Study Evaluating the Safety and Efficacy of Bapineuzumab in Alzheimer Disease Patients

Sponsor
Pfizer (Industry)
Overall Status
Terminated
CT.gov ID
NCT00676143
Collaborator
(none)
1,100
287
2
58
3.8
0.1

Study Details

Study Description

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.

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
1100 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
A Phase Iii, 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 Carriers
Study Start Date :
Jan 1, 2008
Actual Primary Completion Date :
Oct 1, 2012
Actual Study Completion Date :
Nov 1, 2012

Arms and Interventions

Arm Intervention/Treatment
Experimental: Bapineuzumab 0.5 mg/kg

Drug: bapineuzumab
Bapineuzumab 0.5 mg/kg administered by IV infusion approximately every 13 weeks through week 65.
Other Names:
  • AAB-001
  • Placebo Comparator: Placebo

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

    Outcome Measures

    Primary Outcome Measures

    1. Change From Baseline in Alzheimer's Disease Assessment Scale-Cognitive (ADAS-Cog)/11 Subscale Total Score at Week 78 [Baseline and 78 weeks]

      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.

    2. Change From Baseline in Disability Assessment for Dementia (DAD) Total Score at Week 78 [Baseline and 78 weeks]

      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 psychometric 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.

    Secondary Outcome Measures

    1. Change From Baseline in Brain Amyloid Burden at Week 71 [Baseline and 71 weeks]

      Brain amyloid burden as imaged by 11C-Pittsburgh compound B (PIB) positron emission tomography (PET). The latter is a semi-quantitative 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.

    2. Change From Baseline in Cerebrospinal Fluid (CSF) Phospho-tau Levels at Week 71 [Baseline and 71 Weeks]

      Biomarkers CSF phospho-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.

    3. Change From Baseline in Brain Volume, as Assessed by Magnetic Resonance Imaging Brain Boundary Shift Integral (MRI BBSI), at Week 71 [Baseline and 71 Weeks]

      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.

    4. Divergence of Effect on the ADAS-Cog/11 Total Scores From Week 39 to Week 78 [Week 39 to Week 78]

      Treatment differences are estimated using least-squares (LS) means with factor levels weighted according to overall analysis population proportions. ADAS-Cog/11 total score range is 0 (least impairment) to 70 (most impairment); a negative treatment difference (bapineuzumab minus placebo) favors bapineuzumab. Within the MMRMs for ADAS-Cog/11 described for the primary analyses, linear contrasts were formed to test increasing trend of the differences between bapineuzumab and placebo from Week 39 (the 9-month visit) through Week 78 (the 18 -month visit) for each variable, which is equivalent to testing a positive slope of the differences between each bapineuzumab dose group and placebo from Week 39 through Week 78. Results are from a restricted maximum likelihood (REML)-based mixed model for MMRM.

    5. Divergence of Effect on the DAD Total Scores From Week 39 to Week 78 [Week 39 to Week 78]

      Treatment differences are estimated using least-squares (LS) means with factor levels weighted according to overall analysis population proportions. DAD total score range is 0 to 100; a positive treatment difference (bapineuzumab minus placebo) favors bapineuzumab. Within the MMRMs for ADAS-Cog/11 described for the primary analyses, linear contrasts were formed to test increasing trend of the differences between bapineuzumab and placebo from Week 39 (the 9-month visit) through Week 78 (the 18 -month visit) for each variable, which is equivalent to testing a positive slope of the differences between each bapineuzumab dose group and placebo from Week 39 through Week 78. Results are from a restricted maximum likelihood (REML)-based mixed model for MMRM.

    6. Time to First Median Placebo Deterioration on ADAS-Cog/11 Total Score (European Union [EU] Analysis Plan) [Baseline and 78 Weeks]

      The time to first median placebo deterioration, defined as the first time a participant experienced an increase (worsening) from baseline 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 median time to first median placebo deterioration was presented.

    7. Time to First Clinically Meaningful Deterioration on ADAS-Cog/11 Total Score (United States [US] Analysis Plan) [Baseline and 78 Weeks]

      The time to first clinically meaningful deterioration was defined as the first time a participant experienced an increase (worsening) from baseline in ADAS-Cog/11 total score of >=7.

    8. Time to First Median Placebo Deterioration on DAD Total Score (EU Analysis Plan) [Baseline and 78 Weeks]

      The time to first median placebo deterioration 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.

    9. Time to First Clinically Meaningful Deterioration on DAD Total Score (US Analysis) [Baseline and 78 Weeks]

      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.

    10. Change From Baseline in Dependence Scale Total Score at Week 78 [Baseline and 78 Weeks]

      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.

    11. Percentage of Participants With Worsening From Baseline in ADAS-Cog/11 Total Score at Week 78 (EU Analysis Plan) [Baseline and 78 Weeks]

      Percentage of participants with worsening from baseline to Week 78 in ADAS-Cog/11 total score of ≤0, ≤3, and ≤7 points were reported. In order to calculate time to first median placebo deterioration in ADAS-Cog/11, the median change from baseline to Week 78 among the placebo participants of the mITT analysis population were determined. The median changes were used as the cutpoints for determining "deterioration" for Alzheimer's disease participants in the study. If the median change from baseline to Week 78 in the ADAS-Cog/11 total score among the placebo participants of the mITT Analysis Population is 7 points, then the first median placebo deterioration is the first time where there is a worsening on the ADAS-Cog/11 total score of 7 points or more and the worsening is confirmed by the ADAS-Cog/11 assessment at the next non-missing visit.

    12. Percentage of Responders for ADAS-Cog/11 Total Score at Week 78 (US Analysis Plan) [Baseline and 78 Weeks]

      Percentage of participants whose increase (worsening) from baseline to Week 78 in ADAS-Cog/11 total score was <7.

    13. Percentage of Participants With Worsening From Baseline in DAD Total Score at Week 78 (EU Analysis Plan) [Baseline and 78 Weeks]

      Percentage of participants whose decrease (worsening) from baseline to Week 78 in DAD total score of ≤ 0, ≤ 6, and ≤ 12 points. In order to calculate time to first median placebo deterioration in DAD, the median change from baseline to Week 78 among the placebo participants of the mITT analysis population were determined. The median changes were used as the cutpoints for determining "deterioration" for Alzheimer's disease participants in the study. If the median change from baseline to Week 78 in the DAD total score among the placebo participants of the mITT Analysis Population is 7 points, then the first median placebo deterioration is the first time where there is a worsening on the DAD total score of 7 points or more and the worsening is confirmed by the DAD assessment at the next non-missing visit.

    14. Percentage of Responders for DAD Total Score at Week 78 (US Analysis Plan) [Baseline and 78 Weeks]

      Percentage of participants whose decrease (worsening) from baseline to Week 78 in DAD total score was <12.

    15. Change From Baseline in Clinical Dementia Rating Sum of Boxes (CDR-SOB) Total Score at Week 78 [Baseline and 78 Weeks]

      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.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    50 Years to 88 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Diagnosis of probable AD, with MMSE score of 16-26, and brain 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.

    Exclusion Criteria:
    • Significant neurological disease other than AD, or a major psychiatric disorder

    • Contraindication to undergo brain MRI (e.g., pacemaker, CSF shunt, or foreign metal objects in the body)

    • Woman of childbearing potential

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Center for Psychiatric Medicine Birmingham Alabama United States 35294
    2 Participant and Clinical Interactions Resources Birmingham Alabama United States 35294
    3 UAB Clinical Research Pharmacy-Russell Clinic Birmingham Alabama United States 35294
    4 University of Alabama-Birmingham Birmingham Alabama United States 35294
    5 Dedicated Clinical Research Goodyear Arizona United States 85395
    6 Banner Alzheimer's Institute Phoenix Arizona United States 85006
    7 Jeffrey S. Gitt, DO, PC Phoenix Arizona United States 85032
    8 The Compounding Center Phoenix Arizona United States 85032
    9 HOPE Research Institute Phoenix Arizona United States 85050
    10 Clinical Trials, Inc. Little Rock Arkansas United States 72205
    11 AC Institute, Incorporated Carson California United States 90746
    12 Collaborative Neuroscience Network, Inc Long Beach California United States 90806
    13 San Francisco Clinical Research Center San Francisco California United States 94109
    14 Alpine Clinical Research Center, Inc. Boulder Colorado United States 80304
    15 Associated Neurologists, PC Boulder Colorado United States 80304
    16 Mile HIgh Research Center Denver Colorado United States 80218
    17 Associated Neurologists of Southern Connecticut, P.C. Fairfield Connecticut United States 06824
    18 Bendheim Cancer Center Greenwich Connecticut United States 06830
    19 Center for Healthy Aging Greenwich Connecticut United States 06830
    20 Alzheimer's Disease Research Unit New Haven Connecticut United States 06510
    21 Hospital Research Unit New Haven Connecticut United States 06510
    22 Investigational Drug Service New Haven Connecticut United States 06511
    23 Moshe Hasbani, MD New Haven Connecticut United States 06511
    24 Norman S. Werdiger, MD New Haven Connecticut United States 06519
    25 MR Research Center New Haven Connecticut United States 06520
    26 Yale PET Center New Haven Connecticut United States 06520
    27 Research Center for Clinical Studies, Inc. Norwalk Connecticut United States 06851
    28 JEM Research Institute, LLC Atlantis Florida United States 33462
    29 JEM Research Institute Atlantis Florida United States 33462
    30 Medical Specialist of the Palm Beaches Atlantis Florida United States 33462
    31 Brain Matters Research Delray Beach Florida United States 33445
    32 Compass Research, LLC Orlando Florida United States 32806
    33 Palm Beach Neurological Center Palm Beach Gardens Florida United States 33418
    34 Neurostudies Inc Port Charlotte Florida United States 33952
    35 Roskamp Institute Sarasota Florida United States 34243
    36 University of South Florida Tampa Florida United States 33613
    37 Dekalb Neurology Associates, LLC/NeuroStudies.net, LLC Decatur Georgia United States 30033
    38 Neurostudies.net Decatur Georgia United States 30033
    39 NeuroStudies.net Lawrenceville Georgia United States 30045
    40 Alexian Brothers Medical Center Elk Grove Village Illinois United States 60007
    41 Southern Illinois University School of Medicine Department Springfield Illinois United States 62702
    42 Memorial Medical Center Springfield Illinois United States 62781
    43 University of Kansas Medical Center Kansas City Kansas United States 66160
    44 Lake Charles Clinical Trials Lake Charles Louisiana United States 70629
    45 Massachusetts General Hospital Boston Massachusetts United States 02114
    46 Massachusetts General Hosptial Boston Massachusetts United States 02114
    47 Brigham & Womens Hospital Boston Massachusetts United States 02115
    48 Brigham and Women's Hospital Boston Massachusetts United States 02115
    49 Boston Univeristy ADCRP Boston Massachusetts United States 02118
    50 General Clincial Research Center (Infusion Location) Boston Massachusetts United States 02118
    51 IDS Pharmacy (Drug Receipt). Attn:Hyesson Hong Boston Massachusetts United States 02118
    52 Shields MRI Dartmouth Massachusetts United States 02747
    53 Neuroscience Research of the Berkshires Pittsfield Massachusetts United States 01201
    54 Springfield Neurology Associates, LLC Springfield Massachusetts United States 01104
    55 University of Michigan Health System Ann Arbor, Michigan United States 48109-5872
    56 University of Michigan Hospital and Health System Ann Arbor Michigan United States 48105-2945
    57 University of Michigan Health System Ann Arbor Michigan United States 48109
    58 University of Michigan Health System Ann Arbor Michigan United States 48110
    59 Michigan State University East Lansing Michigan United States 48824
    60 Hattiesburg Clinic Hattiesburg Mississippi United States 39401
    61 The Center for Pharmaceutical Research P.C. Kansas City Missouri United States 64114
    62 Memory Enhancement Center of America, Inc. Eatontown New Jersey United States 07724
    63 Pharmcare USA Edison New Jersey United States 08837
    64 Alzheimer's Research Corp./Merician Institute for Aging Manchester New Jersey United States 08759
    65 Neurological Care of Central New York Liverpool New York United States 13088
    66 Carolina Neuropsychological Services, Inc Raleigh North Carolina United States 27607
    67 Healthsouth Blue Ridge Surgery Center Raleigh North Carolina United States 27607
    68 Raleigh Neurology Associates Raleigh North Carolina United States 27607
    69 Wake Radiology Associates Raleigh North Carolina United States 27607
    70 Ohio State University Imaging@Martha Moorehouse Columbs Ohio United States 43210
    71 The Ohio State University Columbs Ohio United States 43210
    72 The Ohio State University Columbus Ohio United States 43210
    73 Summit Research Network(Oregon) Inc. Portland Oregon United States 97210
    74 Providence Brain Institute Portland Oregon United States 97225
    75 Providence Cognitive Assessment Clinic Portland Oregon United States 97225
    76 Providence St. Vincent Medical Center Portland Oregon United States 97225
    77 Dr. Michael Gabe (Clinic) Silverton Oregon United States 97381
    78 Abington Memorial Hosptial Abington Pennsylvania United States 19001
    79 Abington Neurological Associates Abington Pennsylvania United States 19001
    80 Abington Neurological Assoc Abington Pennsylvania United States 19001
    81 Andorra MRI of Flourtown Flourtown Pennsylvania United States 19031
    82 The Clinical Trial Center, LLC Jenkintown Pennsylvania United States 19046
    83 Hospital of the University of Pennsylvania Philadelphia Pennsylvania United States 19104
    84 Investigational New Drug Services Philadelphia Pennsylvania United States 19104
    85 University of Pennsylvania-Penn Memory Center Philadelphia Pennsylvania United States 19104
    86 UPENN Clinical and Transitional Research Center Philadelphia Pennsylvania United States 19104
    87 Jefferson Hospital for Neuroscience Philadelphia Pennsylvania United States 19107
    88 Thomas Jefferson University Hospital Philadelphia Pennsylvania United States 19107
    89 Abington Neurological Associates Willow Grove Pennsylvania United States 19090
    90 Rhode Island Mood and Memory Research Institute East Providence Rhode Island United States 02914
    91 Simpson's Pharmacy Pawtucket Rhode Island United States 02861
    92 Butler Hospital Providence Rhode Island United States 02906
    93 Medical University of South Carolina Hospitals and Clinics Charleston South Carolina United States 29425
    94 Medical University of South Carolina Charleston South Carolina United States 29425
    95 MUSC Charleston South Carolina United States 29425
    96 Medical University of South Carolina North Charleston South Carolina United States 29406
    97 Texas Neurology, P.A. Dallas Texas United States 75214
    98 Innovative Clinical Trials San Antonio Texas United States 78229
    99 Integra Clinical Research San Antonio Texas United States 78229
    100 Integra Clinical Research, LLC San Antonio Texas United States 78231
    101 Integra Clinical Research San Antonio Texas United States 78231
    102 Vista Infusions San Antonio Texas United States 78231
    103 Inventive Infusion Solutions San Antonio Texas United States 78258
    104 Inventive Infusions Solutions San Antonio Texas United States 78258
    105 The Memory Clinic Bennington Vermont United States 05201
    106 The Pharmacy Bennington Vermont United States 05201
    107 Waisman Center (PET only) Madison Wisconsin United States 53705-2280
    108 University of Wisconsin School of Medicine and Public Health Madison Wisconsin United States 53705
    109 Wm S. Middleton Memorial Veterans Hospital Madison Wisconsin United States 53705
    110 University of Wisconsin Hospitals and Clinics Madison Wisconsin United States 53792
    111 University of Wisconsin School of Medicine and Public Health Madison Wisconsin United States 53792
    112 Instituto Medico Congreso Buenos Aires Argentina 1090
    113 Cemic University Hospital Buenos Aires Argentina 1431
    114 Hospital Italiano de Buenos Aires Buenos Aires Argentina C1199ABD
    115 Instituto Kremer Cordoba Argentina 5004
    116 Gosford Hospital; Pharmacy Dept Gosford New South Wales Australia 2250
    117 Gosford Hospital Gosford New South Wales Australia 2250
    118 Hornsby Kuringai Hospital Hornsby New South Wales Australia 2077
    119 Royal Adelaide Hospital Adelaide South Australia Australia 5000
    120 The Queen Elizabeth Hospital Woodville South South Australia Australia 5011
    121 CDAMS Ballarat Base Hospital Ballarat Victoria Australia 3353
    122 Heidelberg Repatriation Hospital West Heidelberg Victoria Australia 3081
    123 Hollywood Hospital; Pharmacy Dept Nedlands Western Australia Australia 6009
    124 McCusker Alzheimer's Research Foundation, Inc. Nedlands Western Australia Australia 6009
    125 Medizinische Universitaet Graz Graz Austria 8036
    126 Landeskrankenhaus Klagenfurt Klagenfurt Austria A-9020
    127 Allg. Krankenhaus der Stadt Wien Wien Austria 1090
    128 SZ Sued - Kaiser-Franz-Josef-Spital Wien Austria 1220
    129 Donauspital Wien Austria A-1220
    130 ZNA Middelheim Antwerpen Belgium 2020
    131 Az. St. Jan Ruddershove 35 Brugge Belgium 8000
    132 Cliniques Universitaires St Luc Brussels Belgium 1200
    133 Universitair Ziekenhuis Antwerpen Edegem Belgium 2650
    134 Universitair Ziekenhuis Gasthuisberg Leuven Belgium 3000
    135 H.-Hartziekenhuis Roeselare-Menen Roeselare Belgium 8800
    136 Psicomedica Research Group Santiago Chile 7530193
    137 Especialidades Medicas LyS Santiago Chile
    138 University Hospital Center Zagreb Zagreb Croatia 10000
    139 Ita-Suomen Yliopisto Kuopio Finland FIN-70210
    140 University of Turku / CRST Turku Finland 20520
    141 CHU Pellegrin Bordeaux Cedex France 33076
    142 Hopital neurologique du Pr A. Vighetto Bron France 69677
    143 Centre d'Imagerie medicale de Basse Normandie Caen France 14000
    144 CHU de Caen Caen France 14033
    145 Hôpitaux Civils de Colmar Colmar France 68024
    146 CHU de Dijon Dijon France 21033
    147 CHRU de Lille Lille France 59037
    148 Hôpital la Timone Marseille France 13385
    149 CHU Hôpital Gui de Chaulliac Montpellier France 34295
    150 CHU Nord - Hôpital Guillaume et René Laënnec Nantes - Saint Herblain France 44093
    151 Hôpital Cimiez C.M.R.R. Nice France 06000
    152 Service d'Imagerie Medicale Nice France 06002
    153 Groupe Hospitalier Broca-La Rochefoucauld Paris France 75013
    154 Hôpital Pitié-Salpétrière Paris France 75651
    155 Hospital Jean Bernard CIC Poitiers France 86000
    156 C.H.U de Reims Reims France 51092
    157 CHU de Rennes Rennes Cedex France 35064
    158 CHU - Hopital Charles Nicolle Rouen France 76031
    159 Hôpital Purpan Toulouse France 31059
    160 CHU Toulouse - Site Casselardit Toulouse France 31300
    161 Charite-Universitätsmedizin Berlin Berlin Germany 14050
    162 St. Josef-Klinikum Bochum Germany 44791
    163 Universitaetsklinikum Dresden Dresden Germany 01307
    164 Klinikum der Albert-Ludwigs-Universitaet Freiburg Freiburg Germany 79106
    165 Ortenau Klinikum Offenburg Offenburg Germany 77654
    166 Universitaetsklinikum Ulm Ulm Germany 89081
    167 A.O. Umberto I Ancona Italy 60020
    168 Sezione di Neurologia - Dipartimento di Neuroscienze Ancona Italy 60020
    169 Clinica Neurologica - II Neurologia Brescia Italy 25123
    170 Dipartimento di Neuroscienze, Catania Italy 95123
    171 Unita' Operativa Complessa di Neurologia Catania Italy 95126
    172 CeSI (Centro di Scienze dell'invecchiamento) - Chieti Italy 66013
    173 Fondazione IRCCS- Istituto Neurologico Carlo Besta Milano Italy 20133
    174 Ospedale S. Gerardo Monza Italy 20052
    175 Clinica Neurologica Roma Italy 00128
    176 Unita' Operativa C - Riabilitazione Neurologica Roma Italy 00179
    177 Universita degli Studi di Siena Siena Italy 53100
    178 Nagoya City University Hospital Nagoya Aichi, Japan 467-8602
    179 National Hospital Organization Tokyo National Hospital Kiyose Tokyo Japan 204-8585
    180 Yachiyo Hospital Aichi Japan 446-8510
    181 Kashiwado Hospital Chiba Japan 260-8656
    182 National Hospital Organization Chiba-East Hospital Chiba Japan 260-8712
    183 Nippon Medical School Chiba Hokusoh Hospital Chiba Japan 270-1694
    184 National Hospital Organization Kokura Medical Center Fukuoka Japan 802-8533
    185 Maebashi Red Cross Hospital Gunma Japan 371-0014
    186 Gunma University Hospital Gunma Japan 371-8511
    187 Shinozuka Hospital Gunma Japan 375-0017
    188 National Hospital Organization Hiroshima-nishi Medical Ctr. Hiroshima Japan 739-0696
    189 Kobe University Hospital Hyogo Japan 650-0017
    190 Nishi-Kobe Medical Center Hyogo Japan 651-2273
    191 Kobe City Hospital Org Kobe City Medical Cente West Hp Hyogo Japan 653-0013
    192 Iwate Medical University Hospital Iwate Japan 020-8505
    193 Kagawa University Hospital Kagawa Japan 761-0793
    194 Nippon Medical School Musashi Kosugi Hospital Kanagawa Japan 211-8533
    195 Yokohama City University Medical Center Kanagawa Japan 232-0024
    196 Shonan Atsugi Hospital Kanagawa Japan 243-8551
    197 Rakuwakai Otowa Hospital Kyoto Japan 607-8062
    198 National Hospital Organization Minami-Kyoto Hospital Kyoto Japan 610-0113
    199 National Hospital Organization Maizuru Medical Center Kyoto Japan 625-8502
    200 National Hospital Organization Matsumoto Medical Center Nagano Japan 399-0021
    201 National Hospital Organization Niigata National Hospital Niigata Japan 945-8585
    202 Okayama University Hospital Okayama Japan 700-8558
    203 National Hospital Organization Minami-Okayama Medical Center Okayama Japan 701-0304
    204 Osaka City University Hospital Osaka Japan 545-8586
    205 Osaka University Hospital Osaka Japan 565-0871
    206 Kansai Medical University Takii Hospital Osaka Japan 570-8507
    207 National HP.Org.Shizuoka Inst.Epilepsy,Neurological Disorder Shizuoka Japan 420-8688
    208 Juntendo University Hospital Tokyo Japan 113-8431
    209 Juntendo Tokyo Koto Geriatric Medical Center Tokyo Japan 136-0075
    210 Tokyo Metropolitan Health and Med. Treatment Co. Ebara Hosp Tokyo Japan 145-0065
    211 Tokyo Medical University Hospital Tokyo Japan 160-0023
    212 Tokyo Medical University Hachioji Medical Center Tokyo Japan 193-0998
    213 OCA Hospital Monterrey Nuevo León Mexico 64000
    214 Instituto Biomedico de Investigacion A.C Aguascalientes Mexico 20127
    215 Amphia Ziekenhuis Breda Noord Brabant Netherlands 4818 CK
    216 Tergooi Ziekenhuizen Hilversum Noord Holland Netherlands 1213 XZ
    217 Kennemer Gasthuis Haarlem The Netherlands Netherlands 2035 RC
    218 Jeroen Bosch Ziekenhuis 's-Hertogenbosch Netherlands 5223 GZ
    219 Medisch Centrum Alkmaar Alkmaar Netherlands 1815 JD
    220 Vrije Universiteit Medisch Centrum Amsterdam Netherlands 1081 HV
    221 Catharina Ziekenhuis Eindhoven Netherlands 5623 EJ
    222 Medisch Centrum Leeuwarden Leeuwarden Netherlands 8934 AD
    223 Erasmus MC Rotterdam Netherlands 3015 CE
    224 The Memory Clinic Auckland NZ New Zealand 0622
    225 Signet Research Christchurch New Zealand 8014
    226 NZOZ Dom Suer Ryder, Pallmed Sp. z o.o. Bydgoszcz Poland 85-796
    227 Szpital Uniwersytecki, Oddzial Kliniczny Klinik Chorob Wewnetrznych i Krakow Poland 31-531
    228 NZOZ "NEURO-KARD" "ILKOWSKI I PARTNERZY" Spolka Partnerska Lekarzy Poznan Poland 61-289
    229 Oddzial Neurologiczny i Udarowy Szpital Wolski im. dr Anny Gostynskiej, Warszawa Poland 01-211
    230 Samodzielny Publiczny Centralny Szpital Kliniczny, Katedra i Klinika Warszawa Poland 02-097
    231 Hospital Fernando da Fonseca Amadora Portugal 2720-276
    232 Hospitais Da Universidade De Coimbra Coimbra Portugal 3000-075
    233 Hospital Santa Maria Lisboa Portugal 1649-028
    234 Klinicki centar Srbije Belgrade Serbia 11000
    235 Clinical Centre Kragujevac, Clinic of Psichiatry Kragujevac Serbia 34000
    236 Klinicki Centar Vojvodina Novi Sad Serbia 21000
    237 Diagnostic Imaging Center Sremska Kamenica Serbia 21204
    238 Institute for Cardiovascular Diseases of Vojvodina Sremska Kamenica Serbia 21204
    239 Psychiatricka ambulancia Bratislava Slovakia 820 07
    240 Univerzitna nemocnica Bratislava Bratislava Slovakia 825 56
    241 Psychiatricka nemocnica Michalovce, n.o. Michalovce Slovakia 071 01
    242 Vseobecna nemocnica Rimavska Sobota Rimavska Sobota Slovakia 979 12
    243 Boithuso Caregivers Johannesburg Gauteng South Africa 1709
    244 The Osteoporosis and Memory Centre Johannesburg Gauteng South Africa 2196
    245 Denmar Clinic Pretoria Gauteng South Africa 0081
    246 St Augustine's Medical Centre 2 Durban Kwa Zulu Natal South Africa 4001
    247 Flexivest Fourteen Research Center Bellville Western Cape South Africa 7530
    248 Panorama Psychiatry and Memory Clinic Panorama Western Cape South Africa 7500
    249 Hospital General Universitario de Elche Elche Alicante Spain 03203
    250 Hospital Mutua de Terrassa Terrassa Barcelona Spain 08221
    251 Hospital Virgen del Puerto Plasencia Caceres Spain 10600
    252 Hospital Universitario Son Espases Palma de Mallorca Islas Baleares Spain 07010
    253 CLONUS Palma de Mallorca Islas Baleares Spain 07014
    254 Hospital de Donostia San Sebastian Pais Vasco Spain 20014
    255 Hospital de Cruces Baracaldo Vizcalla Spain 48903
    256 Hospital del Mar Barcelona Spain 08003
    257 Fundacio ACE Institut Catala de Neurociences Aplicades Barcelona Spain 08014
    258 Centro Internacional de Medicina Avanzda (CIMA) Barcelona Spain 08034
    259 Hospital de la Santa Creu i Sant Pau Barcelona Spain 08041
    260 Hospital Divino Valles Burgos Spain 09006
    261 Hospital de la Princesa Madrid Spain 28006
    262 Hospital Universitario Ramon y Cajal Madrid Spain 28034
    263 Hospital Clinico San Carlos Madrid Spain 28040
    264 Hospital 12 de Octubre Madrid Spain 28041
    265 Hospital Universitario La Paz Madrid Spain 28046
    266 Hospital Universitario Virgen de la Arrixaca Murcia Spain 30120
    267 Malmo University Hospital Malmo Sweden 21 224
    268 Uppsala Imanet AB Uppsala Sweden 751 09
    269 Akademiska Sjukhuset Uppsala Sweden 75185
    270 ORKI, enheten for radiologi Uppsala Sweden 75185
    271 Memory Clinic Neuro-Psychologie Zentrum Basel BS Switzerland CH-4031
    272 Hopitaux Universitaires de Geneve Les Acacias GE Switzerland 1227
    273 CHUV Lausanne Lausanne VD Switzerland 1005
    274 Hopitaux Universitaires de Geneve Thonex-Geneva Switzerland CH-1226
    275 MAC UK Neuroscience Ltd Blackpool Lancashire United Kingdom FY2 0JH
    276 MAC UK Neuroscience, Research Assessment Centre Trafford Park Manchester United Kingdom M32 0UT
    277 Pollard Park Health Centre Bradford United Kingdom BD3 0DQ
    278 Clinical Investigation and Research Unit (CIRU) Brighton United Kingdom BN2 5BE
    279 Glasgow Memory Clinic Glasgow United Kingdom G20 0XA
    280 Kings College Hospital London United Kingdom SE5 9RS
    281 Dept. of Neurosciences Charing Cross Hospital London United Kingdom W6 8RF
    282 Newcastle General Hospital Newcastle upon Tyne United Kingdom NE4 5PL
    283 Northampton General Hospital Northampton United Kingdom NN1 5BD
    284 Llandough Hospital Penarth United Kingdom CF64 2XX
    285 Royal Hallamshire Hospital Sheffield United Kingdom S10 2JF
    286 Grenoside Grange Hospital Sheffield United Kingdom S35 8QS
    287 Victoria Hospital Swindon United Kingdom SN3 6BW

    Sponsors and Collaborators

    • Pfizer

    Investigators

    • Study Director: Pfizer CT.gov Call Center, Pfizer

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    Pfizer
    ClinicalTrials.gov Identifier:
    NCT00676143
    Other Study ID Numbers:
    • 3133K1-3001
    • B2521002
    • 2007-005995-14
    • NCT00909675
    First Posted:
    May 12, 2008
    Last Update Posted:
    Jun 10, 2016
    Last Verified:
    May 1, 2016
    Keywords provided by Pfizer
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details The study was conducted at 218 centers across the world. The study was terminated early by the sponsor on 06 August 2012. Enrollment had already been completed at the time of this decision. Participants who were still participating at that time were asked to complete an early withdrawal visit.
    Pre-assignment Detail
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by intravenous (IV) infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks. Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Period Title: Overall Study
    STARTED 441 658
    Treated 439 654
    COMPLETED 285 398
    NOT COMPLETED 156 260

    Baseline Characteristics

    Arm/Group Title Placebo Bapineuzumab Total
    Arm/Group Description Participants received placebo by intravenous (IV) infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks. Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Total of all reporting groups
    Overall Participants 439 654 1093
    Age (Years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [Years]
    70.3
    (7.75)
    71.0
    (7.67)
    70.7
    (7.71)
    Age, Customized (Number of participants) [Number]
    <65 years
    97
    22.1%
    132
    20.2%
    229
    21%
    >=65 years
    342
    77.9%
    522
    79.8%
    864
    79%
    Sex: Female, Male (Count of Participants)
    Female
    262
    59.7%
    421
    64.4%
    683
    62.5%
    Male
    177
    40.3%
    233
    35.6%
    410
    37.5%

    Outcome Measures

    1. Primary Outcome
    Title Change From Baseline in Alzheimer's Disease Assessment Scale-Cognitive (ADAS-Cog)/11 Subscale Total Score at Week 78
    Description 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.
    Time Frame Baseline and 78 weeks

    Outcome Measure Data

    Analysis Population Description
    The modified intent-to-treat (mITT) included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and Disability Assessment for Dementia (DAD) total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 300 414
    Least Squares Mean (Standard Error) [Unit on a scale]
    7.31
    (0.47)
    7.32
    (0.39)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Change in ADAS-Cog/11 total score was analyzed using a restricted maximum likelihood-based mixed model for repeated measures. The number of participants in each group gave 90% power to detect a 2.21 point advantage for the bapineuzumab group over placebo on the ADAS-Cog/11 total score, at the primary time point (Week 78). This calculation was based on a two-sided test with an alpha of 0.05.
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.979
    Comments Primary variable ADAS-Cog/11 total score had to reach statistical significance, p-values had to reach p <=0.05, in order to be declared effective.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value 0.02
    Confidence Interval (2-Sided) 95%
    -1.18 to 1.22
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    2. Primary Outcome
    Title Change From Baseline in Disability Assessment for Dementia (DAD) Total Score at Week 78
    Description 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 psychometric 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.
    Time Frame Baseline and 78 weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 301 411
    Least Squares Mean (Standard Deviation) [Unit on a scale]
    -14.94
    (1.00)
    -14.89
    (0.84)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Change in DAD total score was analyzed using a restricted maximum likelihood-based mixed model for repeated measures. The number of participants in each group gave 90% power to detect a 5.39 unit advantage for the bapineuzumab group over placebo on the DAD total score, at the primary time point (Week 78). This calculation was based on a two-sided test with an alpha of 0.05.
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.973
    Comments Primary variable DAD total score had to reach statistical significance, p-values had to reach p <=0.05, in order to be declared effective.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value 0.04
    Confidence Interval (2-Sided) 95%
    -2.51 to 2.60
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    3. Secondary Outcome
    Title Change From Baseline in Brain Amyloid Burden at Week 71
    Description Brain amyloid burden as imaged by 11C-Pittsburgh compound B (PIB) positron emission tomography (PET). The latter is a semi-quantitative 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.
    Time Frame Baseline and 71 weeks

    Outcome Measure Data

    Analysis Population Description
    PIB PET population included all randomized participants who enrolled in the PET substudies and who met the following criteria: a) received at least one infusion or portion of an infusion of study drug, b) had a baseline and at least one postbaseline PIB PET assessment, and c) had an SUVr for the global cortical average (GCA) ROI ≥1.35 at baseline.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 12 15
    Least Squares Mean (Standard Error) [standard uptake value ratio]
    0.03
    (0.04)
    -0.04
    (0.03)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Change in PIB PET SUVr was analyzed using a restricted maximum likelihood-based mixed model for repeated measures. The number of participants gave 90% power to detect a 0.152 unit advantage for the bapineuzumab group over placebo for PiB PET binding at Week 71. The calculations were based on 2-sided tests with alpha set at 0.05.
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.159
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value -0.07
    Confidence Interval (2-Sided) 95%
    -0.17 to 0.03
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    4. Secondary Outcome
    Title Change From Baseline in Cerebrospinal Fluid (CSF) Phospho-tau Levels at Week 71
    Description Biomarkers CSF phospho-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.
    Time Frame Baseline and 71 Weeks

    Outcome Measure Data

    Analysis Population Description
    CSF population included all randomized participants who enrolled in the CSF substudies, received at least one infusion or portion of an infusion of study drug, and had a baseline and at least one postbaseline CSF measurement (CSF phospho-tau).
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 62 76
    Least Squares Mean (Standard Error) [pg/mL]
    0.83
    (2.04)
    -0.55
    (1.84)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Change in CSF phospho-tau was analyzed using an analysis of covariance (ANCOVA) model. The analysis was based on the treatment difference estimated at Week 71 based on appropriate contrasts or LS means. The number of participants gave 90% power to detect a 13-ng/L advantage in phospho-tau for the bapineuzumab group over placebo at Week 71. The calculations were based on 2-sided tests with alpha set at 0.05.
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.620
    Comments
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value -1.38
    Confidence Interval (2-Sided) 95%
    -6.89 to 4.13
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    5. Secondary Outcome
    Title Change From Baseline in Brain Volume, as Assessed by Magnetic Resonance Imaging Brain Boundary Shift Integral (MRI BBSI), at Week 71
    Description 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.
    Time Frame Baseline and 71 Weeks

    Outcome Measure Data

    Analysis Population Description
    vMRI population included all randomized participants who enrolled in the vMRI substudies, received at least one infusion or portion of an infusion of study drug, and had a baseline and at least one postbaseline vMRI that passed quality control and was satisfactory for volumetric analysis.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 131 197
    Least Squares Mean (Standard Error) [Milliliter (mL)/year]
    17.64
    (0.69)
    17.51
    (0.56)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Change in MRI BBSI was analyzed using a restricted maximum likelihood-based mixed model for repeated measures. The number of participants gave 90% power to detect a 4.15-cm3 advantage for the bapineuzumab group over placebo on reduction in brain volume as measured by the BBSI at Week 71. The calculations were based on 2-sided tests with alpha set at 0.05.
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.884
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value -0.13
    Confidence Interval (2-Sided) 95%
    -1.89 to 1.63
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    6. Secondary Outcome
    Title Divergence of Effect on the ADAS-Cog/11 Total Scores From Week 39 to Week 78
    Description Treatment differences are estimated using least-squares (LS) means with factor levels weighted according to overall analysis population proportions. ADAS-Cog/11 total score range is 0 (least impairment) to 70 (most impairment); a negative treatment difference (bapineuzumab minus placebo) favors bapineuzumab. Within the MMRMs for ADAS-Cog/11 described for the primary analyses, linear contrasts were formed to test increasing trend of the differences between bapineuzumab and placebo from Week 39 (the 9-month visit) through Week 78 (the 18 -month visit) for each variable, which is equivalent to testing a positive slope of the differences between each bapineuzumab dose group and placebo from Week 39 through Week 78. Results are from a restricted maximum likelihood (REML)-based mixed model for MMRM.
    Time Frame Week 39 to Week 78

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab 0.5 mg/kg
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Week 39
    2.95
    (0.30)
    2.68
    (0.25)
    Week 52
    4.40
    (0.34)
    4.08
    (0.29)
    Week 65
    5.76
    (0.39)
    5.16
    (0.32)
    Week 78
    7.31
    (0.47)
    7.32
    (0.39)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Treatment Difference: Bapineuzumab - Placebo
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.700
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value 0.24
    Confidence Interval (2-Sided) 95%
    -0.97 to 1.45
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    7. Secondary Outcome
    Title Divergence of Effect on the DAD Total Scores From Week 39 to Week 78
    Description Treatment differences are estimated using least-squares (LS) means with factor levels weighted according to overall analysis population proportions. DAD total score range is 0 to 100; a positive treatment difference (bapineuzumab minus placebo) favors bapineuzumab. Within the MMRMs for ADAS-Cog/11 described for the primary analyses, linear contrasts were formed to test increasing trend of the differences between bapineuzumab and placebo from Week 39 (the 9-month visit) through Week 78 (the 18 -month visit) for each variable, which is equivalent to testing a positive slope of the differences between each bapineuzumab dose group and placebo from Week 39 through Week 78. Results are from a restricted maximum likelihood (REML)-based mixed model for MMRM.
    Time Frame Week 39 to Week 78

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab 0.5 mg/kg
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Week 39
    -6.60
    (0.65)
    -6.93
    (0.54)
    Week 52
    -9.34
    (0.73)
    -9.34
    (0.61)
    Week 65
    -12.14
    (0.91)
    -13.04
    (0.76)
    Week 78
    -14.94
    (1.00)
    -14.89
    (0.84)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Treatment Difference: Bapineuzumab - Placebo
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.949
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value 0.09
    Confidence Interval (2-Sided) 95%
    -2.61 to 2.78
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    8. Secondary Outcome
    Title Time to First Median Placebo Deterioration on ADAS-Cog/11 Total Score (European Union [EU] Analysis Plan)
    Description The time to first median placebo deterioration, defined as the first time a participant experienced an increase (worsening) from baseline 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 median time to first median placebo deterioration was presented.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Median (95% Confidence Interval) [Days]
    463.0
    457.0
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.684
    Comments
    Method Log Rank
    Comments
    9. Secondary Outcome
    Title Time to First Clinically Meaningful Deterioration on ADAS-Cog/11 Total Score (United States [US] Analysis Plan)
    Description The time to first clinically meaningful deterioration was defined as the first time a participant experienced an increase (worsening) from baseline in ADAS-Cog/11 total score of >=7.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Median (95% Confidence Interval) [Days]
    NA
    546.0
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.383
    Comments
    Method Log Rank
    Comments
    10. Secondary Outcome
    Title Time to First Median Placebo Deterioration on DAD Total Score (EU Analysis Plan)
    Description The time to first median placebo deterioration 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.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Median (95% Confidence Interval) [Days]
    464.0
    456.0
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.191
    Comments
    Method Log Rank
    Comments
    11. Secondary Outcome
    Title Time to First Clinically Meaningful Deterioration on DAD Total Score (US Analysis)
    Description 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.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Median (95% Confidence Interval) [Days]
    546.0
    546.0
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.478
    Comments
    Method Log Rank
    Comments
    12. Secondary Outcome
    Title Change From Baseline in Dependence Scale Total Score at Week 78
    Description 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.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 316 437
    Least Squares Mean (Standard Error) [Unit on a scale]
    1.33
    (0.12)
    1.22
    (0.10)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Change in DS total score was analyzed using a restricted maximum likelihood-based mixed model for repeated measures.
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.462
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value -0.11
    Confidence Interval (2-Sided) 95%
    -0.41 to 0.13
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    13. Secondary Outcome
    Title Percentage of Participants With Worsening From Baseline in ADAS-Cog/11 Total Score at Week 78 (EU Analysis Plan)
    Description Percentage of participants with worsening from baseline to Week 78 in ADAS-Cog/11 total score of ≤0, ≤3, and ≤7 points were reported. In order to calculate time to first median placebo deterioration in ADAS-Cog/11, the median change from baseline to Week 78 among the placebo participants of the mITT analysis population were determined. The median changes were used as the cutpoints for determining "deterioration" for Alzheimer's disease participants in the study. If the median change from baseline to Week 78 in the ADAS-Cog/11 total score among the placebo participants of the mITT Analysis Population is 7 points, then the first median placebo deterioration is the first time where there is a worsening on the ADAS-Cog/11 total score of 7 points or more and the worsening is confirmed by the ADAS-Cog/11 assessment at the next non-missing visit.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Worsening of 0 points
    18.3
    4.2%
    15.5
    2.4%
    Worsening of 3 points
    30.4
    6.9%
    25.5
    3.9%
    Worsening of 7 points
    42.5
    9.7%
    38.0
    5.8%
    14. Secondary Outcome
    Title Percentage of Responders for ADAS-Cog/11 Total Score at Week 78 (US Analysis Plan)
    Description Percentage of participants whose increase (worsening) from baseline to Week 78 in ADAS-Cog/11 total score was <7.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Number [Percentage of participant]
    42.2
    37.1
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.086
    Comments
    Method Cochran-Mantel-Haenszel
    Comments
    15. Secondary Outcome
    Title Percentage of Participants With Worsening From Baseline in DAD Total Score at Week 78 (EU Analysis Plan)
    Description Percentage of participants whose decrease (worsening) from baseline to Week 78 in DAD total score of ≤ 0, ≤ 6, and ≤ 12 points. In order to calculate time to first median placebo deterioration in DAD, the median change from baseline to Week 78 among the placebo participants of the mITT analysis population were determined. The median changes were used as the cutpoints for determining "deterioration" for Alzheimer's disease participants in the study. If the median change from baseline to Week 78 in the DAD total score among the placebo participants of the mITT Analysis Population is 7 points, then the first median placebo deterioration is the first time where there is a worsening on the DAD total score of 7 points or more and the worsening is confirmed by the DAD assessment at the next non-missing visit.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Worsening of 0 points
    17.2
    3.9%
    18.6
    2.8%
    Worsening of 6 points
    29.9
    6.8%
    27.4
    4.2%
    Worsening of 12 points
    39.7
    9%
    34.9
    5.3%
    16. Secondary Outcome
    Title Percentage of Responders for DAD Total Score at Week 78 (US Analysis Plan)
    Description Percentage of participants whose decrease (worsening) from baseline to Week 78 in DAD total score was <12.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 431 650
    Number [Percentage of participant]
    39.7
    34.9
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.120
    Comments
    Method Cochran-Mantel-Haenszel
    Comments
    17. Secondary Outcome
    Title Change From Baseline in Clinical Dementia Rating Sum of Boxes (CDR-SOB) Total Score at Week 78
    Description 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.
    Time Frame Baseline and 78 Weeks

    Outcome Measure Data

    Analysis Population Description
    The mITT included all randomized participants who received at least one infusion or portion of an infusion of study drug and who had a baseline and at least one post-baseline assessment of the ADAS-Cog/11 total score and DAD total score.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    Measure Participants 310 427
    Least Squares Mean (Standard Error) [Units on a scale]
    2.59
    (0.16)
    2.44
    (0.13)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Bapineuzumab
    Comments Change in CDR-SOB total score was analyzed using a restricted maximum likelihood-based mixed model for repeated measures.
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.448
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value -0.15
    Confidence Interval (2-Sided) 95%
    -0.55 to 0.24
    Parameter Dispersion Type:
    Value:
    Estimation Comments

    Adverse Events

    Time Frame 4 years
    Adverse Event Reporting Description The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
    Arm/Group Title Placebo Bapineuzumab
    Arm/Group Description Participants received placebo by intravenous (IV) infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks. Participants received bapineuzumab 0.5 mg/kg by IV infusion every 13 weeks up to 6 doses (65 weeks). Participants were followed up until 78 weeks
    All Cause Mortality
    Placebo Bapineuzumab
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total / (NaN) / (NaN)
    Serious Adverse Events
    Placebo Bapineuzumab
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 77/439 (17.5%) 137/654 (20.9%)
    Blood and lymphatic system disorders
    Anaemia 1/439 (0.2%) 1 0/654 (0%) 0
    Bone marrow failure 0/439 (0%) 0 1/654 (0.2%) 1
    Leukocytosis 1/439 (0.2%) 1 0/654 (0%) 0
    Cardiac disorders
    Acute myocardial infarction 1/439 (0.2%) 1 0/654 (0%) 0
    Angina pectoris 2/439 (0.5%) 3 1/654 (0.2%) 1
    Angina unstable 0/439 (0%) 0 1/654 (0.2%) 1
    Atrial fibrillation 0/439 (0%) 0 1/654 (0.2%) 1
    Atrioventricular block complete 0/439 (0%) 0 2/654 (0.3%) 2
    Atrioventricular block second degree 0/439 (0%) 0 1/654 (0.2%) 1
    Bradycardia 1/439 (0.2%) 1 1/654 (0.2%) 1
    Cardiac arrest 1/439 (0.2%) 1 1/654 (0.2%) 1
    Cardiovascular insufficiency 1/439 (0.2%) 1 0/654 (0%) 0
    Hypertensive heart disease 1/439 (0.2%) 1 0/654 (0%) 0
    Myocardial infarction 1/439 (0.2%) 1 0/654 (0%) 0
    Myocardial ischaemia 0/439 (0%) 0 1/654 (0.2%) 1
    Sinus bradycardia 1/439 (0.2%) 1 0/654 (0%) 0
    Supraventricular tachycardia 1/439 (0.2%) 1 1/654 (0.2%) 1
    Tachycardia 1/439 (0.2%) 1 0/654 (0%) 0
    Eye disorders
    Cataract 0/439 (0%) 0 2/654 (0.3%) 2
    Vitreous haemorrhage 0/439 (0%) 0 1/654 (0.2%) 1
    Gastrointestinal disorders
    Abdominal pain 1/439 (0.2%) 1 1/654 (0.2%) 1
    Abdominal pain upper 0/439 (0%) 0 1/654 (0.2%) 1
    Anal haemorrhage 0/439 (0%) 0 1/654 (0.2%) 1
    Colonic polyp 1/439 (0.2%) 1 0/654 (0%) 0
    Diarrhoea 0/439 (0%) 0 1/654 (0.2%) 1
    Duodenal ulcer perforation 0/439 (0%) 0 1/654 (0.2%) 3
    Gastric ulcer 0/439 (0%) 0 1/654 (0.2%) 1
    Gastrointestinal ulcer haemorrhage 0/439 (0%) 0 1/654 (0.2%) 1
    Haematemesis 1/439 (0.2%) 1 0/654 (0%) 0
    Ileus 0/439 (0%) 0 1/654 (0.2%) 1
    Inguinal hernia 2/439 (0.5%) 2 0/654 (0%) 0
    Inguinal hernia, obstructive 1/439 (0.2%) 1 0/654 (0%) 0
    Intestinal obstruction 1/439 (0.2%) 1 0/654 (0%) 0
    Nausea 0/439 (0%) 0 2/654 (0.3%) 2
    Oesophageal ulcer 0/439 (0%) 0 1/654 (0.2%) 1
    Pancreatitis 0/439 (0%) 0 1/654 (0.2%) 1
    Pancreatitis acute 0/439 (0%) 0 1/654 (0.2%) 1
    Vomiting 0/439 (0%) 0 1/654 (0.2%) 1
    General disorders
    Chest discomfort 1/439 (0.2%) 1 0/654 (0%) 0
    Chest pain 1/439 (0.2%) 1 2/654 (0.3%) 2
    Device occlusion 0/439 (0%) 0 1/654 (0.2%) 1
    Fibrosis 0/439 (0%) 0 1/654 (0.2%) 1
    General physical health deterioration 0/439 (0%) 0 1/654 (0.2%) 2
    Malaise 1/439 (0.2%) 1 0/654 (0%) 0
    Non-cardiac chest pain 1/439 (0.2%) 1 0/654 (0%) 0
    Pain 1/439 (0.2%) 1 0/654 (0%) 0
    Pyrexia 0/439 (0%) 0 2/654 (0.3%) 2
    Hepatobiliary disorders
    Bile duct stone 1/439 (0.2%) 1 0/654 (0%) 0
    Cholangitis 0/439 (0%) 0 1/654 (0.2%) 1
    Cholecystitis 1/439 (0.2%) 1 1/654 (0.2%) 1
    Cholelithiasis 0/439 (0%) 0 1/654 (0.2%) 1
    Gallbladder disorder 0/439 (0%) 0 1/654 (0.2%) 1
    Hepatic function abnormal 0/439 (0%) 0 1/654 (0.2%) 1
    Jaundice 0/439 (0%) 0 1/654 (0.2%) 1
    Immune system disorders
    Hypersensitivity 0/439 (0%) 0 1/654 (0.2%) 1
    Infections and infestations
    Abdominal abscess 0/439 (0%) 0 1/654 (0.2%) 1
    Abscess 0/439 (0%) 0 1/654 (0.2%) 1
    Appendicitis 0/439 (0%) 0 2/654 (0.3%) 2
    Bacterial Sepsis 0/439 (0%) 0 1/654 (0.2%) 1
    Bronchitis 0/439 (0%) 0 1/654 (0.2%) 1
    Cellulitis 0/439 (0%) 0 1/654 (0.2%) 1
    Gastroenteritis 1/439 (0.2%) 1 1/654 (0.2%) 1
    Herpes zoster 1/439 (0.2%) 1 0/654 (0%) 0
    Infected skin ulcer 1/439 (0.2%) 1 0/654 (0%) 0
    Kidney infection 0/439 (0%) 0 1/654 (0.2%) 1
    Lower respiratory tract infection 1/439 (0.2%) 1 0/654 (0%) 0
    Meningitis cryptococcal 1/439 (0.2%) 1 0/654 (0%) 0
    Osteomyelitis 0/439 (0%) 0 1/654 (0.2%) 1
    Paronychia 1/439 (0.2%) 1 0/654 (0%) 0
    Pneumonia 3/439 (0.7%) 3 6/654 (0.9%) 6
    Pseudomembranous colitis 1/439 (0.2%) 1 0/654 (0%) 0
    Pyelonephritis 1/439 (0.2%) 1 0/654 (0%) 0
    Sepsis 3/439 (0.7%) 4 1/654 (0.2%) 1
    Toxic shock syndrome 0/439 (0%) 0 1/654 (0.2%) 1
    Urinary tract infection 2/439 (0.5%) 2 2/654 (0.3%) 2
    Urosepsis 0/439 (0%) 0 1/654 (0.2%) 1
    Vaginitis bacterial 1/439 (0.2%) 1 0/654 (0%) 0
    Viral upper respiratory tract infection 1/439 (0.2%) 1 0/654 (0%) 0
    Injury, poisoning and procedural complications
    Accidental overdose 1/439 (0.2%) 1 2/654 (0.3%) 3
    Ankle fracture 0/439 (0%) 0 1/654 (0.2%) 1
    Contusion 1/439 (0.2%) 1 0/654 (0%) 0
    Drug administration error 0/439 (0%) 0 1/654 (0.2%) 1
    Excoriation 0/439 (0%) 0 1/654 (0.2%) 1
    Eye injury 0/439 (0%) 0 1/654 (0.2%) 1
    Fall 1/439 (0.2%) 2 2/654 (0.3%) 2
    Femoral neck fracture 0/439 (0%) 0 2/654 (0.3%) 5
    Femur fracture 1/439 (0.2%) 1 3/654 (0.5%) 3
    Head injury 0/439 (0%) 0 1/654 (0.2%) 1
    Hip fracture 2/439 (0.5%) 5 1/654 (0.2%) 1
    Humerus fracture 0/439 (0%) 0 1/654 (0.2%) 3
    Post lumbar puncture syndrome 1/439 (0.2%) 1 0/654 (0%) 0
    Pubis fracture 0/439 (0%) 0 1/654 (0.2%) 1
    Radius fracture 2/439 (0.5%) 3 0/654 (0%) 0
    Rib fracture 1/439 (0.2%) 3 0/654 (0%) 0
    Spinal compression fracture 2/439 (0.5%) 7 1/654 (0.2%) 1
    Stab wound 1/439 (0.2%) 1 0/654 (0%) 0
    Subdural haematoma 1/439 (0.2%) 1 0/654 (0%) 0
    Upper limb fracture 1/439 (0.2%) 2 0/654 (0%) 0
    Wrist fracture 2/439 (0.5%) 5 0/654 (0%) 0
    Investigations
    Blood pressure increased 1/439 (0.2%) 2 0/654 (0%) 0
    Fibrin D dimer increased 1/439 (0.2%) 1 0/654 (0%) 0
    Heart rate increased 1/439 (0.2%) 1 0/654 (0%) 0
    Streptococcus test positive 0/439 (0%) 0 1/654 (0.2%) 1
    Metabolism and nutrition disorders
    Dehydration 2/439 (0.5%) 2 3/654 (0.5%) 4
    Hypoglycaemia 1/439 (0.2%) 1 0/654 (0%) 0
    Hypokalaemia 0/439 (0%) 0 1/654 (0.2%) 1
    Hyponatraemia 0/439 (0%) 0 2/654 (0.3%) 2
    Musculoskeletal and connective tissue disorders
    Arthralgia 1/439 (0.2%) 1 0/654 (0%) 0
    Arthritis 0/439 (0%) 0 1/654 (0.2%) 1
    Back pain 1/439 (0.2%) 1 2/654 (0.3%) 2
    Intervertebral disc protrusion 0/439 (0%) 0 1/654 (0.2%) 1
    Lumbar spinal stenosis 0/439 (0%) 0 1/654 (0.2%) 1
    Osteoarthritis 1/439 (0.2%) 1 1/654 (0.2%) 1
    Polymyalgia rheumatica 0/439 (0%) 0 1/654 (0.2%) 1
    Rhabdomyolysis 2/439 (0.5%) 2 2/654 (0.3%) 2
    Spinal column stenosis 1/439 (0.2%) 1 0/654 (0%) 0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Adenocarcinoma 0/439 (0%) 0 1/654 (0.2%) 1
    Basal cell carcinoma 0/439 (0%) 0 1/654 (0.2%) 1
    Bladder cancer 1/439 (0.2%) 1 0/654 (0%) 0
    Breast cancer 2/439 (0.5%) 2 2/654 (0.3%) 2
    Breast neoplasm 1/439 (0.2%) 1 0/654 (0%) 0
    Hepatic neoplasm 1/439 (0.2%) 1 0/654 (0%) 0
    Leiomyosarcoma 0/439 (0%) 0 1/654 (0.2%) 1
    Lentigo maligna 0/439 (0%) 0 1/654 (0.2%) 1
    Metastatic neoplasm 0/439 (0%) 0 1/654 (0.2%) 1
    Neoplasm prostate 1/439 (0.2%) 1 0/654 (0%) 0
    Oesophageal carcinoma 1/439 (0.2%) 1 0/654 (0%) 0
    Prostate cancer 4/439 (0.9%) 5 1/654 (0.2%) 1
    Squamous cell carcinoma 3/439 (0.7%) 3 0/654 (0%) 0
    Nervous system disorders
    Amyotrophic lateral sclerosis 0/439 (0%) 0 1/654 (0.2%) 5
    Aphasia 0/439 (0%) 0 1/654 (0.2%) 1
    Brain stem ischaemia 1/439 (0.2%) 1 0/654 (0%) 0
    Cerebral haemorrhage 1/439 (0.2%) 1 3/654 (0.5%) 3
    Cerebral haemosiderin deposition 1/439 (0.2%) 1 0/654 (0%) 0
    Cerebral infarction 1/439 (0.2%) 1 0/654 (0%) 0
    Cerebral ischaemia 0/439 (0%) 0 1/654 (0.2%) 1
    Cerebral microhaemorrhage 0/439 (0%) 0 4/654 (0.6%) 4
    Cerebrovascular accident 1/439 (0.2%) 2 0/654 (0%) 0
    Convulsion 0/439 (0%) 0 3/654 (0.5%) 3
    Dizziness 0/439 (0%) 0 1/654 (0.2%) 2
    Epilepsy 0/439 (0%) 0 1/654 (0.2%) 1
    Grand mal convulsion 1/439 (0.2%) 1 2/654 (0.3%) 2
    Haemorrhagic stroke 1/439 (0.2%) 1 0/654 (0%) 0
    Hydrocephalus 0/439 (0%) 0 1/654 (0.2%) 1
    Ischaemic stroke 0/439 (0%) 0 2/654 (0.3%) 3
    Lacunar infarction 1/439 (0.2%) 4 0/654 (0%) 0
    Lethargy 0/439 (0%) 0 1/654 (0.2%) 1
    Loss of consciousness 0/439 (0%) 0 1/654 (0.2%) 1
    Mental impairment 0/439 (0%) 0 1/654 (0.2%) 1
    Paraesthesia 0/439 (0%) 0 1/654 (0.2%) 1
    Presyncope 0/439 (0%) 0 1/654 (0.2%) 1
    Syncope 2/439 (0.5%) 2 4/654 (0.6%) 4
    Transient ischaemic attack 0/439 (0%) 0 1/654 (0.2%) 1
    Vasogenic cerebral oedema 4/439 (0.9%) 5 40/654 (6.1%) 61
    Visual field defect 0/439 (0%) 0 1/654 (0.2%) 1
    Agitation 1/439 (0.2%) 3 2/654 (0.3%) 2
    Psychiatric disorders
    Abnormal behaviour 1/439 (0.2%) 1 0/654 (0%) 0
    Aggression 1/439 (0.2%) 1 0/654 (0%) 0
    Completed suicide 0/439 (0%) 0 1/654 (0.2%) 1
    Confusional state 2/439 (0.5%) 2 3/654 (0.5%) 3
    Delirium 1/439 (0.2%) 2 2/654 (0.3%) 2
    Depression 1/439 (0.2%) 1 0/654 (0%) 0
    Hallucination 1/439 (0.2%) 1 1/654 (0.2%) 1
    Mental status changes 2/439 (0.5%) 2 3/654 (0.5%) 3
    Restlessness 1/439 (0.2%) 1 0/654 (0%) 0
    Suicide attempt 1/439 (0.2%) 1 0/654 (0%) 0
    Renal and urinary disorders
    Acute prerenal failure 0/439 (0%) 0 1/654 (0.2%) 1
    Haematuria 0/439 (0%) 0 1/654 (0.2%) 1
    Pollakiuria 0/439 (0%) 0 1/654 (0.2%) 1
    Renal failure acute 1/439 (0.2%) 1 2/654 (0.3%) 2
    Reproductive system and breast disorders
    Benign prostatic hyperplasia 0/439 (0%) 0 1/654 (0.2%) 1
    Breast mass 1/439 (0.2%) 1 1/654 (0.2%) 1
    Rectocele 1/439 (0.2%) 1 0/654 (0%) 0
    Respiratory, thoracic and mediastinal disorders
    Asthma 0/439 (0%) 0 1/654 (0.2%) 1
    Paranasal cyst 1/439 (0.2%) 1 0/654 (0%) 0
    Pneumonia aspiration 1/439 (0.2%) 2 1/654 (0.2%) 1
    Pulmonary embolism 2/439 (0.5%) 2 3/654 (0.5%) 3
    Pulmonary oedema 1/439 (0.2%) 1 3/654 (0.5%) 3
    Respiratory failure 1/439 (0.2%) 1 0/654 (0%) 0
    Social circumstances
    Social problem 0/439 (0%) 0 1/654 (0.2%) 1
    Surgical and medical procedures
    Thyroidectomy 0/439 (0%) 0 1/654 (0.2%) 1
    Vascular disorders
    Arteriosclerosis 1/439 (0.2%) 1 0/654 (0%) 0
    Deep vein thrombosis 1/439 (0.2%) 1 5/654 (0.8%) 5
    Ischaemia 0/439 (0%) 0 1/654 (0.2%) 1
    Peripheral artery stenosis 0/439 (0%) 0 1/654 (0.2%) 1
    Other (Not Including Serious) Adverse Events
    Placebo Bapineuzumab
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 198/439 (45.1%) 298/654 (45.6%)
    Gastrointestinal disorders
    Diarrhoea 23/439 (5.2%) 30 34/654 (5.2%) 38
    Infections and infestations
    Nasopharyngitis 34/439 (7.7%) 40 45/654 (6.9%) 66
    Urinary tract infection 24/439 (5.5%) 37 30/654 (4.6%) 34
    Injury, poisoning and procedural complications
    Fall 27/439 (6.2%) 36 39/654 (6%) 47
    Nervous system disorders
    Cerebral microhaemorrhage 16/439 (3.6%) 38 76/654 (11.6%) 218
    Dizziness 23/439 (5.2%) 32 20/654 (3.1%) 26
    Headache 44/439 (10%) 98 45/654 (6.9%) 66
    Vasogenic cerebral oedema 5/439 (1.1%) 5 74/654 (11.3%) 123
    Psychiatric disorders
    Anxiety 26/439 (5.9%) 29 30/654 (4.6%) 61
    Depression 27/439 (6.2%) 73 35/654 (5.4%) 95
    Vascular disorders
    Hypertension 22/439 (5%) 50 18/654 (2.8%) 48

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    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
    Responsible Party:
    Pfizer
    ClinicalTrials.gov Identifier:
    NCT00676143
    Other Study ID Numbers:
    • 3133K1-3001
    • B2521002
    • 2007-005995-14
    • NCT00909675
    First Posted:
    May 12, 2008
    Last Update Posted:
    Jun 10, 2016
    Last Verified:
    May 1, 2016