Development of an Intranasal Proteosome Influenza Vaccine
Study to Determine if Intranasal Proteosome-Adjuvanted Trivalent Influenza Vaccine is Safe, Immunogenic and Efficacious in the Influenza Human Viral Challenge Model
Studieöversikt
Status
Betingelser
Detaljerad beskrivning
A Proteosome-adjuvanted trivalent inactivated influenza vaccine (P-TIV) administered intra-nasally was shown to be effective, safe, well tolerated, immunogenic - in both systemic and mucosal compartments - and effective at preventing influenza illness.
In two separate studies using the Human Viral Challenge Model, subjects were selected for susceptibility to A/Panama/2007/1999 (H3N2) virus and then dosed with one of three regimens: (A/New Caledonia/20/1999 (H1N1), A/Panama/2007/1999 (H3N2), B/Victoria/504/2000 or B/Shangdong/7/1997) or placebo via a nasal spray. One or two doses were given, 14 days apart, before subjects were challenged with ~8.5 x 105 EID¬50 of A/Panama/2007/1999 (H3N2) virus. Immune responses to the vaccine antigens were measured, namely serum IgG (via the aemagglutination inhibition assay (HAI)) and nasal wash secretory IgA (sIgA) antibodies (via ELISA). Viral titres in nasal washes and symptoms of influenza illness were assessed after viral challenge and compared.
Studietyp
Inskrivning (Faktisk)
Fas
- Fas 2
- Fas 1
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Young healthy adults as determined by medical history, physical examination, serology (HIV and Hepatitis B and C) and clinical laboratory tests.
- Female subjects were required to provide of a history of reliable contraceptive practice.
- Susceptibility to A/Panama/2007/1999 (H3N2) (a serum reciprocal HAI titre ≤10) was confirmed at screening. -
Exclusion Criteria:included;
- asthma,
- hypersensitivity to mercurials or chicken eggs,
- anatomic or neurologic abnormality impairing the gag reflex or contributing to aspiration, * chronic nasopharyngeal complaints,
- abnormal electrocardiogram (ECG),
- febrile illness or significant symptoms of upper respiratory infection on the day of vaccination or between admission to quarantine and administration of the challenge inoculum.
- Subjects using medication or other products for rhinitis or nasal congestion,
- Subject who had received systemic glucocorticoids within 1 month, or cytotoxic or immunosuppressive drugs within 6 months of the study start.
- Subjects agreed not to smoke during the quarantine phase.
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Förebyggande
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Dubbel
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Placebo-jämförare: Placebo
|
Intranasal vaccine Protesomal Vaccine
Andra namn:
|
|
Experimentell: Protesomal Vaccine 1 x 30 µg
|
Experimental: Protesomal Vaccine 1 x 30 µg
|
|
Experimentell: Protesomal Vaccine 2 x 30 µg
|
Experimental: Protesomal Vaccine 2 x 30 µg
|
|
Experimentell: Protesomal Vaccine 2 x 15 µg
|
Experimental: Protesomal Vaccine 2 x 15 µg
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
|---|---|
|
Reduction in Influenza Like Illness in those with laboratory confirmed influenza
Tidsram: Within the duration of infection, approx 10 days
|
Within the duration of infection, approx 10 days
|
Samarbetspartners och utredare
Sponsor
Samarbetspartners
Utredare
- Huvudutredare: Rob Lambkin-Williams, PhD, PI
Publikationer och användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- IDB 004 IDB 005
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