This project intends to address the gaps in Alzheimer's disease (AD) and precision medicine (PM) research in American Indian and Alaska Native (AI/AN) populations by comparing written and video-based materials for recruitment into AD and PM research, and by creating an AD-PM registry of AI/AN individuals who are willing to be contacted for future research opportunities.
This project intends to address the gaps in Alzheimer's disease (AD) and precision medicine (PM) research in American Indian and Alaska Native (AI/AN) populations by comparing written and video-based materials for recruitment into AD and PM research, and by creating an AD-PM registry of AI/AN individuals who are willing to be contacted for future research opportunities. The project will be a 3-arm RCT with a sample size of 501 AI/AN adults, aged 40 years and older. The RCT enables us to compare outcomes between groups to determine the effect of a tailored brochure and video compared to non-tailored, text-based recruitment materials, and assemble a large registry of AI/ANs with biospecimens and data from medical records for future AD research. The AI/AN population is growing as a proportion of the total US population, and gains in life expectancy mean that the number of Native elders at risk of AD is rapidly increasing. Therefore, there is a need for research in this understudied group. The study procedures are expected to take participants approximately 2-3 hours to finish. Participants will be asked to complete a pre-intervention self-report questionnaire and have their height, weight, and neck circumference measured. Next, they will be randomized to one of the 3-treatment arms. Participants allocated to the control condition will receive the standard brochure on AD and PM, with standard text-based content not specifically tailored for AI/ANs. Participants randomized to the intervention will either view a short culturally tailored video (5 minutes) or read a culturally tailored educational brochure. All brochures and video will contain the same base information on AD and PM. Participants will have as much time as they need to review the material. After each participant has finished reading the relevant brochure or viewing the video, they will be asked to complete post-intervention data collection that includes: 1) an ADRD knowledge questionnaire and 2) enrollment in the AD-PM Registry. If the participant chooses not to enroll in the AD-PM Registry, their participation in the study is complete. If the participant agrees to enroll in the registry, they will be asked to complete 3) the AD-PM Module, 4) biospecimen donation (blood, saliva, and urine samples), and 5) permission to access medical records. Participants who complete the AD-PM module and provide biospecimens but decline consent to access medical records will still be added to the registry.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE
Enrollment
523
Culturally-tailored Alzheimer's Disease and precision medicine educational brochure.
Culturally-tailored Alzheimer's Disease and precision medicine educational video.
Missouri Breaks Industries Research, Inc.
Rapid City, South Dakota, United States
AD-PM Module Completion
Completion of the AD-PM Module will be assessed by binary (yes, no) indicators of 1) providing consent for the Module; and 2) answering a question about enrolling in the AD-PM cohort and by a variable summarizing the total number of missing responses for the AD-PM module questions.
Time frame: Baseline
Cohort Enrollment Questionnaire
Enrollment in the AD-PM Cohort will be assessed by binary (yes, no) indicators of agreeing to 1) join the Cohort, and 2) be contacted for participation in future studies.
Time frame: Baseline
Willingness to Participate in Research Questionnaire
Willingness to participate will be rated using a 4-point Likert scale (1=definitely would not, 2=probably would not; 3=probably would; 4=definitely would) after viewing 4 vignettes portraying hypothetical future projects related to Alzheimer's Disease, dementia, and Precision Medicine. Ranges for each vignette are 1 to 4 with higher scores indicating greater willingness to participate in research.
Time frame: Baseline
Alzheimer's Disease (AD) Knowledge Scale
30 true/false items on risk factors, assessment, diagnosis, symptoms, life impact, caregiving, treatment, and management. Range is 0 - 30 with higher scores indicating greater AD knowledge.
Time frame: Baseline
Attitudes about Precision Medicine self-report survey
Investigators will adapt a 44-item survey created by the National Institutes of Health to measure attitudes about the "All of Us" Alzheimer's Disease/Precision Medicine (AD/PM) Research Program to approximately 20 items specifically related to attitudes about PM rather than on All of Us more broadly. Items will be multiple choice (Definitely yes, Probably yes, Probably no, Definitely no) and binary (agree, disagree; yes, no). Ranges are not yet established as the survey is under development. Higher scores will indicate more positive attitudes about PM.
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Time frame: Baseline
Self-Administered Gerocognitive Exam (SAGE)
To measure baseline cognitive function, scores from SAGE ranging from normal to mild cognitive impairment. Test scores range from 22 (normal) to 15 (mild cognitive impairment), with a score \< 14 indicative of dementia and a score of ≥ 17 considered normal.
Time frame: Baseline
Orthogonal Cultural Identification Scale
Cultural identity will be assessed from ratings of the degree to which participants identify with Native and White ways of life in family and community interactions. Items range from 1=not at all, 2=not much, 3=some, to 4=a lot with higher scores indicating higher cultural identification with the culture described.
Time frame: Baseline