Alzheimer's DiseasePhase 1NCT01369225
Open Label Extension Study Evaluating Safety and Tolerability of AAB-003 (PF-05236812) in Subject With Mild to Moderate Alzheimer's Disease
A Phase 1 study testing AAB-003 (PF-05236812) in people with Alzheimer's Disease, run by Pfizer at 21 sites in 2 countries.
Trial summary
This is a study to evaluate the safety and tolerability of multiple doses of AAB-003 (PF-05236812) in patients with mild to moderate Alzheimer's Disease. Patients who complete study B2601001 may participate in this trial and receive AAB-003 (PF-05236812). Each patient's participation will last approximately 52 weeks. Read more about this study
- Who is it for?
- Ages 50 to 90 years
- Conditions the study is for
- Alzheimer's Disease
- What is being tested?
- AAB-003 (PF-05236812)
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 52 participants
- Where
- 21 sitesin 2 countries
- Study dates
- Jul 2011to Aug 2014
- Phase
- Phase 1
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 50 to 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Successful completion of study B2601001
- MMSE 12 or greater
Who cannot join
- Study B2601001 Week 32 MRI with clinically important exclusionary findings.
- Experienced SAE, vasogenic edema and/or intracranial hemorrhage in study B2601001
Trial locations and contacts
21 sites in 2 countries.
21 sites in 2 countries
United States15 sites
Atlanta Center for Medical Research
Atlanta, Georgia, 30308
Foers Medical Arts Pharmacy
Bethesda, Maryland, 20814
Millennium Psychiatric Associates, LLC
Creve Coeur, Missouri, 63141
Memory Enhancement Center of America, Inc.
Eatontown, New Jersey, 07724
MD Clinical
Hallandale, Florida, 33009
Borgess Medical Center
Kalamazoo, Michigan, 49048
Borgess Research Institute
Kalamazoo, Michigan, 49048
KNI Southwest Michigan Imaging Center, LLC
Kalamazoo, Michigan, 49048
Central Jersey Radiology
Oakhurst, New Jersey, 07755
Munroe Regional Medical Center
Ocala, Florida, 34471
Renstar Medical Research
Ocala, Florida, 34471
Trinity Care Solutions
Ocala, Florida, 34471
Advanced Imaging of Ocala
Ocala, Florida, 34481
CBH Health, LLC
Rockville, Maryland, 20850
DePaul Health Center-MRI Department
St Louis, Missouri, 63044
South Korea6 sites
Inha University Hospital, Department of Neurology
Incheon, 400-711
Seoul National University Hospital, Department Neurology
Seongnam-si, Gyeonggi-do, 463-707
Samsung Medical Center, Department of Neurology
Seoul, 1350710
Korea University Anam Hospital IRB
Seoul, 136-705
ASAN Medical Center
Seoul, 138-736
Konkuk University Medical Center, Department of Neurology
Seoul, 143914
About this study
Official title: A Multicenter, Open-label Extension, Multiple Dose, Parallel Group Study To Investigate The Long-term Safety And Tolerability Of Aab-003 (Pf-05236812) Administered Intravenously In Subjects With Mild To Moderate Alzheimer's Disease Previously Treated With Aab-003 Or Placebo In Protocol B2601001
This is a study to evaluate the safety and tolerability of multiple doses of AAB-003 (PF-05236812) in patients with mild to moderate Alzheimer's Disease. Patients who complete study B2601001 may participate in this trial and receive AAB-003 (PF-05236812). Each patient's participation will last approximately 52 weeks.
- Conditions
- Alzheimer's Disease
- Being tested
- AAB-003 (PF-05236812)
- Keywords
- Randomized, Safety Study, Open Label
- Medical subject headings
- Alzheimer Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AAB-003 (PF-05236812)Drug
0.5 mg/kg AAB-003, IV
AAB-003 (PF-05236812)Drug
1 mg/kg AAB-003, IV
AAB-003 (PF-05236812)Drug
2 mg/kg AAB-003, IV
AAB-003 (PF-05236812)Drug
4 mg/kg AAB-003, IV
AAB-003 (PF-05236812)Drug
8 mg/kg AAB-003, IV
| Study group | Role | What they receive |
|---|---|---|
| 0.5 mg/kg AAB-003 | Experimental | Not described Receives: Drug: AAB-003 (PF-05236812) |
| 1 mg/kg AAB-003 | Experimental | Not described Receives: Drug: AAB-003 (PF-05236812) |
| 2 mg/kg AAB-003 | Experimental | Not described Receives: Drug: AAB-003 (PF-05236812) |
| 4 mg/kg AAB-003 | Experimental | Not described Receives: Drug: AAB-003 (PF-05236812) |
| 8 mg/kg AAB-003 | Experimental | Not described Receives: Drug: AAB-003 (PF-05236812) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
An AE was any untoward medical occurrence in a participant who received study drug. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pre-treatment state. AEs included both SAEs and non-SAEs.
Measured: Baseline up to Week 52
Number of Participants With Laboratory Abnormalities Meeting the Criteria for Potential Clinical Concern
The following laboratory parameters were analyzed: hematology (hemoglobin, hematocrit, red blood cell [RBC] count, RBC morphology, platelet count, white blood cell [WBC] count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes); blood chemistry (blood urea nitrogen [BUN], creatinine, glucose, calcium, sodium, potassium, chloride, total bicarbonate, aspartate aminotransferase [AST], alanine aminotransferase [ALT], total bilirubin, alkaline phosphatase, uric acid, albumin, and total protein; urinalysis (pH, glucose, protein, blood, ketones, nitrites, leukocyte esterase, microscopy [if urine dipstick was positive for blood, protein, nitrites or leukocyte esterase]); others (coagulation panel, circulating immune complex, and complement activation).
Measured: Baseline up to Week 52
Number of Participants With Potentially Clinically Important Vital Sign Findings
Vital signs assessment included pulse rate and blood pressure. Criteria for vital sign values meeting potential clinical concern included: supine/sitting pulse rate <40 or >120 beats per minute (bpm); standing pulse rate <40 or >140 bpm; systolic blood pressure (SBP) of more than or equal to (>=)30 millimeters of mercury (mm Hg) change from baseline in same posture or SBP <90 mm Hg, diastolic blood pressure (DBP) >=20 mmHg change from baseline in same posture or DBP <50 mm Hg.
Measured: Baseline up to Week 52
Number of Participants With Potentially Clinically Important Electrocardiogram (ECG) Findings
ECG parameters included PR interval, QRS interval, and QT interval. Criteria for ECG changes meeting potential clinical concern included: PR interval >=300 milliseconds (msec) or >=25% increase when baseline is >200 msec and >=50% increase when baseline is less than or equal to (<=)200 msec; QRS interval >=200 msec or >=50% increase from baseline when baseline is less than or equal to 100 msec and >=25% increase when baseline is >100 msec; and QTcF >=450 msec or >=30 msec increase.
Measured: Baseline up to Week 52
Number of Participants With Abnormal Physical Examination Findings
A full physical examination consisted of an examination of the abdomen, genitourinary and cardiovascular systems, lungs, lymph nodes, mouth, musculoskeletal and neurological systems, skin, extremities, head, ears, eyes, nose, throat and thyroid gland. Criteria for abnormal physical findings was based on the investigator's discretion and any new physical examination findings were documented as AEs. Only sites with at least 1 participant abnormality are reported.
Measured: Baseline up to Week 52
Number of Participants With Abnormal Neurological Examination Findings
Neurological examinations were done to the extent needed to assess the subject for any potential changes in neurological status, as determined by the investigator. Examinations included level of consciousness, speech, cranial nerves, motor, sensory, coordination, gait, and tendon reflexes. Only tests with at least 1 participant abnormality are reported.
Measured: Baseline up to Week 52
Number of Participants With Suicidal Ideation or Suicidal Behavior as Assessed by the Columbia-Suicide Severity Rating Scale (C-SSRS)
The C-SSRS captures the occurrence, severity, and frequency of suicide-related thoughts and behaviors during the assessment period. C-SSRS assesses whether participant experienced the following: completed suicide; suicide attempt; preparatory acts towards imminent suicidal behavior; suicidal ideation; self-injurious behavior, no suicidal intent. The results presented are the number of participants with completed suicide or non-fatal suicide events or behaviors. Worsening of suicidal ideation was an increase in severity of suicidal ideation from baseline.
Measured: Baseline up to Week 52
Number of Participants With Any New Magnetic Resonance Imaging (MRI) Findings
Brain MRIs were collected to assess for potential drug-related changes that might have constituted a safety concern. Findings suggestive of either vasogenic edema or intracranial hemorrhage were to be reported as AEs of special circumstance.
Measured: Baseline up to Week 52
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jun 2011 (estimated)
- Study startJul 2011
- Primary completionAug 2014
- Study completionAug 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Alzheimer's DiseaseStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 52 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- JANSSEN Alzheimer Immunotherapy Research & Development, LLC
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01369225
- Sponsor's protocol ID
- B2601003
- Status last verified
- Jan 2017
- First submitted
- 10 May 2011
- Last updated
- 10 Mar 2017
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Delnomdedieu M, Duvvuri S, Li DJ, Atassi N, Lu M, Brashear HR, Liu E, Ness S, Kupiec JW. First-In-Human safety and long-term exposure data for AAB-003 (PF-05236812) and biomarkers after intravenous infusions of escalating doses in patients with mild to moderate Alzheimer's disease. Alzheimers Res Ther. 2016 Mar 1;8(1):12. doi: 10.1186/s13195-016-0177-y.
PubMed 26925577
Study at a glance
From the registry record, last updated by the sponsor on 10 Mar 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Multicenter, Open-label Extension, Multiple Dose, Parallel Group Study To Investigate The Long-term Safety And Tolerability Of Aab-003 (Pf-05236812) Administered Intravenously In Subjects With Mild To Moderate Alzheimer's Disease Previously Treated With Aab-003 Or Placebo In Protocol B2601001
- ClinicalTrials.gov ID
- NCT01369225
- Acronym / sponsor ID
- B2601003
- Conditions
- Alzheimer's Disease
- Keywords
- Randomized, Safety Study, Open Label
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 52 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Collaborators
- JANSSEN Alzheimer Immunotherapy Research & Development, LLC
- Study start
- Jul 2011
- Primary completion
- Aug 2014 (actual)
- Study completion
- Aug 2014 (actual)
- First posted
- 8 Jun 2011 (estimated)
- Results
- Posted 10 Mar 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a study to evaluate the safety and tolerability of multiple doses of AAB-003 (PF-05236812) in patients with mild to moderate Alzheimer's Disease. Patients who complete study B2601001 may participate in this trial and receive AAB-003 (PF-05236812). Each patient's participation will last approximately 52 weeks.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| 0.5 mg/kg AAB-003 | Experimental | Drug: AAB-003 (PF-05236812) |
| 1 mg/kg AAB-003 | Experimental | Drug: AAB-003 (PF-05236812) |
| 2 mg/kg AAB-003 | Experimental | Drug: AAB-003 (PF-05236812) |
| 4 mg/kg AAB-003 | Experimental | Drug: AAB-003 (PF-05236812) |
| 8 mg/kg AAB-003 | Experimental | Drug: AAB-003 (PF-05236812) |
Who may qualify
- Ages
- 50 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Successful completion of study B2601001
- MMSE 12 or greater
Key exclusion criteria (2 listed)
- Study B2601001 Week 32 MRI with clinically important exclusionary findings.
- Experienced SAE, vasogenic edema and/or intracranial hemorrhage in study B2601001
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| AAB-003 (PF-05236812)0.5 mg/kg AAB-003, IV | Drug | 0.5 mg/kg AAB-003 |
| AAB-003 (PF-05236812)1 mg/kg AAB-003, IV | Drug | 1 mg/kg AAB-003 |
| AAB-003 (PF-05236812)2 mg/kg AAB-003, IV | Drug | 2 mg/kg AAB-003 |
| AAB-003 (PF-05236812)4 mg/kg AAB-003, IV | Drug | 4 mg/kg AAB-003 |
| AAB-003 (PF-05236812)8 mg/kg AAB-003, IV | Drug | 8 mg/kg AAB-003 |
Primary outcome
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time frame: Baseline up to Week 52
An AE was any untoward medical occurrence in a participant who received study drug. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pre-treatment state. AEs included both SAEs and non-SAEs.
Number of Participants With Laboratory Abnormalities Meeting the Criteria for Potential Clinical Concern
Time frame: Baseline up to Week 52
The following laboratory parameters were analyzed: hematology (hemoglobin, hematocrit, red blood cell [RBC] count, RBC morphology, platelet count, white blood cell [WBC] count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes); blood chemistry (blood urea nitrogen [BUN], creatinine, glucose, calcium, sodium, potassium, chloride, total bicarbonate, aspartate aminotransferase [AST], alanine aminotransferase [ALT], total bilirubin, alkaline phosphatase, uric acid, albumin, and total protein; urinalysis (pH, glucose, protein, blood, ketones, nitrites, leukocyte esterase, microscopy [if urine dipstick was positive for blood, protein, nitrites or leukocyte esterase]); others (coagulation panel, circulating immune complex, and complement activation).
Number of Participants With Potentially Clinically Important Vital Sign Findings
Time frame: Baseline up to Week 52
Vital signs assessment included pulse rate and blood pressure. Criteria for vital sign values meeting potential clinical concern included: supine/sitting pulse rate <40 or >120 beats per minute (bpm); standing pulse rate <40 or >140 bpm; systolic blood pressure (SBP) of more than or equal to (>=)30 millimeters of mercury (mm Hg) change from baseline in same posture or SBP <90 mm Hg, diastolic blood pressure (DBP) >=20 mmHg change from baseline in same posture or DBP <50 mm Hg.
Number of Participants With Potentially Clinically Important Electrocardiogram (ECG) Findings
Time frame: Baseline up to Week 52
ECG parameters included PR interval, QRS interval, and QT interval. Criteria for ECG changes meeting potential clinical concern included: PR interval >=300 milliseconds (msec) or >=25% increase when baseline is >200 msec and >=50% increase when baseline is less than or equal to (<=)200 msec; QRS interval >=200 msec or >=50% increase from baseline when baseline is less than or equal to 100 msec and >=25% increase when baseline is >100 msec; and QTcF >=450 msec or >=30 msec increase.
Number of Participants With Abnormal Physical Examination Findings
Time frame: Baseline up to Week 52
A full physical examination consisted of an examination of the abdomen, genitourinary and cardiovascular systems, lungs, lymph nodes, mouth, musculoskeletal and neurological systems, skin, extremities, head, ears, eyes, nose, throat and thyroid gland. Criteria for abnormal physical findings was based on the investigator's discretion and any new physical examination findings were documented as AEs. Only sites with at least 1 participant abnormality are reported.
Number of Participants With Abnormal Neurological Examination Findings
Time frame: Baseline up to Week 52
Neurological examinations were done to the extent needed to assess the subject for any potential changes in neurological status, as determined by the investigator. Examinations included level of consciousness, speech, cranial nerves, motor, sensory, coordination, gait, and tendon reflexes. Only tests with at least 1 participant abnormality are reported.
Number of Participants With Suicidal Ideation or Suicidal Behavior as Assessed by the Columbia-Suicide Severity Rating Scale (C-SSRS)
Time frame: Baseline up to Week 52
The C-SSRS captures the occurrence, severity, and frequency of suicide-related thoughts and behaviors during the assessment period. C-SSRS assesses whether participant experienced the following: completed suicide; suicide attempt; preparatory acts towards imminent suicidal behavior; suicidal ideation; self-injurious behavior, no suicidal intent. The results presented are the number of participants with completed suicide or non-fatal suicide events or behaviors. Worsening of suicidal ideation was an increase in severity of suicidal ideation from baseline.
Number of Participants With Any New Magnetic Resonance Imaging (MRI) Findings
Time frame: Baseline up to Week 52
Brain MRIs were collected to assess for potential drug-related changes that might have constituted a safety concern. Findings suggestive of either vasogenic edema or intracranial hemorrhage were to be reported as AEs of special circumstance.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Mar 2017.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 26925577Delnomdedieu M, Duvvuri S, Li DJ, Atassi N, Lu M, Brashear HR, Liu E, Ness S, Kupiec JW. First-In-Human safety and long-term exposure data for AAB-003 (PF-05236812) and biomarkers after intravenous infusions of escalating doses in patients with mild to moderate Alzheimer's disease. Alzheimers Res Ther. 2016 Mar 1;8(1):12. doi: 10.1186/s13195-016-0177-y.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
21 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing AAB-003 (PF-05236812) in people with Alzheimer's Disease, run by Pfizer at 21 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 10 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 21 sites in United States, South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 10 Mar 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs) (time frame: Baseline up to Week 52). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01369225, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Mar 2017; AzTrials last refreshed its copy on 6 Nov 2026.