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A Study to Examine the Progression of Attention-Deficit Hyperactivity Disorder (ADHD) Drug Treatment and to Analyze Associated Factors

Prospective Follow-Up Observational Study to Examine the Progression of ADHD Drug Treatment and to Analyze Associated Factors

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01624649
Enrollment
289
Registered
2012-06-21
Start date
2012-02-29
Completion date
2014-04-30
Last updated
2015-06-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Attention-deficit Hyperactivity Disorder

Keywords

Attention-deficit hyperactivity disorder, Developmental disorder, Atomoxetine, Methylphenidate, Psychiatric disorder

Brief summary

The purpose of this observational study is to explore the efficacy of methylphenidate hydrochloride in children and adolescents diagnosed with attention-deficit hyperactivity disorder (ADHD) by Kiddie-scheduled for affective disorders (SADS)-present and life time version (K-SADS-PL).

Detailed description

This is a 1-year open-label (all people involved know the identity of the assigned drug), multicenter, single arm, prospective, observational study to explore under natural setting the efficacy of drug treatment in children and adolescents diagnosed with ADHD by K-SADS-PL (K-SADS-PL is a tool used for ADHD diagnosis. Patient may be diagnosed with ADHD by using K-SADS-PL to check if he or she meets the criteria according to Diagnostic and Statistical Manual of Mental Disorders & edition (DSM-IV). After obtaining informed consent, investigator will prescribe stimulant or non-stimulant ADHD treatment medications (ie, Immediate release \[IR\]/extended release \[ER\]/osmotic release oral system (OROS) methylphenidate, atomoxetine). Efficacy and safety assessments will be performed at 4, 12, 24, 36, and 52 weeks after the first day of giving study drug. Progression of symptom improvement and adherence will be investigated and associated variables (ie, demographic, clinical, familial and treatment factors) will be analyzed.

Interventions

DRUGMethylphenidate hydrochloride

Form = tablet, route = oral, administered as a flexible dosage

DRUGAtomoxetine

Form = tablet, route = oral;

Sponsors

Janssen Korea, Ltd., Korea
Lead SponsorINDUSTRY

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
6 Years to 15 Years
Healthy volunteers
No

Inclusion criteria

* Has been diagnosed with attention-deficit hyperactivity disorder (ADHD) by Kiddie-SADS-present and life time version (K-SADS-PL) * Have not received methylphenidate or atomoxetine within 3 months prior to screening.

Exclusion criteria

* Has intelligence quotient (IQ) ≤70 assessed by comprehensive attention test (CAT) at screening diagnosed with congenital disorders * Has had history of acquired brain damage (eg, cerebral palsy) * Has had diagnosed with convulsive disabilities or other neurological disease or dysesthesia * Has had developmental disabilities such as autistic spectrum disorder * Has had history of schizophrenia, bipolar, or other pediatric psychotic disorder, and obsessive compulsive disorder * Has had linguistic disability and had diagnosed with tic disorder that requires additional drug treatment.

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in the ADHD Rating Scale (ARS)Baseline and Week 52The ADHD Rating Scale (ARS) - Parent Version: ARS contains 18 items, in which parent version of the questionnaire is based on home behaviors.

Secondary

MeasureTime frameDescription
Clinical Global Impression-Severity (CGI-S)Baseline to Week 52CGI-S is a 7-point scale that requires the clinician to rate the severity of the patient's illness at the time of assessment, relative to the clinician's past experience with patients who have the same diagnosis. Ratings are 1 = normal/not at all ill; 2 = borderline mentally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; 7 = extremely ill.
Adherence RateWeek 4 to Week 52Pill count at each visit; at least 50% adherence rate will be considered clinically relevant.
Clinical Global Impression- Improvement (CGI-I)Baseline and Week 52CGI-I is a 7 point scale that requires the clinician to assess how much the patient's illness has improved or worsened relative to a baseline state at the beginning of the intervention. It is rated as 1, every much improved; 2, much improved; 3, minimally improved; 4, no change; 5, minimally worse; 6, much worse; or 7, very much worse.
Academic Performance Rating Scale (APRS)Baseline, Week 24 and Week 52APRS is a 19-item scale, where parents rate the child's academic abilities and behaviors on a 5-point scale. Higher scores indicate greater academic performance.
Symptoms Checklist (SCL-90) for Parent DepressionBaseline, Week 24 and Week 52
Comprehensive Attention Test (CAT)Baseline, Week 24 and Week 52CAT is a computerized test which includes attention task, sustained attention to response, flanker task, divided attention task, and spatial working memory task.

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026