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Safety and Immunogenicity of GPO Seasonal Trivalent Inactivated Influenza Vaccine in Healthy Thai Adults
A Phase I/II Randomized Double Blind Controlled Study to Evaluate the Safety and Immunogenicity of GPO Seasonal Trivalent Inactivated Split Virion Influenza Vaccine in Healthy Thai Adults Aged Between 18 Years to 49 Years
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
This is a double blind randomized study consisting of two phases - Phase I and Phase II. The same vaccine, a seasonal trivalent inactivated split virion influenza vaccine [A/California/7/2009, reassortant virus NYMC X-181 (H1N1), A/Victoria/210/2009, reassortant virus NYMC X-187 (H3N2), and B/Brisbane/60/2008, reassortant virus NYMC BX-35 virus strains] will be given in both Phase I and Phase II of the study.
The vaccine will be administered via the intramuscular route; the preferred injection site will be the deltoid of the non-dominant arm. After vaccination volunteers will remain at the clinic for at least 30 minutes to observe for any reactogenicity after immunization. Total follow-up is 90 days.
Blood specimens will be collected on Day 0 prior to vaccination, Day 21, Day 60, and day 90.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 2
- Fase 1
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Healthy
- Age 18-49 years old
- Having Thai ID card or equivalent
- All hematology, biochemistry and urine analysis are within normal range or of no clinical significance (not higher than 1.5 time of normal value without any clinical finding from history and physical examination)
- Able to read and write and sign written informed consent form or assent form.
Exclusion Criteria:
- Known history of egg allergy
- Having had recently influenza infection confirmed as H1N1, H3N2, or Flu B within 3 months preceding enrolment to the trial
- Vaccination against influenza in the past 6 months preceding enrolment to the trial
- History of bronchial asthma, chronic lung diseases, chronic rhinitis
- History of immunodeficiency state
- History of immunosuppression < 6 months prior to immunization
- History of anaphylactic or other allergic reactions to influenza vaccine or any vaccine component or excipient (e.g. gentamicin or thimerosal)
- Acute infectious with fever > 38 degree Celsius and noninfectious diseases (within 72 hours) preceding enrollment in the trial
- The volunteers who have been taking immunoglobulin products or have had a blood transfusion during past 3 months before the beginning of the experiment
- Participation in other research study
- Pregnancy or plan to become pregnant for 60 days after enrollment or breast feeding
- Current alcohol abuse or drug addiction that might interfere with the ability to comply with trial procedures
- Any condition that in the opinion of the investigator would pose a health risk to the subject if enrolled, or could interfere with the evaluation of the vaccine
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Preventie
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Dubbele
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Actieve vergelijker: an inactivated influenza vaccine
20 volunteers in phase I study and 200 volunteers in phase II study will receive a single dose of a seasonal trivalent inactivated split virion influenza vaccine [A/California/7/2009, reassortant virus NYMC X-181 (H1N1), A/Victoria/210/2009, reassortant virus NYMC X-187 (H3N2), and B/Brisbane/60/2008, reassortant virus NYMC BX-35 virus strains] will be administered via the intramuscular route; the preferred injection site will be the deltoid of the non-dominant arm.
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The vaccine will be administered via the intramuscular route; the preferred injection site will be the deltoid of the non-dominant arm.
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Placebo-vergelijker: Placebo
20 volunteers in phase I study and 100 volunteers in phase II study will receive a single dose of placebo will be administered via the intramuscular route; the preferred injection site will be the deltoid of the non-dominant arm.
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The placebo will be administered via the intramuscular route; the preferred injection site will be the deltoid of the non-dominant arm.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Number of Participants With Adverse Events
Tijdsspanne: 90 days
|
All Adverse Events during 90 days will be analysed in terms of percentage and relationship to study vaccine
|
90 days
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Number (Percentage) of Participants With Achieving Seroconversions or Significant Increase in Antihemagglutinin Antibody Titer.
Tijdsspanne: 90 days
|
Seroconversion is defined as a 4-fold rise in HAI titer in post-immunization serum relative to pre-immunization serum, or if pre-immunization serum had an undetectable titer (<1:10), attainment of a post-immunization titer of ≥1:40.
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90 days
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Geometric Mean of Immune Response at Every Time of Assessment
Tijdsspanne: 90 days
|
The analysis was performed only as intention-to-treat (ITT).
The antibody titer values were transformed into log10 titers for calculation of the GMT at every time of assessment (Days 0,21, 60 and 90)
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90 days
|
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Geometric Mean of Immune Response Increase > 2.5 From Baseline of H1N1,H3N2 and B/Brisbane/60/2008 Antibody Titer
Tijdsspanne: 90 days
|
The analysis was performed only as intention-to-treat (ITT).
The antibody titer values were transformed into log10 titers for calculation of the GMT at every time of assessment (Days 0, 21, 60 and 90).
Proportion of increased in GMT Titer > 2.5 at each time of assessment compared with baseline (Day 0) was reported both phase I and phase II
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90 days
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Punnee Pitisuttithum, Prof., Mahidol university
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- GPO Tri Fluvac Vaccine
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
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