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Alzheimer's DiseaseEarly Phase 1NCT01024660

The Effect of Cognitive Function as Measured by Repeated Cognitive Measures After 12 Weeks Treatment With Donepezil

A Early Phase 1 study testing Donepezil in people with Alzheimer's Disease, run by AstraZeneca at 18 sites in 4 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine if there is improvement or measurable change in cognition after only one month of treatment with donepezil when using a computerized test battery. The results at one month will be compared with the results at 3 months to evaluate this. Read more about this study

Who is it for?
Ages 55 to 85 years
Conditions the study is for
Alzheimer's Disease
What is being tested?
Donepezil
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
155 participants
Where
18 sitesin 4 countries
Study dates
Dec 2009to Jan 2011
Phase
Early Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 55 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Clinical diagnosis of probable AD according to NINCDS-ADRDA criteria.
  • The patient should live with an appropriate caregiver at home, or in a community dwelling. A caregiver should be capable of accompanying the patient to clinic visits or attending study visits in the patient's home.
  • Patient and caregiver should understand, speak, and read local language.

Who cannot join

  • Significant neurological disease or dementia other than AD, e.g., mixed dementia, frontotemporal dementia, and Parkinson's Disease.
  • Females of child bearing potential
  • Impaired vision or hearing

Trial locations and contacts

18 sites in 4 countries.

18 sites in 4 countries

Poland8 sites
  • Research Site

    Chojnice

  • Research Site

    Gdansk

  • Research Site

    Kalisz

  • Research Site

    Piła

  • Research Site

    Poznan

  • Research Site

    Ścinawa

  • Research Site

    Sopot

  • Research Site

    Warsaw

Other trials in Poland

Canada5 sites
  • Research Site

    Gatineau, Quebec

  • Research Site

    Montreal, Quebec

  • Research Site

    Ottawa, Ontario

  • Research Site

    Québec, Quebec

  • Reearch Site

    Québec

Other trials in Canada

Peru3 sites
  • Research Site

    Callao, Lima

  • Research Site

    Callao

  • Research Site

    Lima

Other trials in Peru

South Africa2 sites
  • Research Site

    Cape Town, Western Cape

  • Research Site

    Roodepoort

Other trials in South Africa

About this study

Official title: A Randomised, Double-blind, Placebo-controlled, Parallel Design, Multicentre Study in Patients With Mild to Moderate Alzheimer's Disease to Investigate the Effect on Cognitive Function as Measured by Repeated CogState Testing in Relation to Effects on Traditional Cognitive Measures After 12 Weeks

The purpose of this study is to determine if there is improvement or measurable change in cognition after only one month of treatment with donepezil when using a computerized test battery. The results at one month will be compared with the results at 3 months to evaluate this.

Being tested
Donepezil, Placebo to match Aricept
Keywords
Patients with Mild to Moderate Alzheimer's Disease
Medical subject headings
Alzheimer Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DonepezilDrug

    Also called Aricept

    5 mg capsule, orally, once daily, first 14 days of treatment

  • DonepezilDrug

    Also called Aricept

    10 mg, orally, once daily, for remaining 70 days of treatment

  • Placebo to match AriceptDrug

    Placebo capsule, orally, 84 days of treatment

Study groups in NCT01024660
Study groupRoleWhat they receive
1Active comparator5 mg Donepezil (first 14 days), 10 mg Donepezil (next 70 days)
Receives: Drug: Donepezil
2Placebo comparatorNot described
Receives: Drug: Placebo to match Aricept

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. CogState Computerized Neurological Test Battery

    Measured: Tl. of 25 times: 10 times between Days 3-14, 5 times between Days 36-42, 5 times between Days 64-70, four times between Days 92-97, 1 time on Day 98

Secondary outcomes (3)
  1. Neuropsychological Test Battery (NTB)

    Measured: Tl. of 5 times: Once between Days 1-2, Once anytime between Days 3-14, Once anytime between Days 36-42, Once anytime between Days 64-70, Once between Days 92-97

  2. Alzheimer Disease Assessment Scale-Cognitive (ADAS-Cog)

    Measured: Tl. of 5 times: Once between Days 1-2, Once anytime between Days 3-14, Once anytime between Days 36-42, Once anytime between Days 64-70, Once between Days 92-97

  3. Alzheimer's Disease Cooperative Study-Clinical Global Impression of Change (ADCS-CGIC)

    Measured: Tl. of 4 times: Once anytime between Days 3-14, Once anytime between Days 36-42, Once anytime between Days 64-70, Once between Days 92-97

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Dec 2009 (estimated)
  2. Study startDec 2009
  3. Primary completionJan 2011
  4. Study completionJan 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
155 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01024660
Sponsor's protocol ID
D2285M00010
Status last verified
Feb 2011
First submitted
2 Dec 2009
Last updated
8 Feb 2011
Results posted
No
Data monitoring committee
No

Publications

  • Karin A, Hannesdottir K, Jaeger J, Annas P, Segerdahl M, Karlsson P, Sjogren N, von Rosen T, Miller F. Psychometric evaluation of ADAS-Cog and NTB for measuring drug response. Acta Neurol Scand. 2014 Feb;129(2):114-22. doi: 10.1111/ane.12153. Epub 2013 Jun 13.

    PubMed 23763450

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Donepezil in people with Alzheimer's Disease, run by AstraZeneca at 18 sites in 4 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Feb 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 18 sites in Poland, Canada, Peru, South Africa. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

CogState Computerized Neurological Test Battery (time frame: Tl. of 25 times: 10 times between Days 3-14, 5 times between Days 36-42, 5 times between Days 64-70, four times between Days 92-97, 1 time on Day 98). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01024660, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Feb 2011.

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