Attention-Deficit/Hyperactivity Disorder (ADHD) Clinical Trial
Official title:
A Phase IIa, Randomized, Double-Blind, Placebo-Controlled, Incomplete Block, Two-period, Crossover Clinical Trial to Study the Safety and Efficacy of MK0249, 10 mg, for Adult Patients, Ages 18 to 55, With Attention Deficit Hyperactivity Disorder (ADHD)
Verified date | July 2015 |
Source | Merck Sharp & Dohme Corp. |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Food and Drug Administration |
Study type | Interventional |
The purpose of this study is to investigate the safety and efficacy of an investigational treatment for Attention Deficit Hyperactivity Disorder (ADHD) when compared to placebo.
Status | Completed |
Enrollment | 72 |
Est. completion date | April 2008 |
Est. primary completion date | April 2008 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 55 Years |
Eligibility |
Inclusion Criteria: - Patient is between 18 and 55 years of age (inclusive) - Patient is an adult with a current DSM-IV diagnosis of ADHD of inattentive or combined subtype, as assessed via a structured interview using the ACDS and AISRS - Females of child-bearing potential must use acceptable methods of birth control during the study and for 1 month post-therapy Exclusion Criteria: - Patient has a history of a neurological disorder resulting in ongoing impairment - Patient has a lifetime history of a psychotic disorder, bipolar disorder, or post-traumatic stress disorder - Patient has evidence of ongoing depression - Patient is sensitive or allergic to methylphenidate - Patient has glaucoma - Patient has a previous history of narrowing or blockage of the GI tract - Patient has a history of a sleep disorder (e.g., insomnia, sleep apnea, nightmares, or night terrors) within 6 months prior to screening - Patient has a history of a cardiovascular disorder within 6 months prior to screening - Patient has moderate or severe persistent asthma - Patient has a history of substance abuse or dependence not in sustained full remission for at least one year according to DSM-IV - Patient has taken part in a research study within the past 30 days of signing informed consent |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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Merck Sharp & Dohme Corp. |
Herring WJ, Wilens TE, Adler LA, Baranak C, Liu K, Snavely DB, Lines CR, Michelson D. Randomized controlled study of the histamine H3 inverse agonist MK-0249 in adult attention-deficit/hyperactivity disorder. J Clin Psychiatry. 2012 Jul;73(7):e891-8. doi: 10.4088/JCP.11m07178. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Baseline AISRS | Baseline values for all treatment groups are equal because the constrained longitudinal data analysis (cLDA) model was used (Liang and Zeger, 2000, Sankhya: The Indian Journal of Statistics, Series B 62, 134-148). |
Baseline | No |
Primary | Mean Change From Baseline in the Adult Attention Deficit Hyperactivity Disorder Investigator Symptom Rating Scale (AISRS) Total Score After 4 Weeks of Treatment | The AISRS total score consists of 18 items from the original Attention Deficit Hyperactivity Disorder Rating Scale (ADHD-RS) which were derived based on Diagnostic and Statistical Manual-4 (DSM-IV) criteria for ADHD. The ADHD-RS include 9 items that address symptoms of inattention and 9 items that address symptoms of impulsivity and hyperactivity. Each item is rated from 0 to 3. The AISRS total score can range from 0 to 54. A higher score corresponds to a worse severity of ADHD. | after 4 weeks of treatment | No |
Secondary | Mean Change From Baseline in the AISRS Inattentive Subscale Score After 4 Weeks of Treatment | The AISRS inattentive subscale score consists of 9 items from the original ADHD-RS which address inattention. Each item is rated from 0 to 3. The AISRS inattentive subscale score can range from 0 to 27. A higher score corresponds to a worse severity of ADHD inattentiveness. Data not reported due to failure of primary hypothesis and program termination. |
after 4 weeks of treatment | No |
Secondary | >/= 30% AISRS Total Score Responder Rate After 4 Weeks of Treatment; | The AISRS total score consists of 18 items from the original ADHD-RS which were derived based on DSM-IV criteria for ADHD. The ADHD-RS include 9 items that address symptoms of inattention and 9 items that address symptoms of impulsivity and hyperactivity. Each item is rated from 0 to 3. The AISRS total score can range from 0 to 54. A higher score corresponds to a worse severity of ADHD. Data not reported due to failure of primary hypothesis and program termination. |
after 4 weeks of treatment | No |
Secondary | >/=1-point Improvement in the CGI-S Score | The Clinical Global Impression - Severity of Illness Scale (CGI-S) is administered by a trained investigator who rates the severity of a patient's illness at the time of assessment, relative to the investigator's past experience with patients who have an ADHD diagnosis. The scores range from 1 to 7. Higher numbers correspond to more severe illness. Data not reported due to failure of primary hypothesis and program termination. |
4 weeks of treatment | No |
Secondary | Mean Change From Baseline in the AISRS Hyperactive/Impulsive Subscale Score | The Adult Attention Deficit Hyperactivity Disorder Investigator Symptom Rating Scale (AISRS) hyperactive/impulsive subscale score consists of 9 items from the original Attention Deficit Hyperactivity Disorder Rating Scale (ADHD-RS) which address hyperactivity and impulsivity. Each item is rated from 0 to 3. The AISRS hyperactive/impulsive subscale score can range from 0 to 27. A higher score corresponds to a worse severity of ADHD hyperactivity/impulsivity. Data not reported due to failure of primary hypothesis and program termination |
4 weeks of treatment | No |
Secondary | Mean Change From Baseline in the Conners' Adult ADHD Rating Scale - Observer Screening Version (CAARS-O:SV) Total ADHD Symptom Score. | Conners' Adult ADHD Rating Scale - Observer Screening version (CAARS-O: SV) evaluates DSM-IV-oriented inattention, impulsivity and hyperactivity as well as measures of self-concept. It is a 30-item scale administered by a trained investigator or rater with "cue" questions. Each item is scored from 0 to 3 with higher scores corresponding to worse symptoms. The total score can range from 0 to 90. Data not reported due to failure of primary hypothesis and program termination. |
4 weeks of treatment | No |
Secondary | Mean Change From Baseline in the Clinical Global Impressions-severity of Illness Scale(CGI-S) Score | The Clinical Global Impression - Severity of Illness Scale (CGI-S) is administered by a trained investigator who rates the severity of a patient's illness at the time of assessment, relative to the investigator's past experience with patients who have an ADHD diagnosis. The scores range from 1 to 7. Higher numbers correspond to more severe illness. Data not reported due to failure of primary hypothesis and program termination. |
4 weeks of treatment | No |
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