A Safety and Immunogenicity Trial With an Adjuvanted Tuberculosis (TB) Subunit Vaccine in Purified Protein Derivative (PPD) Positive Volunteers (THYB-02)
A Safety and Immunogenicity Phase 1 Trial With an Adjuvanted TB Subunit Vaccine (Ag85B-ESAT-6 + IC31)Administered in PPD Positive Volunteers at 0 and 2 Months
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 1
Kontakter og lokationer
Studiesteder
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RC Leiden
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Leiden, RC Leiden, Holland, 2300
- Leiden University Medical Centre
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-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Male and female between 18 and 55 years old
- BCG group: Known to be BCG-vaccinated over 2 years before, PPD positive (range 6-15 mm or any documented value between 6-15 mm on medical file in the past), with no active, chronic or past TB disease as confirmed by chest X ray, negative QuantiFERON-TB Gold In Tube test and negative 6-day lymphocyte tests.
- Infection group: Known to be treated for latent TB, PPDpositive (equal or over 10 mm or documented equal or over 10 mm positive on medical file in the past), previously TB infected but with no active disease confirmed by chest X ray, may have received chemoprophylaxis but with no TB treatment/chemoprophylaxis within the preceding 2 years, positive QuantiFERON-TB Gold In Tube test and/or positive 6-day lymphocyte test.
- Healthy based on medical examination/history at the inclusion
- Signed informed consent
- Prepared to grant authorized persons access to the medical records
- The volunteer is likely to comply with instructions
Exclusion Criteria:
- Granulomatous disease (by chest X-ray)
- Vaccinated with live vaccine 3 months before first vaccination
- Administration of immune modulating drugs (steroids, immunosuppressive drugs or immunoglobulins) 3 months before the first vaccination
- HBV, HCV or HIV sero-positive
- Participation in other clinical trials
- Known hypersensitivity to any of the vaccine components
- Laboratory parameters outside of normal range judged by PI to be clinically relevant
- Pregnant women/planned pregnancy and/or breastfeeding within the trial period
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: Latent TB infection group
The latent TB group will receive two injections of 50 microgram antigen + adjuvant (500 nmol KLK + 20 nmol ODN1a)two months apart.
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o,5 mL suspension for injection x 2 with 2 months interval
Andre navne:
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Eksperimentel: BCG vaccinated group
The BCG vaccinated group will receive two vaccinations of 50 microgram antigen + adjuvant (500 nmol KLK + 20 nmol ODN1a)two months apart
|
o,5 mL suspension for injection x 2 with 2 months interval
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Physical examination. Local adverse events.Systemic adverse events. Laboratory safety tests including urine safety tests.
Tidsramme: From first vaccination until 8 months after the first vaccination
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From first vaccination until 8 months after the first vaccination
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Detection by ELISPOT of IFNgamma spot-forming cells in PBMCs. Detection by ELISA of IFNgamma production in supernatants of PBMC. Detection by ELISA of IgG antibodies in serum/plasma. Detection by Elisa of TNFalfa and IFNgamma in serum
Tidsramme: From first vaccination until 8 months after first vaccination
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From first vaccination until 8 months after first vaccination
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Jaap van Dissel, MD, Prof., Leiden University Medical Centre
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- THYB-02
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