Michael Huss
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Michael Huss has a total of 68 co-authors. Here are the top co-authors by number of shared publications:
- Christoph Kretschmar
Städt. Krankenhaus Dresden-Neustadt, Zentrum für Kinder- und Jugendmedizin - Sozialpädiatrisches Zentrum, Dresden, Germany
3 shared publications - David Pittrow
Institute for Clinical Pharmacology, Medical Faculty, Technical University, Dresden, Germany
3 shared publications - Franziska Gaese
Abt. Psychiatrische Therapie für Menschen mit Geistiger Behinderung, Isar-Amper-Klinikum gGmbH, Klinikum München-Ost, Haar, Germany
3 shared publications - Helmut Peters
Rheinhessen-Fachklinik Mainz, Kinder- und Jugendpsychiatrie, Mainz, Germany
3 shared publications - Marc Brinkman
Medizinische Abteilung, Novartis Pharma GmbH, Nürnberg, Germany
3 shared publications - Michael Colla
Experimental and Clinical Research Center, Charité - Campus Berlin Buch & Department of Psychiatry and Psychotherapy, Charité - Campus Mitte, Berlin, Germany
3 shared publications
Latest Publications
- 30 July 2024
- Published by Georg Thieme Verlag KG in KJP up2date
- Vol. 01 (01) , 4-5
Editorial
Liebe Leserinnen und Leser, die Sorge um die psychische Gesundheit von Kindern und Jugendlichen ist nach der Pandemie, den aktuellen Belastungen durch Kriege, vielfältigen Traumatisierungen z.B. im Rahmen von Migration und gesellschaftlichen Veränderungen aber auch angesichts des Klimawandels und den damit verbundenen Zukunftsängsten aktueller denn je. Die Kinder- und Jugendpsychiatrie (KJP), deren integraler Bestandteil immer auch die Psychotherapie und die Psychosomatik für Kinder und Jugendliche ist, steht daher wie alle interdisziplinär eng mit ihr verbundenen Fächer der Psychologie, der Pädiatrie aber auch der Allgemeinpsychiatrie vor immensen Herausforderungen. Mit der neu ins Leben gerufenen Zeitschrift KJP up2date wollen wir einen interdisziplinären Beitrag leisten, auf Basis der aktuellen wissenschaftlichen Evidenz und dabei aber konsequent praxisorientiert („aus der Praxis für die Praxis“), die Versorgung von Kindern und Jugendlichen zu verbessern. Wie gesagt: Der Bedarf ist dringender denn je und der Ansatz kann angesichts der Komplexität an Themen nur evidenzbasiert wie auch interdisziplinär und praxisbezogen sein. Die Zeitschrift wendet sich an alle, die sich in Fort- und Weiterbildung befinden bzw. die KJP-bezogenen Inhalte hochwertig und aktuell vermitteln möchten. Dabei versteht sich die KJP von jeher als ein in hohem Maße interdisziplinäres Fach, das maßgebliche Vernetzungen mit anderen Disziplinen pflegt und diese beständig weiterentwickelt. Neben den Kernthemen von Diagnostik und Behandlung von psychischen Erkrankungen im Kindes- und Jugendalter kommen insbesondere Fragen der Entwicklung, aber auch neurobiologische, psychosoziale wie auch gesellschaftliche und umweltbezogene Einflüsse zum Tragen. Wer die Entwicklung von Kindern und Jugendlichen sowie deren Familien und Lebensbezüge verstehen möchte um diagnostisch und therapeutisch tätig zu werden, kommt gar nicht umhin, einen engen Austausch mit der Psychologie, der Pädagogik, der Pädiatrie mit ihren Subdisziplinen, der Allgemeinpsychiatrie, den Neurowissenschaften aber auch mit der Genetik und den Disziplinen bildgebender Verfahren zu pflegen. Konsequenterweise haben wir uns daher als Team von Herausgeberinnen und Herausgebern von Anfang an interdisziplinär aufgestellt und innerhalb der KJP auch darauf geachtet, dass sowohl Belange der ambulanten Versorgung durch Niedergelassene als auch klinische und wissenschaftliche Fachexpertise vertreten sind. Schon im Mutterleib, wie später dann nach der Geburt und im weiteren Entwicklungsverlauf, finden Kinder bestimmte Lebensbedingungen vor, mit denen sie auf Basis ihrer verfügbaren biologischen und psychosozialen Ressourcen umgehen müssen. Wie gut ihnen das gelingt und ob sie bei Bedarf auch therapeutische Hilfen in Anspruch nehmen können, ist für die psychische Gesundheit maßgeblich. Ein wesentlicher Faktor dabei ist auch, dass sie, ihrem Entwicklungs- und Reifungsstand angemessen, ihr Lebensumfeld mitgestalten können. Als neues Herausgeberteam sind wir mit dem up2date-Konzept im Thieme Verlag nicht nur auf ein bereits gut etabliertes Format gestoßen, dessen erfolgreiche Konzepte wir einerseits nutzen konnten aber andererseits auch erweitern durften. So bot sich uns die Möglichkeit mit einem mehrdimensionalen Ansatz ein eigenes kinder- und jugendpsychiatrisches Kolorit einzubringen, um die Leser von Anfang an mit kinder- und jugendpsychiatrischen ‚Denkweisen‘ vertraut zu machen. Wie unter dem Beitrag „In eigener Sache“ noch näher ausgeführt, wird es neben den klassischerweise Störungs-bezogenen Artikeln (Rubrik 1) weitere Perspektiven und Dimensionen geben, mit denen wir Wissen und Kompetenzen des Faches vermitteln wollen. So werden in der Rubrik 2 (Toolbox) diagnostische und therapeutische Methoden behandelt, die einer spezifischen Expertise bedürfen und nicht auf die Anwendung bei bestimmten Störungsbildern beschränkt sind. In der Rubrik 3 (Lifespan) kommt der Ansatz einer lebenslangen Entwicklung zum Tragen, der mittlerweile in nahezu allen medizinischen Fächern eine Rolle spielt. Wie eine Vielzahl von Längsschnittstudien zeigen, werden Erkrankungen des jungen und mittleren Erwachsenenalters aber auch neurodegenerativen Erkrankungen des höheren Lebensalters maßgeblich von Entwicklungen der Kindheit beeinflusst. Wer also auch im Sinne der präventiven Medizin nachhaltig Veränderungen bewirken möchte, sollte ein besonderes Augenmerk auf die Entwicklung psychischer Gesundheit im Kindes- und Jugendalter haben. Rubrik 4 (Familie, Schule und Gesellschaft) fokussiert sich auf die psychosozialen Einflussfaktoren der psychischen Gesundheit, die immer schon eine wichtige Rolle gespielt haben, mit der Pandemie und der Klimakrise aber noch einmal in besonderer Weise in den Fokus der öffentlichen Diskussion gerückt wurden. Ein besonderes Anliegen verbindet das Herausgeberteam mit der Rubrik 5 (Perspektivwechsel). Die Fähigkeit, sich in die Position anderer hineinzuversetzen spielt nicht nur in der psychischen Entwicklung von Kindern und Jugendlichen, sondern auch bei therapeutischen Interventionen (z.B. in der validierenden Gesprächsführung) und zunehmend auf kultureller und gesellschaftlicher Ebene eine maßgebliche Rolle. Wenn es also störungsübergreifend um Fragen des Perspektivwechsels geht, werden Sie diese unter Rubrik 5 finden. Und schließlich haben wir noch die Rubrik 6 (Berufspolitik, Recht und Ethik) vorgesehen, in der wir Beiträge verorten, die sich mit wichtigen Änderungen der Gesetzgebung, mit Fragen der Berufspolitik aber auch dem damit verbundenen ethischen Diskurs befassen. Nicht nur die aktuelle Kontroverse über geschlechtsangleichende Behandlungen...
- 30 July 2024
- Published by Georg Thieme Verlag KG in KJP up2date
- Vol. 01 (01) , 4-5
Editorial
Liebe Leserinnen und Leser, die Sorge um die psychische Gesundheit von Kindern und Jugendlichen ist nach der Pandemie, den aktuellen Belastungen durch Kriege, vielfältigen Traumatisierungen z.B. im Rahmen von Migration und gesellschaftlichen Veränderungen aber auch angesichts des Klimawandels und den damit verbundenen Zukunftsängsten aktueller denn je. Die Kinder- und Jugendpsychiatrie (KJP), deren integraler Bestandteil immer auch die Psychotherapie und die Psychosomatik für Kinder und Jugendliche ist, steht daher wie alle interdisziplinär eng mit ihr verbundenen Fächer der Psychologie, der Pädiatrie aber auch der Allgemeinpsychiatrie vor immensen Herausforderungen. Mit der neu ins Leben gerufenen Zeitschrift KJP up2date wollen wir einen interdisziplinären Beitrag leisten, auf Basis der aktuellen wissenschaftlichen Evidenz und dabei aber konsequent praxisorientiert („aus der Praxis für die Praxis“), die Versorgung von Kindern und Jugendlichen zu verbessern. Wie gesagt: Der Bedarf ist dringender denn je und der Ansatz kann angesichts der Komplexität an Themen nur evidenzbasiert wie auch interdisziplinär und praxisbezogen sein. Die Zeitschrift wendet sich an alle, die sich in Fort- und Weiterbildung befinden bzw. die KJP-bezogenen Inhalte hochwertig und aktuell vermitteln möchten. Dabei versteht sich die KJP von jeher als ein in hohem Maße interdisziplinäres Fach, das maßgebliche Vernetzungen mit anderen Disziplinen pflegt und diese beständig weiterentwickelt. Neben den Kernthemen von Diagnostik und Behandlung von psychischen Erkrankungen im Kindes- und Jugendalter kommen insbesondere Fragen der Entwicklung, aber auch neurobiologische, psychosoziale wie auch gesellschaftliche und umweltbezogene Einflüsse zum Tragen. Wer die Entwicklung von Kindern und Jugendlichen sowie deren Familien und Lebensbezüge verstehen möchte um diagnostisch und therapeutisch tätig zu werden, kommt gar nicht umhin, einen engen Austausch mit der Psychologie, der Pädagogik, der Pädiatrie mit ihren Subdisziplinen, der Allgemeinpsychiatrie, den Neurowissenschaften aber auch mit der Genetik und den Disziplinen bildgebender Verfahren zu pflegen. Konsequenterweise haben wir uns daher als Team von Herausgeberinnen und Herausgebern von Anfang an interdisziplinär aufgestellt und innerhalb der KJP auch darauf geachtet, dass sowohl Belange der ambulanten Versorgung durch Niedergelassene als auch klinische und wissenschaftliche Fachexpertise vertreten sind. Schon im Mutterleib, wie später dann nach der Geburt und im weiteren Entwicklungsverlauf, finden Kinder bestimmte Lebensbedingungen vor, mit denen sie auf Basis ihrer verfügbaren biologischen und psychosozialen Ressourcen umgehen müssen. Wie gut ihnen das gelingt und ob sie bei Bedarf auch therapeutische Hilfen in Anspruch nehmen können, ist für die psychische Gesundheit maßgeblich. Ein wesentlicher Faktor dabei ist auch, dass sie, ihrem Entwicklungs- und Reifungsstand angemessen, ihr Lebensumfeld mitgestalten können. Als neues Herausgeberteam sind wir mit dem up2date-Konzept im Thieme Verlag nicht nur auf ein bereits gut etabliertes Format gestoßen, dessen erfolgreiche Konzepte wir einerseits nutzen konnten aber andererseits auch erweitern durften. So bot sich uns die Möglichkeit mit einem mehrdimensionalen Ansatz ein eigenes kinder- und jugendpsychiatrisches Kolorit einzubringen, um die Leser von Anfang an mit kinder- und jugendpsychiatrischen ‚Denkweisen‘ vertraut zu machen. Wie unter dem Beitrag „In eigener Sache“ noch näher ausgeführt, wird es neben den klassischerweise Störungs-bezogenen Artikeln (Rubrik 1) weitere Perspektiven und Dimensionen geben, mit denen wir Wissen und Kompetenzen des Faches vermitteln wollen. So werden in der Rubrik 2 (Toolbox) diagnostische und therapeutische Methoden behandelt, die einer spezifischen Expertise bedürfen und nicht auf die Anwendung bei bestimmten Störungsbildern beschränkt sind. In der Rubrik 3 (Lifespan) kommt der Ansatz einer lebenslangen Entwicklung zum Tragen, der mittlerweile in nahezu allen medizinischen Fächern eine Rolle spielt. Wie eine Vielzahl von Längsschnittstudien zeigen, werden Erkrankungen des jungen und mittleren Erwachsenenalters aber auch neurodegenerativen Erkrankungen des höheren Lebensalters maßgeblich von Entwicklungen der Kindheit beeinflusst. Wer also auch im Sinne der präventiven Medizin nachhaltig Veränderungen bewirken möchte, sollte ein besonderes Augenmerk auf die Entwicklung psychischer Gesundheit im Kindes- und Jugendalter haben. Rubrik 4 (Familie, Schule und Gesellschaft) fokussiert sich auf die psychosozialen Einflussfaktoren der psychischen Gesundheit, die immer schon eine wichtige Rolle gespielt haben, mit der Pandemie und der Klimakrise aber noch einmal in besonderer Weise in den Fokus der öffentlichen Diskussion gerückt wurden. Ein besonderes Anliegen verbindet das Herausgeberteam mit der Rubrik 5 (Perspektivwechsel). Die Fähigkeit, sich in die Position anderer hineinzuversetzen spielt nicht nur in der psychischen Entwicklung von Kindern und Jugendlichen, sondern auch bei therapeutischen Interventionen (z.B. in der validierenden Gesprächsführung) und zunehmend auf kultureller und gesellschaftlicher Ebene eine maßgebliche Rolle. Wenn es also störungsübergreifend um Fragen des Perspektivwechsels geht, werden Sie diese unter Rubrik 5 finden. Und schließlich haben wir noch die Rubrik 6 (Berufspolitik, Recht und Ethik) vorgesehen, in der wir Beiträge verorten, die sich mit wichtigen Änderungen der Gesetzgebung, mit Fragen der Berufspolitik aber auch dem damit verbundenen ethischen Diskurs befassen. Nicht nur die aktuelle Kontroverse über geschlechtsangleichende Behandlungen...
- Open Access
- 10 February 2021
- Published by MDPI AG in Brain Sciences
- Vol. 11 (2) , 214
EEG Data Quality: Determinants and Impact in a Multicenter Study of Children, Adolescents, and Adults with Attention-Deficit/Hyperactivity Disorder (ADHD)
Electroencephalography (EEG) represents a widely established method for assessing altered and typically developing brain function. However, systematic studies on EEG data quality, its correlates, and consequences are scarce. To address this research gap, the current study focused on the percentage of artifact-free segments after standard EEG pre-processing as a data quality index. We analyzed participant-related and methodological influences, and validity by replicating landmark EEG effects. Further, effects of data quality on spectral power analyses beyond participant-related characteristics were explored. EEG data from a multicenter ADHD-cohort (age range 6 to 45 years), and a non-ADHD school-age control group were analyzed (ntotal = 305). Resting-state data during eyes open, and eyes closed conditions, and task-related data during a cued Continuous Performance Task (CPT) were collected. After pre-processing, general linear models, and stepwise regression models were fitted to the data. We found that EEG data quality was strongly related to demographic characteristics, but not to methodological factors. We were able to replicate maturational, task, and ADHD effects reported in the EEG literature, establishing a link with EEG-landmark effects. Furthermore, we showed that poor data quality significantly increases spectral power beyond effects of maturation and symptom severity. Taken together, the current results indicate that with a careful design and systematic quality control, informative large-scale multicenter trials characterizing neurophysiological mechanisms in neurodevelopmental disorders across the lifespan are feasible. Nevertheless, results are restricted to the limitations reported. Future work will clarify predictive value.
- 10 February 2021
- Published by MDPI AG in Brain Sciences
- Vol. 11 (2) , 214
Open AccessEEG Data Quality: Determinants and Impact in a Multicenter Study of Children, Adolescents, and Adults with Attention-Deficit/Hyperactivity Disorder (ADHD)
Electroencephalography (EEG) represents a widely established method for assessing altered and typically developing brain function. However, systematic studies on EEG data quality, its correlates, and consequences are scarce. To address this research gap, the current study focused on the percentage of artifact-free segments after standard EEG pre-processing as a data quality index. We analyzed participant-related and methodological influences, and validity by replicating landmark EEG effects. Further, effects of data quality on spectral power analyses beyond participant-related characteristics were explored. EEG data from a multicenter ADHD-cohort (age range 6 to 45 years), and a non-ADHD school-age control group were analyzed (ntotal = 305). Resting-state data during eyes open, and eyes closed conditions, and task-related data during a cued Continuous Performance Task (CPT) were collected. After pre-processing, general linear models, and stepwise regression models were fitted to the data. We found that EEG data quality was strongly related to demographic characteristics, but not to methodological factors. We were able to replicate maturational, task, and ADHD effects reported in the EEG literature, establishing a link with EEG-landmark effects. Furthermore, we showed that poor data quality significantly increases spectral power beyond effects of maturation and symptom severity. Taken together, the current results indicate that with a careful design and systematic quality control, informative large-scale multicenter trials characterizing neurophysiological mechanisms in neurodevelopmental disorders across the lifespan are feasible. Nevertheless, results are restricted to the limitations reported. Future work will clarify predictive value.
- Open Access
- 1 March 2019
- Published by Elsevier in European Neuropsychopharmacology
- Vol. 29 (3) , 432-443
Distinguishing the efficacy and sedative effects of guanfacine extended release in children and adolescents with attention-deficit/hyperactivity disorder
- 1 March 2019
- Published by Elsevier in European Neuropsychopharmacology
- Vol. 29 (3) , 432-443
Open AccessDistinguishing the efficacy and sedative effects of guanfacine extended release in children and adolescents with attention-deficit/hyperactivity disorder
- Open Access
- 13 February 2018
- Published by Springer Nature in European Child & Adolescent Psychiatry
- Vol. 27 (10) , 1283-1294
Long-term safety and efficacy of guanfacine extended release in children and adolescents with ADHD
Data are reported from SPD503-318, a phase 3, open-label, safety study of guanfacine extended release (GXR) in European children and adolescents with attention-deficit/hyperactivity disorder (ADHD). Participants received dose-optimized GXR (1–7 mg/day) for up to 2 years. Of 215 enrolled participants, 214 were included in the safety population and 133 completed the study. Participants’ mean age was 11.7 years and 73.8% were male. Overall, 177 participants (82.7%) experienced a treatment-emergent adverse event (TEAE). TEAEs reported in at least 10% of participants were somnolence (36.0%), headache (28.5%), fatigue (20.1%), and nasopharyngitis (11.7%). Serious TEAEs were reported in 4.7% of participants and TEAEs leading to discontinuation were reported in 3.3% of participants. There were no deaths. Mean z-scores for BMI were stable throughout the study. The incidence of sedative TEAEs (somnolence, sedation, and hypersomnia) peaked during week 3 and decreased thereafter. Small changes from baseline to the final assessment in mean supine pulse [− 5.5 bpm (standard deviation, 12.98)] and blood pressure [systolic, 0.6 mmHg (9.32); diastolic, 0.2 mmHg (9.17)] were reported. ADHD symptoms initially decreased and remained significantly lower than baseline at study endpoint. At the final assessment, the mean change in ADHD-RS-IV total score from baseline was − 19.8 (standard error of mean, 0.84; nominal p < 0.0001). In conclusion, GXR was well tolerated and more than 60% of participants completed the 2-year study.
- 13 February 2018
- Published by Springer Nature in European Child & Adolescent Psychiatry
- Vol. 27 (10) , 1283-1294
Open AccessLong-term safety and efficacy of guanfacine extended release in children and adolescents with ADHD
Data are reported from SPD503-318, a phase 3, open-label, safety study of guanfacine extended release (GXR) in European children and adolescents with attention-deficit/hyperactivity disorder (ADHD). Participants received dose-optimized GXR (1–7 mg/day) for up to 2 years. Of 215 enrolled participants, 214 were included in the safety population and 133 completed the study. Participants’ mean age was 11.7 years and 73.8% were male. Overall, 177 participants (82.7%) experienced a treatment-emergent adverse event (TEAE). TEAEs reported in at least 10% of participants were somnolence (36.0%), headache (28.5%), fatigue (20.1%), and nasopharyngitis (11.7%). Serious TEAEs were reported in 4.7% of participants and TEAEs leading to discontinuation were reported in 3.3% of participants. There were no deaths. Mean z-scores for BMI were stable throughout the study. The incidence of sedative TEAEs (somnolence, sedation, and hypersomnia) peaked during week 3 and decreased thereafter. Small changes from baseline to the final assessment in mean supine pulse [− 5.5 bpm (standard deviation, 12.98)] and blood pressure [systolic, 0.6 mmHg (9.32); diastolic, 0.2 mmHg (9.17)] were reported. ADHD symptoms initially decreased and remained significantly lower than baseline at study endpoint. At the final assessment, the mean change in ADHD-RS-IV total score from baseline was − 19.8 (standard error of mean, 0.84; nominal p < 0.0001). In conclusion, GXR was well tolerated and more than 60% of participants completed the 2-year study.
- Open Access
- 10 September 2016
- Published by Springer Nature in BMC Psychiatry
- Vol. 16 (1) , 1-10
Characterization, treatment patterns, and patient-related outcomes of patients with Fragile X syndrome in Germany: final results of the observational EXPLAIN-FXS study
As data on the phenotype, characteristics and management of patients with Fragile X Syndrome (FXS) are limited, we aimed to collect such data in Germany in experienced centres involved in the treatment of such patients. EXPLAIN-FXS is a prospective observational (non-interventional) study (registry) performed between April 2013 and January 2016 at 18 sites in Germany. Requirements for patient participation included confirmed diagnosis of FXS by genetic testing (>200 CGG repeats) and written informed consent. Patients were followed for up to 2 years. Seventy-five patients (84.0 % males, mean age 16.7 ± 14.5 years, ranging from 2 - 82 years) were analysed. The mean 6-item score, determined according to Giangreco (J Pediatr 129:611-614, 1996), was 6.9 ± 2.5 points. At least one neurological finding each was noted in 53 patients (69.7 %). Specifically, ataxia was noted in 5 patients (6.6 %), lack of fine motor skills in 40 patients, (52.6 %), muscle tonus disorder in 4 patients (5.3 %), and other neurological disorders in 39 patients (51.3 %). Spasticity was not noted in any patient. Seizures were reported in 6 patients (8.1 %), anxiety disorders in 22 patients (30.1 %), depression in 7 patients (9.6 %), ADHD/ADD in 36 patients (49.3 %), impairment of social behavior in 39 patients (53.4 %), and other comorbidities in 23 patients (31.5 %). The mean Aberrant Behaviour Checklist Community Edition (ABC-C) score on behavioral symptoms, obtained in 71 patients at first documentation, was 48.4 ± 27.8 (median 45.0, range 5-115). The mean visual analogue scale (VAS) score, obtained in 59 patients at first documentation, was 84.9 ± 14.6 points (median 90; range 50 – 100). This report describes the largest cohort of patients with FXS in Europe. The reported observations indicate a substantial burden of disease for patients and their caregivers. Based on these observations, an early expert psychiatric diagnosis is recommended for suspected FXS patients. Further recommendations include multimodal and multi-professional management that is tailored to the individual patient’s needs. The ClinTrials.gov identifier is NCT01711606 . Registered on 18 October 2012.
- 10 September 2016
- Published by Springer Nature in BMC Psychiatry
- Vol. 16 (1) , 1-10
Open AccessCharacterization, treatment patterns, and patient-related outcomes of patients with Fragile X syndrome in Germany: final results of the observational EXPLAIN-FXS study
As data on the phenotype, characteristics and management of patients with Fragile X Syndrome (FXS) are limited, we aimed to collect such data in Germany in experienced centres involved in the treatment of such patients. EXPLAIN-FXS is a prospective observational (non-interventional) study (registry) performed between April 2013 and January 2016 at 18 sites in Germany. Requirements for patient participation included confirmed diagnosis of FXS by genetic testing (>200 CGG repeats) and written informed consent. Patients were followed for up to 2 years. Seventy-five patients (84.0 % males, mean age 16.7 ± 14.5 years, ranging from 2 - 82 years) were analysed. The mean 6-item score, determined according to Giangreco (J Pediatr 129:611-614, 1996), was 6.9 ± 2.5 points. At least one neurological finding each was noted in 53 patients (69.7 %). Specifically, ataxia was noted in 5 patients (6.6 %), lack of fine motor skills in 40 patients, (52.6 %), muscle tonus disorder in 4 patients (5.3 %), and other neurological disorders in 39 patients (51.3 %). Spasticity was not noted in any patient. Seizures were reported in 6 patients (8.1 %), anxiety disorders in 22 patients (30.1 %), depression in 7 patients (9.6 %), ADHD/ADD in 36 patients (49.3 %), impairment of social behavior in 39 patients (53.4 %), and other comorbidities in 23 patients (31.5 %). The mean Aberrant Behaviour Checklist Community Edition (ABC-C) score on behavioral symptoms, obtained in 71 patients at first documentation, was 48.4 ± 27.8 (median 45.0, range 5-115). The mean visual analogue scale (VAS) score, obtained in 59 patients at first documentation, was 84.9 ± 14.6 points (median 90; range 50 – 100). This report describes the largest cohort of patients with FXS in Europe. The reported observations indicate a substantial burden of disease for patients and their caregivers. Based on these observations, an early expert psychiatric diagnosis is recommended for suspected FXS patients. Further recommendations include multimodal and multi-professional management that is tailored to the individual patient’s needs. The ClinTrials.gov identifier is NCT01711606 . Registered on 18 October 2012.
- Open Access
- 1 May 2016
- Published by Taylor & Francis in Neuropsychiatric Disease and Treatment
- Vol. 12, 1085-1101
Guanfacine extended release for children and adolescents with attention-deficit/hyperactivity disorder: efficacy following prior methylphenidate treatment
Guanfacine extended release (GXR) and atomoxetine (ATX) are nonstimulant treatments for attention-deficit/hyperactivity disorder (ADHD). As nonstimulant treatments are often used after stimulants in ADHD, GXR was assessed relative to prior stimulant treatment in a randomized controlled trial (RCT), in which ATX was included as a reference arm, and in the open-label phase of a randomized-withdrawal study (RWS). Participants were 6–17 years old with ADHD Rating Scale version IV (ADHD-RS-IV) scores ≥32 and Clinical Global Impressions – Severity scores ≥4. RCT participants received dose-optimized GXR (1–7 mg/day), ATX (10–100 mg/day), or placebo for 10–13 weeks. RWS participants received dose-optimized GXR (1–7 mg/day) for 13 weeks. Participants’ last stimulant medication prior to enrolment, and reasons for stopping this medication, were collected at baseline. Change from baseline ADHD-RS-IV score and the proportion of responders were assessed by prior stimulant exposure. Of 163 RCT and 296 RWS participants who had previously received stimulant treatment, 142 and 224, respectively, had received methylphenidate (MPH); due to the low number of participants and the heterogeneity of non-MPH treatments, we only report data for prior MPH treatment. The most frequent reasons for stopping MPH were lack of effectiveness or side effects. Placebo-adjusted ADHD-RS-IV changes from baseline were significant in participants receiving GXR (prior MPH, −9.8, PP0.05, ES 0.15) participants. More participants met responder criteria with GXR versus placebo, regardless of prior treatment. GXR response was unaffected by prior stimulant treatment; ATX produced improvement only in stimulant-naïve participants relative to placebo. These findings may be relevant to clinical decision-making regarding sequencing of ADHD treatments.
- 1 May 2016
- Published by Taylor & Francis in Neuropsychiatric Disease and Treatment
- Vol. 12, 1085-1101
Open AccessGuanfacine extended release for children and adolescents with attention-deficit/hyperactivity disorder: efficacy following prior methylphenidate treatment
Guanfacine extended release (GXR) and atomoxetine (ATX) are nonstimulant treatments for attention-deficit/hyperactivity disorder (ADHD). As nonstimulant treatments are often used after stimulants in ADHD, GXR was assessed relative to prior stimulant treatment in a randomized controlled trial (RCT), in which ATX was included as a reference arm, and in the open-label phase of a randomized-withdrawal study (RWS). Participants were 6–17 years old with ADHD Rating Scale version IV (ADHD-RS-IV) scores ≥32 and Clinical Global Impressions – Severity scores ≥4. RCT participants received dose-optimized GXR (1–7 mg/day), ATX (10–100 mg/day), or placebo for 10–13 weeks. RWS participants received dose-optimized GXR (1–7 mg/day) for 13 weeks. Participants’ last stimulant medication prior to enrolment, and reasons for stopping this medication, were collected at baseline. Change from baseline ADHD-RS-IV score and the proportion of responders were assessed by prior stimulant exposure. Of 163 RCT and 296 RWS participants who had previously received stimulant treatment, 142 and 224, respectively, had received methylphenidate (MPH); due to the low number of participants and the heterogeneity of non-MPH treatments, we only report data for prior MPH treatment. The most frequent reasons for stopping MPH were lack of effectiveness or side effects. Placebo-adjusted ADHD-RS-IV changes from baseline were significant in participants receiving GXR (prior MPH, −9.8, PP0.05, ES 0.15) participants. More participants met responder criteria with GXR versus placebo, regardless of prior treatment. GXR response was unaffected by prior stimulant treatment; ATX produced improvement only in stimulant-naïve participants relative to placebo. These findings may be relevant to clinical decision-making regarding sequencing of ADHD treatments.
- Open Access
- 20 November 2015
- Published by Springer Nature in Clinical Drug Investigation
- Vol. 36 (1) , 1-25
Guanfacine Extended Release: A New Pharmacological Treatment Option in Europe
Children/adolescents with attention-deficit/hyperactivity disorder (ADHD) may have a poor or inadequate response to psychostimulants or be unable to tolerate their side-effects; furthermore, stimulants may be inappropriate because of co-existing conditions. Only one non-stimulant ADHD pharmacotherapy, the noradrenaline transporter inhibitor atomoxetine, is currently approved for use in Europe. We review recent advances in understanding of the pathophysiology of ADHD with a focus on the roles of catecholamine receptors in context of the α2A-adrenergic receptor agonist guanfacine extended release (GXR), a new non-stimulant treatment option in Europe. Neuroimaging studies of children/adolescents with ADHD show impaired brain maturation, and structural and functional anomalies in brain regions and networks. Neurobiological studies in ADHD and medication response patterns support involvement of monoaminergic neurotransmitters (primarily dopamine and noradrenaline). Guanfacine is a selective α2A-adrenergic receptor agonist that has been shown to improve prefrontal cortical cognitive function, including working memory. The hypothesized mode of action of guanfacine centres on direct stimulation of post-synaptic α2A-adrenergic receptors to enhance noradrenaline neurotransmission. Preclinical data suggest that guanfacine also influences dendritic spine growth and maturation. Clinical trials have demonstrated the efficacy of GXR in ADHD, and it is approved as monotherapy or adjunctive therapy to stimulants in Canada and the USA (for children and adolescents). GXR was approved recently in Europe for the treatment of ADHD in children and adolescents for whom stimulants are not suitable, not tolerated or have been shown to be ineffective. GXR may provide particular benefit for children/adolescents who have specific co-morbidities such as chronic tic disorders or oppositional defiant disorder (or oppositional symptoms) that have failed to respond to first-line treatment options.
- 20 November 2015
- Published by Springer Nature in Clinical Drug Investigation
- Vol. 36 (1) , 1-25
Open AccessGuanfacine Extended Release: A New Pharmacological Treatment Option in Europe
Children/adolescents with attention-deficit/hyperactivity disorder (ADHD) may have a poor or inadequate response to psychostimulants or be unable to tolerate their side-effects; furthermore, stimulants may be inappropriate because of co-existing conditions. Only one non-stimulant ADHD pharmacotherapy, the noradrenaline transporter inhibitor atomoxetine, is currently approved for use in Europe. We review recent advances in understanding of the pathophysiology of ADHD with a focus on the roles of catecholamine receptors in context of the α2A-adrenergic receptor agonist guanfacine extended release (GXR), a new non-stimulant treatment option in Europe. Neuroimaging studies of children/adolescents with ADHD show impaired brain maturation, and structural and functional anomalies in brain regions and networks. Neurobiological studies in ADHD and medication response patterns support involvement of monoaminergic neurotransmitters (primarily dopamine and noradrenaline). Guanfacine is a selective α2A-adrenergic receptor agonist that has been shown to improve prefrontal cortical cognitive function, including working memory. The hypothesized mode of action of guanfacine centres on direct stimulation of post-synaptic α2A-adrenergic receptors to enhance noradrenaline neurotransmission. Preclinical data suggest that guanfacine also influences dendritic spine growth and maturation. Clinical trials have demonstrated the efficacy of GXR in ADHD, and it is approved as monotherapy or adjunctive therapy to stimulants in Canada and the USA (for children and adolescents). GXR was approved recently in Europe for the treatment of ADHD in children and adolescents for whom stimulants are not suitable, not tolerated or have been shown to be ineffective. GXR may provide particular benefit for children/adolescents who have specific co-morbidities such as chronic tic disorders or oppositional defiant disorder (or oppositional symptoms) that have failed to respond to first-line treatment options.
- 2 February 2015
- Published by Georg Thieme Verlag KG in Psychiatrische Praxis
- Vol. 43 (03) , 160-164
Psychiatrische und soziale Aspekte bei Patienten mit fragilem X-Syndrom (FRX)
Anliegen: Ziel der Untersuchung ist die Erhebung von Daten zu psychischen Belastungen und deren Behandlung beim fragilen X-Syndrom (FRX). Methode: Die Ergebnisse basieren auf einer Beobachtungsstudie (EXPLAIN). Ergebnisse: Die Belastung mit psychischen Symptomen war insgesamt hoch. Betroffene unter 18 Jahren wiesen mehr expansive, erwachsene Patienten dagegen mehr internalisierende Störungen auf. Trotz der hohen Symptombelastung lebten 90,6 % der unter 18-Jährigen und immer noch 50 % der Erwachsenen im elterlichen Haushalt. Schlussfolgerungen: Aufgrund der hohen Belastung mit psychischen Symptomen sollte eine dem Alter entsprechende Diagnostik und Therapie erfolgen. Objective: The goal of the study was to describe the burden of psychosocial risks, of mental illnesses and the ways of treatment of patients with fragile X syndrome (FRX). Method: Data from a sample of 46 FRX-patients stemming from a prospective multicenter (N = 12) registry study (EXPLAIN) were analyzed with regard to psychosocial burden and treatment. Results: More than 50 % of all participants reported about relatives suffering from FRX, too. The majority of participants did not finish school and was suffering from one or another kind of mental problems. Younger participants (< 18 yrs.) tended to suffer from expansive disorders. Older participants were rather burdened by internalizing symptoms and disorders. Disorders were usually treated by psychotropic drugs added by logopedic therapies and occupational therapies (more than once a month). In our sample 90.6 % of younger and more than 64.3 % of older patients were still living with their parents. Conclusions: Patients with FRX often suffer from additional mental disorders and should be diagnosed and treated early.
- 2 February 2015
- Published by Georg Thieme Verlag KG in Psychiatrische Praxis
- Vol. 43 (03) , 160-164
Psychiatrische und soziale Aspekte bei Patienten mit fragilem X-Syndrom (FRX)
Anliegen: Ziel der Untersuchung ist die Erhebung von Daten zu psychischen Belastungen und deren Behandlung beim fragilen X-Syndrom (FRX). Methode: Die Ergebnisse basieren auf einer Beobachtungsstudie (EXPLAIN). Ergebnisse: Die Belastung mit psychischen Symptomen war insgesamt hoch. Betroffene unter 18 Jahren wiesen mehr expansive, erwachsene Patienten dagegen mehr internalisierende Störungen auf. Trotz der hohen Symptombelastung lebten 90,6 % der unter 18-Jährigen und immer noch 50 % der Erwachsenen im elterlichen Haushalt. Schlussfolgerungen: Aufgrund der hohen Belastung mit psychischen Symptomen sollte eine dem Alter entsprechende Diagnostik und Therapie erfolgen. Objective: The goal of the study was to describe the burden of psychosocial risks, of mental illnesses and the ways of treatment of patients with fragile X syndrome (FRX). Method: Data from a sample of 46 FRX-patients stemming from a prospective multicenter (N = 12) registry study (EXPLAIN) were analyzed with regard to psychosocial burden and treatment. Results: More than 50 % of all participants reported about relatives suffering from FRX, too. The majority of participants did not finish school and was suffering from one or another kind of mental problems. Younger participants (< 18 yrs.) tended to suffer from expansive disorders. Older participants were rather burdened by internalizing symptoms and disorders. Disorders were usually treated by psychotropic drugs added by logopedic therapies and occupational therapies (more than once a month). In our sample 90.6 % of younger and more than 64.3 % of older patients were still living with their parents. Conclusions: Patients with FRX often suffer from additional mental disorders and should be diagnosed and treated early.
- Open Access
- 3 September 2014
- Published by Springer Nature in CNS Drugs
- Vol. 28 (10) , 951-962
Long-Term (1 Year) Safety and Efficacy of Methylphenidate Modified-Release Long-Acting Formulation (MPH-LA) in Adults with Attention-Deficit Hyperactivity Disorder: A 26-Week, Flexible-Dose, Open-Label Extension to a 40-Week, Double-Blind, Randomised, Placebo-Controlled Core Study
Introduction Previously, in a 40-week, randomised, double-blind, placebo-controlled core study comprising three phases (9-week dose confirmation, 5-week open-label dose optimisation and 6-month maintenance of effect) in adults with attention-deficit/hyperactivity disorder (ADHD), methylphenidate modified-release long-acting formulation (MPH-LA) at 40–80 mg/day controlled ADHD symptoms as well as decreased functional impairment with a good tolerability profile (NCT01259492). Here, we report the long-term efficacy and safety from a 26-week, open-label extension phase of the same study (NCT01338818). Methods Patients in the extension study (n = 298) initiated treatment with MPH-LA (20 mg/day), up-titrated in increments of 20 mg/week to reach individual patient’s daily optimal dose of 40–80 mg. Adverse events (AEs) and serious adverse events (SAEs) were reported at the end of extension study for events monitored from (1) maintenance of effect phase baseline (core study; 12 months) and (2) extension study baseline (6 months). Mean changes in DSM-IV ADHD Rating Scale (DSM-IV ADHD RS) and Sheehan Disability Scale (SDS) total scores are reported for both the timelines. Efficacy was also evaluated using clinician-rated instruments, namely Clinical Global Impression-Improvement Scale (CGI-I) and Clinical Global Impression-Severity Scale (CGI-S). Results No unexpected AEs were reported in the extension study. Incidence of SAEs reported during 6 months and 12 months were similar (0.7 %), and no deaths were reported. No SAEs were considered attributable to the drug at the end of 12 months. There were no reports of patients with QT, QTcB or QTcF >500 ms. The mean improvement in DSM-IV ADHD RS and SDS total scores at the end of 12 months were 0.9 and 1.4 points, respectively; and at the end of 6 months were 7.2 and 4.8, respectively. The proportion of patients with improvement in CGI-S scale was 31.4 % and 52.1 % at the end of 12 and 6 months, respectively. Overall, 69.4 % of patients showed clinical improvement in CGI-I scale at the end of 6 months. Conclusions In adult patients with ADHD, use of MPH-LA up to 1 year continued to be well tolerated while maintaining the clinical efficacy.
- 3 September 2014
- Published by Springer Nature in CNS Drugs
- Vol. 28 (10) , 951-962
Open AccessLong-Term (1 Year) Safety and Efficacy of Methylphenidate Modified-Release Long-Acting Formulation (MPH-LA) in Adults with Attention-Deficit Hyperactivity Disorder: A 26-Week, Flexible-Dose, Open-Label Extension to a 40-Week, Double-Blind, Randomised, Placebo-Controlled Core Study
Introduction Previously, in a 40-week, randomised, double-blind, placebo-controlled core study comprising three phases (9-week dose confirmation, 5-week open-label dose optimisation and 6-month maintenance of effect) in adults with attention-deficit/hyperactivity disorder (ADHD), methylphenidate modified-release long-acting formulation (MPH-LA) at 40–80 mg/day controlled ADHD symptoms as well as decreased functional impairment with a good tolerability profile (NCT01259492). Here, we report the long-term efficacy and safety from a 26-week, open-label extension phase of the same study (NCT01338818). Methods Patients in the extension study (n = 298) initiated treatment with MPH-LA (20 mg/day), up-titrated in increments of 20 mg/week to reach individual patient’s daily optimal dose of 40–80 mg. Adverse events (AEs) and serious adverse events (SAEs) were reported at the end of extension study for events monitored from (1) maintenance of effect phase baseline (core study; 12 months) and (2) extension study baseline (6 months). Mean changes in DSM-IV ADHD Rating Scale (DSM-IV ADHD RS) and Sheehan Disability Scale (SDS) total scores are reported for both the timelines. Efficacy was also evaluated using clinician-rated instruments, namely Clinical Global Impression-Improvement Scale (CGI-I) and Clinical Global Impression-Severity Scale (CGI-S). Results No unexpected AEs were reported in the extension study. Incidence of SAEs reported during 6 months and 12 months were similar (0.7 %), and no deaths were reported. No SAEs were considered attributable to the drug at the end of 12 months. There were no reports of patients with QT, QTcB or QTcF >500 ms. The mean improvement in DSM-IV ADHD RS and SDS total scores at the end of 12 months were 0.9 and 1.4 points, respectively; and at the end of 6 months were 7.2 and 4.8, respectively. The proportion of patients with improvement in CGI-S scale was 31.4 % and 52.1 % at the end of 12 and 6 months, respectively. Overall, 69.4 % of patients showed clinical improvement in CGI-I scale at the end of 6 months. Conclusions In adult patients with ADHD, use of MPH-LA up to 1 year continued to be well tolerated while maintaining the clinical efficacy.