Evaluating The Safety Of Donepezil Hydrochloride (Aricept) For Up To 1 Year In The Treatment Of The Cognitive Dysfunction Exhibited By Children With Down Syndrome - Follow-Up To A 10-Week, Double-Blind, Placebo-Controlled Trial

NCT ID: NCT00675025

Last Updated: 2021-03-29

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

117 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-04-04

Study Completion Date

2008-12-15

Brief Summary

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The purpose of this study is to determine the safety of donepezil hydrochloride (Aricept) in children with Down syndrome who have finished the preceding 10-week, double-blind study of donepezil hydrochloride. Medical tests for drug safety will be conducted at each clinic visit.

Detailed Description

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All children in this study will take donepezil hydrochloride once a day, and will come back to the clinic at 8, 24 and 42 weeks after the study has begun. In between these clinic visits, the clinical staff will telephone the child's parent or caregiver to discuss drug safety observations and possible changes in drug dose. At the end of the study (42 weeks), psychological testing will also be given to determine how well the child is functioning.

Conditions

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Down Syndrome

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Prior Donepezil-DB

All participants started with a dose of 2.5 mg/day (2.5 mL/day). Dose escalations occurred in 2.5 mg/day increments every 2 weeks (steady state levels assumed to have been reached) to a maximum dose of 10 mg/day, according to the participant's weight schedule and the Investigator's judgment of safety and tolerability. Re-titration was done to maintain the blinding of the double-blind study (E2020-A001-219). Doses could be decreased due to tolerability and could be increased or decreased to maintain a maximum dose of 0.1 to 0.2 mg/kg/day based on the participant's weight at clinic visits during the study duration.

Group Type EXPERIMENTAL

Donepezil hydrochloride (Aricept)

Intervention Type DRUG

Liquid form Aricept - 5 mg/5 mL donepezil hydrochloride.

Interventions

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Donepezil hydrochloride (Aricept)

Liquid form Aricept - 5 mg/5 mL donepezil hydrochloride.

Intervention Type DRUG

Other Intervention Names

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Aricept

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of Down syndrome (established during study E2020-A001-220).
* Completion of study E2020-A001-219 (NCT00570128 \[also known as A2501059\]) with no ongoing seroius adverse events and no severe drug reactions.

Exclusion Criteria

* Weight less than 20 kg.
* Clinically significant conditions affecting absorption, distribution or metabolism of the study medication.
* No reliable parent or caregiver, or unwillingness or inability of parent or caregiver to fulfill the requirements of the study.
* Females of childbearing potential who are not practicing an effective means of birth control.
Minimum Eligible Age

10 Years

Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Pfizer

INDUSTRY

Sponsor Role collaborator

Eisai Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Phoenix Children's Hospital

Phoenix, Arizona, United States

Site Status

Child Neurology Associates, PC

Little Rock, Arkansas, United States

Site Status

Midwest Children's Health Research Institute

Los Angeles, California, United States

Site Status

Children's Hospital and Research Center at Oakland

Oakland, California, United States

Site Status

University of California, Irvine Medical Center

Orange, California, United States

Site Status

UCSD Pediatric Pharmacology Research Unit

San Diego, California, United States

Site Status

Rocky Mountain Pediatrics, P.C.

Lakewood, Colorado, United States

Site Status

Neufeld Medical Group, Inc.

Fort Myers, Florida, United States

Site Status

Miami Children's Hospital

Miami, Florida, United States

Site Status

Miami Children's Hospital - Medical Genetics and Neuro-Developmental Center

Miami, Florida, United States

Site Status

Phoenix Children's Hospital

Miami, Florida, United States

Site Status

Clinical Studies Centers, LLC

St. Petersburg, Florida, United States

Site Status

Northwest Clinical Research Center

West Palm Beach, Florida, United States

Site Status

Road Runner Research

Atlanta, Georgia, United States

Site Status

Hurley Medical Center

Flint, Michigan, United States

Site Status

Saint Mary's Health Care

Grand Rapids, Michigan, United States

Site Status

Washington University School of Medicine

Grand Rapids, Michigan, United States

Site Status

Regions Hospital

Saint Paul, Minnesota, United States

Site Status

Northwest Clinical Research Center

St Louis, Missouri, United States

Site Status

Meridien Research

Lincoln, Nebraska, United States

Site Status

Clinical Research Center of New Jersey

Voorhees Township, New Jersey, United States

Site Status

Division of Genetics and Developmental Behavior

Durham, North Carolina, United States

Site Status

Metrohealth Medical Center

Cleveland, Ohio, United States

Site Status

Valko and Associates

Toledo, Ohio, United States

Site Status

Office of Lazlo Mate

Tulsa, Oklahoma, United States

Site Status

Medical Univ of South Carolina

Charleston, South Carolina, United States

Site Status

Vanderbilt Children's Hospital

Nashville, Tennessee, United States

Site Status

Down Syndrome Clinic of Houston

Houston, Texas, United States

Site Status

Alamo City Clinical Research, LLC

San Antonio, Texas, United States

Site Status

Community Research Foundation

San Antonio, Texas, United States

Site Status

Neuropsychiatric Research Center of Southwest Florida

Bellevue, Washington, United States

Site Status

Countries

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United States

Other Identifiers

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A2501060

Identifier Type: OTHER

Identifier Source: secondary_id

E2020-A001-220

Identifier Type: -

Identifier Source: org_study_id

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