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Dementia of Alzheimer TypeNCT04680013

Genetic Studies in Familial Dementia

An observational study of Dementia of Alzheimer Type and Alzheimer Disease, Late Onset, run by University of Miami at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to identify genetic factors that contribute to or cause dementia (loss of memory) and related disorders across all ages and ethnic groups. This includes a number of neurological diseases such as early and late-onset Alzheimer disease, mild cognitive impairment, and other dementias. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
How many people
4,884 participants
Where
1 siteUnited States
Study dates
1 Jun 2007to 29 Oct 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 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: The study population consists of older individuals affected by dementia, mild cognitive impairment, cognitive controls, or their family members. Ascertainment is across both males and females, and all race-ethnic groups.

Who may be able to join

  • 18 years and older
  • Patients diagnosed with dementia, their family members and unrelated healthy controls without dementia.

Who cannot join

  • 1. Individuals with competing diagnosis such as: Amyotrophic lateral sclerosis, Frontotemporal lobar degeneration, Multiple system atrophy, Corticobasal degeneration, Progressive Supranuclear Palsy, Huntington's disease, traumatic brain injury, drug or alcohol abuse, or schizophrenia, etc. (unless family members of a dementia affected individual).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Miami

    Miami, Florida, 33136

Other trials in United States

About this study

The purpose of this study is to identify genetic factors that contribute to or cause dementia (loss of memory) and related disorders across all ages and ethnic groups. This includes a number of neurological diseases such as early and late-onset Alzheimer disease, mild cognitive impairment, and other dementias.

Keywords
Memory loss
Medical subject headings
Alzheimer Disease, Cognitive Dysfunction, Dementia, Memory Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04680013
Study groupRoleWhat they receive
Cognitive ControlParticipants in this group are cognitively intact.
Mild Cognitive ImpairmentParticipants in this group have mild cognitive impairment.
Dementia GroupParticipants in this group have dementia.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Correlation between genetic factors and Alzheimer disease, dementia, and related phenotypes.

    Genetic factors will be measured through genome-wide genotyping arrays and/or whole-genome sequencing, and then correlated with Alzheimer disease and related phenotypes, such as cognitive impairment, functional impairment, and relevant biomarkers.

    .

    Measured: 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Dec 2020
  2. Study start1 Jun 2007
  3. Primary completion29 Oct 2024
  4. Study completion29 Oct 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Enrolment
4,884 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04680013
Sponsor's protocol ID
20070307
Other IDs
RF1AG054080, RF1AG054074, U01AG052410
Status last verified
Feb 2025
First submitted
17 Dec 2020
Last updated
3 Mar 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Data from this study will be shared via government required repositories and with our collaborators. Data are coded, with no personally identifiable information included. Data shared include the genomic data (array data, sequence data, APOE genotyping results, etc), phenotype data (case/control status, age of onset, etc), and basic demographic information (sex, race/ethnicity data if available, etc). The NIH Genomic Data Sharing Policy (GDS Policy) took effect on January 25th, 2015. This necessitates that we send coded data and samples to the National Institute on Aging Genetics of Alzheimer's Disease (NIAGADS)l; in some cases materials derived from participants (blood or DNA) may be stored at the National Cell Repository for Alzheimer's Disease (NCRAD). We may share deidentified genomic and phenotypic data with collaborators at other sites in order the accomplish the scientific aims of the study. Such research is performed with the approval of the local internal review boards.

Questions about this trial

What is this clinical trial studying?

An observational study of Dementia of Alzheimer Type and Alzheimer Disease, Late Onset, run by University of Miami 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 2 inclusion and 1 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 3 Mar 2025. 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?

Correlation between genetic factors and Alzheimer disease, dementia, and related phenotypes. (time frame: 5 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 3 Mar 2025; AzTrials last refreshed its copy on 3 Nov 2026.

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