Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

Evaluation of the Safety and Immune Response to an Investigational Dengue Type 1 Vaccine

31 december 2012 bijgewerkt door: National Institute of Allergy and Infectious Diseases (NIAID)

A Phase I Evaluation of the Safety and Immunogenicity of the rDEN1∆30 Dengue Serotype 1 Vaccine Given at a Single Dose of 101 PFU in Healthy Flavivirus-naïve Adult Subjects

Dengue viruses can cause dengue fever and other serious health conditions, primarily affecting people living in tropical regions of the world. There are four types of dengue virus, and infection with one does not offer protection against the others. This study will test whether a vaccine developed to prevent infection with dengue virus type 1 (DEN1) causes a response in people's immune system and is safe.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

The dengue virus causes approximately 50 million cases of dengue fever and 1.5 million cases of the more severe diseases dengue hemorrhagic fever (DHS) and dengue shock syndrome (DSS) every year. There are four subtypes of the virus, and infection with one offers no protection from infection by the others. In fact, most cases of DHS and DSS occur in people infected by more than one subtype. In areas of the world where multiple subtypes of dengue are common, vaccines must be developed against each of the subtypes of dengue virus. This study will examine the safety and immune response of an investigational vaccine for preventing infection with DEN1.

Participation in this study will last about 6 weeks. Participants will be randomly assigned to be injected with either the investigational study vaccine or a placebo. Participants will have a five in six chance of receiving the vaccine. The first study visit will take place on the vaccination day, on which participants will undergo a physical examination, blood draw, and pregnancy test, and then receive the vaccine. Participants will be given a thermometer and temperature card, and be told to record their temperature three times per day for 16 days after vaccination. Participants will come to follow-up visits every other day for the 16 days after vaccination, and then 3, 4, and 6 weeks after vaccination (Days 21, 28, and 42). Assessments completed during these visits will include a questionnaire about how the participant is feeling, pregnancy test, review of temperature cards, blood draw, and physical exam. Blood drawn will be analyzed to check participants' health, determine the amount of vaccine and antibodies in the blood, test markers in white blood cells and genes, and look for proteins that are important for fighting dengue infection.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

18

Fase

  • Fase 1

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Verenigde Staten
    • Vermont
      • Burlington, Vermont, Verenigde Staten, 05401
        • Fletcher Allen Health Care (FAHC) General Clinical Research Center (GCRC)
      • Burlington, Vermont, Verenigde Staten, 05401
        • University of Vermont Vaccine Testing Center

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar tot 50 jaar (Volwassen)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • In good general health as determined by physical examination, laboratory screening, and review of medical history
  • Available for the duration of the study, including approximately 6 weeks post-vaccination
  • Female participants of childbearing potential must be willing to use effective contraception for the duration of the trial

Exclusion Criteria:

  • Currently breast-feeding or pregnant
  • Exhibits evidence of clinically significant neurologic, cardiac, pulmonary, hepatic, rheumatologic, autoimmune, or renal disease by history, physical examination, and/or laboratory studies
  • Presence of a behavioral, cognitive, or psychiatric disease that affects the ability of the participant to understand and cooperate with the requirements of the study protocol
  • Has screening laboratory values of Grade 1 or above for absolute neutrophil count (ANC), ALT, and serum creatinine, as defined in this protocol
  • Presence of any condition that would jeopardize the safety or rights of the participant or would render the participant unable to comply with the protocol
  • Significant alcohol or drug abuse in the past 12 months which has caused medical, occupational, or family problems, as indicated by participant history
  • History of a severe allergic reaction or anaphylaxis
  • Severe asthma (emergency room visit or hospitalization within the last 6 months)
  • Presence of HIV infection, determined by screening and confirmatory assays
  • Presence of hepatitis C virus (HCV) infection, determined by screening and confirmatory assays
  • Presence of hepatitis B virus (HBV) infection, determined by hepatitis B surface antigen (HBsAg) screening
  • Presence of any known immunodeficiency syndrome
  • Uses anticoagulant medications
  • Has used corticosteroids (excluding topical or nasal) or immunosuppressive drugs within 42 days prior to or following vaccination. An immunosuppressive dose of corticosteroids is defined as greater than or equal to 10 mg prednisone equivalent per day for greater than or equal to 14 days.
  • Has received a live vaccine within 28 days or a killed vaccine within 14 days prior to vaccination or anticipated receipt of any vaccine during the 42 days following vaccination
  • Has no spleen
  • Received blood products within the past 6 months, including transfusions or immunoglobulin or anticipated receipt of any blood products or immunoglobulin during the 42 days following vaccination
  • History or serologic evidence of previous dengue virus infection or other flavivirus infection (e.g., yellow fever virus, St. Louis encephalitis, West Nile virus)
  • Has received a flavivirus vaccine (licensed or experimental)
  • Anticipates receipt of any investigational agent in the 42 days before or after vaccination
  • Participant has definite plans to travel to a dengue endemic area during the study

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Preventie
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verviervoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: DEN1 Vaccine
Participants will receive a single dose of investigational vaccine for dengue virus subtype 1.
Biologisch: Investigational Vaccine for DEN1
Subcutaneous injection in upper arm of vaccine at dose of 10 plaque-forming units (PFU)
Andere namen:
  • rDEN1∆30 vaccine
Placebo-vergelijker: Placebo
Participants will receive a single dose of placebo vaccine.
Ander: Placebo injection
Subcutaneous injection of placebo

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Tijdsspanne
Frequency of vaccine-related adverse events (AEs), as classified by both severity and seriousness, through active and passive surveillance
Tijdsspanne: Measured throughout study
Measured throughout study
Immunogenicity to dengue virus subtype one (DEN1), as assessed by neutralizing antibody titers
Tijdsspanne: Measured 4 and 6 weeks after vaccination
Measured 4 and 6 weeks after vaccination

Secundaire uitkomstmaten

Uitkomstmaat
Tijdsspanne
Frequency, quantity, and duration of viremia following vaccination
Tijdsspanne: Measured every other day after vaccination for 16 days, and on Days 21, 28, and 42
Measured every other day after vaccination for 16 days, and on Days 21, 28, and 42
Number of vaccinees infected with DEN1, defined as recovery of vaccine virus from the blood or serum of a participant and/or by seroconversion to DEN1
Tijdsspanne: Measured at study completion
Measured at study completion
Comparison of the infectivity rates, safety, and immunogenicity of a single dose of DEN1 vaccine to those rates of previous clinical trials
Tijdsspanne: Measured at study completion
Measured at study completion

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

National Institute of Allergy and Infectious Diseases (NIAID)

Onderzoekers

  • Hoofdonderzoeker: Anna Durbin, MD, CIR, Johns Hopkins University

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 april 2010

Primaire voltooiing (Werkelijk)

1 mei 2010

Studie voltooiing (Werkelijk)

1 juni 2010

Studieregistratiedata

Eerst ingediend

8 maart 2010

Eerst ingediend dat voldeed aan de QC-criteria

8 maart 2010

Eerst geplaatst (Schatting)

10 maart 2010

Updates van studierecords

Laatste update geplaatst (Schatting)

3 januari 2013

Laatste update ingediend die voldeed aan QC-criteria

31 december 2012

Laatst geverifieerd

1 december 2012

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • CIR 253

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

product vervaardigd in en geëxporteerd uit de V.S.

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Abonneren