PMID- 34714120 OWN - NLM STAT- MEDLINE DCOM- 20211210 LR - 20211214 IS - 1557-8992 (Electronic) IS - 1044-5463 (Linking) VI - 31 IP - 9 DP - 2021 Nov TI - A Randomized, Controlled Laboratory Classroom Study of Serdexmethylphenidate and d-Methylphenidate Capsules in Children with Attention-Deficit/Hyperactivity Disorder. PG - 597-609 LID - 10.1089/cap.2021.0077 [doi] AB - Objectives: To evaluate the efficacy and safety of once-daily serdexmethylphenidate/dexmethylphenidate (SDX/d-MPH) capsules (Azstarys()) compared with placebo in children with attention-deficit/hyperactivity disorder (ADHD) in a randomized, double-blind, dose-optimized laboratory classroom study. Methods: Children ages 6-12 with ADHD were enrolled. During a 3-week, open-label, Dose Optimization Phase, subjects initiated treatment with 39.2 mg/7.8 mg/day of SDX/d-MPH and were titrated weekly to an optimal dose (maximum dose of 52.3/10.4 mg). During the double-blind Treatment Phase, subjects were randomized to receive their optimal dose of SDX/d-MPH or placebo for 7 days. On day 7, efficacy was assessed in the laboratory classroom using the Swanson, Kotkin, Agler, M-Flynn, and Pelham (SKAMP) Rating Scale and Permanent Product Measure of Performance (PERMP). To evaluate safety, adverse events (AEs), vital signs, and electrocardiograms were assessed, and suicide risk was assessed. Results: A total of 149 subjects completed the study. In the primary efficacy analysis, the mean postdose change from baseline in SKAMP-Combined scores averaged over the laboratory classroom day was significantly improved with SDX/d-MPH versus placebo (least-squares mean treatment difference [95% confidence interval]: -5.41 [-7.10 to -3.71]; p < 0.001). A significant treatment effect for SDX/d-MPH compared with placebo was observed from 1 to 10 hours postdose. A post hoc analysis more comparable with that conducted in similar studies indicated a 0.5- to 13-hour onset and duration of efficacy. Both average postdose PERMP-Attempted and PERMP-Correct score changes from baseline were significantly improved among those treated with SDX/d-MPH versus placebo (p < 0.001 for both). No serious AEs were reported. During the Dose Optimization Phase, two-thirds of subjects reported AEs; the most common being insomnia and decreased appetite. Conclusions: SDX/d-MPH showed significant improvement in ADHD symptoms compared with placebo in children 6-12 years of age, with a rapid onset and extended duration of treatment effect. SDX/d-MPH was safe, with AEs comparable with those observed with other stimulant treatments. FAU - Kollins, Scott H AU - Kollins SH AD - Duke ADHD Program, Durham, North Carolina, USA. AD - Holmusk, Durham, North Carolina, USA. FAU - Braeckman, Rene AU - Braeckman R AD - KemPharm, Inc., Celebration, Florida, USA. FAU - Guenther, Sven AU - Guenther S AD - KemPharm, Inc., Celebration, Florida, USA. FAU - Barrett, Andrew C AU - Barrett AC AD - KemPharm, Inc., Celebration, Florida, USA. FAU - Mickle, Travis C AU - Mickle TC AD - KemPharm, Inc., Celebration, Florida, USA. FAU - Oh, Charles AU - Oh C AD - Corium, Inc., Grand Rapids, Michigan, USA. FAU - Marraffino, Andrea AU - Marraffino A AD - Meridien Research, Maitland, Florida, USA. FAU - Cutler, Andrew J AU - Cutler AJ AD - SUNY Upstate Medical University, Syracuse, New York, USA. AD - Neuroscience Education Institute, Lakewood Ranch, Florida, USA. FAU - Brams, Matthew N AU - Brams MN AD - Bayou City Research, Houston, Texas, USA. LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20211029 PL - United States TA - J Child Adolesc Psychopharmacol JT - Journal of child and adolescent psychopharmacology JID - 9105358 RN - 0 (Capsules) RN - 0 (Central Nervous System Stimulants) RN - 0 (Delayed-Action Preparations) RN - 0 (serdexmethylphenidate and dexmethylphenidate) RN - 207ZZ9QZ49 (Methylphenidate) SB - IM MH - *Attention Deficit Disorder with Hyperactivity/drug therapy MH - Capsules/therapeutic use MH - *Central Nervous System Stimulants/adverse effects MH - Child MH - Delayed-Action Preparations/therapeutic use MH - Dose-Response Relationship, Drug MH - Double-Blind Method MH - Humans MH - Laboratories MH - *Methylphenidate/adverse effects MH - Treatment Outcome OTO - NOTNLM OT - ADHD OT - SDX/d-MPH OT - pediatric EDAT- 2021/10/30 06:00 MHDA- 2021/12/15 06:00 CRDT- 2021/10/29 12:15 PHST- 2021/10/30 06:00 [pubmed] PHST- 2021/12/15 06:00 [medline] PHST- 2021/10/29 12:15 [entrez] AID - 10.1089/cap.2021.0077 [doi] PST - ppublish SO - J Child Adolesc Psychopharmacol. 2021 Nov;31(9):597-609. doi: 10.1089/cap.2021.0077. Epub 2021 Oct 29.