DementiaBASIC-CNCT03403257
Brain Attack Surveillance in Corpus Christi--Cognitive (BASIC-Cognitive)
An observational study of Dementia and Dementia Alzheimers, run by University of Michigan at 1 site in United States.
Trial summary
The Mexican American population in the U.S. is rapidly growing and aging. This project seeks to determine the prevalence and outcomes of cognitive impairment and dementia in Mexican Americans. Read more about this study
- Who is it for?
- Ages 65 years and older
- Conditions the study is for
- Dementia, Dementia Alzheimers, Dementia, Vascular
- How many people
- 634 participants
- Where
- 1 siteUnited States
- Study dates
- 11 Apr 2018to 30 Apr 2026
- 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 65 years and older
- All sexes
- No healthy volunteers
- Older adult
Study population: Residents of Nueces County, Texas
Who may be able to join
- 1.65 years of age or older 2. MoCA < 26 3. Nueces County resident at least 6 months a year 4. English or Spanish speaking 5. Community dwelling or nursing home
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
United States1 site
Corpus Christi Nueces County Health District
Corpus Christi, Texas, 78416
About this study
The Mexican American population in the U.S. is rapidly growing and aging. This project seeks to determine the prevalence and outcomes of cognitive impairment and dementia in Mexican Americans. It also seeks solutions to help patients with cognitive impairment and dementia and their caregivers get the resources they need.
Read the detailed description
Hispanic/Latinos will comprise more than 30% of the U.S. population by mid-century, and Mexican Americans account for the largest share of this growing segment of society. This proposal aims to use door-to-door surveillance in Nueces County, Texas, a non-immigrant, bi-ethnic community, to determine the prevalence and trajectory over time of cognitive impairment and dementia in Mexican Americans and non Hispanic whites. The study will elucidate the mechanisms that explain the hypothesized ethnic disparity in Alzheimer's disease and Alzheimer-related dementias by evaluating the roles of vascular disease risk factors, educational attainment and socio-economic status among others. This research will also delve deeply into the differences in informal caregiving for Mexican American and non Hispanic whites with cognitive impairment and dementia. Caregiver burden and mental and physical health of caregivers will be examined toward efforts to develop interventions that build resilience in caregivers. A novel ability of this population-based study is to examine community resources for both patients and caregivers, and how these provisions differ by ethnicity. Using a rigorous mixed methods approach the study will identify the gap between available resources and needs for those with cognitive impairment and dementia. In this way we will be well positioned to propose ethnic-specific testable interventions that promote mental and physical health for those with cognitive impairment and dementia, as well as for those family members who provide the care. This research will therefore lead to improved well-being, autonomy and outcomes among those with cognitive impairment and dementia and their caregivers. The investigative team members have conducted research in this community for 20 years and are experts in Mexican American culture and health, cognitive impairment and dementia, epidemiologic methods, community needs assessment and health behavior research. As the Mexican American population continues its tremendous growth and aging it is vitally important to better understand the prevalence and outcomes of cognitive impairment and dementia in this population, and to rapidly develop interventions that address the burden of these common conditions in Mexican American adults, families, and communities.
- Conditions
- Dementia, Dementia Alzheimers, Dementia, Vascular, Dementia, Mixed
- Being tested
- No interventions
- Keywords
- Caregiving, Hispanic, Mexican American, Epidemiology, Community
- Medical subject headings
- Dementia, Alzheimer Disease, Dementia, Vascular, Mixed Dementias
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
No interventionsOther
No intervention
| Study group | Role | What they receive |
|---|---|---|
| Subjects with cognitive impairment | Subjects with MoCA <26 Receives: Other: No interventions | |
| Caregivers | Primary caregivers of subjects Receives: Other: No interventions |
What is being measured
The primary outcome is the main question the study is designed to answer.
Prevalence of mild cognitive impairment and dementia in Mexican Americans and non Hispanic whites
Prevalence estimates
Measured: 2 year data collection
Trajectory of cognitive function in Mexican Americans and non Hispanic whites
Change in cognitive function among subjects entered at baseline
Measured: 2 year follow-up after baseline
Caregiver outcomes and changes over time
Comparative caregiver outcomes among Mexican Americans and non Hispanic whites
Measured: 4 years
Secondary outcomes (1)
Needs and community available resources for cognitive impairment
An asset map and determination of needs
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Jan 2018
- Study start11 Apr 2018
- Primary completion30 Apr 2026
- Study completion30 Apr 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (11)Papers the sponsor has linked to this study.
- Other trials for DementiaStudies of the same condition, open and under way.
- More trials run by University of MichiganThe 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
- 634 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Michigan
- Sponsor type
- University, hospital or other
- Collaborators
- National Institutes of Health (NIH)
- Responsible party
- Principal investigator, Lewis Morgenstern, University of Michigan
- Investigators
- Lewis Morgenstern, MD, Principal investigator, University of Michigan
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03403257
- Sponsor's protocol ID
- R01NS100687
- Acronym
- BASIC-C
- Status last verified
- May 2026
- First submitted
- 11 Jan 2018
- Last updated
- 22 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: Data sharing plan conforms to NIH rules.
Publications
Briceno EM, Mehdipanah R, Gonzales X, Heeringa S, Levine DA, Langa KM, Garcia N, Longoria R, Morgenstern LB. Methods and Early Recruitment of a Community-Based Study of Cognitive Impairment Among Mexican Americans and Non-Hispanic Whites: The BASIC-Cognitive Study. J Alzheimers Dis. 2020;73(1):185-196. doi: 10.3233/JAD-190761.
PubMed 31771059Briceno EM, Mehdipanah R, Gonzales XF, Heeringa SG, Levine DA, Langa KM, Zahs D, Garcia N, Longoria R, Morgenstern LB. Bilingualism, assessment language, and the Montreal Cognitive Assessment in Mexican Americans. J Am Geriatr Soc. 2021 Jul;69(7):1971-1981. doi: 10.1111/jgs.17209. Epub 2021 May 7.
PubMed 33963535Mehdipanah R, Briceno EM, Gonzales XF, Heeringa SG, Levine DA, Langa KM, Garcia N, Longoria R, Morgenstern LB. Dementia care needs for individuals and caregivers among Mexican Americans and non-Hispanic Whites. Aging Ment Health. 2022 Aug;26(8):1630-1641. doi: 10.1080/13607863.2021.1925222. Epub 2021 Jun 7.
PubMed 34096422Briceno EM, Mehdipanah R, Gonzales XF, Heeringa SG, Levine DA, Langa KM, Zahs D, Garcia N, Longoria R, Vargas A, Morgenstern LB. Differential Relationships Between the Montreal Cognitive Assessment and Informant-Rated Cognitive Decline Among Mexican Americans and Non-Hispanic Whites. J Geriatr Psychiatry Neurol. 2022 Jul;35(4):555-564. doi: 10.1177/08919887211029383. Epub 2021 Jul 22.
PubMed 34291678Khan N, Garcia N, Mehdipanah R, Briceno EM, Heeringa SG, Levine DA, Gonzales XF, Langa KM, Longoria R, Morgenstern LB. Lack of Any Caregiving for Those with Dementia. J Alzheimers Dis. 2022;86(2):531-535. doi: 10.3233/JAD-215418.
PubMed 35068465Gonzales XF, Heeringa SG, Briceno EM, Mehdipanah R, Levine DA, Langa KM, Garcia N, Longoria R, Morgenstern LB. Mexican Americans Participate in Research More than Expected while non-Hispanic Whites Participate Less than Expected. J Health Care Poor Underserved. 2022;33(2):590-596. doi: 10.1353/hpu.2022.0049.
PubMed 35574862Mehdipanah R, Briceno EM, Heeringa SG, Gonzales XF, Levine DA, Langa KM, Garcia N, Longoria R, Chang W, Morgenstern LB. Neighborhood SES and Cognitive Function Among Hispanic/Latinx Residents: Why Where You Live Matters. Am J Prev Med. 2022 Oct;63(4):574-581. doi: 10.1016/j.amepre.2022.04.016. Epub 2022 Jun 9.
PubMed 35691843Becker CJ, Heeringa SG, Chang W, Briceno EM, Mehdipanah R, Levine DA, Langa KM, Gonzales XF, Garcia N, Longoria R, Springer MV, Zahuranec DB, Morgenstern LB. Differential Impact of Stroke on Cognitive Impairment in Mexican Americans and Non-Hispanic White Americans. Stroke. 2022 Nov;53(11):3394-3400. doi: 10.1161/STROKEAHA.122.039533. Epub 2022 Aug 12.
PubMed 35959679Martins-Caulfield J, Mehdipanah R, Briceno EM, Chang W, Heeringa SG, Gonzales XF, Levine DA, Langa KM, Zahuranec DB, Garcia N, Morgenstern LB. Dementia Diagnosis Unawareness and Caregiver Burden in a Multi-ethnic Cohort. J Gen Intern Med. 2025 Jul;40(10):2284-2291. doi: 10.1007/s11606-024-09333-1. Epub 2025 Jan 14.
PubMed 39808391Morgenstern LB, Briceno EM, Mehdipanah R, Chang W, Lewandowski-Romps L, Gonzales XF, Levine DA, Langa KM, Garcia N, Khan N, Zahuranec DB, Heeringa SG. A Community-Based Study of Dementia in Mexican American and Non-Hispanic White Individuals. J Alzheimers Dis. 2024;97(2):649-658. doi: 10.3233/JAD-230729.
PubMed 38143352Khan N, Briceno EM, Mehdipanah R, Lewandowski-Romps L, Heeringa SG, Garcia N, Levine DA, Langa KM, Morgenstern LB. A community-based study of reporting demographic and clinical information concordance between informants and cognitively impaired participants. Aging Clin Exp Res. 2023 Jul;35(7):1571-1576. doi: 10.1007/s40520-023-02435-6. Epub 2023 May 19.
PubMed 37204754
Study at a glance
From the registry record, last updated by the sponsor on 22 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Brain Attack Surveillance in Corpus Christi--Cognitive (BASIC-Cognitive)
- ClinicalTrials.gov ID
- NCT03403257
- Acronym / sponsor ID
- BASIC-C / R01NS100687
- Conditions
- Dementia, Dementia Alzheimers, Dementia, Vascular, Dementia, Mixed
- Keywords
- Caregiving, Hispanic, Mexican American, Epidemiology, Community
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 634 participants (actual)
- Lead sponsor
- University of MichiganUniversity, hospital or other
- Collaborators
- National Institutes of Health (NIH)
- Study start
- 11 Apr 2018 (actual)
- Primary completion
- 30 Apr 2026 (actual)
- Study completion
- 30 Apr 2026 (actual)
- First posted
- 18 Jan 2018 (actual)
- 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.
The Mexican American population in the U.S. is rapidly growing and aging. This project seeks to determine the prevalence and outcomes of cognitive impairment and dementia in Mexican Americans. It also seeks solutions to help patients with cognitive impairment and dementia and their caregivers get the resources they need.
Detailed description
Hispanic/Latinos will comprise more than 30% of the U.S. population by mid-century, and Mexican Americans account for the largest share of this growing segment of society. This proposal aims to use door-to-door surveillance in Nueces County, Texas, a non-immigrant, bi-ethnic community, to determine the prevalence and trajectory over time of cognitive impairment and dementia in Mexican Americans and non Hispanic whites. The study will elucidate the mechanisms that explain the hypothesized ethnic disparity in Alzheimer's disease and Alzheimer-related dementias by evaluating the roles of vascular disease risk factors, educational attainment and socio-economic status among others. This research will also delve deeply into the differences in informal caregiving for Mexican American and non Hispanic whites with cognitive impairment and dementia. Caregiver burden and mental and physical health of caregivers will be examined toward efforts to develop interventions that build resilience in caregivers. A novel ability of this population-based study is to examine community resources for both patients and caregivers, and how these provisions differ by ethnicity. Using a rigorous mixed methods approach the study will identify the gap between available resources and needs for those with cognitive impairment and dementia. In this way we will be well positioned to propose ethnic-specific testable interventions that promote mental and physical health for those with cognitive impairment and dementia, as well as for those family members who provide the care. This research will therefore lead to improved well-being, autonomy and outcomes among those with cognitive impairment and dementia and their caregivers. The investigative team members have conducted research in this community for 20 years and are experts in Mexican American culture and health, cognitive impairment and dementia, epidemiologic methods, community needs assessment and health behavior research. As the Mexican American population continues its tremendous growth and aging it is vitally important to better understand the prevalence and outcomes of cognitive impairment and dementia in this population, and to rapidly develop interventions that address the burden of these common conditions in Mexican American adults, families, and communities.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Subjects with cognitive impairment | – | Other: No interventionsSubjects with MoCA <26 |
| Caregivers | – | Other: No interventionsPrimary caregivers of subjects |
Who may qualify
- Ages
- 65 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Older adult
- Study population
- Residents of Nueces County, Texas
Key inclusion criteria (1 listed)
- 1.65 years of age or older 2. MoCA < 26 3. Nueces County resident at least 6 months a year 4. English or Spanish speaking 5. Community dwelling or nursing home
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| No interventionsNo intervention | Other | Caregivers, Subjects with cognitive impairment |
Primary outcome
Prevalence of mild cognitive impairment and dementia in Mexican Americans and non Hispanic whites
Time frame: 2 year data collection
Prevalence estimates
Trajectory of cognitive function in Mexican Americans and non Hispanic whites
Time frame: 2 year follow-up after baseline
Change in cognitive function among subjects entered at baseline
Caregiver outcomes and changes over time
Time frame: 4 years
Comparative caregiver outcomes among Mexican Americans and non Hispanic whites
1 secondary outcome
Needs and community available resources for cognitive impairment
Time frame: 2 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 22 May 2026.
- Results publication: PubMed 31771059Briceno EM, Mehdipanah R, Gonzales X, Heeringa S, Levine DA, Langa KM, Garcia N, Longoria R, Morgenstern LB. Methods and Early Recruitment of a Community-Based Study of Cognitive Impairment Among Mexican Americans and Non-Hispanic Whites: The BASIC-Cognitive Study. J Alzheimers Dis. 2020;73(1):185-196. doi: 10.3233/JAD-190761.
- Results publication: PubMed 33963535Briceno EM, Mehdipanah R, Gonzales XF, Heeringa SG, Levine DA, Langa KM, Zahs D, Garcia N, Longoria R, Morgenstern LB. Bilingualism, assessment language, and the Montreal Cognitive Assessment in Mexican Americans. J Am Geriatr Soc. 2021 Jul;69(7):1971-1981. doi: 10.1111/jgs.17209. Epub 2021 May 7.
- Results publication: PubMed 34096422Mehdipanah R, Briceno EM, Gonzales XF, Heeringa SG, Levine DA, Langa KM, Garcia N, Longoria R, Morgenstern LB. Dementia care needs for individuals and caregivers among Mexican Americans and non-Hispanic Whites. Aging Ment Health. 2022 Aug;26(8):1630-1641. doi: 10.1080/13607863.2021.1925222. Epub 2021 Jun 7.
- Results publication: PubMed 34291678Briceno EM, Mehdipanah R, Gonzales XF, Heeringa SG, Levine DA, Langa KM, Zahs D, Garcia N, Longoria R, Vargas A, Morgenstern LB. Differential Relationships Between the Montreal Cognitive Assessment and Informant-Rated Cognitive Decline Among Mexican Americans and Non-Hispanic Whites. J Geriatr Psychiatry Neurol. 2022 Jul;35(4):555-564. doi: 10.1177/08919887211029383. Epub 2021 Jul 22.
- Results publication: PubMed 35068465Khan N, Garcia N, Mehdipanah R, Briceno EM, Heeringa SG, Levine DA, Gonzales XF, Langa KM, Longoria R, Morgenstern LB. Lack of Any Caregiving for Those with Dementia. J Alzheimers Dis. 2022;86(2):531-535. doi: 10.3233/JAD-215418.
- Results publication: PubMed 35574862Gonzales XF, Heeringa SG, Briceno EM, Mehdipanah R, Levine DA, Langa KM, Garcia N, Longoria R, Morgenstern LB. Mexican Americans Participate in Research More than Expected while non-Hispanic Whites Participate Less than Expected. J Health Care Poor Underserved. 2022;33(2):590-596. doi: 10.1353/hpu.2022.0049.
- Results publication: PubMed 35691843Mehdipanah R, Briceno EM, Heeringa SG, Gonzales XF, Levine DA, Langa KM, Garcia N, Longoria R, Chang W, Morgenstern LB. Neighborhood SES and Cognitive Function Among Hispanic/Latinx Residents: Why Where You Live Matters. Am J Prev Med. 2022 Oct;63(4):574-581. doi: 10.1016/j.amepre.2022.04.016. Epub 2022 Jun 9.
- Results publication: PubMed 35959679Becker CJ, Heeringa SG, Chang W, Briceno EM, Mehdipanah R, Levine DA, Langa KM, Gonzales XF, Garcia N, Longoria R, Springer MV, Zahuranec DB, Morgenstern LB. Differential Impact of Stroke on Cognitive Impairment in Mexican Americans and Non-Hispanic White Americans. Stroke. 2022 Nov;53(11):3394-3400. doi: 10.1161/STROKEAHA.122.039533. Epub 2022 Aug 12.
- Derived from this study: PubMed 39808391Martins-Caulfield J, Mehdipanah R, Briceno EM, Chang W, Heeringa SG, Gonzales XF, Levine DA, Langa KM, Zahuranec DB, Garcia N, Morgenstern LB. Dementia Diagnosis Unawareness and Caregiver Burden in a Multi-ethnic Cohort. J Gen Intern Med. 2025 Jul;40(10):2284-2291. doi: 10.1007/s11606-024-09333-1. Epub 2025 Jan 14.
- Derived from this study: PubMed 38143352Morgenstern LB, Briceno EM, Mehdipanah R, Chang W, Lewandowski-Romps L, Gonzales XF, Levine DA, Langa KM, Garcia N, Khan N, Zahuranec DB, Heeringa SG. A Community-Based Study of Dementia in Mexican American and Non-Hispanic White Individuals. J Alzheimers Dis. 2024;97(2):649-658. doi: 10.3233/JAD-230729.
- Derived from this study: PubMed 37204754Khan N, Briceno EM, Mehdipanah R, Lewandowski-Romps L, Heeringa SG, Garcia N, Levine DA, Langa KM, Morgenstern LB. A community-based study of reporting demographic and clinical information concordance between informants and cognitively impaired participants. Aging Clin Exp Res. 2023 Jul;35(7):1571-1576. doi: 10.1007/s40520-023-02435-6. Epub 2023 May 19.
- Individual participant dataSharing planned: Undecided. Data sharing plan conforms to NIH rules.
Related trials for Dementia
Not yet recruitingPhase 1
A Study to Learn How Different Amounts of the Study Medicine Called PF-08161842 Are Tolerated and Act in the Body in Healthy and Older Adults
Alzheimer Disease
Active, not recruiting
Emergency Preparedness for Caregivers of Persons With Dementia: Disaster PrepWise
Caregiver Resilience and Stress
Active, not recruitingObservational study
A Community-Based Screening Program to Identify Participants at High Risk for Amyloid Pathology
Alzheimer's Disease
RecruitingObservational study
Amyloid PET Imaging in the Baltimore Longitudinal Study of Aging
Aging
RecruitingObservational study
Triage Survey for Neurology Research Eligibility
Alzheimer Disease
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.
Lewis Morgenstern, MD principal investigator
University of Michigan
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Dementia and Dementia Alzheimers, run by University of Michigan at 1 site in United States.
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 1 inclusion and 0 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 22 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. 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?
Prevalence of mild cognitive impairment and dementia in Mexican Americans and non Hispanic whites (time frame: 2 year data collection). 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 NCT03403257, which also lists 11 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 22 May 2026.