Study Stopped
Study was discontinued based on futility analysis conducted on Phase 3 trials (NCT02477800 and NCT02484547) and not based on safety concerns.
Multiple Dose Study of Aducanumab (BIIB037) (Recombinant, Fully Human Anti-Aβ IgG1 mAb) in Participants With Prodromal or Mild Alzheimer's Disease
PRIME
A Randomized, Double-Blinded, Placebo-Controlled Multiple Dose Study to Assess the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of BIIB037 in Subjects With Prodromal or Mild Alzheimer's Disease
2 other identifiers
interventional
197
1 country
32
Brief Summary
The primary objective of this study is to evaluate the safety and tolerability of multiple doses of Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb) in participants with prodromal or mild Alzheimer's Disease (AD). The secondary objectives of this study are to assess the effect on cerebral amyloid plaque content as measured by florbetapir-fluorine-18 (18F-AV-45F-AV-45) positron emission tomography (PET) imaging, to assess the multiple dose serum concentrations of Aducanumab and to evaluate the immunogenicity of Aducanumab after multiple dose administration in this population.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Oct 2012
Longer than P75 for phase_1
32 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 30, 2012
CompletedFirst Posted
Study publicly available on registry
September 3, 2012
CompletedStudy Start
First participant enrolled
October 5, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
July 31, 2019
CompletedAugust 3, 2020
July 1, 2020
6.8 years
August 30, 2012
July 31, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants with Adverse Events
Baseline to week 518
Secondary Outcomes (3)
Change from baseline in florbetapir-fluorine-18 (18F-AV-45F-AV-45) positron emission tomography (PET) imaging in certain brain areas.
Day 1, Weeks 26, 54, End of year 2, 3, and 4
Multiple dose pharmacokinetic (PK) serum concentrations of Aducanumab
Up to week 518
Change from Baseline in Incidence of Anti-Aducanumab Antibodies in Serum.
Up to week 518
Study Arms (9)
Low-dose #1 Aducanumab
EXPERIMENTALIntravenous doses of low-dose level #1 Aducanumab administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose administered approximately 4 weeks apart for up to an additional 112 doses.
Low-dose #2 Aducanumab
EXPERIMENTALIntravenous doses of low-dose level #2 Aducanumab administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose administered approximately 4 weeks apart for up to an additional 112 doses.
Placebo (low dose group)
PLACEBO COMPARATORIntravenous doses of placebo administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose approximately 4 weeks apart for up to an additional 112 doses.
Mid-dose Aducanumab
EXPERIMENTALIntravenous doses of mid-dose Aducanumab administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose administered approximately 4 weeks apart for up to an additional 112 doses.
Placebo (mid dose group)
PLACEBO COMPARATORIntravenous doses of placebo administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose administered approximately 4 weeks apart for up to an additional 112 doses.
High-dose Aducanumab
EXPERIMENTALIntravenous doses of high-dose Aducanumab administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose administered approximately 4 weeks apart for up to an additional 112 doses.
Placebo (high dose group)
PLACEBO COMPARATORIntravenous doses of placebo administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose administered approximately 4 weeks apart for up to an additional 112 doses.
Aducanumab Titration
EXPERIMENTALIntravenous doses of Aducanumab administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose approximately 4 weeks apart for up to an additional 112 doses.
Placebo (Titration Group)
PLACEBO COMPARATORIntravenous doses of placebo administered approximately 4 weeks apart over approximately 52 weeks (a total of 14 doses). Qualifying participants can continue into the long-term extension at a dose approximately 4 weeks apart for up to an additional 112 doses.
Interventions
Participants will receive an infusion of Aducanumab on Days 1, 29, 57, 85, 113, 141, 169, 197, 225, 253, 281, 309, 337, and 365 (±2 days) at the study clinic and assigned does levels. The infusion will be administered for approximately 1 hour. The study is conducted with a staggered, parallel group design, with the first 3 treatment arms conducted in parallel, 2 further treatment arms subsequently beginning in parallel and the 2 last treatment arms subsequently beginning in parallel. Qualifying participants can enter the long-term extension period at doses described in the treatment arms for up to an additional 112 doses.
Placebo to mimic the low dose, mid-dose and high-dose treatment arms of the experimental intervention; administered by intravenous (IV) infusion on Days 1, 29, 57, 85, 113, 141, 169, 197, 225, 253, 281, 309, 337, and 365 (±2 days) at the study clinic. Qualifying participants can enter the long-term extension period at doses described in the treatment arms for up to an additional 112 doses.
Eligibility Criteria
You may qualify if:
- Participants must be ambulatory.
- Participants must meet the following core clinical criteria as determined by the Investigator:
- Prodromal Alzheimer's Disease (AD) (all of the criteria must apply):
- Mini Mental State Examination (MMSE) scores between 24-30 (inclusive)
- a spontaneous memory complaint
- objective memory loss defined as a free recall score of ≤27 on the Free and Cued Selective Reminding Test (FCSRT)
- a global Clinical Dementia Rating Scale (CDR) score of 0.5
- absence of significant levels of impairment in other cognitive domains
- essentially preserved activities of daily living, and an absence of dementia. OR
- Mild Alzheimer's Disease (AD) criteria (all criteria must apply):
- Mini Mental State Examination (MMSE) scores between 20-26 (inclusive)
- a global Clinical Dementia Rating Scale (CDR) of 0.5 or 1.0
- meeting the National Institute on Aging-Alzheimer's Association core clinical criteria for probable AD.
- Participants must have a positive florbetapir positron emission tomography (PET) amyloid scan.
- Participants must consent to apolipoprotein E (ApoE) genotyping.
- +2 more criteria
You may not qualify if:
- Any medical or neurological condition (other than Alzheimer's Disease) that might be a contributing cause of the participant's cognitive impairment.
- Have had a stroke or Transient Ischemic Attack (TIA) or unexplained loss of consciousness in the past 1 year.
- Clinically significant psychiatric illness in past 6 months.
- Seizure in the past 3 years.
- Poorly controlled diabetes mellitus.
- History of unstable angina, myocardial infarction, chronic heart failure, or clinical significant conduction abnormalities within 1 year prior to Screening.
- Indication of impaired renal or liver function.
- Have human immunodeficiency virus (HIV) infection.
- Have a significant systematic illness or infection in past 30 days.
- Brain MRI showing evidence of acute or sub-acute micro or macrohemorrhage, greater than 4 microhemorrhages, cortical infarct or greater than one 1 lunar infarct.
- Any contraindications to brain MRI or positron emission tomography (PET) scans.
- Negative positron emission tomography (PET) scan with any amyloid-targeting ligand within 48 weeks of Screening.
- Clinically significant 12-lead electrocardiogram (ECG) abnormalities.
- Alcohol or substance abuse in past 1 year.
- Taking blood thinners (except for aspirin at a prophylactic dose or less)
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Biogenlead
Study Sites (32)
NNS Clinical Research, LLC
Tucson, Arizona, 85704, United States
Senior Clinical Trials, Inc.
Laguna Hills, California, 92653, United States
Torrance Clinical Research Institute, Inc.
Lomita, California, 90717, United States
Collaborative Neuroscience Network, LLC
Long Beach, California, 90806, United States
University of California, Los Angeles
Los Angeles, California, 90095, United States
Pacific Neuroscience Medical Group
Oxnard, California, 93030, United States
Pacific Research Network, Inc.
San Diego, California, 92103, United States
San Francisco Clinical Research Center
San Francisco, California, 94109, United States
Stanford University Medical Center
Stanford, California, 94304, United States
Alzheimer's Disease Research Unit, Yale University
New Haven, Connecticut, 06520, United States
Georgetown University Hospital
Washington D.C., District of Columbia, 20057, United States
Brain Matters Research, Inc.
Delray Beach, Florida, 33445, United States
Neuropsychiatric Research Center of Southwest Florida
Fort Myers, Florida, 33912, United States
MD Clinical Trials, Inc.
Hallandale, Florida, 33009, United States
Miami Jewish Health Systems
Miami, Florida, 33137, United States
Galiz Research, LLC
Miami Springs, Florida, 33166, United States
Compass Research, LLC
Orlando, Florida, 32806, United States
Infinity Clinical Research, Inc.
Sunrise, Florida, 33351, United States
Axiom Clinical Research of Florida
Tampa, Florida, 33609, United States
Stedman Clinical Trials, LLC
Tampa, Florida, 33613, United States
Neurostudies.net, LLC
Decatur, Georgia, 30033, United States
Alexian Brothers Neurosciences Institute
Elk Grove Village, Illinois, 60007, United States
Indiana University School of Medicine
Indianapolis, Indiana, 46202, United States
St. Louis Clinical Trials, LLC
St Louis, Missouri, 63118, United States
Memory Enhancement Center of America, Inc.
Eatontown, New Jersey, 07724, United States
CRI Lifetree
Marlton, New Jersey, 08053, United States
Advanced Memory Research Institute of NJ
Toms River, New Jersey, 08755, United States
Empire Neurology, PC
Latham, New York, 12110, United States
Insight Clinical Trials LLC
Beachwood, Ohio, 44122, United States
Summit Research Network (Oregon) Inc.
Portland, Oregon, 97210, United States
Brown Hospital
East Providence, Rhode Island, 02906, United States
Rhode Island Hospital
Providence, Rhode Island, 02903, United States
Related Publications (2)
Chen T, O'Gorman J, Castrillo-Viguera C, Rajagovindan R, Curiale GG, Tian Y, Patel D, von Rosenstiel P, von Hehn C, Salloway S, Hock C, Nitsch RM, Haeberlein SB, Sandrock A, Singhal P. Results from the long-term extension of PRIME: A randomized Phase 1b trial of aducanumab. Alzheimers Dement. 2024 May;20(5):3406-3415. doi: 10.1002/alz.13755. Epub 2024 Apr 3.
PMID: 38567735DERIVEDSevigny J, Chiao P, Bussiere T, Weinreb PH, Williams L, Maier M, Dunstan R, Salloway S, Chen T, Ling Y, O'Gorman J, Qian F, Arastu M, Li M, Chollate S, Brennan MS, Quintero-Monzon O, Scannevin RH, Arnold HM, Engber T, Rhodes K, Ferrero J, Hang Y, Mikulskis A, Grimm J, Hock C, Nitsch RM, Sandrock A. The antibody aducanumab reduces Abeta plaques in Alzheimer's disease. Nature. 2016 Sep 1;537(7618):50-6. doi: 10.1038/nature19323.
PMID: 27582220DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Medical Director
Biogen
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 30, 2012
First Posted
September 3, 2012
Study Start
October 5, 2012
Primary Completion
July 31, 2019
Study Completion
July 31, 2019
Last Updated
August 3, 2020
Record last verified: 2020-07