Clinical trial NCT00556959: Study Evaluating the Safety and Efficacy of CLONICEL® to Treat Children and Adolescents With Attention Deficit Hyperactivity Disorder (ADHD)
Official title: A Phase III, Dose-Response Evaluation of the Efficacy and Safety of CLONICEL® (Clonidine HCl Sustained Release) vs. Placebo in the Treatment of Children and Adolescents With Attention Deficit Hyperactivity Disorder (ADHD)
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE3
Conditions: Attention Deficit Disorder With Hyperactivity
Keywords: ADHD
Clonidine
Attention Deficit
Hyperactivity
CLONICEL
Addrenex
Lead sponsor: Addrenex Pharmaceuticals, Inc.
Sponsor class: INDUSTRY
First posted: 2007-11-12
Enrollment: 236
Sex: ALL
Minimum age (years): 6
Maximum age (years): 17
Standard ages: CHILD
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The purpose of this study is to determine whether CLONICEL® (clonidine HCl sustained release) is a safe and effective treatment for children and adolescents with attention deficit hyperactivity disorder (ADHD).

Detailed description: Clonidine is a centrally acting alpha2 adrenergic agonist that has been used effectively since the early 70s to treat mild to moderate hypertension. In addition to hypertension, clonidine has been evaluated and used extensively for several other indications, including attention deficit hyperactivity disorder (ADHD).

An easy to administer clonidine formulation is needed that retains the efficacy of the current oral formulation but has an improved safety profile. The current trial will investigate the safety and efficacy of clonidine delivered from the sustained release formulation of CLONICEL in the treatment of children and adolescents with ADHD.

Eligibility criteria: Inclusion Criteria:

* Male or female between 6 and 17 years of age, inclusive
* Diagnosis of ADHD of the hyperactive or combined inattentive/hyperactive subtypes according to DSM-IV criteria
* Minimum score of 26 on the ADHDRS-IV questionnaire at Baseline
* General good health as judged by the Principal Investigator
* Body mass index ≥ 5th percentile of the subject's age group according to the CDC growth chart.
* Ability to swallow tablets
* General IQ ≥80 as judged by the Principal Investigator
* Subject as well as parent/guardian able to sign informed assent or consent form.

Exclusion Criteria:

* If female of child-bearing potential, pregnant or lactating or does not agree to use a medically acceptable form of birth control, such as hormonal medication, double-barrier method, or IUD
* Presence of a clinically significant illness or abnormality on physical examination or clinical laboratory evaluations that, in the opinion of the investigator, would increase the safety risks from clonidine administration or interfere with the ability of the patient to take part in the study.
* Presence of clinically significant abnormality on centrally interpreted Electrocardiogram (ECG) readings
* History or presence of a concomitant psychiatric disorder requiring psychotropic medication or a severe concomitant Axis I or Axis II disorder that could interfere with study assessments in the judgment of the Principal Investigator
* History of concomitant conduct disorder (CD)
* History of seizures, except for a single episode of febrile seizure prior to age 2
* History of syncopal episodes
* Presence of a disorder that would interfere with the absorption, metabolism, or excretion of clonidine
* History of intolerance to clonidine, including any dermatologic reaction to transdermal clonidine
* Presence or history of alcohol or drug abuse
* Positive drug screen, with the exception of ADHD drugs
* Use of any investigational drug within 30 days of study start.

Primary outcomes:
measure: ADHDRS-IV
timeFrame: Week 5
Secondary outcomes:
measure: CPRS-L, CGI-S, and CGI-I
timeFrame: Week 5
measure: Adverse Events, Laboratory Assessments, Vital Signs, and ECGs
timeFrame: Throughout Treatment Phase
Other outcomes:
Locations:
city: Gainesville
country: United States
state: Florida
city: Jacksonville
country: United States
state: Florida
city: Miami
country: United States
state: Florida
city: Orlando
country: United States
state: Florida
city: Rochester Hills
country: United States
state: Michigan
city: Clementon
country: United States
state: New Jersey
city: Voorhees
country: United States
state: New Jersey
city: Chapel Hill
country: United States
state: North Carolina
city: Charlotte
country: United States
state: North Carolina
city: Oklahoma City
country: United States
state: Oklahoma
city: Oklahoma City
country: United States
state: Oklahoma
city: Houston
country: United States
state: Texas
city: Lake Jackson
country: United States
state: Texas
Study officials:
affiliation: Addrenex Pharmaceuticals, Inc.
name: Moise A Khayrallah, PhD
role: STUDY_DIRECTOR
References:
citation: Jain R, Segal S, Kollins SH, Khayrallah M. Clonidine extended-release tablets for pediatric patients with attention-deficit/hyperactivity disorder. J Am Acad Child Adolesc Psychiatry. 2011 Feb;50(2):171-9. doi: 10.1016/j.jaac.2010.11.005.