Mild Cognitive Impairment (MCI)ADNI3NCT02854033
Alzheimer's Disease Neuroimaging Initiative 3
An observational study of Mild Cognitive Impairment (MCI) and Alzheimer's Disease (AD), run by University of Southern California at 59 sites in 2 countries.
Trial summary
Since its launch in 2004, the overarching aim of the Alzheimer's Disease Neuroimaging Initiative (ADNI) has been realized in informing the design of therapeutic trials in AD. ADNI3 continues the previously funded ADNI-1, ADNI-GO, and ADNI-2 studies that have been combined public/private collaborations between academia… Read more about this study
- Who is it for?
- Ages 55 to 90 yearsHealthy volunteers can take part
- Conditions the study is for
- Mild Cognitive Impairment (MCI), Alzheimer's Disease (AD)
- How many people
- 1,141 participants
- Where
- 59 sitesin 2 countries
- Study dates
- 2 Dec 2016to 28 May 2024
- Phase
- Observational
- Are there results?
- None posted in the registry
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 55 to 90 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Cognitively normal (CN), mild cognitive impairment (MCI), and mild AD dementia participants.
Who may be able to join
- Participant with or without subjective memory complaints, verified by a study partner, beyond what one would expect for age
- Normal memory function documented by scoring above education adjusted cutoffs on the Logical Memory II subscale (Delayed Paragraph Recall, Paragraph A only) from the Wechsler Memory Scale -Revised (the maximum score is 25):
- 9 for 16 or more years of education
- 5 for 8-15 years of education
- 3 for 0-7 years of education
- Mini-Mental State Exam score between 24 and 30 inclusive (Exceptions may be made for participants with less than 8 years of education at the discretion of the Project Director)
Show all 57Show fewer
- Clinical Dementia Rating = 0. Memory Box score must be 0
- Cognitively normal, based on an absence of significant impairment in cognitive functions or activities of daily living
- Stability of Permitted Medications for at least 4 weeks:
- Stable doses of antidepressants lacking significant anticholinergic side effects (if they are currently adequately treated for depressive symptoms and do not have a history of major depression within the past 1 years)
- Estrogen replacement therapy is permissible
- Gingko biloba is permissible, but discouraged
- Washout from psychoactive medication (e.g., excluded antidepressants, neuroleptics, chronic anxiolytics or sedative hypnotics, etc.) for at least 4 weeks prior to screening.
- Participant must express a subjective memory concern as reported by participant, or recalled by study partner or clinician.
- Abnormal memory function documented by scoring below education adjusted cutoffs on the Logical Memory II subscale (Delayed Paragraph Recall, Paragraph A only) from the Wechsler Memory Scale -Revised (the maximum score is 25):
- < 11 for 16 or more years of education b. ≤ 9 for 8-15 years of education c. ≤ 6 for 0-7 years of education
- Mini-Mental State Exam score between 24 and 30 inclusive (Exceptions may be made for participants with less than 8 years of education at the discretion of the Project Director)
- Clinical Dementia Rating = 0.5. Memory Box score must be at least 0.5
- General cognition and functional performance sufficiently preserved such that a diagnosis of Alzheimer's disease cannot be made by the site physician at the time of the Screening Visit
- Stability of Permitted Medications for at least 4 weeks:
- Stable doses of antidepressants lacking significant anticholinergic side effects (if they are currently adequately treated for depressive symptoms and do not have a history of major depression within the past 1 years)
- Cholinesterase inhibitors and memantine are allowable if stable for 12 weeks prior to Screening Visit
- Estrogen replacement therapy is permissible
- Gingko biloba is permissible, but discouraged
- Washout from psychoactive medication (e.g., excluded antidepressants, neuroleptics, chronic anxiolytics or sedative hypnotics, etc.) for at least 4 weeks prior to screening.
- Participant must express a subjective memory concern as reported by participant, or recalled by study partner or clinician.n.
- Abnormal memory function documented by scoring below education adjusted cutoffs on the Logical Memory II subscale (Delayed Paragraph Recall, Paragraph A only) from the Wechsler Memory Scale -Revised (the maximum score is 25):
- ≤ 8 for 16 or more years of education
- ≤ 4 for 8-15 years of education
- ≤ 2 for 0-7 years of education
- Mini-Mental State Exam score between 20 and 26 inclusive (Exceptions may be made for participants with less than 8 years of education at the discretion of the Project Director)
- Clinical Dementia Rating = 0.5 or 1.0
- NINCDS (National Institute of Neurological and Communicative Disorders and Stroke) -ADRDA (Alzheimer's Disease and Related Disorders Association) criteria for probable AD
- Stability of Permitted Medications for at least 4 weeks:
- Stable doses of antidepressants lacking significant anticholinergic side effects (if they are currently adequately treated for depressive symptoms and do not have a history of major depression within the past 1 years)
- Cholinesterase inhibitors and memantine are allowable if stable for 12 weeks prior to Screening Visit
- Estrogen replacement therapy is permissible
- Gingko biloba is permissible, but discouraged
- Washout from psychoactive medication (e.g., excluded antidepressants, neuroleptics, chronic anxiolytics or sedative hypnotics, etc.) for at least 4 weeks prior to screening.
- Geriatric Depression Scale score less than 6.
- Age between 55-90 years (inclusive).
- Study partner who has frequent contact with the participant (i.e., minimum average of 10 hours per week) and is available to accompany the participant to all clinic visits for the duration of the protocol.
- Visual and auditory acuity adequate for neuropsychological testing.
- Good general health with no diseases expected to interfere with the study.
- Participant is not pregnant, lactating, or of childbearing potential (i.e. women must be two years post-menopausal or surgically sterile).
- Willing and able to participate in a longitudinal imaging study.
- Modified Hachinski Ischemic Score less than or equal to 4.
- Completed six grades of education or has a good work history (sufficient to exclude mental retardation).
- Must speak English or Spanish fluently.
- Willing to undergo repeated MRIs (3Tesla) and at least two PET scans
- Agrees to collection of blood for genomic analysis (including GWAS (genome-wide association study) sequencing and other analysis), APOE (Apolipoprotein E) testing and biospecimen banking.
- Agrees to collection of blood for biomarker testing.
- Agrees to at least one lumbar puncture for the collection of CSF.
- Agrees to share genomic data and biomarker samples. Inclusion Criteria Specific to Rollover Participants"
- The following additional inclusion criteria apply to all diagnostic categories for rollover participants only:
- Must have been enrolled and followed in ADNI-1, ADNI-GO, or ADNI-2 for at least one year.
- Willing and able to continue to participate in an ongoing longitudinal study. A reduced battery of tests is allowable if the participant is not able/willing to complete the full battery.
Who cannot join
- Any significant neurologic disease, such as Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, brain tumor, progressive supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma followed by persistent neurologic deficits or known structural brain abnormalities
- 1. Any significant neurologic disease other than suspected incipient Alzheimer's disease, such as Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, brain tumor, progressive supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma followed by persistent neurologic deficits or known structural brain abnormalities.
- 1. Any significant neurologic disease other than Alzheimer's disease, such as Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, brain tumor, progressive supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma followed by persistent neurologic deficits or known structural brain abnormalities.
- The following additional exclusion criteria apply to all diagnostic categories:
- Screening/Baseline MRI brain scan with evidence of infection, infarction, or other focal lesions or multiple lacunes or lacunes in a critical memory structure
- Subjects that have any contraindications for MRI studies, including the presence of cardiac pacemakers, or metal fragments or foreign objects in the eyes, skin or body.
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- Major depression, bipolar disorder as described in DSM-IV within the past 1 year. Psychotic features, agitation or behavioral problems within the last 3 months that could lead to difficulty complying with the protocol.
- Currently treated with medication for obsessive-compulsive disorder or attention deficit disorder.
- History of schizophrenia (DSM IV criteria).
- History of alcohol or substance abuse or dependence within the past 2 years (DSM IV criteria).
- Any significant systemic illness or unstable medical condition, which could lead to difficulty complying with the protocol.
- Clinically significant abnormalities in B12 or thyroid function tests (TFTs) that might interfere with the study. A low B12 is exclusionary, unless follow-up labs (homocysteine (HC) and methylmalonic acid (MMA)) indicate that it is not physiologically significant.
- Residence in a skilled nursing facility.
- Current use of specific psychoactive medications (e.g., certain antidepressants, neuroleptics, chronic anxiolytics or sedative hypnotics). Current use of warfarin or other anticoagulants such as dabigatran, rivaroxaban and apixaban (exclusionary for lumbar puncture).
- Current use of any other exclusionary medications
- Investigational agents are prohibited one month prior to entry and for the duration of the trial.
- Participation in clinical studies involving neuropsychological measures being collected more than one time per year.
- The following criteria are exclusionary only for the AV-1451 scanning portion of the study:
- History of risk factors for torsades de pointes (a cardiac dysrhythmia associated with sudden death) or taking medications known to prolong the QT interval. A list of restricted medications will be provided.
- Have an ECG obtained prior to the AV-1451 PET scan that in the opinion of the investigator is clinically significant with regard to the subject's participation in the study. Bazett's corrected QT (QTcB) interval must be evaluated and must not exceed 458 msec in males, or 474 msec in females.
Trial locations and contacts
59 sites in 2 countries.
59 sites in 2 countries
United States54 sites
Albany Medical College
Albany, New York, 12208
University of Michigan, Ann Arbor
Ann Arbor, Michigan, 481052967
Emory University
Atlanta, Georgia, 30322
Johns Hopkins University
Baltimore, Maryland, 212242764
Case Western Reserve University
Beachwood, Ohio, 441224312
University of Alabama, Birmingham
Birmingham, Alabama, 35294
Brigham and Women's Hospital
Boston, Massachusetts, 21155804
Boston University School of Medicine
Boston, Massachusetts, 21182307
Dent Neurologic Institute
Buffalo, New York, 142261727
Ralph H. Johnson VA Health Care System
Charleston, South Carolina, 29401
Northwestern University
Chicago, Illinois, 606113010
Rush University Medical Center
Chicago, Illinois, 606123806
Ohio State University
Columbus, Ohio, 43210
University of Texas, Southwestern MC at Dallas
Dallas, Texas, 75390
Duke University Medical Center
Durham, North Carolina, 27710
University of Kansas
Fairway, Kansas, 66205
Baylor College of Medicine
Houston, Texas, 77030
Houston Methodist
Houston, Texas, 77030
Indiana University
Indianapolis, Indiana, 46202
University of Iowa
Iowa City, Iowa, 52242
University of California, Irvine
Irvine, California, 92697
Mayo Clinic, Jacksonville
Jacksonville, Florida, 32224
University of California, San Diego
La Jolla, California, 920371707
Cleveland Clinic Lou Ruvo Center for Brain Health
Las Vegas, Nevada, 891060100
University of Kentucky
Lexington, Kentucky, 405042681
Long Beach VA Neuropsychiatric Research Program
Long Beach, California, 90822
University of Southern California
Los Angeles, California, 900335310
University of California, Los Angeles
Los Angeles, California, 90095
University of Wisconsin
Madison, Wisconsin, 537920001
Wien Center for Clinical Research
Miami Beach, Florida, 331402877
Vanderbilt University Medical Center
Nashville, Tennessee, 37212
Yale University School of Medicine
New Haven, Connecticut, 65103330
New York University Medical Center
New York, New York, 100166055
Mount Sinai School of Medicine
New York, New York, 100296552
Columbia University
New York, New York, 10032
Nathan Kline Institute for Psychiatric Research
Orangeburg, New York, 109621159
VA Palo Alto HSC / Stanford School of Medicine
Palo Alto, California, 94304
University of Pennsylvania
Philadelphia, Pennsylvania, 19104
Banner Alzheimer's Institute
Phoenix, Arizona, 85006
Barrow Neurological Institute
Phoenix, Arizona, 85013
University of Pittsburgh
Pittsburgh, Pennsylvania, 15213
Oregon Health & Science University
Portland, Oregon, 972393011
Rhode Island Hospital
Providence, Rhode Island, 02903
Butler Hospital Memory and Aging Program
Providence, Rhode Island, 02906
Mayo Clinic, Rochester
Rochester, Minnesota, 559050001
University of Rochester
Rochester, New York, 14620
University of California, San Francisco
San Francisco, California, 94158
Washington University, St. Louis
St Louis, Missouri, 631082215
Banner Sun Health Research Institute
Sun City, Arizona, 85351
University of South Florida - Health Byrd Alzheimer Institute
Tampa, Florida, 336134808
University of California, Davis
Walnut Creek, California, 945985900
Georgetown University
Washington D.C., District of Columbia, 200072145
Howard University
Washington D.C., District of Columbia, 200600001
Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157
Canada5 sites
Parkwood Institute
London, Ontario, N6C 0A7
St. Joseph's Health Center - Cognitive Neurology
London, Ontario, N6C 4R3
Jewish General Hospital Memory Clinic
Montreal, Quebec, H3T 1E2
Sunnybrook Health Sciences Centre
Toronto, Ontario, M4N 3M5
University of British Columbia, Clinic for AD & Related
Vancouver, British Columbia, V6T1Z3
About this study
Official title: Alzheimer's Disease Neuroimaging Initiative 3 (ADNI3)
Since its launch in 2004, the overarching aim of the Alzheimer's Disease Neuroimaging Initiative (ADNI) has been realized in informing the design of therapeutic trials in AD. ADNI3 continues the previously funded ADNI-1, ADNI-GO, and ADNI-2 studies that have been combined public/private collaborations between academia and industry to determine the relationships between the clinical, cognitive, imaging, genetic and biochemical biomarker characteristics of the entire spectrum of Alzheimer's disease (AD). The overall goal of the study is to continue to discover, optimize, standardize, and validate clinical trial measures and biomarkers used in AD research.
Read the detailed description
The overall goal of ADNI3 is to determine the relationships among the clinical, cognitive, imaging, genetic and biochemical biomarker characteristics of the entire spectrum of Alzheimer's disease (AD), as the pathology evolves from normal aging through very mild symptoms, to mild cognitive impairment (MCI), to dementia. ADNI3 continues the previously funded AD Neuroimaging Initiative (ADNI1, ADNI-GO, and ADNI-2), and remains a public/private collaboration between academia and industry to study biomarkers of AD. ADNI will continue to inform the neuroscience of AD, identify diagnostic and prognostic markers, identify outcome measures that can be used in clinical trials, and help develop the most effective clinical trial scenarios.
This is multi-center, a non-randomized, natural history, non-treatment study. 1,070-2,000 total participants will be enrolled across three cohorts: cognitively normal* (CN), mild cognitive impairment (MCI) and mild Alzheimer's Disease (AD) dementia. Participants between the ages of 55-90 (inclusive) will be enrolled at 59 sites in the United States and Canada. Approximately, 700 - 800 will be rollover participants from previous ADNI studies, and 370 - 1200 will be newly enrolled. Clinical/cognitive, imaging, biomarker, and genetic characteristics will be assessed across the three cohorts.
Participants will undergo longitudinal clinical and cognitive assessments, computerized cognitive batteries, biomarker and genetic tests, PET (FDG, amyloid and tau) and MRI scans and cerebral spinal fluid (CSF) collection for up to 5 years.
*currently recruiting non-Caucasian participants only for the cognitively normal cohort.
- Keywords
- amyloid, plaques, neuroimaging, biomarkers, cognition disorder, early detection, pre-dementia, dementia, Alzheimer's disease, tau
- Medical subject headings
- Cognitive Dysfunction, Alzheimer Disease, Plaque, Amyloid, Cognition Disorders, Dementia, Pick Disease of the Brain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Cognitively Normal (CN) | 135-500 newly enrolled participants with no apparent memory problems, and 295-300 cognitively normal participants followed from the ADNI2 study. Currently recruiting non-Caucasian participants only for the normal cognition group. | |
| Mild Cognitive Impairment (MCI) | 150 - 515 newly enrolled participants with mild cognitive impairment (MCI), and 275-320 MCI participants followed from the ADNI2 study. | |
| Mild Alzheimer's Disease (AD) dementia | 85 - 185 newly enrolled participants with mild Alzheimer's disease (AD) dementia, and 130 - 150 mild AD participants followed from the ADNI2 study. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Rate of change in cognition as measured by the Alzheimer's Disease Assessment Scale-Cognitive (ADAS-Cog13)
The ADAS-Cog is an in-person examiner-administered, structured scale that evaluates memory (word recall, word recognition), reasoning (following commands), language (naming, comprehension), orientation, ideational praxis (placing letter in envelope) and constructional praxis (copying geometric designs). Ratings of spoken language, language comprehension, word finding difficulty, and ability to remember test instructions are also obtained.
Measured: 5 years
Rate of change in cognition as measured by the Logical Memory Test I and II
Measured: 5 years
Rate of change in cognition as measured by the Mini-Mental State Examinations (MMSE)
The MMSE scale evaluates orientation, memory, attention, concentration, naming, repetition, comprehension, and ability to create a sentence and to copy two overlapping pentagons.
Measured: 5 years
Secondary outcomes (12)
Rate of change in cognition as measured by the Cogstate Brief Battery (CBB)
The Cogstate Brief battery (CBB) is a brief (10-15 minute) computerized cognitive battery developed by Cogstate (Cogstate Ltd. New Haven, CT, USA) that measures attention, speed of information processing, working memory and learning.
Measured: 5 years
Rate of change in cognition as measured by the American National Adult Reading Test (ANART)
The ANART estimates premorbid verbal intelligence (VIQ) in patients with dementia.
Measured: 5 years
Rate of change in cognition as measured by the Montreal Cognitive Assessment (MoCA)
The Montreal Cognitive Assessment test (MoCA) is a cognitive assessment designed to detect participants at the MCI stage of cognitive dysfunction.
Measured: 5 years
Rate of change in cognition as measured by the Rey Auditory Verbal Learning Test
The AVLT is a list-learning task, which assesses multiple cognitive parameters associated with learning and memory.
Measured: 5 years
Rate of change in cognition as measured by the Trail Making Test: A and B
Measured: 5 years
Change in tau deposition as measured by 18F-AV-1451
Measured: 5 years
Change in amyloid deposition as measured by Florbetapir
Measured: 5 years
Change in amyloid deposition as measured by Florbetaben
Measured: 5 years
Rate of conversion to MCI or dementia due to AD
Measured: 5 years
Rates of change of glucose metabolism (FDG-PET)
Measured: 5 years
Change in Cerebral Spinal Fluid (CSF) Tau Biomarkers
Measured: 5 years
Change in brain structure using magnetic resonance imaging (MRI)
Measured: 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Aug 2016 (estimated)
- Study start2 Dec 2016
- Primary completion28 May 2024
- Study completion28 May 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (7)Papers the sponsor has linked to this study.
- Other trials for Mild Cognitive Impairment (MCI)Studies of the same condition, open and under way.
- More trials run by University of Southern CaliforniaThe 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
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 1,141 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Southern California
- Sponsor type
- University, hospital or other
- Collaborators
- Northern California Institute of Research and Education, National Institute on Aging (NIA), Alzheimer's Therapeutic Research Institute
- Responsible party
- Principal investigator, Paul S. Aisen, University of Southern California
- Investigators
- Michael W. Weiner, MD, Study director, University of California, San FranciscoPaul Aisen, MD, Principal investigator, USC Alzheimer's Therapeutic Research Institute (ATRI)Ronald Peterson, MD, PHD, Principal investigator, Mayo Clinic
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02854033
- Sponsor's protocol ID
- ATRI-001
- Other IDs
- U01AG024904
- Acronym
- ADNI3
- Status last verified
- Mar 2026
- First submitted
- 27 Jul 2016
- Last updated
- 11 Mar 2026
- Results posted
- No
- Data monitoring committee
- Yes
- Individual data sharing
- Yes
Publications
Howe MD, Zide BS, Hayes K, Ross D, Barker MS, Kunicki ZJ, Rudolph J, Huey E. Symptom-Guided Blood Biomarker Testing for Alzheimer's Disease. Dement Geriatr Cogn Disord. 2026 Oct 12:1. doi: 10.1159/dem/aciag010. Online ahead of print.
PubMed 42862762Miller AA, Sharp ES, Wang S, Zhao Y, Mecca AP, van Dyck CH, O'Dell RS; Alzheimer's Disease Neuroimaging Initiative (ADNI). Self-reported hearing loss is associated with faster cognitive and functional decline but not diagnostic conversion in the ADNI cohort. Alzheimers Dement. 2024 Nov;20(11):7847-7858. doi: 10.1002/alz.14252. Epub 2024 Sep 26.
PubMed 39324520Howe MD, Caruso MR, Manoochehri M, Kunicki ZJ, Emrani S, Rudolph JL, Huey ED, Salloway SP, Oh H; Alzheimer's Disease Neuroimaging Initiative. Utility of cerebrovascular imaging biomarkers to detect cerebral amyloidosis. Alzheimers Dement. 2024 Oct;20(10):7220-7231. doi: 10.1002/alz.14207. Epub 2024 Sep 1.
PubMed 39219209Howe MD, Caruso MR, Manoochehri M, Kunicki ZJ, Emrani S, Rudolph JL, Huey ED, Salloway SP, Oh H; Alzheimer's Disease Neuroimaging Initiative. Utility of cerebrovascular imaging biomarkers to detect cerebral amyloidosis. medRxiv [Preprint]. 2024 May 28:2024.05.28.24308056. doi: 10.1101/2024.05.28.24308056.
PubMed 38853879Xu B, Ling Y, Liu L, Liu Y, Lin Y, Lyu J, Zhang Y. Potential prognostic value of CSF-targeted proteomics across the Alzheimer's disease continuum. BMC Geriatr. 2024 Jun 6;24(1):501. doi: 10.1186/s12877-024-05104-z.
PubMed 38844858Rauchmann BS, Schneider-Axmann T, Perneczky R; Alzheimer's Disease Neuroimaging Initiative (ADNI). Associations of longitudinal plasma p-tau181 and NfL with tau-PET, Abeta-PET and cognition. J Neurol Neurosurg Psychiatry. 2021 Dec;92(12):1289-1295. doi: 10.1136/jnnp-2020-325537. Epub 2021 Jun 29.
PubMed 34187867Bullich S, Roe-Vellve N, Marquie M, Landau SM, Barthel H, Villemagne VL, Sanabria A, Tartari JP, Sotolongo-Grau O, Dore V, Koglin N, Muller A, Perrotin A, Jovalekic A, De Santi S, Tarraga L, Stephens AW, Rowe CC, Sabri O, Seibyl JP, Boada M. Early detection of amyloid load using 18F-florbetaben PET. Alzheimers Res Ther. 2021 Mar 27;13(1):67. doi: 10.1186/s13195-021-00807-6.
PubMed 33773598
Study at a glance
From the registry record, last updated by the sponsor on 11 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Alzheimer's Disease Neuroimaging Initiative 3 (ADNI3)
- ClinicalTrials.gov ID
- NCT02854033
- Acronym / sponsor ID
- ADNI3 / ATRI-001
- Keywords
- amyloid, plaques, neuroimaging, biomarkers, cognition disorder, early detection, pre-dementia, dementia
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 1,141 participants (actual)
- Lead sponsor
- University of Southern CaliforniaUniversity, hospital or other
- Collaborators
- Northern California Institute of Research and Education, National Institute on Aging (NIA), Alzheimer's Therapeutic Research Institute
- Study start
- 2 Dec 2016 (actual)
- Primary completion
- 28 May 2024 (actual)
- Study completion
- 28 May 2024 (actual)
- First posted
- 3 Aug 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Since its launch in 2004, the overarching aim of the Alzheimer's Disease Neuroimaging Initiative (ADNI) has been realized in informing the design of therapeutic trials in AD. ADNI3 continues the previously funded ADNI-1, ADNI-GO, and ADNI-2 studies that have been combined public/private collaborations between academia and industry to determine the relationships between the clinical, cognitive, imaging, genetic and biochemical biomarker characteristics of the entire spectrum of Alzheimer's disease (AD). The overall goal of the study is to continue to discover, optimize, standardize, and validate clinical trial measures and biomarkers used in AD research.
Detailed description
The overall goal of ADNI3 is to determine the relationships among the clinical, cognitive, imaging, genetic and biochemical biomarker characteristics of the entire spectrum of Alzheimer's disease (AD), as the pathology evolves from normal aging through very mild symptoms, to mild cognitive impairment (MCI), to dementia. ADNI3 continues the previously funded AD Neuroimaging Initiative (ADNI1, ADNI-GO, and ADNI-2), and remains a public/private collaboration between academia and industry to study biomarkers of AD. ADNI will continue to inform the neuroscience of AD, identify diagnostic and prognostic markers, identify outcome measures that can be used in clinical trials, and help develop the most effective clinical trial scenarios.
This is multi-center, a non-randomized, natural history, non-treatment study. 1,070-2,000 total participants will be enrolled across three cohorts: cognitively normal* (CN), mild cognitive impairment (MCI) and mild Alzheimer's Disease (AD) dementia. Participants between the ages of 55-90 (inclusive) will be enrolled at 59 sites in the United States and Canada. Approximately, 700 - 800 will be rollover participants from previous ADNI studies, and 370 - 1200 will be newly enrolled. Clinical/cognitive, imaging, biomarker, and genetic characteristics will be assessed across the three cohorts.
Participants will undergo longitudinal clinical and cognitive assessments, computerized cognitive batteries, biomarker and genetic tests, PET (FDG, amyloid and tau) and MRI scans and cerebral spinal fluid (CSF) collection for up to 5 years.
*currently recruiting non-Caucasian participants only for the cognitively normal cohort.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Cognitively Normal (CN) | – | –135-500 newly enrolled participants with no apparent memory problems, and 295-300 cognitively normal participants followed from the ADNI2 study. Currently recruiting non-Caucasian participants only for the normal cognition group. |
| Mild Cognitive Impairment (MCI) | – | –150 - 515 newly enrolled participants with mild cognitive impairment (MCI), and 275-320 MCI participants followed from the ADNI2 study. |
| Mild Alzheimer's Disease (AD) dementia | – | –85 - 185 newly enrolled participants with mild Alzheimer's disease (AD) dementia, and 130 - 150 mild AD participants followed from the ADNI2 study. |
Who may qualify
- Ages
- 55 to 90 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Cognitively normal (CN), mild cognitive impairment (MCI), and mild AD dementia participants.
Key inclusion criteria (57 listed)
- Participant with or without subjective memory complaints, verified by a study partner, beyond what one would expect for age
- Normal memory function documented by scoring above education adjusted cutoffs on the Logical Memory II subscale (Delayed Paragraph Recall, Paragraph A only) from the Wechsler Memory Scale -Revised (the maximum score is 25):
- Mini-Mental State Exam score between 24 and 30 inclusive (Exceptions may be made for participants with less than 8 years of education at the discretion of the Project Director)
- Clinical Dementia Rating = 0. Memory Box score must be 0
- Cognitively normal, based on an absence of significant impairment in cognitive functions or activities of daily living
Key exclusion criteria (20 listed)
- Any significant neurologic disease, such as Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, brain tumor, progressive supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma followed by persistent neurologic deficits or known structural brain abnormalities
- 1. Any significant neurologic disease other than suspected incipient Alzheimer's disease, such as Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, brain tumor, progressive supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma followed by persistent neurologic deficits or known structural brain abnormalities.
- 1. Any significant neurologic disease other than Alzheimer's disease, such as Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, brain tumor, progressive supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma followed by persistent neurologic deficits or known structural brain abnormalities.
- Screening/Baseline MRI brain scan with evidence of infection, infarction, or other focal lesions or multiple lacunes or lacunes in a critical memory structure
- Subjects that have any contraindications for MRI studies, including the presence of cardiac pacemakers, or metal fragments or foreign objects in the eyes, skin or body.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Rate of change in cognition as measured by the Alzheimer's Disease Assessment Scale-Cognitive (ADAS-Cog13)
Time frame: 5 years
The ADAS-Cog is an in-person examiner-administered, structured scale that evaluates memory (word recall, word recognition), reasoning (following commands), language (naming, comprehension), orientation, ideational praxis (placing letter in envelope) and constructional praxis (copying geometric designs). Ratings of spoken language, language comprehension, word finding difficulty, and ability to remember test instructions are also obtained.
Rate of change in cognition as measured by the Logical Memory Test I and II
Time frame: 5 years
Rate of change in cognition as measured by the Mini-Mental State Examinations (MMSE)
Time frame: 5 years
The MMSE scale evaluates orientation, memory, attention, concentration, naming, repetition, comprehension, and ability to create a sentence and to copy two overlapping pentagons.
12 secondary outcomes
Rate of change in cognition as measured by the Cogstate Brief Battery (CBB)
Time frame: 5 years
Rate of change in cognition as measured by the American National Adult Reading Test (ANART)
Time frame: 5 years
Rate of change in cognition as measured by the Montreal Cognitive Assessment (MoCA)
Time frame: 5 years
Rate of change in cognition as measured by the Rey Auditory Verbal Learning Test
Time frame: 5 years
Rate of change in cognition as measured by the Trail Making Test: A and B
Time frame: 5 years
Change in tau deposition as measured by 18F-AV-1451
Time frame: 5 years
Change in amyloid deposition as measured by Florbetapir
Time frame: 5 years
Change in amyloid deposition as measured by Florbetaben
Time frame: 5 years
Rate of conversion to MCI or dementia due to AD
Time frame: 5 years
Rates of change of glucose metabolism (FDG-PET)
Time frame: 5 years
Change in Cerebral Spinal Fluid (CSF) Tau Biomarkers
Time frame: 5 years
Change in brain structure using magnetic resonance imaging (MRI)
Time frame: 5 years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Mar 2026.
- Derived from this study: PubMed 42862762Howe MD, Zide BS, Hayes K, Ross D, Barker MS, Kunicki ZJ, Rudolph J, Huey E. Symptom-Guided Blood Biomarker Testing for Alzheimer's Disease. Dement Geriatr Cogn Disord. 2026 Oct 12:1. doi: 10.1159/dem/aciag010. Online ahead of print.
- Derived from this study: PubMed 39324520Miller AA, Sharp ES, Wang S, Zhao Y, Mecca AP, van Dyck CH, O'Dell RS; Alzheimer's Disease Neuroimaging Initiative (ADNI). Self-reported hearing loss is associated with faster cognitive and functional decline but not diagnostic conversion in the ADNI cohort. Alzheimers Dement. 2024 Nov;20(11):7847-7858. doi: 10.1002/alz.14252. Epub 2024 Sep 26.
- Derived from this study: PubMed 39219209Howe MD, Caruso MR, Manoochehri M, Kunicki ZJ, Emrani S, Rudolph JL, Huey ED, Salloway SP, Oh H; Alzheimer's Disease Neuroimaging Initiative. Utility of cerebrovascular imaging biomarkers to detect cerebral amyloidosis. Alzheimers Dement. 2024 Oct;20(10):7220-7231. doi: 10.1002/alz.14207. Epub 2024 Sep 1.
- Derived from this study: PubMed 38853879Howe MD, Caruso MR, Manoochehri M, Kunicki ZJ, Emrani S, Rudolph JL, Huey ED, Salloway SP, Oh H; Alzheimer's Disease Neuroimaging Initiative. Utility of cerebrovascular imaging biomarkers to detect cerebral amyloidosis. medRxiv [Preprint]. 2024 May 28:2024.05.28.24308056. doi: 10.1101/2024.05.28.24308056.
- Derived from this study: PubMed 38844858Xu B, Ling Y, Liu L, Liu Y, Lin Y, Lyu J, Zhang Y. Potential prognostic value of CSF-targeted proteomics across the Alzheimer's disease continuum. BMC Geriatr. 2024 Jun 6;24(1):501. doi: 10.1186/s12877-024-05104-z.
- Derived from this study: PubMed 34187867Rauchmann BS, Schneider-Axmann T, Perneczky R; Alzheimer's Disease Neuroimaging Initiative (ADNI). Associations of longitudinal plasma p-tau181 and NfL with tau-PET, Abeta-PET and cognition. J Neurol Neurosurg Psychiatry. 2021 Dec;92(12):1289-1295. doi: 10.1136/jnnp-2020-325537. Epub 2021 Jun 29.
- Derived from this study: PubMed 33773598Bullich S, Roe-Vellve N, Marquie M, Landau SM, Barthel H, Villemagne VL, Sanabria A, Tartari JP, Sotolongo-Grau O, Dore V, Koglin N, Muller A, Perrotin A, Jovalekic A, De Santi S, Tarraga L, Stephens AW, Rowe CC, Sabri O, Seibyl JP, Boada M. Early detection of amyloid load using 18F-florbetaben PET. Alzheimers Res Ther. 2021 Mar 27;13(1):67. doi: 10.1186/s13195-021-00807-6.
- Alzheimer's Disease Neuroimaging InitiativeLink provided by the sponsor.
- Laboratory of Neuro Imaging (LONI)Link provided by the sponsor.
- Alzheimer's Therapeutic Research InstituteLink provided by the sponsor.
- List of Alzheimer's Disease Neuroimaging Initiative PublicationsLink provided by the sponsor.
- Brain Health Registry (BHR)Link provided by the sponsor.
- Individual participant dataSharing planned: Yes
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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.
Michael W. Weiner, MD study director
University of California, San Francisco
Paul Aisen, MD principal investigator
USC Alzheimer's Therapeutic Research Institute (ATRI)
Ronald Peterson, MD, PHD principal investigator
Mayo Clinic
59 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Mild Cognitive Impairment (MCI) and Alzheimer's Disease (AD), run by University of Southern California at 59 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 57 inclusion and 20 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 11 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 59 sites in United States, Canada. 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.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Rate of change in cognition as measured by the Alzheimer's Disease Assessment Scale-Cognitive (ADAS-Cog13) (time frame: 5 years). The study lists 3 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 NCT02854033, which also lists 7 linked publications.
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 11 Mar 2026.