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Cognitive Detection of Preclinical AD: Validation Using Biomarkers

13. januar 2021 opdateret af: NYU Langone Health
The current study aims to validate several novel cognitive tasks expected to be sensitive to brain impairment in specific anatomic regions affected in preclinical Alzheimer's disease(pAD). The tasks are validated in 60 cognitively and clinically normal participants ages 60 - 85, inclusive, against reasonably well-established biomarkers of Alzheimer's disease, including 1) simultaneous positron emission tomography (PET) [18F]Flutemetamol amyloid and CT imaging and 2) to the extent data is available from other studies, participants' brain MRI and cerebral spinal fluid (CSF) amyloid and tau.

Studieoversigt

Status

Afsluttet

Betingelser

Detaljeret beskrivelse

Biomarkers, such as amyloid deposition, and Hipp volume loss, and low Aβ and high pTau in CSF, are useful for identifying cognitively normal (CN) elderly who are likely have early AD pathology ("preclinical AD"). However, they are invasive and/or expensive. The goal of the current study is to develop and validate cognitive proxies of AD biomarkers by using cognitive tasks that are dependent on brain regions impaired by very early AD pathology. If successful, these tasks will provide a non-invasive and cost-effective way to identify and track change in CN individuals at high risk for progressing to mild cognitive impairment (MCI) and dementia stages of AD and thus will facilitate future prevention trials in pAD.

Subjects will attend three study visits. During the first study visit, subjects will have eligibility criteria confirmed, have a blood sample drawn, and complete about half of the cognitive tasks. The second visit, which will occur within one week of visit one, will involve completion of the remaining cognitive tasks. Subjects will also be asked to have a PET-CT scan during visit three (to occur within 3 months of visits 1 and 2).

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

81

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • New York
      • New York, New York, Forenede Stater, 10016
        • NYU Langone Medical Center

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

60 år til 85 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Participants will be elderly individuals who are participating in ongoing clinical research at the NYU CCN, including at the ADC and the Center for Brain Health (CBH). Participants may also be recruited through community outreach or referrals from other centers. Cognitively normal (CN) participants and participants with amnestic mild cognitive impairment (aMCI) will be enrolled.

Beskrivelse

Inclusion Criteria:

  • Prior enrollment as a participant in the NYU Alzheimer's Disease Center (ADC) and completion of the ADC Clinical Evaluation within the past year.
  • Clinical diagnosis of "cognitively normal" or "amnestic mild cognitive impairment" based on recent (within 1 year) consensus meeting cross-referenced with standard neuropsychological scores.
  • Normal or corrected-to-normal vision and hearing (able to see images on computer screen and hear auditory events delivered through the computer speaker).

Exclusion Criteria:

  • Significant history of mental illness, drug or alcohol abuse; severe trauma preventing normal use of dominant hand (needed to move the mouse cursor); clinical depression (unless medically controlled); other neurologic conditions (i.e. stroke), or learning disability; ophthalmologic/visual problems that prevent viewing a computer screen at a normal distance (such as legal blindness, detached retinas, occlusive cataracts).
  • Lack of capacity to give informed consent and no legally authorized representative to provide consent.
  • Having pacemakers, aneurysm clips, cochlear implants, or metal/foreign objects in body and therefore, unable to receive MRI.
  • Pregnancy, breastfeeding or planning to have a baby.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: Kohorte
  • Tidsperspektiver: Tværsnit

Kohorter og interventioner

Gruppe / kohorte
Cognitively Normal
Participants will be deemed cognitively normal based on criteria set forth by the National Alzheimer's Disease Coordinating Center/Alzheimer's Disease Centers (ADCC/ADC).
Amnestic Mild Cognitive Impairment (aMCI)
Participants will be deemed aMCI based on criteria set forth by the National Alzheimer's Disease Coordinating Center/Alzheimer's Disease Centers (ADCC/ADC).

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Correlation of composite score on cognitive tests with biomarkers
Tidsramme: 3 months
The overall score on the cognitive tests will be correlated via a linear regression with biomarker data collected during the study. Each biomarker will be regressed individually. Biomarker data includes: MRI hippocampus (hipp) volume, entorhinal cortex (EC) volume, EC standard uptake value ratios (SUVRs), Hipp SUVR, precuneus (PCu) SUVR, PET-[18F] Flutemetamol SUVR, CSF Aβ and tau levels, levels of diffusion tensor imaging mean diffusivity, and levels of fractional anisotropy.
3 months

Sekundære resultatmål

Resultatmål
Tidsramme
Presence of ApoE allele
Tidsramme: 3 months
3 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

NYU Langone Health

Samarbejdspartnere

Janssen Scientific Affairs, LLC

Efterforskere

  • Ledende efterforsker: Martin Sadowski, PhD, NYU Langone Medical Center

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

5. januar 2016

Primær færdiggørelse (Faktiske)

12. august 2020

Studieafslutning (Faktiske)

12. august 2020

Datoer for studieregistrering

Først indsendt

25. november 2015

Først indsendt, der opfyldte QC-kriterier

25. november 2015

Først opslået (Skøn)

30. november 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. januar 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

13. januar 2021

Sidst verificeret

1. januar 2021

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 13-00706

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

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produkt fremstillet i og eksporteret fra U.S.A.

Ingen

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