six domains, with effect sizes of 0.924 (total score), 1.249 (Learning and School), 0.730 (Family), 0.643 (Social Activities) and 0.640 (Risky Activities). OROS-MPH treatment showed similar patterns of improvement from baseline to endpoint in both CHIP-CE:PRF and WFIRS-P scores. CONCLUSIONS Baseline HRQL and functional impairment scores reflect the burden of untreated ADHD. The benefits of short-term stimulant treatment in children and adolescents with ADHD extend beyond symptomatic relief and impact positively on HRQL and daily functioning.
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Affiliation(s)
- Tobias Banaschewski
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, P.O. Box: 12 21 20, D-68072, Mannheim, Germany,
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Does atomoxetine improve executive function, inhibitory control, and hyperactivity? Results from a placebo-controlled trial using quantitative measurement technology. J Clin Psychopharmacol 2012; 32:653-60. [PMID: 22926599 DOI: 10.1097/jcp.0b013e318267c304] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The primary objective of this study was to evaluate the efficacy of atomoxetine (ATX) on attention-deficit/hyperactivity disorder (ADHD)-related symptoms assessed as standard variables of a computer-based continuous performance test (cb-CPT) combined with a motion-tracking (MT) device. This was a 2-arm, 8-week, randomized, double-blind, placebo-controlled study in patients with ADHD (6-12 years). Therapy with ATX started with 0.5 mg/kg per day for 1 week, followed by 7 weeks on the target dosage of 1.2 mg/kg per day. Primary outcomes were cb-CPT/MT standard scores after 8 weeks using mixed models for repeated measurements. In addition, investigator-rated ADHD Rating Scale (ADHD-RS), Weekly Ratings of Evening and Morning Behavior (WREMB), and Clinical Global Impression - Severity-ADHD (CGI-S-ADHD) scores were assessed. Of 128 patients randomized, 125 were evaluated (ATX/placebo: 63/62). Baseline characteristics were comparable in both groups (overall, 80.2% boys; mean [SD] age, 9.0 [1.79] years; comorbid Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition diagnosis, 40.0% oppositional defiant disorder/conduct disorder; prior stimulant treatment, 24.8%; ADHD-RS total score, 36.99 [11.56]). At week 8, all cb-CPT/MT q-scores were significantly reduced versus placebo (all P < 0.001) with effect sizes (ESs) of reaction time (RT) variation (ES = 0.71), mean RT (ES = 0.41), number of microevents (ES = 1.00), commission error rate (ES = 0.50), distance of movement (ES = 0.90), area of movement (ES = 1.08), omission error rate (ES = 0.70), time active (ES = 0.69), motion simplicity (ES = 0.38), and normalized variance of RT (ES = 0.50). Secondary end points also improved significantly in favor of ATX: ADHD-RS (total score ES = 1.30, P < 0.001; hyperactivity/impulsivity subscore ES = 1.37, P < 0.001; inattention subscore ES = 1.07, P < 0.001), WREMB (total score ES = 1.00, P < 0.001; morning subscore ES = 0.59, P = 0.002; evening subscore ES = 1.02, P < 0.001), CGI-S-ADHD (ES = 1.11, P < 0.001). The results of this study show that ATX for 8 weeks significantly reduced ADHD-related symptoms as measured by the cb-CPT/MT.
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Abstract
This report describes the case of an ADHD girl (hereafter referred to as K) with semantic-pragmatic disorder, she was treated with atomoxetine. K was a 9-year-old girl. She had difficulty understanding words or sentences, finding words, and producing sentences. K also displayed symptoms of severe inattentiveness. K was diagnosed with DSM-IV-defined(1) ADHD, predominantly the inattentive type. Her communication impairment was considered symptomatic of semantic-pragmatic disorder. K was started on atomoxetine, the dose was increased to 50 mg/day (dosage based on weight: 1.8 mg/kg). Her communication activities were improved a few weeks after atomoxetine 50 mg/day was administered. She was unable to organize information pertaining to words, and so could not use words in expressive language. These problems were mitigated through the administration of atomoxetine. Further prospective studies are needed to better understand the therapeutic effects of atomoxetine in patients with semantic-pragmatic disorder.
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Affiliation(s)
- Kayo Inoko
- Department of Pediatrics, Tokyo Women's Medical University, Tokyo, Japan.
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40
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Wu EQ, Hodgkins P, Ben-Hamadi R, Setyawan J, Xie J, Sikirica V, Du EX, Yan SY, Erder MH. Cost effectiveness of pharmacotherapies for attention-deficit hyperactivity disorder: a systematic literature review. CNS Drugs 2012; 26:581-600. [PMID: 22712698 DOI: 10.2165/11633900-000000000-00000] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Attention-deficit hyperactivity disorder (ADHD) is a common psychiatric disorder that impairs the quality of life for patients and their families and is associated with considerable direct and indirect costs. Pharmacotherapies for ADHD, including stimulants and non-stimulants, are often used to treat patients with ADHD. However, the costs, effectiveness and adverse effects of these agents vary. Therefore, information regarding the cost effectiveness of different pharmacological treatments is needed to better inform payers in the allocation of limited resources. OBJECTIVES The objectives of this study were to conduct a systematic literature review of economic evaluations of pharmacotherapies for ADHD treatments and to assess the cost effectiveness of different interventions based on the existing studies. METHODS A systematic literature review of economic evaluations of pharmacotherapies for ADHD was conducted in MEDLINE, the National Health Services (NHS) Economic Evaluation database and EMBASE. For inclusion in this review, studies had to compare two or more ADHD interventions with at least one pharmacotherapy, assess both costs and outcomes, and be conducted between 1990 and 2011 in North America, Europe, Australia or New Zealand. Studies were excluded if they were not original research, were presented only as conference proceedings or abstracts or did not report costs associated with specific interventions. The study quality was assessed using the British Medical Journal (BMJ) health economics checklist. The literature search, data extraction and quality assessment were performed by one author and independently checked for accuracy by a second author. Discrepancies were resolved by consensus and referring to the original article. If necessary, a third reviewer was consulted. RESULTS The initial search returned 93 citations from MEDLINE, 10 from the NHS Economic Evaluation database and 377 from EMBASE. Thirteen papers met the inclusion/exclusion criteria and were included in the review. Based on the BMJ checklist, all these studies were considered to be of sufficient quality to be included in the literature review, but they varied substantially in target population, methodology and effectiveness measures. Identified pharmacotherapies were cost effective compared with no treatment, placebo, behavioural therapy or community care among children and adolescents with ADHD. Studies comparing non-stimulants with stimulants and amfetamine with methylphenidate stimulants showed inconsistent findings. A limited number of studies indicated that methylphenidate Osmotic-controlled Release Oral delivery System (OROS) was cost effective compared with short-acting methylphenidate. There were no published studies on the cost effectiveness of pharmacotherapy in the adult ADHD population, comparing stimulants, non-stimulants or adjuvant therapy. There is limited evidence on the long-term cost effectiveness of pharmacotherapies. CONCLUSIONS Among children and adolescents with ADHD, there was consistent evidence that pharmacotherapies are cost effective compared with no treatment or behavioural therapy. Adequate data are lacking to draw conclusions regarding the relative cost effectiveness of different pharmacological agents. More economic evaluations with standardized methods, such as effectiveness measures and cost components, are warranted. To better inform payers about the economic value of existing medications, future studies should also consider identifying subgroups that may have heterogeneous responses to different treatments, including analyses of recently approved treatments (e.g. lisdexamfetamine, guanfacine extended-release and clonidine extended-release) and expanding the time horizon to incorporate long-term outcomes.
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Affiliation(s)
- Eric Q Wu
- Analysis Group, Inc., Boston, MA, USA.
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41
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Comparative study of OROS-MPH and atomoxetine on executive function improvement in ADHD: a randomized controlled trial. Int J Neuropsychopharmacol 2012; 15:15-26. [PMID: 22017969 DOI: 10.1017/s1461145711001490] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
This study aimed to compare the effects of osmotic release oral system-methylphenidate (OROS-MPH) and atomoxetine (ATX) on executive function in children and adolescents with attention deficit hyperactivity disorder (ADHD) by a randomized controlled trial. Subjects who met DSM-IV ADHD criteria were randomized to receive either OROS-MPH or ATX treatment. The doses were titrated to achieve optimal response and then maintained for 4-6 wk. A battery of executive function tests and the Behavior Rating Inventory of Executive Function (BRIEF) were administered to subjects who completed the dose titration (OROS-MPH, n=85; ATX, n=57) at the pre- and post-treatment periods. Forty-six children without ADHD were recruited as controls. Both OROS-MPH and ATX significantly improved scores in the Rey Complex Figure Test (RCFT), digit span, and Stroop color-word task. The scores in RCFT and the reverse digit span were not significantly different from the control group at post-treatment assessment (OROS-MPH=ATX=control, p>0.05), whereas the word interference time of the Stroop test was still more than that of the control group (OROS-MPH=ATX>control, p>0.05). OROS-MPH also significantly improved the total correct response in the verbal fluency test to normal level, and the shifting time in the trail-making test to subnormal level. The current findings suggest both OROS-MPH and ATX improved executive function generally in children and adolescents with ADHD, and could return working memory back to normative performance level.
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42
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Kohn MR, Tsang TW, Clarke SD. Efficacy and Safety of Atomoxetine in the Treatment of Children and Adolescents with Attention Deficit Hyperactivity Disorder. CLINICAL MEDICINE. PEDIATRICS 2012; 6:95-162. [PMID: 23641171 PMCID: PMC3620814 DOI: 10.4137/cmped.s7868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Several non-stimulant medications have been used in the treatment of attention deficit hyperactivity disorder (ADHD). Atomoxetine, was introduced in 2002. The safety and efficacy of atomoxetine in the treatment of ADHD for children, adolescents, and adults has been evaluated in over 4000 patients in randomized controlled studies and double blinded studies as well as in recent large longitudinal studies. This paper provides an updated summary of the literature on atomoxetine, particularly in relation to findings on the short- and long-term safety of atomoxetine in children and adolescents arising from recent large longitudinal cohort studies. Information is presented about the efficacy, safety, and tolerability of this medication.
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Affiliation(s)
- Michael R. Kohn
- Centre for Research into Adolescents’ Health (CRASH), The Sydney Children's Hospital Network and Westmead Hospital, Westmead, NSW, Australia
- Brain Dynamics Centre, Westmead Millennium Institute for Medical Research and University of Sydney Medical School—Westmead, Westmead, NSW, Australia
- Department of Psychiatry and Medicine, University of Sydney Medical School—Westmead, NSW, Australia
| | - Tracey W. Tsang
- Brain Dynamics Centre, Westmead Millennium Institute for Medical Research and University of Sydney Medical School—Westmead, Westmead, NSW, Australia
- Department of Psychiatry and Medicine, University of Sydney Medical School—Westmead, NSW, Australia
| | - Simon D. Clarke
- Centre for Research into Adolescents’ Health (CRASH), The Sydney Children's Hospital Network and Westmead Hospital, Westmead, NSW, Australia
- Brain Dynamics Centre, Westmead Millennium Institute for Medical Research and University of Sydney Medical School—Westmead, Westmead, NSW, Australia
- Department of Psychiatry and Medicine, University of Sydney Medical School—Westmead, NSW, Australia
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Wehmeier PM, Schacht A, Wolff C, Otto WR, Dittmann RW, Banaschewski T. Neuropsychological outcomes across the day in children with attention-deficit/hyperactivity disorder treated with atomoxetine: results from a placebo-controlled study using a computer-based continuous performance test combined with an infra-red motion-tracking device. J Child Adolesc Psychopharmacol 2011; 21:433-44. [PMID: 22040189 DOI: 10.1089/cap.2010.0142] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The effect of atomoxetine (ATX) on executive function has been assessed by means of questionnaires only. The aim of this study was therefore to evaluate the efficacy of ATX using standard variables of a computer-based continuous performance test (cb-CPT) combined with an infra-red motion-tracking device at different times of the day. One hundred twenty-eight girls and boys aged 6 to 12 years with a diagnosis of ADHD according to DSM-IV-TR criteria were randomized in the study. The primary efficacy measures were the q-scores of the cb-CPT combined with an infra-red motion-tracking device. The test comprises 13 neuropsychological variables that can be taken to reflect hyperactivity, inattention, or impulsivity. One hundred five patients completed the study (ATX group: n=54; placebo group: n=51). ATX (target dose 1.2 mg/kg/day) over 8 weeks was significantly superior to placebo in reducing hyperactivity, inattention, and impulsivity as measured by q-scores of 10 primary variables of the cb-CPT. Both groups of patients showed a circadian pattern of neuropsychological outcomes across the day as reflected by the cb-CPT combined with an infra-red motion-tracking device. In summary, this study demonstrated a positive effect of ATX on some aspects of executive function, inhibitory control, and hyperactivity compared with placebo.
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Affiliation(s)
- Peter M Wehmeier
- Department of Child and Adolescent Psychiatry, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany.
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Dickson RA, Maki E, Gibbins C, Gutkin SW, Turgay A, Weiss MD. Time courses of improvement and symptom remission in children treated with atomoxetine for attention-deficit/hyperactivity disorder: analysis of Canadian open-label studies. Child Adolesc Psychiatry Ment Health 2011; 5:14. [PMID: 21569378 PMCID: PMC3120776 DOI: 10.1186/1753-2000-5-14] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Accepted: 05/11/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The relatively short durations of the initial pivotal randomized placebo-controlled trials involving atomoxetine HCl for the treatment of attention-deficit/hyperactivity disorder (ADHD) provided limited insight into the time courses of ADHD core symptom responses to this nonstimulant, selective norepinephrine reuptake inhibitor. The aim of this analysis was to evaluate time courses of treatment responses or remission, as assessed by attainment of prespecified scores on the ADHD Rating Scale-IV-Parent Version: Investigator Administered and Scored (ADHDRS-IV-PI) and the Clinical Global Impressions-ADHD-Severity (CGI-ADHD-S) scales, during up to 1 year of atomoxetine treatment in children with ADHD. METHODS Using pooled data from three Canadian open-label studies involving 338 children ages 6-11 years with ADHD who were treated with atomoxetine for 3, 6 and 12 months, and survival analysis methods for interval-censored data, we estimated the time to: 1) improvement and robust improvement defined by ≥25% and ≥40% reductions from baseline ADHDRS-IV-PI total scores, respectively; and 2) remission using two definitions: a final score of ADHDRS-IV-PI ≤18 or a final score of CGI-ADHD-S ≤2. RESULTS The median time to improvement was 3.7 weeks (~1 month), but remission of symptoms did not occur until a median of 14.3 weeks (~3.5 months) using the most stringent CGI-ADHD-S threshold. Probabilities of robust improvement were 47% at or before 4 weeks of treatment; 76% at 12 weeks; 85% at 26 weeks; and 96% at 52 weeks. Probabilities of remission at these corresponding time points were 30%, 59%, 77%, and 85% (using the ADHDRS-IV scale) and 8%, 47%, 67%, and 75% (using the CGI-ADHD-S scale). The change from atomoxetine treatment month 5 to month 12 of -1.01 (1.03) was not statistically significant (p = .33). CONCLUSIONS Reductions in core ADHD symptoms during atomoxetine treatment are gradual. Although approximately one-half of study participants showed improvement at 1 month of atomoxetine treatment, remission criteria were not met until about 3 months. Understanding the time course of children's responses to atomoxetine treatment may inform clinical decision making and also influence the durations of trials comparing the effects of this medication with other ADHD treatments. TRIAL REGISTRATIONS clinicaltrials.gov: NCT00191633, NCT00216918, NCT00191880.
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Affiliation(s)
- Ruth A Dickson
- Eli Lilly Canada, Toronto, Canada and University of Calgary, Alberta, Canada.
| | - Ellen Maki
- Analytica Statistical Consulting, Don Mills, Ontario, Canada
| | - Christopher Gibbins
- Children's and Women's Health Centre of British Columbia, Mental Health Research Unit, Vancouver, Canada
| | | | - Atilla Turgay
- University of Toronto and Toronto ADHD Clinic, Ontario, Canada
| | - Margaret D Weiss
- Children's and Women's Health Centre of British Columbia, Mental Health Research Unit, Vancouver, Canada
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Cognitive enhancers for the treatment of ADHD. Pharmacol Biochem Behav 2011; 99:262-74. [PMID: 21596055 DOI: 10.1016/j.pbb.2011.05.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 04/26/2011] [Accepted: 05/03/2011] [Indexed: 12/11/2022]
Abstract
Attention-deficit hyperactivity disorder (ADHD) is associated with multiple cognition-related phenotypic features in both children and adults. This review aims to clarify the role of cognition in ADHD and how prevailing treatments, which are often highly effective at reducing the clinical symptoms of the disorder, fare in modulating ADHD-related cognitive processes. First, we consider how the broad construct of cognition can be conceptualized in the context of ADHD. Second, we review the available evidence for how a range of both pharmacological and non-pharmacological interventions have fared with respect to enhancing cognition in individuals affected by this pervasive disorder. Findings from the literature suggest that the effects across a broad range of pharmacological and non-pharmacological interventions on the characteristic symptoms of ADHD can be distinguished from their effects on cognitive impairments. As such the direct clinical relevance of cognition enhancing effects of different interventions is somewhat limited. Recommendations for future research are discussed, including the identification of cognition-related endophenotypes, the refinement of the ADHD clinical phenotype, and studying the difference between acute and chronic treatment regimens.
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Drug policy and treatment bias due to the dopamine-deficit theory of child attention-deficit hyperactivity disorder. ACTA ACUST UNITED AC 2010; 2:149-57. [DOI: 10.1007/s12402-010-0033-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 08/30/2010] [Indexed: 11/26/2022]
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