Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Class |
|---|---|
| Health Systems Research Institute,Thailand | OTHER_GOV |
Not provided
Not provided
Not provided
Not provided
This is a prospective cohort study with the main purpose of predicting progression neurocognitive disorders in Thai population. The main predictor variables to be evaluated are plasma phosphorylated tau (p-tau) level and cognitive test scores, which will be combined using statistical/computational modeling. Additionally, it seeks to evaluate biomarkers for diagnosing disease pathologies, understand their correlation with clinical outcomes, and explore the socioeconomic impact of neurocognitive disorders. The study invites both participants for biospecimen collection, structured interviews, and cognitive examinations and schedules follow-up visits annually or biennially.
The INDE study is a prospective cohort aimed at investigating the natural history and epidemiology of neurocognitive disorders in Thailand. Its primary objective is to develop a predictive model that combines biomarkers (eg. plasma phosphorylated tau) and cognitive performance to accurately predict cognitive decline. Additional objectives include cross-sectional evaluation of various biomarkers for diagnosing disease pathologies, identifying correlations between biomarkers and clinical outcomes, understanding the impact of receiving a biological diagnosis, describing the epidemiology of neurocognitive disorders including risk factors and social determinants of health (SDH), exploring the socioeconomic consequences of these disorders, and establishing a biorepository for future research. The study invites both healthy volunteers and patients referred from memory clinics to participate in a 4-hour visit during which various research procedures are conducted: collection of biospecimens (blood, saliva, sweat), structured interviews covering symptoms, comorbidities, risk factors, SDH, and quality of life, as well as a comprehensive cognitive examination. Participants are scheduled for annual or biennial follow-up visits based on their cognitive status. For those consenting to specific disclosures, investigators provide some biomarker test results and offer post-test counseling based on available research literature. Depending on current funding, a subset of participants meeting additional criteria may also undergo evaluation using appropriate neuroimaging or cerebrospinal fluid (CSF) biomarkers.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Cognitively healthy | This cohort includes participants with or without subjective complaints whose results of cognitive examination are normal. Participants will undergo clinical, epidemiological, and cognitive assessments, as well as biospecimen collection every two years, over an 8-year follow-up period. |
| |
| Mild cognitive impairment | This cohort includes participants whose results of cognitive examination are abnormal but have not met the criteria for dementia. Participants will undergo annual clinical, epidemiological, and cognitive assessments, as well as biospecimen collection, for a duration of six years. |
| |
| Late onset dementia | This cohort includes participants with dementia whose symptoms onset after the age of 65. Participants will undergo annual clinical, epidemiological, and cognitive assessments, as well as biospecimen collection, for a duration of two years. |
| |
| Early onset dementia | This cohort includes participants with dementia whose symptoms onset before the age of 65. Participants will undergo annual clinical, epidemiological, and cognitive assessments, as well as biospecimen collection, for a duration of six years. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Plasma tau phosphorylated at Thr217 | Diagnostic Test | Plasma concentration of tau protein phosphorylated at Thr217 as measured on the Meso Scale Discovery, single molecule array (Simoa) or the in-house mass spectrometry platform. |
| Measure | Description | Time Frame |
|---|---|---|
| Progression to dementia | Fulfilling the criteria for dementia according to the National Institute on Aging and the Alzheimer's Association (NIA-AA) 2018 criteria or major neurocognitive disorder (according to DSM-5) as evaluated by neurologist with special interests in neurocognitive disorders. If such designation is not available, reaching a global CDR score of 1 will be used as a substitute. This outcome only applies to cognitively healthy and mild cognitive impairment cohort. | At 2, 4, 6 and 8 years |
| Changes in Sum of Boxes of the Clinical Dementia Rating Scale | Administered by a certified psychologist in accordance with Morris, J.C. (1993). Minimum value: 0 Maximum value: 18 Higher scores mean a worse outcome. | At 2, 4, 6 and 8 years |
| Measure | Description | Time Frame |
|---|---|---|
| Changes in the Montreal Cognitive Assessment | Administered by a certified psychologist. Minimum value: 0 Maximum value: 30 Higher scores mean a better outcome. | At 2, 4, 6 and 8 years |
| Changes in the Montreal Cognitive Assessment - Memory Index Score |
| Measure | Description | Time Frame |
|---|---|---|
| Quality of life (WHOQOL-BREF) | Quality of life as measured by the Thai version of the WHOQOL-BREF questionnaire. The scales of 0-100 were subclassified for each QOL domain (ie. physical, psychological, social and environmental). | within 14 days of baseline measurement |
| Quality of life (EQ-5D-5L) |
Cognitively Healthy Individuals
INCLUSION CRITERIA
EXCLUSION CRITERIA
Mild Cognitive Impairment
INCLUSION CRITERIA
EXCLUSION CRITERIA
Late Onset Dementia
INCLUSION CRITERIA
EXCLUSION CRITERIA
Early Onset Dementia
INCLUSION CRITERIA
EXCLUSION CRITERIA
Not provided
Not provided
Not provided
The target population of this study comprises individuals with a risk of cognitive decline in Thailand categorized by their cognitive status.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Poosanu Thanapornsangsuth, M.D. | Contact | +66 (0)2 2564000 | 3561 | poosanu.t@chula.ac.th |
| Thanakit Pongpitakmetha, M.D. | Contact | thanakit.p@chula.ac.th |
| Name | Affiliation | Role |
|---|---|---|
| Thiravat Hemachudha, M.D. | Chulalongkorn University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| King Chulalongkorn Memorial Hospital | Recruiting | Pathum Wan | Bangkok | 10330 | Thailand |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 27323247 | Background | Cho H, Choi JY, Hwang MS, Kim YJ, Lee HM, Lee HS, Lee JH, Ryu YH, Lee MS, Lyoo CH. In vivo cortical spreading pattern of tau and amyloid in the Alzheimer disease spectrum. Ann Neurol. 2016 Aug;80(2):247-58. doi: 10.1002/ana.24711. Epub 2016 Jul 8. | |
| 8232972 | Background | Morris JC. The Clinical Dementia Rating (CDR): current version and scoring rules. Neurology. 1993 Nov;43(11):2412-4. doi: 10.1212/wnl.43.11.2412-a. No abstract available. |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D003704 | Dementia |
| D060825 | Cognitive Dysfunction |
| D000544 | Alzheimer Disease |
| ID | Term |
|---|---|
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
| D019965 | Neurocognitive Disorders |
Not provided
Not provided
| ID | Term |
|---|---|
| D016236 | Genes, fms |
| ID | Term |
|---|---|
| D011519 | Proto-Oncogenes |
| D009857 | Oncogenes |
| D052138 | Genes, Neoplasm |
| D005796 | Genes |
| D040481 |
Not provided
Not provided
Not provided
Not provided
Not provided
Ethylenediaminetetraacetic acid (EDTA) plasma and buffy coat, EDTA whole blood, serum, saliva
|
| Neurocognitive examination | Other | Traditional (paper and pencil) neurocognitive/neuropsychiatric examination performed by certified psychologists. This includes: Mini Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Clinical Dementia Rating (CDR), Wechsler Memory Scale - Fourth Edition (WMS-IV), Neuropsychiatric Inventory - Questionnaire (NPI-Q), Thai Geriatric Depression Scale (TGDS), General Anxiety Disorder - 7 (GAD-7), The Barthel activities of daily living (ADL) Index, Chula ADL Index. |
|
Administered by a certified psychologist. Minimum value: 0 Maximum value: 15 Higher scores mean a better outcome.
| At 2, 4, 6 and 8 years |
| Changes in the Mini Mental State Examination | Administered by a certified psychologist. Minimum value: 0 Maximum value: 30 Higher scores mean a better outcome. | At 2, 4, 6 and 8 years |
| Changes in the Wechsler Memory Scale - Fourth Edition (WMS-IV) Visual Reproduction Scaled Score | Administered by a certified psychologist. Minimum value: 1 Maximum value: 19 Higher scores mean a better outcome. | At 2, 4, 6 and 8 years |
| Changes in the Wechsler Memory Scale - Fourth Edition (WMS-IV) Logical Memory Scaled Score | Administered by a certified psychologist. Minimum value: 1 Maximum value: 19 Higher scores mean a better outcome. | At 2, 4, 6 and 8 years |
| Changes in the Wechsler Memory Scale - Fourth Edition (WMS-IV) Verbal Paired Associates Scaled Score | Administered by a certified psychologist. Minimum value: 1 Maximum value: 19 Higher scores mean a better outcome. | At 2, 4, 6 and 8 years |
| Biological diagnosis of Alzheimer's disease | Receiving the diagnosis of Alzheimer's disease based on the abnormality of any pathology-specific biomarkers that fulfills the current NIA-AA criteria. These biomarkers include, but not limited to, amyloid positron emission tomography (PET) (eg. [18 F]-Florbetaben PET), tau-PET (eg. [18F]PI-2620 PET), or CSF levels of core Alzheimer's disease biomarkers. | within 6 months of baseline measurement |
| Biological staging of Alzheimer's disease | Staging of Alzheimer's disease based on the abnormality of pathology-specific biomarkers according to the current NIA-AA criteria. | within 6 months of baseline measurement |
| Quantitative amyloid PET uptake. | Amyloid PET uptake tracer uptake quantified in Centiloids. | within 6 months of baseline measurement |
| Quantitative tau PET uptake in various cortical regions. | Cortical tau-PET uptake measured using mean standardized uptake value ratios of referenced against inferior cerebellar cortex. The pre-specified regions of interest are analogous with Braak staging (as suggested by Cho, H. (2016).): Stage I-II, entorhinal cortex; Stage III, parahippocampal and fusiform cortices, and amygdala; Stage IV, inferior and middle temporal cortices; Stage V, inferior parietal, posterior cingulate, lingual, orbitofrontal, insular, supramarginal, lateral occipital, superior temporal, precuneus, superior parietal, superior, middle, and inferior frontal, and anterior cingulate cortices; Stage VI, medial occipital, precentral, paracentral, and postcentral cortices. | within 6 months of baseline measurement |
| Future diagnosis of Alzheimer's disease dementia. | All of the following:
| At 2, 4, 6 and 8 years |
Quality of life as measured by the Thai version of the EQ-5D-5L questionnaire. The raw scores were transformed to utility scores for Thai population as previously suggested (Pattanaphesaj J., 2018). |
| within 14 days of baseline measurement |
| Number of modifiable risk factors | Count data of 0-12. Number of risk factors of the following 12 modifiable risk factors still present in a participant.
| Three months after disclosing the biomarker results. |
| 29653606 | Background | Jack CR Jr, Bennett DA, Blennow K, Carrillo MC, Dunn B, Haeberlein SB, Holtzman DM, Jagust W, Jessen F, Karlawish J, Liu E, Molinuevo JL, Montine T, Phelps C, Rankin KP, Rowe CC, Scheltens P, Siemers E, Snyder HM, Sperling R; Contributors. NIA-AA Research Framework: Toward a biological definition of Alzheimer's disease. Alzheimers Dement. 2018 Apr;14(4):535-562. doi: 10.1016/j.jalz.2018.02.018. |
| Background | American Psychiatric Association. Neurocognitive disorders. In Diagnostic and statistical manual of mental disorders (5th ed.). 2013. |
| 29958008 | Background | Pattanaphesaj J, Thavorncharoensap M, Ramos-Goni JM, Tongsiri S, Ingsrisawang L, Teerawattananon Y. The EQ-5D-5L Valuation study in Thailand. Expert Rev Pharmacoecon Outcomes Res. 2018 Oct;18(5):551-558. doi: 10.1080/14737167.2018.1494574. Epub 2018 Jul 6. |
| D001523 | Mental Disorders |
| D003072 | Cognition Disorders |
| D024801 | Tauopathies |
| D019636 | Neurodegenerative Diseases |
| Genome Components |
| D016678 | Genome |
| D040342 | Genetic Structures |
| D055614 | Genetic Phenomena |