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Korea Alzheimer's Disease Neuroimaging Initiative (K-ADNI)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01979419
Recruitment Status : Active, not recruiting
First Posted : November 8, 2013
Last Update Posted : March 8, 2019
Information provided by (Responsible Party):
Seong Yoon Kim, MD, PhD, Korean Alzheimers' Disease Neuroimaing Intitiative

Brief Summary:


-Establish a registry for Alzheimer's disease (AD) and subcortical ischemic vascular dementia (SIVD)


-This is a non-randomized, natural history, observational, registry study.


- Five hundred subjects will be enrolled at each clinical site (50 NC, 200 with MCI, 50 with AD, 100 with vMCI, and 100 with SIVD)


  • Newly enrolled subjects will be between 50-80 (inclusive) years of age.
  • 1) Cognitively Normal Subjects
  • 2) MCI subjects
  • 3) AD subjects
  • 4) vMCI or SIVD


  • Recruited subjects will have clinical/cognitive assessments, biomarker and genetic sample collection, and imaging.
  • Subjects will be followed up for 36 months from the baseline visit. All assessments are to be performed every year from baseline(0, 12, 24, 36 months), except; 1) FDG-PET and amyloid-PET will be performed every two years, i.e., on baseline and at 24 month visit. 2) CSF collection will also be performed on baseline and at 24 months visit. 3) Clinical/cognitive assessment and MRI evaluation will additionally be done at 6 months from baseline to determine short term change.


  • Group differences for each clinical, cognitive, biochemical, and imaging measurement.
  • Rate of conversion or change of disease severity will be evaluated among all groups
  • Correlations among biomarkers and biomarker changes

Condition or disease
Mild Cognitive Impairment Alzheimer's Disease Subcortical Vascular Dementia

Detailed Description:

The major goals of K-ADNI are to:

  1. Establish a registry for Alzheimer's disease (AD) and subcortical ischemic vascular dementia (SIVD)

    • Collect longitudinal clinical, imaging, genetic, and biochemical biomarker data for clinical and neuroscience studies on 500 subjects in five diagnostic categories: cognitively normal control (NC), mild cognitive impairment (MCI), mild AD, vascular MCI (vMCI), and SIVD.
    • The following measurements known as representative parameters of dementia progress will be included. 1) clinical characteristics, 2) neuropsychological test, 3) structural and functional magnetic resonance image (MRI), 4) Fludeoxyglucose (FDG)-positron emission tomography (PET), 5) amyloid PET (18F-flutemetamol), 6) cerebrospinal fluid (CSF) and blood sample, 7) genetic analysis.
  2. Determination of factors that are crucial in the aggravation or deterrence of progress of dementia syndrome, so that these factors can be used as predictors and outcome measures of AD and SIVD

    • Determine the relationships among clinical, imaging, genetic, and biochemical biomarker characteristics of the entire spectrum of AD, as the pathology evolves from normal aging through very mild symptoms, to MCI, and finally to dementia.
    • Also, determine the relationship among clinical, imaging, genetic, and biochemical biomarker characteristics of the vascular MCI (vMCI) and SIVD, which is an important sub-population of dementia syndrome especially in Asian population.
  3. Identification of surrogate markers for new drug development in patients with AD and SIVD

    - Identify prognostic markers of AD and SIVD, identify outcome measures that can be used in clinical trials, and help develop the most effective clinical trial scenarios for new drugs.

  4. Development of the standard model for acquiring multi-site neuroimaging study data - Develop improved methods which will lead to uniform standards for acquiring longitudinal multi-site clinical, MRI, PET, and other biological markers (blood, CSF, gene) data on patients with AD, MCI, vMCI, SIVD, and elderly controls.

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Study Type : Observational [Patient Registry]
Estimated Enrollment : 500 participants
Observational Model: Case-Control
Time Perspective: Prospective
Target Follow-Up Duration: 36 Months
Official Title: Korea Alzheimer's Disease Neuroimaging Initiative
Study Start Date : November 2012
Estimated Primary Completion Date : October 2020
Estimated Study Completion Date : October 2020

cognitively normal
MRI scans, PET scans, lumbar puncture
mild cognitive impairment
MRI scans, PET scans, lumbar puncture
Alzheimer's Disease
MRI scans, PET scans, lumbar puncture
vascular MCI
MRI scans, PET scans, lumbar puncture
subcortical ischemic vascular dementia
MRI scans, PET scans, lumbar puncture

Primary Outcome Measures :
  1. Rate of dementia conversion or disease severity worsening, evaluated by neuropsychological, MRI, PET, biomarker indices. [ Time Frame: 0 Months (Baseline), 6 Mos, 12 Mos, 24 Mos, 36 Mos ]
    - The rate of decline as measured by clinical dementia rating (CDR) Sum of Boxes

Secondary Outcome Measures :
  1. Change from baseline in cognitive, neuroimaging, and biomarker assessments [ Time Frame: 0 Months (baseline), 6 Mos, 12 Mos, 24 Mos, 36 Mos ]
    • The rate of decline as measured by cognitive tests, Activities of Daily Living
    • The rate of volume change of the whole brain, hippocampus, and other structural MRI measures
    • Rates of change of glucose metabolism (FDG-PET)
    • Extent of amyloid deposition as measured by 18F-flutemetamol
    • Correlations among biomarkers and biomarker changes
    • Group differences for each imaging and biomarker measurement

Biospecimen Retention:   Samples With DNA
Blood, Serum, CSF

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   50 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Community Sample

Inclusion Criteria:

  1. Cognitively Normal Subjects

    • Mini-Mental State Examination (MMSE) scores between 24-30 (inclusive)
    • Clinical Dementia Rating (CDR)=0
    • non-depressed (Geriatric Depression Scale scores less than 4)
    • no evidence of cognitive impairment
  2. MCI subjects

    • MMSE scores between 24-30 (inclusive)
    • a subjective memory concern reported by subject, informant, or clinician
    • objective memory loss measured by age and education year adjusted scores on logical memory sub-test (below -1.5 SD)
    • CDR=0.5
    • preserved activities of daily living, and an absence of dementia.
  3. AD subjects

    • MMSE scores between 20-26 (inclusive)
    • CDR= 0.5 or 1.0.
    • meets National Institute of Neurological and Communicative Disorders and Stroke / Alzheimer's Disease and Related Disorders Associations (NINCDS/ADRDA) criteria for probable AD
  4. vMCI or SIVD

    • For diagnosis of vMCI or SIVD, it is necessary to meet the above clinical/cognitive test scores of MCI or AD.
    • Presence of vascularity are determined by; 1) more than 2 vascular risk factors in recent 5 years (hypertension, diabetes, stroke, dyslipidemia, other cardiovascular disease, obesity, lack of exercise, and smoking) AND 2) more than 1 evidence of vascular neurological symptom, sign, or history AND 3) neuroimaging evidence of white matter hyperintensity, which is rated moderate or severe on MR T2-weighted image(T2WI) or FLAIR images.

Exclusion Criteria:

  • Screening/baseline MRI scan with evidence of infection, infarction, or other focal lesions; Participants with multiple lacunes or lacunes in a critical memory structure are excluded
  • Presence of pacemakers, aneurysm clips, artificial heart valves, ear implants, metal fragments or foreign objects in the eyes, skin or body
  • Major depression, bipolar disorder as described in Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) within the past 1 year
  • Currently treated with medication for obsessive-compulsive disorder or attention deficit disorder
  • History of schizophrenia
  • History of alcohol or substance abuse or dependence within the past 2 years
  • Any significant systemic illness or unstable medical condition which could lead to difficulty complying with the protocol
  • 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 defaults or known structural brain abnormalities.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01979419

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Korea, Republic of
Seong Yoon Kim
Seoul, Korea, Republic of, 120752
Sponsors and Collaborators
Korean Alzheimers' Disease Neuroimaing Intitiative
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Principal Investigator: Seong Yoon Kim, MD, PhD Asan Medical Center, Univ. of Ulsan, Medical College
Additional Information:

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Responsible Party: Seong Yoon Kim, MD, PhD, Professor, Department of Psychiatry, Asan Medical Center, Korean Alzheimers' Disease Neuroimaing Intitiative Identifier: NCT01979419    
Other Study ID Numbers: HI12C0713
First Posted: November 8, 2013    Key Record Dates
Last Update Posted: March 8, 2019
Last Verified: March 2019
Keywords provided by Seong Yoon Kim, MD, PhD, Korean Alzheimers' Disease Neuroimaing Intitiative:
mild cognitive impairment
Alzheimer's disease
subcortical Vascular Dementia
cognition disorder
early detection
vascular MCI
Additional relevant MeSH terms:
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Alzheimer Disease
Dementia, Vascular
Cognitive Dysfunction
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Neurodegenerative Diseases
Neurocognitive Disorders
Mental Disorders
Cognition Disorders
Cerebrovascular Disorders
Intracranial Arteriosclerosis
Intracranial Arterial Diseases
Arterial Occlusive Diseases
Vascular Diseases
Cardiovascular Diseases