NCT01677572

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

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
197

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Oct 2012

Longer than P75 for phase_1

Geographic Reach
1 country

32 active sites

Status
terminated

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

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 3, 2012

Completed
1 month until next milestone

Study Start

First participant enrolled

October 5, 2012

Completed
6.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2019

Completed
Last Updated

August 3, 2020

Status Verified

July 1, 2020

Enrollment Period

6.8 years

First QC Date

August 30, 2012

Last Update Submit

July 31, 2020

Conditions

Keywords

AducanumabBIIB037

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

EXPERIMENTAL

Intravenous 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.

Drug: Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb)

Low-dose #2 Aducanumab

EXPERIMENTAL

Intravenous 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.

Drug: Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb)

Placebo (low dose group)

PLACEBO COMPARATOR

Intravenous 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.

Drug: Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb)Drug: Placebo

Mid-dose Aducanumab

EXPERIMENTAL

Intravenous 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.

Drug: Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb)

Placebo (mid dose group)

PLACEBO COMPARATOR

Intravenous 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.

Drug: Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb)Drug: Placebo

High-dose Aducanumab

EXPERIMENTAL

Intravenous 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.

Drug: Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb)

Placebo (high dose group)

PLACEBO COMPARATOR

Intravenous 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.

Drug: Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb)Drug: Placebo

Aducanumab Titration

EXPERIMENTAL

Intravenous 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.

Drug: Aducanumab (recombinant, fully human anti-Aβ IgG1 mAb)

Placebo (Titration Group)

PLACEBO COMPARATOR

Intravenous 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.

Drug: Placebo

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.

Also known as: IgG1, anti-A* mAb, Fully human
Aducanumab TitrationHigh-dose AducanumabLow-dose #1 AducanumabLow-dose #2 AducanumabMid-dose AducanumabPlacebo (high dose group)Placebo (low dose group)Placebo (mid dose group)

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.

Placebo (Titration Group)Placebo (high dose group)Placebo (low dose group)Placebo (mid dose group)

Eligibility Criteria

Age50 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

Study Sites (32)

NNS Clinical Research, LLC

Tucson, Arizona, 85704, United States

Location

Senior Clinical Trials, Inc.

Laguna Hills, California, 92653, United States

Location

Torrance Clinical Research Institute, Inc.

Lomita, California, 90717, United States

Location

Collaborative Neuroscience Network, LLC

Long Beach, California, 90806, United States

Location

University of California, Los Angeles

Los Angeles, California, 90095, United States

Location

Pacific Neuroscience Medical Group

Oxnard, California, 93030, United States

Location

Pacific Research Network, Inc.

San Diego, California, 92103, United States

Location

San Francisco Clinical Research Center

San Francisco, California, 94109, United States

Location

Stanford University Medical Center

Stanford, California, 94304, United States

Location

Alzheimer's Disease Research Unit, Yale University

New Haven, Connecticut, 06520, United States

Location

Georgetown University Hospital

Washington D.C., District of Columbia, 20057, United States

Location

Brain Matters Research, Inc.

Delray Beach, Florida, 33445, United States

Location

Neuropsychiatric Research Center of Southwest Florida

Fort Myers, Florida, 33912, United States

Location

MD Clinical Trials, Inc.

Hallandale, Florida, 33009, United States

Location

Miami Jewish Health Systems

Miami, Florida, 33137, United States

Location

Galiz Research, LLC

Miami Springs, Florida, 33166, United States

Location

Compass Research, LLC

Orlando, Florida, 32806, United States

Location

Infinity Clinical Research, Inc.

Sunrise, Florida, 33351, United States

Location

Axiom Clinical Research of Florida

Tampa, Florida, 33609, United States

Location

Stedman Clinical Trials, LLC

Tampa, Florida, 33613, United States

Location

Neurostudies.net, LLC

Decatur, Georgia, 30033, United States

Location

Alexian Brothers Neurosciences Institute

Elk Grove Village, Illinois, 60007, United States

Location

Indiana University School of Medicine

Indianapolis, Indiana, 46202, United States

Location

St. Louis Clinical Trials, LLC

St Louis, Missouri, 63118, United States

Location

Memory Enhancement Center of America, Inc.

Eatontown, New Jersey, 07724, United States

Location

CRI Lifetree

Marlton, New Jersey, 08053, United States

Location

Advanced Memory Research Institute of NJ

Toms River, New Jersey, 08755, United States

Location

Empire Neurology, PC

Latham, New York, 12110, United States

Location

Insight Clinical Trials LLC

Beachwood, Ohio, 44122, United States

Location

Summit Research Network (Oregon) Inc.

Portland, Oregon, 97210, United States

Location

Brown Hospital

East Providence, Rhode Island, 02906, United States

Location

Rhode Island Hospital

Providence, Rhode Island, 02903, United States

Location

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.

  • Sevigny 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.

MeSH Terms

Conditions

Alzheimer Disease

Interventions

aducanumabImmunoglobulin G

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Immunoglobulin IsotypesAntibodiesImmunoglobulinsImmunoproteinsBlood ProteinsProteinsAmino Acids, Peptides, and ProteinsSerum GlobulinsGlobulins

Study Officials

  • Medical Director

    Biogen

    STUDY DIRECTOR

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

Locations