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Trial record 1 of 6 for:    donepezil and autism
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The Effect of Donepezil (Aricept(Registered Trademark)) on REM Sleep in Children With Autism

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ClinicalTrials.gov Identifier: NCT00695136
Recruitment Status : Completed
First Posted : June 11, 2008
Results First Posted : April 24, 2013
Last Update Posted : April 24, 2013
Information provided by (Responsible Party):

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment;   Masking: None (Open Label)
Conditions: Autism
Cognition Disorder
Interventions: Drug: Donepezil hydrochloride
Behavioral: Increase REM sleep percentage

  Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
No text entered.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
Children were screened with polysomnography and 8 of 16 subjects were found to have low REM sleep% and were eligible to continue with the study. One of the 8 elected not to participate in the dose-finding drug administration.

Reporting Groups
Open Label Single Arm

The children start by taking 1.25 mg of donepezil for 2 to 4 weeks. Those whose REM sleep increases to normal levels stay on 1.25 mg of donepezil for 8 more weeks. That ends their participation in the study.

Children whose REM sleep does not increase to normal on 1.25 mg of donepezil are given a higher dose (2.5 mg) for 2 to 4 weeks. Those whose REM sleep does not increase to normal on 2.5 mg of donepezil take 5 mg of the drug for 2 to 4 weeks. Children whose REM sleep does not increase to normal on 5 mg of donepezil stop the medication and end their participation in the study.

Participant Flow:   Overall Study
    Open Label Single Arm
STARTED   7 [1] 
Withdrawal by Subject                1 
unrelated adverse event                1 
[1] 7

  Baseline Characteristics

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
16 subjects completed screening and had baseline data. However, only 8 of them were eligible for further study participation and only 5 completed the drug and provided data for analysis.

Reporting Groups
Open Label Single Arm

Single group study of Donepezil

Increase REM sleep percentage :

Donepezil hydrochloride :

Baseline Measures
   Open Label Single Arm 
Overall Participants Analyzed 
[Units: Participants]
[Units: Participants]
<=18 years   5 
Between 18 and 65 years   0 
>=65 years   0 
[Units: Years]
Mean (Standard Deviation)
 5.08  (1.62) 
[Units: Participants]
Female   0 
Male   5 
Region of Enrollment 
[Units: Participants]
United States   5 

  Outcome Measures

1.  Primary:   Change in Percentage of Time That Subjects With Autism Spend in REM Sleep.   [ Time Frame: 1 month (from baseline to 1.25 mg dose) ]

  Serious Adverse Events

  Other Adverse Events

  Limitations and Caveats

Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
No controls and small number of patients.

  More Information

Certain Agreements:  
All Principal Investigators ARE employed by the organization sponsoring the study.

Results Point of Contact:  
Name/Title: Susan E. Swedo, MD
Organization: Pediatrics & Developmental Neuroscience Branch, NIMH
phone: 301-496-5323
e-mail: swedos@mail.nih.gov


Responsible Party: Susan Swedo, M.D., National Institutes of Health Clinical Center (CC)
ClinicalTrials.gov Identifier: NCT00695136     History of Changes
Other Study ID Numbers: 080154
08-M-0154 ( Other Identifier: NIH Protocol Number )
First Submitted: June 10, 2008
First Posted: June 11, 2008
Results First Submitted: April 22, 2013
Results First Posted: April 24, 2013
Last Update Posted: April 24, 2013