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Safety and Immunogenicity of MVA.HIVconsv in HIV-1 Seropositive Adults on HAART

7 juni 2016 uppdaterad av: University of Oxford

HIV-CORE 001 - A Randomised Placebo-controlled Study to Evaluate the Safety and Immunogenicity of a Candidate HIV-1 Vaccine, MVA.HIVconsv, Delivered by Intramuscular Needle Injection to HIV-1 Seropositive Adult Subjects Receiving Antiretroviral Therapy (ART).

In this study, the novel vaccine candidate, MVA.HIVconsv, will be tested for safety, tolerability and immunogenicity in HIV-1-seropositive subjects receiving effective antiretroviral therapy.

MVA.HIVconsv will be tested as a single vaccine modality, as a prelude to testing in a heterologous viral vector boost regimen which will include a replication-defective simian adenovirus expressing the same immunogen.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Studietyp

Interventionell

Inskrivning (Faktisk)

19

Fas

  • Fas 1

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Storbritannien
    • Oxon
      • Oxford, Oxon, Storbritannien, OX3 7LJ
        • Oxford Genitourinary Medicine
    • Oxons
      • Oxford, Oxons, Storbritannien, OX3 9DS
        • Weatherall Institute of Molecular Medicine

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 60 år (Vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Male or female, aged 18-60 years
  • Confirmed HIV-1 seropositive
  • Willing and able to give written informed consent for participation in the study
  • Treated continuously with a combination of 3 or more antiretroviral agents for the preceding 12 months
  • Willing and able to adhere to an effective ART regimen for the duration of the study (switching from current regimen is allowed if for reasons of tolerability or toxicity)
  • CD4 cell count > 350 cells/μl at screening and at the preceding clinic visit
  • Plasma viral load < 50 copies / ml at screening and at the preceding clinic visit
  • No new AIDS-defining diagnosis or progression of HIV-related disease in the preceding 6/12 months

  • Haematological and biochemical laboratory parameters as follows:

    • Haemoglobin > 10g/dl
    • Platelets > 100,000/μl
    • ALT ≤ 2.5 x ULN
    • Creatinine ≤ 1.3 x ULN
  • Serology: negative for hepatitis B surface antigen OR HbsAg positive with HBV DNA < 1000 copies/ml; negative for hepatitis C antibodies OR confirmed clearance of HCV infection (spontaneous or following treatment); negative syphilis serology or documented adequate treatment of syphilis if positive EIA IgG or TPHA
  • Available for follow up for duration of study (screening + 38 weeks) and willing to comply with the protocol requirements
  • Women of child-bearing age must not be pregnant, planning a pregnancy or breast-feeding. Sexually active women must be willing to use an approved method of contraception from screening until 4 months after the third immunisation. Sexually active men in heterosexual relationships must be willing to use an approved method of contraception with their partners from screening until 4 months after the third immunisation.

Exclusion Criteria:

  • Confirmed HIV-2 seropositive
  • Positive pregnancy test
  • Participation in another clinical trial within 12 weeks of study entry
  • History of autoimmune disease other than HIV-related auto-immune disease which has resolved with ART
  • History or clinical manifestations of any physical or psychiatric disorder which could impair the subject's ability to complete the study
  • History of anaphylaxis or severe adverse reaction to vaccines
  • History of alcohol or drug dependency which could, in the opinion of the investigators, impair the subject's ability to complete the study
  • Previous immunisation with a recombinant MVA vaccine
  • Immunisation with any experimental immunogens within 6 months of study entry
  • Receipt of blood products or immunoglobulins within 6 months of study entry
  • Treatment for cancer or lymphoproliferative disease within 1 year of study entry
  • Receipt of vaccines other than Hepatitis B vaccine within 2 weeks of study entry or planned receipt within 2 weeks of vaccination
  • Any other prior therapy which, in the opinion of the investigators, would make the individual unsuitable for the study or influence the results of the study
  • Current or recent use (within last 3 months) of interferon or systemic corticosteroids or other immunosuppressive agents

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Fyrdubbla

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Low dose vaccinees
Individuals will receive three intramuscular injections of MVA.HIVconsv alone at a dose of 1x10^8 pfu.
Biologisk: MVA.HIVconsv low dose
Three intramuscular injections of MVA.HIVconsv alone at a dose of 1x10^8 pfu at week 0, 4 and 12.
Experimentell: High dose vaccinees
Individuals will receive three intramuscular injections of MVA.HIVconsv alone at a dose of 4x10^8 pfu.
Biologisk: MVA.HIVconsv high dose
Three intramuscular injections of MVA.HIVconsv alone at a dose of 4x10^8 pfu at week 0, 4 and 12.
Placebo-jämförare: Low dose placebo
Individuals will receive three intramuscular injections of low dose placebo
Övrig: Placebo low dose
Three intramuscular injections of placebo alone (200ul) at week 0, 4 and 12.
Placebo-jämförare: High dose placebo
Individuals will receive three intramuscular injections of high dose placebo
Övrig: Placebo high dose
Three intramuscular injections of placebo alone (800ul) at week 0, 4 and 12.

Vad mäter studien?

Primära resultatmått

Resultatmått
Tidsram
The proportion of volunteers who develop a grade 3 or 4 local or systemic reactions
Tidsram: Actively collected data throughout the study until 6 months after the last vaccination
Actively collected data throughout the study until 6 months after the last vaccination

Sekundära resultatmått

Resultatmått
Tidsram
A descriptive summary of grade 3 or 4 local and systemic events, including laboratory abnormalities
Tidsram: Actively collected data throughout the study until 6 months after the last vaccination
Actively collected data throughout the study until 6 months after the last vaccination
A descriptive summary of serious adverse events, including laboratory abnormalities
Tidsram: Actively collected data throughout the study until 6 months after the last vaccination
Actively collected data throughout the study until 6 months after the last vaccination
The proportion of volunteers who develop CD8+ T cell responses to a new HIV-1 epitope, as determined by IFN-γ ELISPOT assay
Tidsram: Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
The proportion of volunteers in whom the magnitude of CD8+ T cell responses to HIVconsv peptides increases by ≥ 3-fold, as determined by IFN-γ ELISPOT assay
Tidsram: Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Evaluation of the effect of MVA.HIVconsv vaccinations on viral suppressive capacity of CD8+ T cells in vitro, using a novel flow cytometric assay
Tidsram: Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Magnitude and phenotype, including but not limited to activation status, of HIV-1-specific CD8+ T cell populations identified by tetramer staining before and after vaccination, in selected volunteers with appropriate HLA class I alleles.
Tidsram: Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
PBMC will be stored for other exploratory assays to characterise vaccine-expanded T cell populations such as IL-10 secretion and CFSE proliferation assays.
Tidsram: Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Serum and plasma will be stored for investigation of binding and neutralising antibodies to vaccinia and of pro-inflammatory cytokines.
Tidsram: Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)
Screen (≤ day -28); Day 0; Day 14; Day 28; Day 42; Day 56; Day 84; Day 112; Day 182; Final visit (day 266 / early termination)

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

University of Oxford

Samarbetspartners

Medical Research Council

Utredare

  • Huvudutredare: Andrew McMichael, University of Oxford

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 december 2009

Primärt slutförande (Faktisk)

1 november 2013

Avslutad studie (Faktisk)

1 november 2013

Studieregistreringsdatum

Först inskickad

1 december 2009

Först inskickad som uppfyllde QC-kriterierna

1 december 2009

Första postat (Uppskatta)

3 december 2009

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

8 juni 2016

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

7 juni 2016

Senast verifierad

1 juni 2016

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • HIV-CORE 001

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

Data are presented in a manuscript submitted to a peer-reviewed journal.

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

Kliniska prövningar på HIV-1

Kliniska prövningar på MVA.HIVconsv low dose

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