Identifying genes linked to Alzheimer's Disease

National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD)

Observational Indiana University · NCT00064870

This study is trying to find out which genes might be linked to Alzheimer's Disease by collecting samples from families who have multiple members diagnosed with it.

Quick facts

Study typeObservational
Enrollment10000 (estimated)
Ages18 Years and up
SexAll
SponsorIndiana University Academic / other
Locations1 site (Nationwide, Indiana)
Trial IDNCT00064870 on ClinicalTrials.gov

What this trial studies

The Alzheimer's Disease Genetics Study aims to identify the genetic factors that contribute to Alzheimer's Disease by collecting biological samples from families with multiple members diagnosed with Alzheimer's or dementia. Eligible families must have at least two living blood-related individuals diagnosed with these conditions. The study will gather genetic material, which will be made available to qualified researchers under strict privacy agreements. This observational study spans multiple locations across the United States, facilitating participation from diverse families.

Who should consider this trial

Good fit: Ideal candidates for this study are families with at least two living members diagnosed with Alzheimer's Disease or other forms of dementia.

Not a fit: Patients who do not have a family history of Alzheimer's Disease or dementia may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to a better understanding of the genetic causes of Alzheimer's Disease, potentially informing future prevention and treatment strategies.

How similar studies have performed: Other studies investigating genetic factors in Alzheimer's Disease have shown promise, suggesting that this approach could yield valuable insights.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Two living family members diagnosed with AD or other dementia with any age of onset
* Biological samples available

  * Fresh blood, or
  * Immortalized lymphoblastic cell lines, or
  * 3-5 grams of frozen cerebral cortex; fixed samples are not accepted

Please note: this study does not include genetic counseling; because no personal identifying information such as name or date of birth is attached to samples, results of individual tests are not available to participants or family members.

Exclusion Criteria:

* Does not meet inclusion criteria
* Member of a family that was included in the National Institute of Mental Health AD Genetics Sib Pair collection

Where this trial is running

Nationwide, Indiana

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Alzheimer DiseaseLate Onset Alzheimer DiseaseDementiaAlzheimer diseaseLate Onset Alzheimer disease risk factor genesGeneticsInitiative
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.