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Evaluate Tolerability of a Recombinant DNA HIV-1 Vaccine in Healthy Adults

24 april 2017 uppdaterad av: St. Jude Children's Research Hospital

Evaluation of the Tolerability and Safety of a Recombinant HIV-1 Multi-Envelope DNA Plasmid Vaccine (EnvDNA) in Healthy Adults

This protocol will evaluate the safety and tolerability of the vaccine EnvDNA in healthy adults. DNA-based vaccines are being studied for the prevention of human immunodeficiency virus (HIV), malaria and hepatitis. DNA vaccines have been well tolerated in human studies to date. The vaccine that will be tested in this study was made from the information that the virus uses to make a small part of the HIV. This small part is called the envelope or coating around the virus. We hope the body will make an immune response against the HIV envelope coat. Our potential HIV DNA envelope vaccine is called EnvDNA.

Studieöversikt

Status

Avslutad

Intervention / Behandling

Detaljerad beskrivning

This is a research (investigational) study to find out about the safety of a new potential vaccine for HIV. This potential vaccine may eventually become a part of a sequence of three experimental vaccines that will be studied to see if they can help to protect people from HIV. HIV infection is the cause of AIDS (Acquired Immune Deficiency Syndrome). AIDS is one of the most serious viral infections we know. This study is being done to help us find an HIV vaccine that works.

The vaccine that will be tested in this study was made from the information that the virus uses to make a small part of the HIV. This small part is called the envelope or coating around the virus. Because only the information for this one part of the virus is used in the vaccine, the vaccine cannot cause HIV infection. We make the vaccine in a test tube. The vaccine is made up of DNA. DNA is like an instruction manual that cells use to make basic building blocks called proteins. This DNA has the information that cells will use to make the envelope coat of HIV. Once the DNA is injected intramuscularly, it should tell cells to make the envelope protein. We hope the body will make an immune response against the HIV envelope coat. Our potential HIV DNA envelope vaccine is called EnvDNA.

Studietyp

Interventionell

Inskrivning (Faktisk)

6

Fas

  • Fas 1

Kontakter och platser

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

Studieorter

    • Tennessee
      • Memphis, Tennessee, Förenta staterna, 38105
        • St. Jude Children's Research Hospital

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 40 år (Vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Healthy adults; age greater than 18 years, less than or equal to 40 years
  • HIV-1 negative as documented by negative ELISA and negative Western blot analysis within 30 days prior to immunization
  • Normal history and physical exam
  • Normal complete blood count and differential obtained within 60 days prior to immunization, and defined as:

    • hemoglobin greater than or equal to 12.0 gm/dl for females and greater than or equal to 14.0 gm/dl for males
    • white blood cell count greater than or equal to 3500 cells/mm3
    • platelet count between 150,000 and 550,000 cells/mm3
    • CD4+ T cell count greater than or equal to 400 cells/mm3 (if a single CD4+ T cell count <400 cells/mm3 is obtained, a repeat count will be performed and immunization will proceed if the repeat count is greater than or equal to 400 cells/mm3)
  • Anti-nuclear antibody titer <1:80 (by IFA) and negative anti-DNA antibody within 60 days prior to immunization
  • Negative for Hepatitis B surface antigen and Hepatitis C
  • AST and ALT within normal institutional limits obtained within 60 days prior to immunization
  • Serum creatinine, Na+, K+ and Cl- within normal institutional limits, obtained within 60 days prior to immunization
  • Serum creatine phosphokinase (CPK) within normal institutional limits obtained within 60 days prior to immunization
  • Not planning to become pregnant during study vaccinations and for three months after last vaccination
  • Availability for at least one year of follow-up

Exclusion Criteria:

  • History of immunosuppressive illness, chronic illness (e.g. asthma, diabetes, hypertension, bleeding diathesis, etc), or
  • Receiving therapy or prophylaxis for tuberculosis
  • Medical or psychiatric condition or occupational responsibilities which preclude subject compliance with the protocol. Specifically excluded are persons with a history of suicide attempts, recent suicidal ideation or who have past or present psychosis
  • Live attenuated vaccines within 60 days of study enrollment (Note: subunit or killed vaccines [e.g. influenza or pneumococcal] are not exclusionary, but should be given at least 2 weeks before or after HIV immunization)
  • Use of experimental agents within 30 days prior to study enrollment
  • Receipt of blood products or immunoglobulin in the past 6 months
  • Subjects with known allergy to the antibiotic kanamycin
  • Pregnancy at the time of vaccination (urine pregnancy test)
  • Nursing mother at the time of vaccination
  • Any member of the Investigator's laboratory program
  • Participation in previous HIV vaccine trial

Studieplan

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

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Övrig: 1
administered as 100 mcg of DNA in 1.5mL PBS every 28 days for 3 injections

Vad mäter studien?

Primära resultatmått

Resultatmått
Tidsram
To evaluate the tolerability and safety of the EnvDNA vaccine
Tidsram: 1 year
1 year

Sekundära resultatmått

Resultatmått
Tidsram
To characterize the kinetics, duration and magnitude of any HIV-envelope specific immune response elicited by EnvDNA
Tidsram: 1 year
1 year

Samarbetspartners och utredare

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

Utredare

  • Huvudutredare: Pat Flynn, MD, St. Jude Children's Research Hospital

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.

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 februari 2005

Primärt slutförande (Faktisk)

1 november 2009

Avslutad studie (Faktisk)

1 november 2009

Studieregistreringsdatum

Först inskickad

12 september 2005

Först inskickad som uppfyllde QC-kriterierna

12 september 2005

Första postat (Uppskatta)

16 september 2005

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

26 april 2017

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

24 april 2017

Senast verifierad

1 juni 2011

Mer information

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-infektioner

3
Prenumerera