- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01238991
Long Term Extension Study Evaluating Safety, Tolerability And Immunogenicity Of ACC-001 In Japanese Subjects With Mild To Moderate Alzheimer's Disease
December 12, 2014 updated by: Pfizer
A Phase Iia, Multicenter, Treatment Assigned, Open-label, Long-term Extension Study To Determine Safety, Tolerability, And Immunogenicity Of Acc-001 With Qs-21 Adjuvant In Japanese Subjects With Mild To Moderate Alzheimer's Disease
The purpose of this long term extension study is to assess safety, tolerability and immunogenicity of ACC-001 with QS-21 adjuvant in Japanese subjects with mild to moderate AD who were randomized in the preceding P2 double blind studies.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
53
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Osaka, Japan, 530-8480
- Tazuke Kofukai Medical Research Institute Kitano Hospital
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Aichi
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Nagoya, Aichi, Japan, 451-8511
- Meitetsu Hospital
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Ibaraki
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Kasama, Ibaraki, Japan, 309-1793
- Ibaraki Prefectural Central Hospital
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Kanagawa
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Atsugi, Kanagawa, Japan, 243-8551
- Shonan Atsugi Hospital
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Sagamihara-shi, Kanagawa, Japan, 252-0380
- Kitasato University East Hospital
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Nagano
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Suwa, Nagano, Japan, 392-8510
- Suwa Red Cross Hospital
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Osaka
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Takatsuki, Osaka, Japan, 569-8686
- Osaka Medical College Hospital
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Tokyo
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Bunkyo-ku, Tokyo, Japan, 113-8431
- Juntendo University Hospital
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Koto-ku, Tokyo, Japan, 136-0075
- Juntendo Tokyo Koto Geriatric Medical Center
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Minato-ku, Tokyo, Japan, 105-8471
- The Tokyo Jikei University School of Medicine
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Setagaya-ku, Tokyo, Japan, 158-8531
- Kanto Central Hospital of the Mutual Aid Association of Public School Teachers
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
52 years to 87 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Subjects randomized under previous 3134K1-2202-JA (NCT00752232) and 3134K1-2206-JA (NCT00959192) and met all inclusion criteria and non of the exclusion criteria.
- Screening brain MRI scan is consistent with the diagnosis of AD.
- MMSE score 10 and above.
Exclusion Criteria:
- Significant neurological diseases other than AD.
- Brain MRI evidence of vasogenic edema during the preceding studies.
- Clinically significant illness.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: ACC-001 (3 micrograms) + QS-21
Active vaccine dose of 3 micrograms +adjuvant, IM injection, at Day 1, month 6, 12 and 18
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IM injection, dose of 3 micrograms, at Day 1, month 6, 12 and 18
IM injection, dose of 10 micrograms, at Day 1, month 6, 12 and 18
IM injection, dose of 30 micrograms, at Day 1, month 6, 12 and 18
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Experimental: ACC-001 (10 micrograms) + QS-21
Active vaccine dose of 10 micrograms +adjuvant, IM injection, at Day 1, month 6, 12 and 18
|
IM injection, dose of 3 micrograms, at Day 1, month 6, 12 and 18
IM injection, dose of 10 micrograms, at Day 1, month 6, 12 and 18
IM injection, dose of 30 micrograms, at Day 1, month 6, 12 and 18
|
Experimental: ACC-001 (30 micrograms) + QS-21
Active vaccine dose of 30 micrograms +adjuvant, IM injection, at Day 1, month 6, 12 and 18
|
IM injection, dose of 3 micrograms, at Day 1, month 6, 12 and 18
IM injection, dose of 10 micrograms, at Day 1, month 6, 12 and 18
IM injection, dose of 30 micrograms, at Day 1, month 6, 12 and 18
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Treatment Emergent Adverse Events (AEs) by Severity
Time Frame: Baseline up to 24 months
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Number of mild, moderate, and severe AEs (mild = does not interfere with subject's usual function; moderate = interferes to some extent with subject's usual function; severe = interferes significantly with subject's usual function)
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Baseline up to 24 months
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Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) Data
Time Frame: Baseline up to 24 months
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Number of participants with brain abnormalities in MRI data that are either consistent or not consistent with AD, as determined by radiologists.
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Baseline up to 24 months
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Number of Participants With Abnormalities in Neurological Examination
Time Frame: Baseline of the preceding studies through 24 months of this study
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Number of participants with abnormalities in neurological examinations as determined by the investigators.
Neurological examinations included Mental Status, Speech, Cranial Nerve Function, Cranial Nerve II, Sensory Function, Motor Function, Coordination, Gait and Station, Reflexes and Deep Tendon Reflexes.
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Baseline of the preceding studies through 24 months of this study
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Anti-A-beta IgG (Immunoglobulin G) Titer at Specified Visits
Time Frame: Baseline of preceding studies to month 24 of this study (Week 210)
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Geometric mean of anti-a-beta IgG titer from baseline of the preceding studies through the end of this study
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Baseline of preceding studies to month 24 of this study (Week 210)
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Anti-A-beta IgM (Immunoglobulin M) Titer at Specified Visits
Time Frame: Baseline of preceding studies to month 24 of this study (Week 210)
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Geotmetric mean of anti-a-beta IgM titer from baseline of the preceding studies through the end of this study
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Baseline of preceding studies to month 24 of this study (Week 210)
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The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 26, 52, 78 and 104.
Time Frame: Baseline up to 24 Months
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The ADAS-Cog is a 12-item,objective measure of cognitive function, consisting of 1) Word Recall, 2) Naming Objects and Fingers, 3) Following Commands, 4) Constructional Praxis, 5) Ideational Praxis, 6) Orientation, 7) Word Recognition, 8) Recall of Test Instructions, 9) Spoken Language Ability, 10) Word-Finding Difficulty, 11) Comprehension of Spoken Language and 12) Concentration/Distractibility.
For this study, the ADAS-Cog total score is derived by summing the individual scores from items 1 to 11, with higher scores indicating a greater degree of impairment.
The total score ranges from 0 (no impairment) to 70 (worst impairment).
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Baseline up to 24 Months
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The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 26, 52,78 and 104.
Time Frame: Baseline up to 24 Months
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The DAD is administered through an interview with the caregiver and measures instrumental and basic activities of daily living.
A total score is obtained by adding the rating for each question and converting this total score out of 100.
Higher scores represent less disability in ADL while lower scores indicate more dysfunction.
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Baseline up to 24 Months
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The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 26, 52, 78 and 104.
Time Frame: Baseline up to 24 Months
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The NTB is a composite of nine widely used neuropsychological tests that assess immediate and delayed recall of verbal and visual information, attention, verbal fluency and executive function.
The cognitive tests included in the NTB are the Wechsler Memory Scale (WMS) Visual-Paired Associates (immediate and delayed), WMS-Verbal Paired Associates (immediate and delayed), Rey Auditory Verbal Learning Test (immediate and delayed), WMS-Digit Span, Controlled Word Association Test, and Category Fluency Test.
The NTB z-score is used for analysis.
The z-score for each component is calculated through the following formula: z = (y_visit - y_base)/SD_base, where y_visit is a value at a particular time point and y_base is the average test score, and SD_base is the SD based on all participants' observed baseline scores in the study.
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Baseline up to 24 Months
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The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 12, 26, 36, 52, 66, 78, 91 and 104.
Time Frame: Baseline up to 24 Months
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The MMSE is a brief, structured examination of cognitive function.
It has a total score of 30 points, and any score equal to or lower than 26 points indicates cognitive impairment.
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Baseline up to 24 Months
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
December 1, 2010
Primary Completion (Actual)
December 1, 2013
Study Completion (Actual)
December 1, 2013
Study Registration Dates
First Submitted
October 21, 2010
First Submitted That Met QC Criteria
November 9, 2010
First Posted (Estimate)
November 11, 2010
Study Record Updates
Last Update Posted (Estimate)
December 22, 2014
Last Update Submitted That Met QC Criteria
December 12, 2014
Last Verified
December 1, 2014
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- B2571001
- 3134K1-2207 (Other Identifier: Alias Study Number)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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