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Safety, Tolerability, And Immunogenicity Study Of ACC-001 In Japanese Subjects With Mild To Moderate Alzheimer's Disease

Phase Iia, Multicenter, Randomized, Third-party Unblinded, Adjuvant-controlled, Multiple Ascending Dose, Safety, Tolerability, And Immunogenicity Trial Of Acc-001 Withqs-21 Adjuvant In Japanese Subjects With Mild To Moderate Alzheimer's Disease.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00959192
Enrollment
32
Registered
2009-08-14
Start date
2009-08-31
Completion date
2013-01-31
Last updated
2016-01-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer's Disease

Brief summary

The purpose of this study is to assess the safety, tolerability, and immunogenicity of ACC-001, an investigational vaccine, in subjects with mild to moderate Alzheimer's disease in Japan.

Interventions

BIOLOGICALACC-001

IM injection, dose of 3, 10 and 30 micrograms, at Day 1, month 1, 3, 6 and 12

OTHERQS-21

IM injection, dose of 50 micrograms, at Day 1, month 1, 3, 6 and 12

Sponsors

JANSSEN Alzheimer Immunotherapy Research & Development, LLC
CollaboratorINDUSTRY
Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
50 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of mild to moderate Alzheimer's Disease * Mini-Mental State Examination (MMSE) 16-26

Exclusion criteria

* Significant Neurological Disease other than Alzheimer's disease * Major psychiatric disorder * Clinically significant systemic illness

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Treatment-emergent Adverse Events (AEs) by SeverityBaseline up to 24 monthsNumber of participants who experienced mild, moderate, or 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)
Number of Participants With Abnormalities in Neurological ExaminationBaseline up to 24 monthsNumber of participants with abnormalities in neurological examinations as determined by the investigators. Neurological examinations included Mental Status, Speech, Cranial Nerves (including pupil equality and reactivity), Visual field, Sensory, Motor, Coordination, Gait, Primitive reflexes, Tendon reflexes and Romberg.
Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataBaseline up to 24 monthsNumber of participants with brain abnormalities in MRI data that are either consistent or not consistent with AD, as determined by radiologists.

Secondary

MeasureTime frameDescription
Anti-a-beta IgG Titer at Specified VisitsBaseline up to 24 monthsGeometric mean of anti-a-beta IgG titer from pre-study through Week 104
Anti-a-beta IgM Titer at Specified VisitsBaseline up to 24 monthsGeotmetric mean of anti-a-beta IgM titer from pre-study through Week 104

Other

MeasureTime frameDescription
The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Baseline up to 24 monthsThe 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.
The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Baseline up to 24 monthsThe MMSE is a brief, structured examination of cognitive function. It has a total score of 30 points (0-30), and any score equal to or lower than 26 points indicates cognitive impairment.
The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Baseline up to 24 monthsThe 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.
The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Baseline up to 24 monthsThe 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. Total score ranges from 0 to 70 points, with higher scores indicating a greater degree of impairment.

Countries

Japan

Participant flow

Participants by arm

ArmCount
ACC-001 3 Micrograms + QS-21
A cohort of participants who received intramuscular (IM) injection of active vaccine ACC-001 (3 micrograms) + adjuvant QS-21 (50 micrograms) at Day 1, month 1, 3, 6 and 12
6
ACC-001 10 Micrograms + QS-21
A cohort of participants who received IM injection of active vaccine ACC-001 (10 micrograms) + adjuvant QS-21 (50 micrograms) at Day 1, month 1, 3, 6 and 12
9
ACC-001 30 Micrograms + QS-21
A cohort of participants who received IM injection of active vaccine ACC-001 (30 micrograms) + adjuvant QS-21 (50 micrograms) at Day 1, month 1, 3, 6 and 12
9
QS-21
A cohort of participants who received IM injection of adjuvant QS-21 (50 micrograms) at Day 1, month 1, 3, 6 and 12
8
Total32

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1110
Overall StudyCaregiver Request0021
Overall StudyInvestigator Request1000

Baseline characteristics

CharacteristicACC-001 3 Micrograms + QS-21ACC-001 10 Micrograms + QS-21ACC-001 30 Micrograms + QS-21QS-21Total
Age, Continuous72.50 years
STANDARD_DEVIATION 8.73
68.00 years
STANDARD_DEVIATION 10.34
74.33 years
STANDARD_DEVIATION 6.69
64.75 years
STANDARD_DEVIATION 7.15
69.81 years
STANDARD_DEVIATION 8.83
Sex: Female, Male
Female
6 Participants6 Participants6 Participants7 Participants25 Participants
Sex: Female, Male
Male
0 Participants3 Participants3 Participants1 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
6 / 68 / 99 / 97 / 8
serious
Total, serious adverse events
0 / 60 / 90 / 90 / 8

Outcome results

Primary

Incidence of Treatment-emergent Adverse Events (AEs) by Severity

Number of participants who experienced mild, moderate, or 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)

Time frame: Baseline up to 24 months

Population: The safety analysis population includes all of the randomly assigned participants who took at least one dose of study medication.

ArmMeasureGroupValue (NUMBER)
ACC-001 3 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeverityMild4 Participants
ACC-001 3 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeveritySevere0 Participants
ACC-001 3 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeverityModerate2 Participants
ACC-001 10 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeverityMild7 Participants
ACC-001 10 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeveritySevere0 Participants
ACC-001 10 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeverityModerate1 Participants
ACC-001 30 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeverityModerate1 Participants
ACC-001 30 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeverityMild7 Participants
ACC-001 30 Micrograms + QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeveritySevere1 Participants
QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeverityMild5 Participants
QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeveritySevere0 Participants
QS-21Incidence of Treatment-emergent Adverse Events (AEs) by SeverityModerate2 Participants
Primary

Number of Participants With Abnormalities in Neurological Examination

Number of participants with abnormalities in neurological examinations as determined by the investigators. Neurological examinations included Mental Status, Speech, Cranial Nerves (including pupil equality and reactivity), Visual field, Sensory, Motor, Coordination, Gait, Primitive reflexes, Tendon reflexes and Romberg.

Time frame: Baseline up to 24 months

Population: The safety analysis population includes all of the randomly assigned participants who took at least one dose of study medication.

ArmMeasureGroupValue (NUMBER)
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationMotor0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationCranial Nerves0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationRomberg0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationGate0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationTendon reflexes0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationVisual Field0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationSpeech0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationMental Status0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationCoordination0 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationSensory1 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationTotal1 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationPrimitive reflexes0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationMental Status0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationMotor0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationTotal1 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationGate0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationCoordination0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationSpeech0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationTendon reflexes0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationCranial Nerves0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationRomberg1 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationVisual Field0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationPrimitive reflexes0 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationSensory0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationGate0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationTotal0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationMental Status0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationSpeech0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationCranial Nerves0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationVisual Field0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationSensory0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationMotor0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationCoordination0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationPrimitive reflexes0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationTendon reflexes0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Abnormalities in Neurological ExaminationRomberg0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationSensory0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationVisual Field0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationTotal0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationPrimitive reflexes0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationCranial Nerves0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationSpeech0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationRomberg0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationTendon reflexes0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationMental Status0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationCoordination0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationMotor0 Participants
QS-21Number of Participants With Abnormalities in Neurological ExaminationGate0 Participants
Primary

Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) Data

Number of participants with brain abnormalities in MRI data that are either consistent or not consistent with AD, as determined by radiologists.

Time frame: Baseline up to 24 months

Population: The safety analysis population includes all of the randomly assigned participants who took at least one dose of study medication.

ArmMeasureGroupValue (NUMBER)
ACC-001 3 Micrograms + QS-21Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataAbnormal - inconsistent with AD1 Participants
ACC-001 3 Micrograms + QS-21Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataAbnormal - consistent with AD6 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataAbnormal - consistent with AD9 Participants
ACC-001 10 Micrograms + QS-21Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataAbnormal - inconsistent with AD0 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataAbnormal - inconsistent with AD2 Participants
ACC-001 30 Micrograms + QS-21Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataAbnormal - consistent with AD9 Participants
QS-21Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataAbnormal - inconsistent with AD0 Participants
QS-21Number of Participants With Brain Abnormalities in Magnetic Resonance Imaging (MRI) DataAbnormal - consistent with AD8 Participants
Secondary

Anti-a-beta IgG Titer at Specified Visits

Geometric mean of anti-a-beta IgG titer from pre-study through Week 104

Time frame: Baseline up to 24 months

Population: The population for immunogenicity analysis includes all of the randomly assigned participants who took at least one dose of study medication, having the baseline and at least one post baseline immunogenicity evaluation.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsPre-study (n=6,9,9,8)50.0 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 10 (n=6,9,9,8)979.2 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 50 (n=6,8,7,8)1854.5 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 40 (n=5,9,8,8)3136.4 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 30 (n=6,9,7,8)7218.7 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 14 (n=6,9,9,8)6088.4 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 54 (n=5,8,7,7)2873.6 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 104 (n=0,1,1,0)NA Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 78 (n=4,8,6,7)5108.6 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 16 (n=6,9,9,8)3860.4 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 2 (n=6,9,9,8)62.2 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 4 (n=6,9,9,8)107.9 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 91 (n=0,1,1,0)NA Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 24 (n=6,9,9,8)1151.5 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 8 (n=6,9,9,8)1143.3 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 6 (n=6,9,9,8)2106.5 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 66 (n=4,8,7,7)7407.9 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 28 (n=6,9,7,8)8216.5 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 56 (n=4,8,7,7)11006.2 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 28 (n=6,9,7,8)8929.3 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 56 (n=4,8,7,7)7582.4 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 30 (n=6,9,7,8)7017.4 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 91 (n=0,1,1,0)546.0 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 40 (n=5,9,8,8)2706.5 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 54 (n=5,8,7,7)9636.4 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 50 (n=6,8,7,8)1255.8 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 6 (n=6,9,9,8)4793.2 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 8 (n=6,9,9,8)2331.4 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 2 (n=6,9,9,8)65.0 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 10 (n=6,9,9,8)1674.9 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsPre-study (n=6,9,9,8)50.0 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 78 (n=4,8,6,7)2465.3 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 14 (n=6,9,9,8)6286.2 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 16 (n=6,9,9,8)4170.4 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 66 (n=4,8,7,7)3942.5 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 24 (n=6,9,9,8)1455.0 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 4 (n=6,9,9,8)94.2 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 104 (n=0,1,1,0)414.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 78 (n=4,8,6,7)1316.3 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsPre-study (n=6,9,9,8)50.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 2 (n=6,9,9,8)67.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 4 (n=6,9,9,8)79.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 6 (n=6,9,9,8)5702.6 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 8 (n=6,9,9,8)3423.9 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 10 (n=6,9,9,8)2012.4 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 14 (n=6,9,9,8)9983.5 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 16 (n=6,9,9,8)9228.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 24 (n=6,9,9,8)3903.1 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 28 (n=6,9,7,8)7429.5 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 30 (n=6,9,7,8)6162.2 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 40 (n=5,9,8,8)3615.5 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 50 (n=6,8,7,8)1261.4 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 54 (n=5,8,7,7)8604.6 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 56 (n=4,8,7,7)6201.5 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 66 (n=4,8,7,7)2452.5 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 91 (n=0,1,1,0)389.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 104 (n=0,1,1,0)285.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 28 (n=6,9,7,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 2 (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 56 (n=4,8,7,7)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 24 (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 16 (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsPre-study (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 66 (n=4,8,7,7)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 14 (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 10 (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 8 (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 78 (n=4,8,6,7)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 6 (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 4 (n=6,9,9,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 104 (n=0,1,1,0)NA Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 50 (n=6,8,7,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 40 (n=5,9,8,8)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 91 (n=0,1,1,0)NA Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 54 (n=5,8,7,7)50.0 Units/mL
QS-21Anti-a-beta IgG Titer at Specified VisitsWeek 30 (n=6,9,7,8)50.0 Units/mL
Secondary

Anti-a-beta IgM Titer at Specified Visits

Geotmetric mean of anti-a-beta IgM titer from pre-study through Week 104

Time frame: Baseline up to 24 months

Population: The population for immunogenicity analysis includes all of the randomly assigned participants who took at least one dose of study medication, having the baseline and at least one post baseline immunogenicity evaluation.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsPre-study (n=6,9,9,8)30.9 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 10 (n=6,9,9,8)850.8 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 50 (n=6,8,7,8)354.2 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 40 (n=5,9,8,8)449.0 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 30 (n=6,9,7,8)859.5 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 14 (n=6,9,9,8)1487.6 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 54 (n=5,8,7,7)680.7 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 104 (n=0,1,1,0)NA Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 78 (n=4,8,6,7)952.8 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 16 (n=6,9,9,8)1503.2 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 2 (n=6,9,9,8)77.1 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 4 (n=6,9,9,8)108.5 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 91 (n=0,1,1,0)NA Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 24 (n=6,9,9,8)898.5 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 8 (n=6,9,9,8)848.6 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 6 (n=6,9,9,8)953.2 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 66 (n=4,8,7,7)1213.0 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 28 (n=6,9,7,8)885.9 Units/mL
ACC-001 3 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 56 (n=4,8,7,7)1768.3 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 28 (n=6,9,7,8)3395.8 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 56 (n=4,8,7,7)2570.6 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 30 (n=6,9,7,8)3729.9 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 91 (n=0,1,1,0)219.0 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 40 (n=5,9,8,8)2480.5 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 54 (n=5,8,7,7)2605.4 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 50 (n=6,8,7,8)1330.0 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 6 (n=6,9,9,8)2988.4 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 8 (n=6,9,9,8)2940.1 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 2 (n=6,9,9,8)92.0 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 10 (n=6,9,9,8)2432.1 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsPre-study (n=6,9,9,8)28.2 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 78 (n=4,8,6,7)1650.3 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 14 (n=6,9,9,8)2231.0 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 16 (n=6,9,9,8)2484.8 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 66 (n=4,8,7,7)1872.7 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 24 (n=6,9,9,8)1421.8 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 4 (n=6,9,9,8)141.5 Units/mL
ACC-001 10 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 104 (n=0,1,1,0)154.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 78 (n=4,8,6,7)844.9 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsPre-study (n=6,9,9,8)25.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 2 (n=6,9,9,8)53.5 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 4 (n=6,9,9,8)108.5 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 6 (n=6,9,9,8)2381.4 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 8 (n=6,9,9,8)2776.2 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 10 (n=6,9,9,8)2323.9 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 14 (n=6,9,9,8)4438.5 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 16 (n=6,9,9,8)4590.6 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 24 (n=6,9,9,8)2396.4 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 28 (n=6,9,7,8)3592.8 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 30 (n=6,9,7,8)2956.7 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 40 (n=5,9,8,8)1967.3 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 50 (n=6,8,7,8)1326.8 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 54 (n=5,8,7,7)3017.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 56 (n=4,8,7,7)3051.9 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 66 (n=4,8,7,7)1825.1 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 91 (n=0,1,1,0)351.0 Units/mL
ACC-001 30 Micrograms + QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 104 (n=0,1,1,0)258.0 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 28 (n=6,9,7,8)42.1 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 2 (n=6,9,9,8)42.4 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 56 (n=4,8,7,7)40.5 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 24 (n=6,9,9,8)40.1 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 16 (n=6,9,9,8)40.5 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsPre-study (n=6,9,9,8)41.5 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 66 (n=4,8,7,7)46.0 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 14 (n=6,9,9,8)37.6 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 10 (n=6,9,9,8)36.1 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 8 (n=6,9,9,8)46.9 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 78 (n=4,8,6,7)48.3 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 6 (n=6,9,9,8)43.0 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 4 (n=6,9,9,8)43.7 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 104 (n=0,1,1,0)NA Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 50 (n=6,8,7,8)39.9 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 40 (n=5,9,8,8)37.8 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 91 (n=0,1,1,0)NA Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 54 (n=5,8,7,7)48.3 Units/mL
QS-21Anti-a-beta IgM Titer at Specified VisitsWeek 30 (n=6,9,7,8)38.9 Units/mL
Other Pre-specified

The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.

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. Total score ranges from 0 to 70 points, with higher scores indicating a greater degree of impairment.

Time frame: Baseline up to 24 months

Population: Efficacy analyses were performed on the modified intent-to-treat (mITT) population. The mITT population included all of the randomly assigned participants who took at least one dose of study medication, and had the baseline and at least one post baseline evaluation of the key efficacy variable (ADAS-Cog).

ArmMeasureGroupValue (MEAN)Dispersion
ACC-001 3 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 78 (n=4,8,6,7)0.17 Units on a scaleStandard Deviation 3.5
ACC-001 3 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 26 (n=6,9,9,8)0.39 Units on a scaleStandard Deviation 4.38
ACC-001 3 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 104 (n=0,1,1,0)NA Units on a scale
ACC-001 3 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 52 (n=5,9,7,8)1.87 Units on a scaleStandard Deviation 8.32
ACC-001 3 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 12 (n=6,9,9,8)0.06 Units on a scaleStandard Deviation 5.2
ACC-001 10 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 52 (n=5,9,7,8)0.15 Units on a scaleStandard Deviation 4.82
ACC-001 10 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 78 (n=4,8,6,7)3.40 Units on a scaleStandard Deviation 7.08
ACC-001 10 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 104 (n=0,1,1,0)-4.33 Units on a scale
ACC-001 10 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 26 (n=6,9,9,8)-0.41 Units on a scaleStandard Deviation 5.41
ACC-001 10 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 12 (n=6,9,9,8)0.52 Units on a scaleStandard Deviation 4.39
ACC-001 30 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 52 (n=5,9,7,8)5.05 Units on a scaleStandard Deviation 6.68
ACC-001 30 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 12 (n=6,9,9,8)2.93 Units on a scaleStandard Deviation 4.1
ACC-001 30 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 26 (n=6,9,9,8)3.56 Units on a scaleStandard Deviation 6.74
ACC-001 30 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 78 (n=4,8,6,7)5.39 Units on a scaleStandard Deviation 3.66
ACC-001 30 Micrograms + QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 104 (n=0,1,1,0)8.33 Units on a scale
QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 78 (n=4,8,6,7)2.33 Units on a scaleStandard Deviation 7.78
QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 26 (n=6,9,9,8)-0.63 Units on a scaleStandard Deviation 5.76
QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 12 (n=6,9,9,8)-0.25 Units on a scaleStandard Deviation 3.3
QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 52 (n=5,9,7,8)1.04 Units on a scaleStandard Deviation 7.01
QS-21The Mean Changes in Alzheimer's Disease Assessment Scale-Cognitive Behavior (ADAS-Cog) Score From Baseline at Week 12, 26, 52, 78 and 104.Week 104 (n=0,1,1,0)NA Units on a scale
Other Pre-specified

The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.

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.

Time frame: Baseline up to 24 months

Population: Efficacy analyses were performed on the modified intent-to-treat (mITT) population. The mITT population included all of the randomly assigned participants who took at least one dose of study medication, and had the baseline and at least one post baseline evaluation of the key efficacy variable (ADAS-Cog).

ArmMeasureGroupValue (MEAN)Dispersion
ACC-001 3 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 12 (n=5,9,7,8)-4.7 Units on a scaleStandard Deviation 9.7
ACC-001 3 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 78 (n=4,8,5,6)-0.6 Units on a scaleStandard Deviation 3.1
ACC-001 3 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 52 (n=5,8,6,8)-11.2 Units on a scaleStandard Deviation 20.9
ACC-001 3 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 104 (n=0,1,1,0)NA Units on a scale
ACC-001 3 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 26 (n=6,9,8,8)-10.1 Units on a scaleStandard Deviation 14.5
ACC-001 10 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 104 (n=0,1,1,0)0 Units on a scale
ACC-001 10 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 12 (n=5,9,7,8)0.7 Units on a scaleStandard Deviation 2.6
ACC-001 10 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 26 (n=6,9,8,8)-0.2 Units on a scaleStandard Deviation 11.9
ACC-001 10 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 52 (n=5,8,6,8)-3.4 Units on a scaleStandard Deviation 10.7
ACC-001 10 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 78 (n=4,8,5,6)-5.4 Units on a scaleStandard Deviation 7.7
ACC-001 30 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 26 (n=6,9,8,8)-4.4 Units on a scaleStandard Deviation 28.6
ACC-001 30 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 12 (n=5,9,7,8)1.5 Units on a scaleStandard Deviation 5.1
ACC-001 30 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 104 (n=0,1,1,0)12.8 Units on a scale
ACC-001 30 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 78 (n=4,8,5,6)0.5 Units on a scaleStandard Deviation 6.9
ACC-001 30 Micrograms + QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 52 (n=5,8,6,8)-1.8 Units on a scaleStandard Deviation 5.1
QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 104 (n=0,1,1,0)NA Units on a scale
QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 52 (n=5,8,6,8)-3.1 Units on a scaleStandard Deviation 9
QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 78 (n=4,8,5,6)3.5 Units on a scaleStandard Deviation 3.2
QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 12 (n=5,9,7,8)1.7 Units on a scaleStandard Deviation 6.4
QS-21The Mean Changes in Disability Assessment for Dementia (DAD) Score From Baseline at Week 12, 26, 52,78 and 104.Week 26 (n=6,9,8,8)-0.6 Units on a scaleStandard Deviation 6.5
Other Pre-specified

The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.

The MMSE is a brief, structured examination of cognitive function. It has a total score of 30 points (0-30), and any score equal to or lower than 26 points indicates cognitive impairment.

Time frame: Baseline up to 24 months

Population: Efficacy analyses were performed on the modified intent-to-treat (mITT) population. The mITT population included all of the randomly assigned participants who took at least one dose of study medication, and had the baseline and at least one post baseline evaluation of the key efficacy variable (ADAS-Cog).

ArmMeasureGroupValue (MEAN)Dispersion
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 4 (n=6,9,9,8)1.7 Units on a scaleStandard Deviation 1.5
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 8 (n=6,9,9,8)2.2 Units on a scaleStandard Deviation 3.1
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 12 (n=6,9,9,8)0.8 Units on a scaleStandard Deviation 2.8
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 16 (n=6,9,9,8)1.5 Units on a scaleStandard Deviation 3.4
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 26 (n=6,9,8,8)0.3 Units on a scaleStandard Deviation 3.8
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 30 (n=6,9,8,8)0.3 Units on a scaleStandard Deviation 3.7
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 40 (n=4,9,7,8)2.3 Units on a scaleStandard Deviation 2.2
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 52 (n=5,8,7,7)0.4 Units on a scaleStandard Deviation 4.5
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 78 (n=4,8,6,7)1.8 Units on a scaleStandard Deviation 2.5
ACC-001 3 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 104 (n=0,1,1,0)NA Units on a scale
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 12 (n=6,9,9,8)1.1 Units on a scaleStandard Deviation 2.7
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 78 (n=4,8,6,7)-1.4 Units on a scaleStandard Deviation 3.9
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 16 (n=6,9,9,8)1.3 Units on a scaleStandard Deviation 2.3
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 26 (n=6,9,8,8)0.1 Units on a scaleStandard Deviation 2.6
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 30 (n=6,9,8,8)1.2 Units on a scaleStandard Deviation 2.4
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 40 (n=4,9,7,8)0.8 Units on a scaleStandard Deviation 3.5
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 104 (n=0,1,1,0)-2.0 Units on a scale
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 52 (n=5,8,7,7)1.0 Units on a scaleStandard Deviation 3.8
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 4 (n=6,9,9,8)1.3 Units on a scaleStandard Deviation 1.7
ACC-001 10 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 8 (n=6,9,9,8)0.9 Units on a scaleStandard Deviation 3.2
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 52 (n=5,8,7,7)1.1 Units on a scaleStandard Deviation 2.1
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 40 (n=4,9,7,8)0.7 Units on a scaleStandard Deviation 2
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 104 (n=0,1,1,0)-1.0 Units on a scale
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 4 (n=6,9,9,8)1.6 Units on a scaleStandard Deviation 2.7
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 16 (n=6,9,9,8)2.9 Units on a scaleStandard Deviation 2.5
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 30 (n=6,9,8,8)1.6 Units on a scaleStandard Deviation 2.4
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 78 (n=4,8,6,7)-0.3 Units on a scaleStandard Deviation 1.2
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 8 (n=6,9,9,8)1.3 Units on a scaleStandard Deviation 1.7
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 26 (n=6,9,8,8)1.0 Units on a scaleStandard Deviation 2.8
ACC-001 30 Micrograms + QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 12 (n=6,9,9,8)1.1 Units on a scaleStandard Deviation 2
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 26 (n=6,9,8,8)-0.1 Units on a scaleStandard Deviation 1.6
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 52 (n=5,8,7,7)0.6 Units on a scaleStandard Deviation 2.5
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 30 (n=6,9,8,8)0.3 Units on a scaleStandard Deviation 3.3
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 104 (n=0,1,1,0)NA Units on a scale
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 40 (n=4,9,7,8)0.5 Units on a scaleStandard Deviation 3.2
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 8 (n=6,9,9,8)0.9 Units on a scaleStandard Deviation 2.6
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 12 (n=6,9,9,8)1.4 Units on a scaleStandard Deviation 2.7
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 16 (n=6,9,9,8)0.4 Units on a scaleStandard Deviation 1.8
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 4 (n=6,9,9,8)0.4 Units on a scaleStandard Deviation 2.3
QS-21The Mean Changes in Mini-Mental State Examination (MMSE) Score From Baseline at Week 4, 8, 12, 16, 26, 30, 40, 52, 78 and 104.Week 78 (n=4,8,6,7)0.0 Units on a scaleStandard Deviation 3.2
Other Pre-specified

The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.

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.

Time frame: Baseline up to 24 months

Population: Efficacy analyses were performed on the modified intent-to-treat (mITT) population. The mITT population included all of the randomly assigned participants who took at least one dose of study medication, and had the baseline and at least one post baseline evaluation of the key efficacy variable (ADAS-Cog).

ArmMeasureGroupValue (MEAN)Dispersion
ACC-001 3 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 78 (n=4,8,6,7)-0.088 Z-scoreStandard Deviation 0.334
ACC-001 3 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 26 (n=6,9,9,8)0.114 Z-scoreStandard Deviation 0.423
ACC-001 3 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 104 (n=0,1,1,0)NA Z-score
ACC-001 3 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 52 (n=5,9,7,8)0.081 Z-scoreStandard Deviation 0.288
ACC-001 3 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 12 (n=6,9,8,8)0.023 Z-scoreStandard Deviation 0.416
ACC-001 10 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 52 (n=5,9,7,8)0.211 Z-scoreStandard Deviation 0.285
ACC-001 10 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 78 (n=4,8,6,7)-0.037 Z-scoreStandard Deviation 0.494
ACC-001 10 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 104 (n=0,1,1,0)0.514 Z-score
ACC-001 10 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 26 (n=6,9,9,8)0.254 Z-scoreStandard Deviation 0.353
ACC-001 10 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 12 (n=6,9,8,8)0.275 Z-scoreStandard Deviation 0.28
ACC-001 30 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 52 (n=5,9,7,8)-0.109 Z-scoreStandard Deviation 0.263
ACC-001 30 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 12 (n=6,9,8,8)-0.028 Z-scoreStandard Deviation 0.282
ACC-001 30 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 26 (n=6,9,9,8)-0.081 Z-scoreStandard Deviation 0.53
ACC-001 30 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 78 (n=4,8,6,7)-0.120 Z-scoreStandard Deviation 0.442
ACC-001 30 Micrograms + QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 104 (n=0,1,1,0)-0.559 Z-score
QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 78 (n=4,8,6,7)0.246 Z-scoreStandard Deviation 0.336
QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 26 (n=6,9,9,8)0.222 Z-scoreStandard Deviation 0.308
QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 12 (n=6,9,8,8)0.227 Z-scoreStandard Deviation 0.107
QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 52 (n=5,9,7,8)0.213 Z-scoreStandard Deviation 0.416
QS-21The Mean Changes in Neuropsychological Test Battery (NTB) Score From Baseline at Week 12, 26, 52 and 78.Week 104 (n=0,1,1,0)NA Z-score

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026