A Phase 4 Post-marketing Study of Intramuscular Injections of BLB-750 in Healthy Adult Subjects
An Open-label Phase 4 Study to Evaluate the Immunogenicity and Safety of Intramuscular Injections of BLB-750 in Healthy Adult Subjects
Sponsor study identifier
Secondary identifiers
OTHER · WHO
REGISTRY · JapicCTI
interventional
55
1 country
1
Study Start
January 12, 2018
Actual (reported)Primary Completion
February 28, 2018
Actual (reported)Study Completion
February 28, 2018
Actual (reported)The purpose of this study is to evaluate the immunogenicity and safety of two intramuscular vaccinations with BLB-750 in healthy Japanese adults.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
February 28, 2018
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
December 7, 2017
Actual (reported)December 12, 2017
Actual (reported)January 12, 2018
Actual (reported)February 28, 2018
Actual (reported)February 28, 2018
Actual (reported)July 29, 2019
Actual (reported)Seroprotection Rate as Measured by Single Radial Hemolysis (SRH) Antibody Titer for the Vaccine Strain at 21 Days After the Second Vaccination
Seroprotection rate was measured by SRH antibody titer for BLB-750 Qinghai RG strain at 21 days after second vaccination. Seroprotection rate as SRH antibody titer is defined as the percentage of participants with SRH antibody titer ≥25 mm\^2.
Day 43 (21 days after the second vaccination)
Seroconversion Rate as Measured by SRH Antibody Titer for the Vaccine Strain at 21 Days After the Second Vaccination
Seroconversion rate was measured by SRH antibody titer for BLB-750 Qinghai RG strain at 21 days after second vaccination. Seroconversion rate as SRH antibody titer is defined as the percentage of participants with a 50% or more increase in SRH antibody titer from baseline for those who have a baseline value \>4 mm\^2 or SRH antibody titer ≥25 mm\^2 for those who have a baseline value ≤4 mm\^2.
Day 43 (21 days after the second vaccination)
Geometric Mean Fold Increase (GMFI) in SRH Antibody Titer From Baseline for the Vaccine Strain at 21 Days After the Second Vaccination
GMFI was measured as geometric mean fold change from baseline in SRH antibody titer for BLB-750 Qinghai RG strain at 21 days after second vaccination.
Day 43 (21 days after the second vaccination)
Seroprotection Rate as Measured by SRH Antibody Titer for the Vaccine Strain at 21 Days After the First Vaccination
Day 22 (21 days after the first vaccination)
Seroconversion Rate as Measured by SRH Antibody Titer for the Vaccine Strain at 21 Days After the First Vaccination
Day 22 (21 days after the first vaccination)
GMFI in SRH Antibody Titer From Baseline for the Vaccine Strain at 21 Days After the First Vaccination
Day 22 (21 days after the first vaccination)
Geometric Mean Titer (GMT) of SRH Antibody Titer for the Vaccine Strain at 21 Days After Each Vaccination
Day 22, and Day 43 (21 days after the first and the second vaccination)
Number of Participants Reporting Who Had One or More Treatment-emergent Adverse Event (TEAE)
Up to Day 43
Two doses of BLB-750 Qinghai reverse genetics (RG) strain at a vaccination dose of 0.5 mL (HA antigen level of 7.5 µg per strain) will be injected into the upper arm muscle (the deltoid muscle) at 3-week intervals (Day 1 and Day 22) in a treatment period of 43 days.
BLB-750 Injection
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Sekino Rinsho Yakuri Clinic
Toshima-ku, Tokyo, Japan
Study Director
Takeda
55 participants (actual enrollment reported by the registry).
First Submitted
December 7, 2017
First Posted
December 12, 2017
Study Start
January 12, 2018
Actual (reported)Contact the study team to confirm eligibility.
Primary Completion
February 28, 2018
Actual (reported)Study Completion
February 28, 2018
Actual (reported)Last Updated
July 29, 2019
Results First Posted
July 29, 2019
Record last verified: 2019-06
Takeda makes patient-level, de-identified data sets and associated documents available for all interventional studies after applicable marketing approvals and commercial availability have been received (or program is completely terminated), an opportunity for the primary publication of the research and final report development has been allowed, and other criteria have been met as set forth in Takeda's Data Sharing Policy (see www.TakedaClinicalTrials.com for details). To obtain access, researchers must submit a legitimate academic research proposal for adjudication by an independent review panel, who will review the scientific merit of the research and the requestor's qualifications and conflict of interest that can result in potential bias. Once approved, qualified researchers who sign a data sharing agreement are provided access to these data in a secure research environment.
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Source: ClinicalTrials.gov.
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