Effects of Donepezil and Memantine on Cognitive Functions After a Sleep Deprivation Challenge in Healthy Volunteers
Information source: Qualissima
ClinicalTrials.gov processed this data on August 23, 2015 Link to the current ClinicalTrials.gov record.
Condition(s) targeted: Healthy
Intervention: Modafinil (Drug); Donepezil (Drug); Memantine (Drug)
Phase: Phase 1
Status: Completed
Sponsored by: Qualissima Official(s) and/or principal investigator(s): Christine Audebert, Principal Investigator, Affiliation: CIC CPCET
Summary
The aim of this study is to assess the utility of sleep deprivation as a potential model for
prediction of clinical efficacy using a combination of cognitive physiological endpoints.
Clinical Details
Official title: Effects of 15-day Donepezil and Memantine on Cognitive Functions After a 24 Hours Sleep Deprivation Challenge in Healthy Volunteers: a Double-blind, Placebo-controlled, Randomised, Cross-over Study, With Modafinil as Positive Control
Study design: Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary outcome: Change in N-back
Secondary outcome: Other cognitive assessmentsfMRI Rest-EEG and P300 after auditory-ball paradigm Rest-EEG and P300 after auditory-ball paradigm Rest-EEG and P300 after auditory-ball paradigm
Detailed description:
BACKGROUND:
With the inherent difficulty of detecting significant improvements in cognitive performance
in normal healthy subjects, it is presently incredibly hard to predict and select
efficacious agents early in the drug development process. As such the potential success of
novel therapeutic agents for the symptomatic relief of Alzheimer's disease (AD) is largely
unknown until the drugs enter relatively large studies, assessing clinical outcome over at
least a six month period. To try to overcome this issue, clinical scientists have focused
their attention to the development of cognitive endpoints/biomarkers that can be detected in
a number of experimental paradigms where cognitive impairments akin to those observed in AD,
have been artificially induced. Based on the scientific literature, the use of total Sleep
Deprivation in healthy volunteers seems to be a good paradigm to assess potential anti-AD
agents.
It is the first multicenter study that combines 3 complementary approaches via a
standardization of the sleep deprivation model: cognitive evaluations, imaging and
neurophysiology.
STUDY OBJECTIVE(S)
Primary:
The study aim is to assess the utility of sleep deprivation as a potential model for
prediction of clinical efficacy using a combination of cognitive physiological endpoints.
The main goals are to test the effects of donepezil and memantine treatment on cognitive
functions in young healthy deprived subjects and to assess the potential restoring effect of
the two drugs on cognitive functions induce by sleep deprivation.
Secondary:
- To assess that Sleep Deprivation model results in cognitive impairments
- To determine the sensitivity of the model by testing the restoring effects of one
single dose of modafinil
- To investigate the reversal effect of modafinil on EEG under sleep deprivation.
- To investigate the reversal effect of modafinil on fMRI acquisitions under sleep
deprivation (subjects that will be included in Toulouse will not have fMRI)
- To investigate the influence of donepezil and memantine on EEG under sleep deprivation.
- To investigate the influence of donepezil and memantine on fMRI acquisitions under
sleep deprivation (subjects that will be included in Toulouse will not have fMRI).
STUDY DESIGN The study is a phase I, multicentric (Lille, Marseille, Toulouse), randomised,
placebo-controlled, cross-over design.
STUDY POPULATION Healthy young male subjects from 25 to 40 years-old (36 subjects
randomized)
PRIMARY ENDPOINT(S) AND MAIN SECONDARY ENDPOINT(S)
Primary endpoint:
N-back test
Secondary endpoints:
- Other cognitive assessments
- Imaging
- Neurophysiology
Eligibility
Minimum age: 25 Years.
Maximum age: 40 Years.
Gender(s): Male.
Criteria:
Inclusion Criteria:
Demography
1. Healthy male subjects aged between 25 and 40 years-old inclusive
2. BMI between 18 kg/m2 to 27 kg/m2
Health status
3. The subjects is in good health on the basis of the medical interview (medical
history, symptoms) and the physical examination, vital signs and the results of blood
chemistry and hematology.
4. ECG (12 leads) normal (120 < PR < 200 ms; QRS < 120ms; QTcF < 450ms) and/or without
clinically relevant impairments as judged by investigator.
5. The subject does not smoke or smokes a maximum of 5 cigarettes per day and is able to
stop during the days of the study.
6. No claustrophobia (fMRI)
7. The subject has normal visual and auditory abilities
Specific to the study
8. Habitual good sleeping: sleeping on average 6,5 to 9 hours each night in the past
month assessed by the Pittsburgh Quality Index.
9. Regular sleeping hours whereby they sleep no later than 1 am and rise before 9 am in
the past month assessed by the Pittsburgh Quality Index.
10. The subject can complete the neuropsychological test battery during the training
session
11. The subject corresponds to an extravert personality according to the Eysenck
Personality Inventory
12. The subject is right-handed (Edinburgh Handedness Inventory, Imaging measurement
condition).
Regulations
13. The subjects is able to read and understand the Information Form and comply with the
protocol instructions and restrictions
14. Subjects are covered by a social insurance
15. Subjects have provided written informed consent
Exclusion Criteria:
Medical history and clinical status
1. History or presence of psychiatric illness assessed by a psychiatric interview with
the Mini-International Neuropsychiatric Interview (M. I.N. I-DSM IV).
2. History or presence of neurologic illness or others illnesses (general medical
interview)
3. The subject has caffeine intake of greater than 5 drinks per day or excessive energy
drink type intake.
4. The subject has an orthostatic blood pressure reduction > 20 mm Hg, based on a
difference of systolic blood pressure between supine and after standing for 3
minutes.
General conditions
5. The patient, in the opinion of the investigator, is unlikely to comply with the study
protocol or is unsuitable for any other reason
6. The subject participates to another clinical trial or is still being within a washout
period of a previous clinical trial, or subjects who received more than 4500 euros in
the previous 12 months.
Specific to the study
7. History or presence of daytime sleepiness with the Epworth scale (score > 10,
pathological sleepiness).
8. History of obstructive sleep apnea assessed by the Berlin questionnaire.
9. History of periodic leg movements assessed by Restless Legs Syndrome questionnaire.
10. Extreme chronotypes: score at the Horne Ostberg scale (< 31 or > 69).
11. Jet lag > 2 hours in the last two weeks.
12. No time-shifted work during the last month.
Locations and Contacts
CIC, Lille, France
MEDES, Toulouse, France
Additional Information
Starting date: November 2011
Last updated: February 3, 2015
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