Objective: To evaluate the efficacy and safety of individualized dosing within the approved dose range for osmotic-release oral system (OROS) methylphenidate hydrochloride in adults with attention-deficit/hyperactivity disorder (ADHD).
Methods: A double-blind, 6-week trial was conducted between July 2009 and February 2010 at 35 US sites. Adults with ADHD (DSM-IV diagnostic criteria) and a screening ADHD Investigator Symptom Rating Scale (AISRS) score > 24 were randomly assigned to OROS methylphenidate 18 mg or matching placebo. Treatment dose could be increased at 18 mg increments, up to 72 mg/d, until an optimal dose was achieved. AISRS score changes from baseline to end point (primary outcome) were analyzed using analysis of covariance.
Results: At baseline, the intent-to-treat population of 169 OROS methylphenidate and 172 placebo subjects (mean age = 35.8 years) had mean (standard deviation [SD]) AISRS scores of 37.8 (6.94) and 37.0 (7.51), respectively. OROS methylphenidate-treated subjects exhibited a significantly greater mean (SD) AISRS score improvement than placebo subjects (-17.1 [12.44] vs -11.7 [13.30]; P < .001). In general, OROS methylphenidate-treated subjects experienced greater improvements than placebo subjects in secondary measures of symptom frequency, cognitive function, work productivity, and quality-of-life. Little effect of OROS methylphenidate was observed in exploratory sleep assessments. The adverse event pattern was similar to previous reports of stimulants in adults with ADHD.
Conclusions: OROS methylphenidate treatment with individualized doses titrated to achieve symptom remission demonstrated greater ADHD symptom reduction than placebo treatment. These data support the overall efficacy of OROS methylphenidate treatment in the management of adults with ADHD and provide new possibilities for additional intervention.
Trial Registration: ClinicalTrials.gov identifier: NCT00937040.
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http://dx.doi.org/10.4088/JCP.15m10348 | DOI Listing |
Brain Behav
November 2024
Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden.
Trials
January 2024
Division of Prison Health, Geneva University Hospitals, Geneva, Switzerland.
Background: Attention-deficit hyperactivity disorder (ADHD) is characterized by difficulty paying attention, poor impulse control, and hyperactive behavior. It is associated with several adverse health and social outcomes and leads to an increased risk of criminality and recidivism. Worldwide, ADHD is thus highly prevalent in prisons.
View Article and Find Full Text PDFEur Addict Res
February 2024
Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden.
Introduction: Attention deficit/hyperactivity disorder (ADHD) with co-occurring substance use disorder (SUD) is associated with poor treatment outcomes. Two randomized controlled trials, utilizing robust doses of stimulants, demonstrated a significant effect on treatment outcomes in patients with ADHD/SUD. This study aimed to investigate differences in executive functioning and explore the dose-dependent effect of OROS-methylphenidate (MPH) in patients with comorbid ADHD and amphetamine use disorder (ADHD+AMPH) and patients with ADHD only.
View Article and Find Full Text PDFNeuropsychopharmacol Rep
December 2023
Department of Hospital Pharmacy, Hirosaki-Aiseikai Hospital, Hirosaki-shi, Aomori, Japan.
We present the case of a patient, a boy of 16 years of age at initial presentation, with kleptomania, an impulse disorder characterized by an impulse to steal unneeded items, and attention-deficit hyperactivity disorder (ADHD). The patient's parents reported that he would frequently impulsively steal items and money that he did not need. Cognitive and physical assessments revealed no abnormalities, and the patient had no history of substance abuse.
View Article and Find Full Text PDFPsychiatry Investig
September 2023
Department of Child and Adolescent Psychiatry, Hamidiye Etfal Training and Research Hospital, Istanbul, Türkiye.
Objective: Attention deficit/hyperactivity disorder (ADHD), whose definition, diagnosis and treatment has been the subject of debate in the scientific community for a long time, is the most common neurobehavioral disorder in childhood. There are many studies on the pathophysiology of attention deficit. However, there is no study in the literature based on direct or indirect measurement of cerebral venous circulation in ADHD, and the effect of methylphenidate (MPH) treatment on cerebral venous circulation.
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