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Stanford Universities: The Stanford HIV Aging Cohort

16. marts 2021 opdateret af: Philip Grant, Stanford University

The Stanford HIV Aging Cohort (SHAC)

A research study to evaluate the effect of aging and HIV on neurocognitive dysfunction (declining ability to process information), physical frailty and heart disease. HIV-infected participants whose virus is controlled on antiretroviral medications will be studied to determine the rates and risk factors of developing these conditions.

Studieoversigt

Status

Afsluttet

Betingelser

Detaljeret beskrivelse

With advances in antiretroviral therapy, the life expectancy of HIV-infected individuals continues to improve with older individuals representing a rapidly growing proportion of those infected. However, despite improved life expectancy, substantial residual morbidity remains in treated HIV including increased rates of neurocognitive dysfunction, frailty, and cardiovascular disease. As these conditions also increase with normal aging, HIV is often thought to be a risk factor for "early" or "accelerated" aging. Prior studies have generally focused on HIV-specific factors and risk for neurocognitive dysfunction, frailty, and cardiovascular disease, while few have examined extensively risk factors found to be significant for these conditions in the general population.

The investigators hypothesize that the effects of age and HIV will be synergistic on the rates of non-AIDS morbidity. While the correlates and risk factors for non-AIDS morbidity in younger individuals may largely be related to HIV, in older individuals with sustained virologic control, traditional risk factors for neurocognitive disease, frailty, and cardiovascular disease will contribute more significantly to disease than HIV-specific risk factors. Our primary objectives are to:

  1. Define the prevalence and incidence of neurocognitive dysfunction, frailty, and cardiovascular disease in a well-defined cohort of aging virologically suppressed HIV-infected individuals.
  2. Identify correlates and risk factors for prevalent and incident neurocognitive dysfunction, frailty, and cardiovascular disease.
  3. Compare and contrast the identified correlates and risk factors for the co-morbidities of interest in older (>50 years old) and younger HIV-infected individuals.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

154

Kontakter og lokationer

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

Studiesteder

  • Forenede Stater
    • California
      • Stanford, California, Forenede Stater, 94305
        • Stanford University School of Medicine

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

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

300 HIV-infected participants whose virus is controlled on antiretroviral medications from the Stanford Positive Care Clinic. Five (150) patients over 50 years old and five (150) patients less than 50 years old

Beskrivelse

Inclusion Criteria:

  • Subjects must have an HIV RNA level below the limit of quantification (e.g., <75 copies, <50 copies, or <48 copies/mL, depending on the assay used) for at least 6 months excluding "blips" (e.g., a single measurement between 48-200 copies/mL preceded and followed by measurements below the limit of quantification) while on antiretroviral therapy.

Exclusion Criteria:

  1. Completed treatment for any acute systemic infection (other than HIV-1) less than four weeks before study entry.
  2. Any active brain infection (except for HIV-1), brain neoplasm, or space-occupying brain lesion.
  3. Receipt of immunomodulating medication (e.g., corticosteroids, immunoglobulin, etc.) within four weeks of study entry.
  4. Any active psychiatric illness including schizophrenia, severe depression, or severe bipolar affective disorder that, in the opinion of the investigator, could confound the analysis of the neuropsychological test results.
  5. Active drug or alcohol abuse that, in the investigator's opinion, could prevent compliance with study procedures or confound the analysis of study endpoints.
  6. Unable to provide informed consent

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
neurocognitive testing
Tidsramme: 1 year
Controlled oral word association test-FAS, Paced auditory serial addition task, trail making a and b, REY auditory verbal learning test, grooved peg board, timed gait
1 year

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
cardiovascular testing
Tidsramme: 1 yr
ankle-brachial index
1 yr

Samarbejdspartnere og efterforskere

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

Sponsor

Stanford University

Efterforskere

  • Ledende efterforsker: Philip Grant, Stanford University

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)

1. december 2010

Primær færdiggørelse (Faktiske)

1. december 2015

Studieafslutning (Faktiske)

1. december 2015

Datoer for studieregistrering

Først indsendt

19. juli 2011

Først indsendt, der opfyldte QC-kriterier

22. juli 2011

Først opslået (Skøn)

25. juli 2011

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

17. marts 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

16. marts 2021

Sidst verificeret

1. marts 2021

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • SU-12142010-7318

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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Betingelser

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Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

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