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Guiding Dose Increases in Patients Incompletely Responsive to Usual Doses of Atomoxetine

Guiding Dose Increases In Patients Incompletely Responsive to Usual Doses of Atomoxetine by Determining Plasma Atomoxetine Concentrations: a Randomized, Double-Blind Study

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00485407
Enrollment
377
Registered
2007-06-13
Start date
2003-07-31
Completion date
2005-06-30
Last updated
2007-11-01

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

Conditions

Attention Deficit Hyperactivity Disorder

Brief summary

The purpose of this trial is to test the value of dose increases in patients with residual ADHD symptoms after treatment with the usual target dose of atomoxetine

Interventions

DRUGAtomoxetine Hydrochloride

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
6 Years to 16 Years
Healthy volunteers
No

Inclusion criteria

* Outpatients who are at least 6 years of age and not more than 16 years of age at Visit 1 * Patients must meet DSM-IV diagnostic criteria for ADHD (any subtype) * Patients must have laboratory results showing no significant abnormalities (significant would include laboratory deviations requiring acute medical intervention or further medical evaluation) * Patients must be of normal intelligence as assessed by the investigator (that is, without a general impairment of intelligence and likely, in the investigator's judgment, to achieve a score of greater than or equal to 70 on an IQ test) * Patients must be able to swallow capsules

Exclusion criteria

* Patients who weigh less than 25 kg or greater than 70 kg at study entry * Patients with current or past Bipolar I or II disorder, psychosis, autism, Asperger's syndrome, or pervasive developmental disorder * Patients with a history of any seizure disorder (other than febrile seizures) or patients who have taken (or are currently taking) anticonvulsants for seizure control * Patients with a history of severe allergies to more than 1 class of medications or multiple adverse drug reactions * Patients with cardiovascular disease or other conditions that could be aggravated by an increased heart rate or increased blood pressure

Design outcomes

Primary

MeasureTime frame
Test whether patients treated with atomoxetine 1.2 mg/kg/day who have sub-optimal clinical responses and peak plasma atomoxetine levels no higher than 800 ng/mL will benefit from a dose increase to 2.4 mg/kg/day

Secondary

MeasureTime frame
Assess the relationship between plasma atomoxetine concentration levels and ADHD symptom response
Compare the efficacy of atomoxetine up to 2.4 mg/kg/day with atomoxetine at 1.2 mg/kg/day in reducing residual ADHD symptoms
Assess the safety and tolerability of atomoxetine at doses up to 2.4 mg/kg/day compared to 1.2 mg/kg/day in patients with peak plasma atomoxetine concentration levels no higher than 800 ng/mL as assessed by AEs elicited during open-ended questioning

Countries

Canada, United States

Outcome results

None listed

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