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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/show/NCT00667810




Registration number
NCT00667810
Ethics application status
Date submitted
24/04/2008
Date registered
28/04/2008
Date last updated
8/01/2016

Titles & IDs
Public title
Study Evaluating The Efficacy And Safety Of Bapineuzumab In Alzheimer Disease Patients
Scientific title
A Phase 3, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group Efficacy And Safety Trial Of Bapineuzumab (Aab-001, Eln115727) In Subjects With Mild to Moderate Alzheimer Disease Who Are Apolipoprotein E 4 Non-carriers
Secondary ID [1] 0 0
B2521001
Secondary ID [2] 0 0
3133K1-3000
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
Neurological 0 0 0 0
Alzheimer's disease
Neurological 0 0 0 0
Dementias

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - bapineuzumab
Treatment: Drugs - bapineuzumab
Treatment: Drugs - placebo

Experimental: Bapineuzumab 0.5 mg/kg -

Experimental: Bapineuzumab 1.0 mg/kg -

Placebo Comparator: Placebo -


Treatment: Drugs: bapineuzumab
Bapineuzumab 0.5 mg/kg administered by IV infusion approximately every 13 weeks through week 65.

Treatment: Drugs: bapineuzumab
Bapineuzumab 1.0 mg/kg administered by IV infusion approximately every 13 weeks through week 65.

Treatment: Drugs: placebo
Placebo will be administered by IV infusion approximately every 13 weeks through week 65.

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
The Change From Baseline in the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog)/11 Total Score at Week 78 - The ADAS-Cog is a multi-item, objective measure of cognitive function. The scale evaluates memory, language, and praxis with items such as orientation, word recall, word recognition, object identification, comprehension, and the completion of simple tasks. Analysis of the ADAS-Cog for this study was based upon an 11 item score from the following items 1) word recall task, 2) naming objects and fingers, 3) following commands, 4) constructional praxis, 5) ideational praxis, 6) orientation, 7) word recognition, 8) remembering test instructions, 9) spoken language ability, 10) word finding difficulty in spontaneous speech, and 11) comprehension. This scale had to be administered by a trained and certified psychometric rater who did not have access to any information regarding adverse events experienced. The ADAS-Cog/11 ranged from 0 to 70 points, with higher scores indicating a greater degree of impairment. A negative change from baseline indicates a decrease in cognitive impairment.
Timepoint [1] 0 0
78 weeks
Primary outcome [2] 0 0
The Change From Baseline in the Disability Assessment for Demential (DAD) Total Score at Week 78 - The DAD measures instrumental and basic activities of daily living in participants with Alzheimer's Disease (AD). The DAD is administered to the participants'caregiver in the form of an interview. This scale had to be administered by a trained and certified global rater who did not have access to any information regarding adverse events experienced by the participant. This scale assesses a participants' ability to initiate, plan, and perform activities related to hygiene, dressing, continence, eating, meal preparation, telephoning, going on an outing, finance and correspondence, medications, leisure, and housework. Each item can be scored as 1 = yes, 0 = no, non applicable = NA. A total score is obtained by adding the rating for each question and converting this total score out of 100. Higher scores indicate better function; a positive change from baseline indicates an improvement.
Timepoint [2] 0 0
78 weeks
Secondary outcome [1] 0 0
The Change From Baseline in Brain Amyloid Burden at Week 71. - Brain amyloid burden as imaged by 11C-Pittsburgh compound B (PiB) positron emission tomography (PET). The latter is a semiquantitative measure of the extent of fibrillar amyloid in the brain. PIB PET measurements were made in cortical regions found to have the highest burden of fibrillar amyloid at autopsy in participants diagnosed as having Alzheimer's pathology, and also regions reported to have the highest average retention of PIB signal in previous PET studies enrolling participants with probable AD. This parameter reflects overall brain amyloid deposition as indexed by imaging. The change from baseline was measured as average standard uptake value ratio (SUVr) in prespecified regions of interest (ROI) assessed by PIB PET imaging in a subset of participants.
Timepoint [1] 0 0
71 Weeks
Secondary outcome [2] 0 0
The Change From Baseline in Phospho-tau Levels in the Cerebrospinal Fluid (CSF) at Week 71. - Biomarkers CSF phospho-tau (p-tau) is an indicator of neuronal injury and neurodegeneration. An elevation in levels of tau, as well as specific p-tau species, is thought to be a marker for progressive cellular degeneration in AD. Accordingly, a reduction from baseline in levels of CSF tau in participants who received bapineuzumab compared with participants who received placebo may be indicative of a reduction in neuronal loss in participants treated with bapineuzumab.
Timepoint [2] 0 0
71 Weeks
Secondary outcome [3] 0 0
The Change From Baseline in Brain Volume at Week 71 - Brain volume was examined in a subset of participants by Magnetic Resonance Imaging Brain Boundary Shift Integral (MRI BBSI). Cerebral atrophy correlates closely with the gradual cognitive decline in AD and can be visualized by MRI. The BBSI technique involves positional matching of serial 3-dimensional MRI brain images, such that brain MRI-image volumes were first registered and then subtracted from each other. Atrophy rates would generally be expected to be lower if the underlying disease was attenuated by effective treatment.
Timepoint [3] 0 0
71 Weeks
Secondary outcome [4] 0 0
Divergence of Effect on the ADAS-Cog/11 Total Scores From Week 39 to Week 78 - The MMRM estimated slope (based on linear contrasts) of the differences between bapineuzumab and placebo for the ADAS-Cog/11 total scores from Week 39 to Week 78 was presented.
Timepoint [4] 0 0
39 Weeks
Secondary outcome [5] 0 0
Divergence of Effect on the DAD Total Scores From Week 39 to Week 78 - The MMRM estimated slope (based on linear contrasts)of the differences between bapineuzumab and placebo for the DAD total scores from Week 39 to Week 78 was presented.
Timepoint [5] 0 0
39 weeks
Secondary outcome [6] 0 0
Time to Median Placebo Deterioration on ADAS-Cog/11 Total Score (European Union [EU] Analysis Plan) - The time to first median placebo deterioration (for the EU) was defined as the first time a subject experienced an increase from baseline (worsening) in ADAS Cog/11 total score greater than or equal to the median worsening observed at Week 78 in the placebo group. The Kaplan Meier estimate of the median time to first median placebo deterioration in ADAS Cog/11 total score was presented.
Timepoint [6] 0 0
78 Weeks
Secondary outcome [7] 0 0
Time to First Clinically Meaningful Deterioration on ADAS-Cog/11 Total Score (United States [US] Analysis Plan) - The time to first clinically meaningful deterioration (for the US) was defined as the first time a participant experienced an increase (worsening) from baseline in ADAS-Cog/11 total score of >=7.
Timepoint [7] 0 0
78 weeks
Secondary outcome [8] 0 0
Time to Median Placebo Deterioration on DAD Total Score - The time to first median placebo deterioration (for the EU) was defined as the first time a participant experienced a decrease (worsening) in DAD total score greater than or equal to the median worsening at Week 78 in the placebo group.
Timepoint [8] 0 0
78 Weeks
Secondary outcome [9] 0 0
Time to First Clinically Meaningful Deterioration on DAD Total Score (US Analysis Plan) - The time to first clinically meaningful deterioration was defined as the first time a participant experienced a decrease (worsening)from baseline in DAD total score of >=12.
Timepoint [9] 0 0
78 Weeks
Secondary outcome [10] 0 0
Percentage of Participants With Worsening From Baseline in ADAS-Cog/11 Total Score at Week 78 (European Union Analysis Plan) - Percentage of participants whose increase (worsening) in ADAS-Cog/11 total score from baseline to Week 78 was at most 0, 3, 7 points.
Timepoint [10] 0 0
78 Weeks
Secondary outcome [11] 0 0
Percentage of Participants With Worsening From Baseline in ADAS-Cog/11 Total Score at Week 78 (US Analysis Plan) - Percentage of participants whose increase (worsening) from baseline to Week 78 in ADAS-Cog/11 total score is <7.
Timepoint [11] 0 0
78 Weeks
Secondary outcome [12] 0 0
Percentage of Participants With Worsening From Baseline in DAD Total Score at Week 78 (European Union Analysis Plan) - Percentage of participants whose decrease (worsening) from baseline to Week 78 in DAD total score was at most 0, 6, 12 points.
Timepoint [12] 0 0
78 Weeks
Secondary outcome [13] 0 0
Percentage of Participants With Worsening From Baseline in DAD Total Score at Week 78 (US Analysis Plan) - Percentage of participants whose decrease (worsening) from baseline to Week 78 in DAD total score was <12.
Timepoint [13] 0 0
78 weeks
Secondary outcome [14] 0 0
Change From Baseline in Dependence Scale Total Score at Week 78 - The Dependence Scale (DS) is a 13-item, caregiver-rated instrument for determining the amount of support required by a participant with AD. The DS total score ranges from 0 to 15, with higher scores indicating more need for assistance. The DS was administered as an interview to the caregiver at scheduled study visits.
Timepoint [14] 0 0
78 Weeks
Secondary outcome [15] 0 0
Change From Baseline in Clinical Dementia Rating Sum of Boxes (CDR-SOB) Total Score at Week 78 - The CDR-SOB is a global clinical staging instrument that sums 6 clinical ratings: 1) memory, 2) orientation, 3) judgment and problem solving, 4) involvement in community affairs, 5) home and hobbies, and 6) personal care based on the Clinical Dementia Rating Scale (CDR) interview. The CDR includes discussions with the participant and caregiver using a structured format. This scale had to be administered by a trained and certified global rater who did not have access to any information regarding adverse events experienced by the participant. CDR-SOB total score range is 0 (least impairment) to 18 (most impairment); a negative change from baseline indicates an improvement.
Timepoint [15] 0 0
78 Weeks

Eligibility
Key inclusion criteria
- Diagnosis of probable Alzheimer Disease (AD), with Mini Mental State Examination
(MMSE) score of 16-26, and brain magnetic resonance imaging (MRI) consistent with the
diagnosis of AD

- Concurrent use of cholinesterase inhibitor or memantine allowed, if stable

- Caregiver will participate and be able to attend clinic visits with patient
Minimum age
50 Years
Maximum age
89 Years
Gender
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- Significant neurological disease other than AD

- Major psychiatric disorder

- Contraindication to undergo brain MRI [e.g., pacemaker, cerebrospinal fluid (CSF)
shunt, or foreign metal objects in the body]

- Women of childbearing potential

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 assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint(s)
Statistical methods / analysis

Recruitment
Recruitment status
Terminated
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,SA,VIC,WA
Recruitment hospital [1] 0 0
Gosford Hospital - Gosford
Recruitment hospital [2] 0 0
Hornsby Kuringai Hospital - Hornsby
Recruitment hospital [3] 0 0
The Queen Elizabeth Hospital - Woodville South
Recruitment hospital [4] 0 0
CDAMS Ballarat Base Hospital - Ballarat
Recruitment hospital [5] 0 0
Heidelberg Repatriation Hospital/ Medical and Cognitive Research Unit - West Heidelberg
Recruitment hospital [6] 0 0
Hollywood Private Hospital - Nedlands
Recruitment hospital [7] 0 0
McCusker Alzheimer's Research Foundation Inc. - Nedlands
Recruitment hospital [8] 0 0
Royal Adelaide Hospital - Adelaide SA
Recruitment postcode(s) [1] 0 0
2250 - Gosford
Recruitment postcode(s) [2] 0 0
02077 - Hornsby
Recruitment postcode(s) [3] 0 0
5011 - Woodville South
Recruitment postcode(s) [4] 0 0
3353 - Ballarat
Recruitment postcode(s) [5] 0 0
3081 - West Heidelberg
Recruitment postcode(s) [6] 0 0
6009 - Nedlands
Recruitment postcode(s) [7] 0 0
5000 - Adelaide SA
Recruitment outside Australia
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Alabama
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Murcia
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Uppsala
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VD
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Switzerland
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Thonex-Geneva
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Lancashire
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West Yorkshire
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Brighton
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United Kingdom
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Glasgow
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London
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Newcastle upon Tyne
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Northampton
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Penarth
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Sheffield
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United Kingdom
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Swindon

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

Ethics approval
Ethics application status

Summary
Brief summary
This is a study to evaluate the efficacy and safety of multiple doses of bapineuzumab in
patients with mild to moderate Alzheimer Disease. Patients will receive either bapineuzumab
or placebo. Each patient's participation will last approximately 1.5 years.
Trial website
https://clinicaltrials.gov/show/NCT00667810
Trial related presentations / publications
Public notes

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/show/NCT00667810