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- W1999461973 abstract "BackgroundThis multicenter, randomized, fixed-dose, double-blind, placebo-controlled study evaluated efficacy of extended-release dexmethylphenidate (d-MPH-ER) in adults with attention-deficit/hyperactivity disorder (ADHD).MethodsRandomized adults with ADHD (n = 221) received once-daily d-MPH-ER 20 mg, 30 mg, or 40 mg or placebo for 5 weeks. The primary efficacy variable was change from baseline to final visit in DSM-IV ADHD Rating Scale (ADHD-RS) total score. Secondary efficacy parameters included the proportion of patients with improvement ≥30% in ADHD-RS total score and final scores on Clinical Global Impressions-Improvement (CGI-I) scale.ResultsOf 218 evaluable patients, 184 completed the study. All d-MPH-ER doses were significantly superior to placebo in improving ADHD-RS total scores. Placebo scores improved by 7.9; d-MPH-ER, 20 mg, improved by 13.7 (p = .006); d-MPH-ER, 30 mg, improved by 13.4 (p = .012); and d-MPH-ER, 40 mg, improved by 16.9 (p < .001). Overall distribution of CGI-I ratings at final visit was significantly better with each d-MPH-ER dosage than with placebo. There were no unexpected safety or tolerability concerns, based on experience with racemic methylphenidate (MPH) in adults and dexmethylphenidate (d-MPH) in children.ConclusionsOnce-daily d-MPH-ER at 20 mg, 30 mg, or 40 mg is a safe and effective treatment for adults with ADHD. This multicenter, randomized, fixed-dose, double-blind, placebo-controlled study evaluated efficacy of extended-release dexmethylphenidate (d-MPH-ER) in adults with attention-deficit/hyperactivity disorder (ADHD). Randomized adults with ADHD (n = 221) received once-daily d-MPH-ER 20 mg, 30 mg, or 40 mg or placebo for 5 weeks. The primary efficacy variable was change from baseline to final visit in DSM-IV ADHD Rating Scale (ADHD-RS) total score. Secondary efficacy parameters included the proportion of patients with improvement ≥30% in ADHD-RS total score and final scores on Clinical Global Impressions-Improvement (CGI-I) scale. Of 218 evaluable patients, 184 completed the study. All d-MPH-ER doses were significantly superior to placebo in improving ADHD-RS total scores. Placebo scores improved by 7.9; d-MPH-ER, 20 mg, improved by 13.7 (p = .006); d-MPH-ER, 30 mg, improved by 13.4 (p = .012); and d-MPH-ER, 40 mg, improved by 16.9 (p < .001). Overall distribution of CGI-I ratings at final visit was significantly better with each d-MPH-ER dosage than with placebo. There were no unexpected safety or tolerability concerns, based on experience with racemic methylphenidate (MPH) in adults and dexmethylphenidate (d-MPH) in children. Once-daily d-MPH-ER at 20 mg, 30 mg, or 40 mg is a safe and effective treatment for adults with ADHD." @default.
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- W1999461973 date "2007-06-01" @default.
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- W1999461973 title "Efficacy and Safety of Dexmethylphenidate Extended-Release Capsules in Adults with Attention-Deficit/Hyperactivity Disorder" @default.
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- W1999461973 doi "https://doi.org/10.1016/j.biopsych.2006.07.032" @default.
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