- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT00315575
Memory Imaging of Normal Aging
BOLD and Perfusion fMRI of Alzheimer's Disease Risk
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
The overall goals of this project are to identify consistent patterns of variance in brain function in patients at risk for Alzheimer's Disease by using APOE ε4 as a marker for disease risk. The activation Blood Oxygen Level Dependency (BOLD) signal will be compared to both resting and activation perfusion signals to assess the variability of cerebral blood flow as it relates to the BOLD signal. Each participant will be imaged on a 3T MRI scanner while performing an associate episodic memory task.
A total of 90 individuals will be recruited for this study. Participants will be non-demented, right handed, adults with or without at least one APOE ε4 allele. Groups will be split as follows: A) ages 25-39: non-ε4 (n=15); B) ages 25-39: +ε4 (n=15); C) ages 40-49: non-ε4 (n=15); D) ages 40-49: +ε4 (n=15);.E) ages 50-65: non-ε4: F) ages 50-65: +ε4 (n=15). These groups will be matched for mean age, mean years of education, gender distribution, as well as the presence or absence of a family history of AD in a first degree relative.
There will be 2 scanning sessions for each participant. Scan session #1 and Scan session #2 will be acquired within 2 weeks of each other and will take approximately one hour each.
Studietype
Inschrijving (Verwacht)
Contacten en locaties
Studie Locaties
-
-
California
-
La Jolla, California, Verenigde Staten, 92037
- Shiley-Marcos Alzheimer's Disease Research Center, University of California, San Diego
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Right-handed
Exclusion Criteria:
- Major medical illnesses
- History of significant head trauma with residual cognitive deficits
- Other neurological or major psychiatric disorders such as schizophrenia, bipolar disorder, developmental learning disorder, and alcohol or substance abuse
- MRI contra-indications
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
|---|---|
|
1
Individuals with high risk for Alzheimer's disease
|
Blood oxygenation and perfusion functional MRI performed twice, two weeks apart; each scan lasts 1 hour
|
|
2
Individuals with low risk for Alzheimer's disease
|
Blood oxygenation and perfusion functional MRI performed twice, two weeks apart; each scan lasts 1 hour
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
|
identification of consistent patterns of variance in brain function in subjects at risk for Alzheimer's Disease by using APOE ε4 as a marker for disease risk
Tijdsspanne: single time point
|
single time point
|
Medewerkers en onderzoekers
Onderzoekers
- Hoofdonderzoeker: Adam Fleisher, MD, University of California, San Diego
Publicaties en nuttige links
Algemene publicaties
- Fleisher A, Grundman M, Jack CR Jr, Petersen RC, Taylor C, Kim HT, Schiller DH, Bagwell V, Sencakova D, Weiner MF, DeCarli C, DeKosky ST, van Dyck CH, Thal LJ; Alzheimer's Disease Cooperative Study. Sex, apolipoprotein E epsilon 4 status, and hippocampal volume in mild cognitive impairment. Arch Neurol. 2005 Jun;62(6):953-7. doi: 10.1001/archneur.62.6.953.
- Bookheimer SY, Strojwas MH, Cohen MS, Saunders AM, Pericak-Vance MA, Mazziotta JC, Small GW. Patterns of brain activation in people at risk for Alzheimer's disease. N Engl J Med. 2000 Aug 17;343(7):450-6. doi: 10.1056/NEJM200008173430701.
- Mayeux R, Ottman R, Tang MX, Noboa-Bauza L, Marder K, Gurland B, Stern Y. Genetic susceptibility and head injury as risk factors for Alzheimer's disease among community-dwelling elderly persons and their first-degree relatives. Ann Neurol. 1993 May;33(5):494-501. doi: 10.1002/ana.410330513.
- Fleisher AS, Houston WS, Eyler LT, Frye S, Jenkins C, Thal LJ, Bondi MW. Identification of Alzheimer disease risk by functional magnetic resonance imaging. Arch Neurol. 2005 Dec;62(12):1881-8. doi: 10.1001/archneur.62.12.1881.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- IA0092
- 5K23AG024062-02 (Subsidie/contract van de Amerikaanse NIH)
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .