Study Evaluating Safety, Tolerability, And Immunogenicity Of ACC-001 In Subjects With Mild To Moderate Alzheimer's Disease
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ClinicalTrials.gov Identifier: NCT00479557 |
Recruitment Status :
Completed
First Posted : May 28, 2007
Results First Posted : January 1, 2016
Last Update Posted : January 1, 2016
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Sponsor:
Pfizer
Collaborator:
Janssen Alzheimer Immunotherapy (JAI) Research and Development, LLC
Information provided by (Responsible Party):
Pfizer
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Study Type | Interventional |
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Study Design | Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor); Primary Purpose: Treatment |
Condition |
Alzheimer Disease |
Interventions |
Biological: ACC-001 + QS-21 Biological: ACC-001 Biological: QS-21 Drug: Placebo: Phosphate buffered saline |
Enrollment | 86 |
Participant Flow
Recruitment Details | Planned duration was approximately 110 weeks (including 6 week screening period, 52 weeks of dosing, and 52 weeks of follow-up). Participants who completed the 3134K1-200-EU (B2571004) study through Week 78 had the option to exit after this time point, for continued treatment and follow-up under extension protocol 3134K1-2203-EU (B2571007). |
Pre-assignment Details | The Basic Results disclose pooled data from studies NCT00479557 and NCT00498602. |
Arm/Group Title | ACC 3 µg+QS-21 | ACC 10 µg+QS-21 | ACC 30 µg+QS-21 | ACC 10 µg | ACC 30 µg | QS-21 Alone | Phosphate Buffered Saline |
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Participants received 3 µg of ACC-001 and 50 µg of QS-21. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 10 µg of ACC-001 and 50 µg of QS-21. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 30 µg of ACC-001 and 50 µg of QS-21. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 10 µg of ACC-001. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 30 µg of ACC-001. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 50 µg of QS-21. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received Phosphate buffered Saline (PBS). Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. |
Period Title: Overall Study | |||||||
Started | 36 | 61 | 40 | 35 | 12 | 44 | 17 |
Treated | 36 | 60 [1] | 40 | 35 | 12 | 44 | 17 |
Completed | 26 | 51 | 32 | 30 | 8 | 31 | 15 |
Not Completed | 10 | 10 | 8 | 5 | 4 | 13 | 2 |
Reason Not Completed | |||||||
Death | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Lack of Efficacy | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Lost to Follow-up | 0 | 2 | 0 | 2 | 0 | 0 | 0 |
Adverse Event (AE) related to Study Drug | 1 | 0 | 3 | 2 | 0 | 1 | 0 |
AE not related to Study Drug | 1 | 3 | 0 | 0 | 2 | 2 | 1 |
Caregiver Request | 2 | 2 | 2 | 0 | 1 | 2 | 0 |
Investigator Request | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Subject Request | 3 | 0 | 1 | 1 | 1 | 4 | 1 |
Other | 2 | 3 | 1 | 0 | 0 | 3 | 0 |
[1]
One participant discontinued due to an AE, with an outcome of death.
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Baseline Characteristics
Arm/Group Title | ACC 3 µg+QS-21 | ACC 10 µg+QS-21 | ACC 30 µg+QS-21 | ACC 10 µg | ACC 30 µg | QS-21 Alone | Phosphate Buffered Saline | Total | |
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Participants received 3 µg of ACC-001 and 50 µg of QS-21. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 10 µg of ACC-001 and 50 µg of QS-21. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 30 µg of ACC-001 and 50 µg of QS-21. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 10 µg of ACC-001. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 30 µg of ACC-001. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received 50 µg of QS-21. Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Participants received Phosphate buffered Saline (PBS). Test article was given by intramuscular injection into the deltoid muscle at 0, 1, 3, 6, and 12 months. | Total of all reporting groups | |
Overall Number of Baseline Participants | 36 | 61 | 40 | 35 | 12 | 44 | 17 | 245 | |
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245 participants were randomized in both studies (86 participants in 3134K1-200-EU [B2571004] and 159 participants in 3134K1-2201-US [B2571005]) and included in the analysis below. One participant of the randomized participants did not receive treatment.
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Age, Continuous
Mean (Standard Deviation) Unit of measure: Year |
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Number Analyzed | 36 participants | 61 participants | 40 participants | 35 participants | 12 participants | 44 participants | 17 participants | 245 participants | |
65.7 (7.75) | 69.3 (9.57) | 69.0 (9.27) | 71.9 (8.96) | 70.9 (9.59) | 68.8 (8.07) | 69.4 (7.82) | 69.1 (8.87) | ||
Sex: Female, Male
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 36 participants | 61 participants | 40 participants | 35 participants | 12 participants | 44 participants | 17 participants | 245 participants | |
Female |
16 44.4%
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29 47.5%
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22 55.0%
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19 54.3%
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8 66.7%
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31 70.5%
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14 82.4%
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139 56.7%
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Male |
20 55.6%
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32 52.5%
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18 45.0%
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16 45.7%
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4 33.3%
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13 29.5%
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3 17.6%
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106 43.3%
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Race/Ethnicity, Customized
Measure Type: Number Unit of measure: Number of participants |
Number Analyzed | 36 participants | 61 participants | 40 participants | 35 participants | 12 participants | 44 participants | 17 participants | 245 participants |
Asian | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | |
Black or African American | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 3 | |
Other | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 5 | |
White | 33 | 60 | 38 | 34 | 11 | 43 | 17 | 236 | |
Mini-Mental State Examination (MMSE) Score
[1] Mean (Standard Deviation) Unit of measure: Score |
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Number Analyzed | 36 participants | 61 participants | 40 participants | 35 participants | 12 participants | 44 participants | 17 participants | 245 participants | |
21.4 (2.96) | 21.4 (3.38) | 21.0 (2.92) | 21.6 (3.16) | 21.8 (3.60) | 21.7 (3.11) | 21.2 (3.17) | 21.4 (3.13) | ||
[1]
Measure Description: The MMSE was used to systematically and thoroughly assess mental status of participants. It is an 11-question measure that tests five areas of cognitive function: orientation, registration, attention and calculation, recall, and language. The total score ranges from 0 to 30. A score of 23 or lower is indicative of cognitive impairment.
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MMSE Stratum
[1] Measure Type: Number Unit of measure: Number of participants |
Number Analyzed | 36 participants | 61 participants | 40 participants | 35 participants | 12 participants | 44 participants | 17 participants | 245 participants |
High (21 - 26) | 26 | 40 | 24 | 23 | 8 | 29 | 11 | 161 | |
Low (16 - 20) | 10 | 21 | 16 | 12 | 4 | 15 | 6 | 84 | |
[1]
Measure Description: The MMSE was used to systematically and thoroughly assess mental status of participants. It is an 11-question measure that tests five areas of cognitive function: orientation, registration, attention and calculation, recall, and language. The total score ranges from 0 to 30. A score of 23 or lower is indicative of cognitive impairment.
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Outcome Measures
Adverse Events
Limitations and Caveats
[Not Specified]
More Information
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts
the PI's rights to discuss or publish trial results after the trial is completed.
Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
Results Point of Contact
Name/Title: | Pfizer ClinicalTrials.gov Call Center |
Organization: | Pfizer, Inc. |
Phone: | 1-800-718-1021 |
EMail: | ClinicalTrials.gov_Inquiries@pfizer.com |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Pfizer |
ClinicalTrials.gov Identifier: | NCT00479557 |
Other Study ID Numbers: |
3134K1-200 B2571004 ( Other Identifier: Alias Study Number ) 2006-002061-39 ( EudraCT Number ) |
First Submitted: | May 24, 2007 |
First Posted: | May 28, 2007 |
Results First Submitted: | May 6, 2014 |
Results First Posted: | January 1, 2016 |
Last Update Posted: | January 1, 2016 |