Efficacy and Safety of Multilayer, Extended-Release Methylphenidate (PRC-063) in Children 6–12 Years of Age with Attention-Deficit/Hyperactivity Disorder: A Laboratory Classroom Study
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Résumé
Objective: To determine the safety and efficacy of PRC-063, a once-daily, multilayer, extended-release (ER) formulation of methylphenidate (MPH) hydrochloride, in the treatment of attention-deficit/hyperactivity disorder (ADHD) in children in a randomized, double-blind, parallel group, dose-optimized, placebo-controlled phase 3 study. Methods: Boys and girls aged 6–12 years diagnosed with ADHD were enrolled. During a 6-week, open-label, dose-optimization phase, subjects began treatment at 25 mg/day of PRC-063 and were titrated until an optimal dose (maximum 85 mg/day) was reached. During the double-blind period, subjects were randomized to receive treatment with their optimal dose of PRC-063 or placebo for 1 week. Efficacy was assessed in a laboratory classroom setting on the final day of the double-blind treatment using the Swanson, Kotkin, Agler, M-Flynn, and Pelham (SKAMP) Rating Scale and Permanent Product Measure of Performance (PERMP). Safety was assessed measuring adverse events (AEs), vital signs, and electrocardiograms. Results: The study was completed by 147 subjects. In the primary efficacy analysis, significant improvements were demonstrated with PRC-063 versus placebo ( p < 0.0001) when SKAMP-Combined scores were averaged over the 13-hour full-day laboratory classroom (least squares mean difference = −8.6, 95% confidence interval = −10.6 to −6.6). Mean average PERMP-Total scores were also significantly improved with PRC-063 versus placebo at all time points postdose ( p < 0.01). The onset of treatment effect was present by 1-hour postdose (the first time point measured) and duration of efficacy was up to and including 13 hours postdose. AEs reported in ≥5% of subjects during the dosing optimization period were decreased appetite, abdominal pain upper, affect lability, weight decreased, headache, irritability, and insomnia. Conclusions: PRC-063 was effective in improving attention and reducing symptoms of ADHD versus placebo and had a rapid onset and extended duration of effect. AEs were consistent to those reported with other ER MPH treatments. Clinical Trial Registry: NCT03172481.
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Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle