A Comparative Effectiveness Study Evaluating OROS Methylphenidate HCl, Ritalin (Methylphenidate HCl), and Placebo for the Treatment of Attention Deficit Hyperactivity Disorder in Children

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00269789
Recruitment Status : Completed
First Posted : December 26, 2005
Last Update Posted : June 10, 2011
Information provided by:
Alza Corporation, DE, USA

December 22, 2005
December 26, 2005
June 10, 2011
March 1998
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IOWA Conners Inattention/Overactivity subscale ratings by the Community School Teacher on Days 6, 13 and 20, evaluating study days 2 - 6, 9 - 13, and 16 - 20, respectively.
Same as current
Complete list of historical versions of study NCT00269789 on Archive Site
IOWA Conners Inattention/Overactivity and Oppositional/Defiance subscale ratings; SKAMP attention and deportment ratings; Global assessments; Accuracy and completion on assigned academic tasks; Peer interactions ratings; Incidence of adverse events
Same as current
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A Comparative Effectiveness Study Evaluating OROS Methylphenidate HCl, Ritalin (Methylphenidate HCl), and Placebo for the Treatment of Attention Deficit Hyperactivity Disorder in Children
Comparative Crossover Study of OROS (Methylphenidate HCl), Ritalin, and Placebo in Children With ADHD
The purpose of this study is to compare the effectiveness (onset of effect, time to loss of effect, and overall efficacy) of methylphenidate given as an OROS® (methylphenidate HCl) formulation, compared to immediate-release Ritalin® and placebo for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) in children using standardized attention and behavior scales, and other assessments. Both OROS® Methylphenidate HCl and Ritalin® contain the central nervous system stimulant, methylphenidate HCl.
Attention Deficit Hyperactivity Disorder (ADHD) represents the most common neurobehavioral disorder in children, affecting 3% to 5% of the school-age population. This is a double-blind, double-dummy, randomized, placebo-controlled, active-controlled, crossover trial in children with ADHD, to compare the safety and effectiveness (onset of effect, time to loss of effect and overall efficacy) of OROS® Methylphenidate HCl with standard immediate-release Ritalin® and placebo. During this study, patients receive each of the three treatments (OROS® Methylphenidate HCl 18, 36 or 54 milligrams per day, Ritalin® 5, 10 or 15 milligrams three times per day, or placebo) for 7 days, and are assigned to one of three dosage levels depending upon their prestudy methylphenidate dose and regimen. The total study participation for each patient will be 21 days. Since ADHD is manifested in a variety of settings and can affect attention and behavior, this study assesses efficacy in home, community school, and laboratory school settings using numerous assessments designed to evaluate various aspects of the disorder. These assessments are completed by a variety of raters, including the parents/caregivers, community school teachers, laboratory school teachers and the laboratory school counselor. The primary measure of effectiveness is the community school teacher's rating on the IOWA Conners Inattention/Overactivity subscale. Additional measures of effectiveness include IOWA Conners (Inattention/Overactivity and Oppositional/Defiance subscale) ratings, SKAMP attention and deportment ratings, peer interaction and other behavioral ratings, global assessments, accuracy and productivity of independent assigned academic seatwork, and assessments of positive and negative social behaviors, classroom rule violations and disruptive behaviors. Safety evaluations include the incidence of adverse events, vital signs, sleep quality, appetite, and the presence/severity of tics (hard-to-control, repeated twitching of any parts of the body or hard-to-control repeating of sounds or words). Patients will be given oral doses of: OROS® (methylphenidate HCl) either 1, 2 or 3 of the 18 milligram tablets once daily, Ritalin® 5, 10, or 15 mg (encapsulated/single capsule) three times per day, or placebo. There are three treatment groups, each group dosing for 7 days for a total of 21 days on study.
Phase 3
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double
Primary Purpose: Treatment
Attention Deficit Hyperactivity Disorder
  • Drug: Ritalin
  • Drug: OROS Methylphenidate HCl
  • Drug: Placebo
  • Experimental: 001
    OROS Methylphenidate HCl
    Intervention: Drug: OROS Methylphenidate HCl
  • Active Comparator: 002
    Intervention: Drug: Ritalin
  • Placebo Comparator: 003
    Intervention: Drug: Placebo
Pelham WE, Gnagy EM, Burrows-Maclean L, Williams A, Fabiano GA, Morrisey SM, Chronis AM, Forehand GL, Nguyen CA, Hoffman MT, Lock TM, Fielbelkorn K, Coles EK, Panahon CJ, Steiner RL, Meichenbaum DL, Onyango AN, Morse GD. Once-a-day Concerta methylphenidate versus three-times-daily methylphenidate in laboratory and natural settings. Pediatrics. 2001 Jun;107(6):E105.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
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May 1998
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Inclusion Criteria:

  • Patients with a diagnosis of one of the three subtypes of Attention Deficit Hyperactivity Disorder (ADHD) verified by both a parent/child interview and a teacher assessment using SNAP-IV questionnaires
  • taking 5 - 20 mg of immediate-release methylphenidate (Ritalin®) at least twice a day, 20 - 60 mg of sustained-release methylphenidate (Ritalin-SR®) per day, or a combination of immediate-release and sustained-release methylphenidate up to a daily dose not exceeding 60 mg
  • having used methylphenidate for at least 3 months at some time in the past and have been on the same dose for the previous 4-week period without any significant adverse experiences, considered to be positive responders to methylphenidate therapy, and agreeing to take only the supplied study drug as treatment for ADHD during the three-week treatment phase of the study
  • able to comply with the study visit schedule and whose parent(s) and teacher are willing and able to complete the protocol-specified assessments, including behavior modification procedures
  • agreeing not to ingest any caffeine containing beverages (e.g., coffee or soda) or foods (e.g., chocolate) on days 7, 14, and 21 of the study

Exclusion Criteria:

  • Patients having clinically significant gastrointestinal problems, including narrowing of the gastrointestinal tract
  • considered markedly anxious, tense, agitated, or depressed, having psychotic disorders, a history of seizures, or having a diagnosis of Tourette's syndrome
  • whose primary treatment focus is oppositional-defiant disorder, conduct disorder, or tics, or whose primary treatment focus is other psychiatric conditions such as depressive disorders, bipolar disorders, or other mood disorders
  • having a mean of two blood pressure measurements (systolic or diastolic) equal to or greater than the 95th percentile for age, sex, and height
  • if female, have begun menstruation
Sexes Eligible for Study: All
6 Years to 12 Years   (Child)
Contact information is only displayed when the study is recruiting subjects
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Alza Corporation, DE, USA
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Study Director: Alza Corporation Clinical Trial ALZA
Alza Corporation, DE, USA
June 2011

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP