Each month, we curate key research to support evidence-informed ADHD assessment and care.

Chaque mois, nous retenons les études importantes pour appuyer l'évaluation et les soins du TDAH basés sur les données.

Daria, Schetz, et al. "Lack of beneficial effect of planned treatment interruption in adults with ADHD treated with methylphenidate-clinical evidence." Psychiatry Research, Aug. 2026, pp. 117409.

Comment by Doron Almagor, MD, FRCPC: The authors conclude that planned weekend discontinuation should not be assumed to improve treatment quality in adults on stable MPH. This is a useful counterweight to the common clinical habit of "medication holidays," and worth discussion on our forums, especially given how often adult patients ask for weekend breaks for appetite, sleep, or perceived tolerance.

Read the full commentary.

Commentaire de Doron Almagor, M.D., FRCPC : Les auteurs concluent que l’interruption planifiée du traitement la fin de semaine ne devrait pas être présumée améliorer la qualité du traitement chez les adultes prenant une dose stable de méthylphénidate (MPH). Ces résultats constituent un contrepoids utile à l’habitude clinique courante des « congés médicamenteux » et méritent d’être discutés sur nos forums, particulièrement compte tenu de la fréquence à laquelle les patients adultes demandent des interruptions la fin de semaine pour des raisons liées à l’appétit, au sommeil ou à une tolérance perçue au traitement.

Lisez le commentaire au complet.

Conceptualization • Conceptualisation

Salehpour F and Gonzalez-Lima F (2026) “Historical development of ADHD from 1753 to 2026.” Front. Psychol., Aug. 2026, vol. 17, pp. 1938091.

Assessment and Diagnosis • Évaluation et diagnostic

Gignac, Martin et al. “Prevalence, Trends and Patterns of ADHD Medication Use Among Children, Adolescents and Young Adults in Quebec, Canada: A Repeated Cross-Sectional Population-Based Study From 2000 to 2022: Prévalence, tendances et profils d'utilisation des médicaments pour le TDAH chez les enfants, les adolescents et les jeunes adultes au Québec (Canada) : étude populationnelle transversale répétée, 2000-2022.” Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie, Aug. 2026.

Feinmann, Jane. “The Great ADHD Myth: What you need to know about Channel 4's "most controversial show of the year." BMJ (Clinical research ed.) vol. 394 e100637. Aug. 2026.

FU, Qi-Qi, et al. "Parent-teacher agreement on ADHD symptom ratings: A systematic review and meta-analysis." Frontiers in Psychiatry, August 2026, vol. 17, pp: 1770305.

Guidelines/Management • Lignes directrices/gestion

Young, Héloïse et al. “Clinical practices in ADHD management across Europe: findings from the ESCAP research academy survey.” European Child & Adolescent Psychiatry, Aug. 2026.

Psychosocial Treatment • Traitement psychosocial

Lindström, Therese et al. “A Systematic and Explorative Literature Review Investigating Parent Training Interventions For Parents with ADHD.” Journal of Attention Disorders, Aug. 2026, pp. 10870547261476398.

Pharmacological Treatment • Traitement pharmacologique

You, Zifan, et al. "Comparative efficacy of non-pharmacological interventions on executive function and attentional control in children and adolescents with ADHD: a Bayesian network meta-analysis based on task-based cognitive outcomes." Translational Psychiatry, Aug. 2026.

Goodman, David W et al. “The American Society of Clinical Psychopharmacology task force consensus statement on the deprescribing of stimulant medications in adults with ADHD✰.” European Neuropsychopharmacology : the Journal of the European College of Neuropsychopharmacology, 2026 vol. 111, pp. 112863.

Associated Factors • Facteurs associés

Zhou, Yiling, et al. "Major adverse cardiovascular events and mortality associated with ADHD and its treatment in adults with hypertension: a retrospective, multinational cohort study." The Lancet Primary Care, Aug, 2026.

Halaç, Eren et al. “Minor physical anomalies in ASD and ADHD: a systematic review and meta-analysis.” Nordic Journal of Psychiatry, Aug. 2026, pp. 1-19.

Villumsen, Martin Dalgaard et al. “Sex Differences in the Association Between Attention-Deficit Hyperactivity Disorder and Physical Diseases in Childhood and Adolescence Using Nationwide Birth Cohorts.” Journal of Attention Disorders, May. 2026, pp: 10870547261448260.

Explore the abstracts or full articles where available. We welcome suggested feature articles for the discussion forum.

Explorez les résumés ou les articles complets le cas échéant. Vos suggestions d'articles à présenter au forum sont les bienvenues.

Featured Article ● Article sélectionné

Indicates a Canadian-based researcher was involved ● Indique l’implication d’un chercheur au Canada.

Indicates CADDRA-affiliated Research ● Indique une recherche affiliée à la CADDRA.

Eureka! Alerts ● Alertes Eurêka!