Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Innate-like and NK Signatures in Chronic-Treated HIV Infection INSTINCT-HIV (INSTINCT-HIV)

24. september 2026 oppdatert av: Hospices Civils de Lyon

Infection with the human immunodeficiency virus (HIV) is a chronic condition requiring lifelong antiretroviral therapy (ART). Despite prolonged virological control under suppressive ART, HIV persists in the form of a stable viral reservoir known as the 'integrated' reservoir, mainly localised in CD4+ memory T cells, which constitutes the obstacle to a functional or sterilising cure of the infection. The immunological mechanisms involved in the control, stability or gradual depletion of this reservoir are still not fully understood.

Among the cellular populations of the innate immune system, Natural Killer (NK) cells play an important role in the trajectory of the reservoir by having the ability to eliminate HIV-infected cells. However, several studies have shown that these NK cells exhibit variable capabilities in eliminating such cells, suggesting that inter-individual heterogeneity in innate immune responses may contribute to the observed differences in the size and persistence of the viral reservoir in people living with HIV (PLHIV) on long-term suppressive ART. Functionally, interactions between NK cell receptors and class I HLA molecules (HLA I) strongly modulate the education, repertoire and effector functions of NK cells, indicating that the immunogenetics of the host's HLA I alleles is therefore a major determinant of this variability. Certain receptor/HLA I combinations, notably receptors known as KIRs, have been associated with differences in the progression of HIV infection and immunovirological control. Consequently, their role in the dynamics of the viral reservoir during prolonged suppressive ART needs to be explored. Finally, biological sex significantly influences anti-HIV immune responses, with females showing a favourable response. Whilst sex differences in NK cell function and immune activation have been described, the impact of biological sex on the dynamics of the HIV reservoir under prolonged suppressive ART remains largely unknown and requires further investigation

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Studietype

Observasjonsmessig

Registrering (Antatt)

100

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

The target population consists of adults aged 18 years or over living with HIV who are being monitored by the Department of Infectious and Tropical Diseases at the Hospices Civils de Lyon and who have been receiving prolonged, continuous, suppressive antiviral treatment for at least five full years.

Participants must meet the following criteria:

  • a plasma viral load that has been consistently undetectable since the start of ART and for more than 5 years;
  • must not have experienced, since the start of antiviral treatment, more than two isolated episodes of virological rebound ('blips') ≥ 100 copies/mL, measured in a peripheral blood sample taken during a routine consultation.

Beskrivelse

Inclusion Criteria:

  • Be aged 18 or over;
  • Be living with HIV-1 infection;
  • Be under the care of the Department of Infectious and Tropical Diseases at the Lyon university Hopsital (Hospices Civils de Lyon);
  • Have been receiving continuous ART for at least 5 full years;
  • Have a consistently undetectable plasma HIV viral load whilst on ART;
  • Have experienced no more than two isolated episodes of virological rebound ('blips') ≥ 100 copies/mL;
  • Have usable biological samples for the planned analyses and/or agree to the collection of samples required for the research;
  • Have received written and verbal information about the research;
  • Have signed the written consent form prior to any research-specific procedures.

Exclusion Criteria:

  • Patients who have taken part in an interventional therapeutic trial specifically targeting an HIV cure strategy likely to have a lasting effect on the immunological or virological parameters under investigation;
  • Patients who have experienced more than two episodes of virological rebound ≥ 100 copies/mL whilst on ART;
  • Pregnant women, women in labour or breastfeeding women;
  • Persons deprived of their liberty by judicial or administrative order;
  • Persons subject to a legal protection order;
  • Adults subject to a legal protection measure (guardianship, curatorship);
  • Persons admitted to a health or social care facility for purposes other than research;
  • Persons receiving psychiatric care;
  • Persons who have expressed their objection to participating in the research or to the use of their data and biological samples.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
People living with HIV

Adult patients living with HIV who have been receiving prolonged, continuous, suppressive antiviral treatment for at least five full years.

A 50 ml venous blood sample is taken upon the participant's enrolment

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Identifying immune profiles associated with better control of this reservoir.
Tidsramme: Day 1

The primary endpoint is a composite measure combining the phenotypic and functional characterisation of NK cells and related cells of the innate immune system, and the number of mononuclear cells infected with HIV provirus (reservoir).

Day 1

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Etterforskere

  • Hovedetterforsker: Florence ADER, M.D.,PhD., Hospices Civils de Lyon

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

12. januar 2027

Primær fullføring (Antatt)

1. desember 2027

Studiet fullført (Antatt)

1. desember 2027

Datoer for studieregistrering

Først innsendt

24. september 2026

Først innsendt som oppfylte QC-kriteriene

24. september 2026

Først lagt ut (Faktiske)

30. september 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

30. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

24. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • 69HCL26_0720
  • 2026-A02069-42 (Annen identifikator: ID-RCB)

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .