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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT01312896




Registration number
NCT01312896
Ethics application status
Date submitted
7/05/2009
Date registered
8/05/2009
Date last updated
31/01/2013

Titles & IDs
Public title
Study Comparing 3 Dosage Levels Of SAM-531 In Outpatients With Mild To Moderate Alzheimer Disease
Scientific title
A 52-Week, Two-Period, Multicenter, Randomized, Double-Blind, Donepezil-Referenced, Placebo-Controlled, Efficacy And Safety Study Of 3 Dosage Levels Of SAM-531 In Outpatients With Mild To Moderate Alzheimer Disease
Secondary ID [1] 0 0
B1961007
Secondary ID [2] 0 0
3193A1-2005
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Alzheimer Disease 0 0
Condition category
Condition code

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Comparator / control treatment
Control group

Outcomes

Eligibility
Key inclusion criteria
* Diagnosis of probable Alzheimer Disease according to the National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Diseases and Related Disorders Association (NINCDS-ADRDA) criteria.
* Mini-Mental State Examination (MMSE) score of 12 to 24 at screening
* Rosen Modified Hachinski Ischemic score < or equal to 4 at screening.
Minimum age
50 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Relevant neurologic disease other than Alzheimer Disease that may affect cognition or ability to complete the study.
* Current major depressive disorder or other current major psychiatric disorder.
* History of clinically evident stroke or clinically important carotid or vertebrobasilar stenosis or plaque.
* Use of prescription or nonprescription medications for cognitive enhancement (including memantine, ginkgo biloba, huperzine A, and cholinesterase inhibitors) within 3 months before the baseline visit.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s

The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 2
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Stopped early
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
1/05/2009
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
1/05/2011
Sample size
Target
Accrual to date
Final
526
Recruitment in Australia
Recruitment state(s)

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Pfizer
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The study will evaluate the efficacy and safety of an investigational drug called SAM-531 at three dosage levels. Subjects will receive either one of the 3 dosage levels of SAM-531, donepezil or placebo for the first 24 weeks of the study (period I). Subjects who receive placebo for period I will be assigned to receive the highest dose of SAM-531 SAM-531 for the remaining 28 weeks of the study, while subjects who received one of the three SAM-531 dosage levels or donepezil in period I will continue with the same study drug (period II).
Trial website
https://clinicaltrials.gov/study/NCT01312896
Trial related presentations / publications
Public notes
This record is viewable in the ANZCTR as it had previously listed Australia and/or New Zealand as a recruitment site, however these sites have since been removed

Contacts
Principal investigator
Name 0 0
Pfizer CT.gov Call Center
Address 0 0
Pfizer
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT01312896