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Phase 3 Study of BK1310 in Healthy Infants

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02992925
Enrollment
370
Registered
2016-12-14
Start date
2016-11-30
Completion date
2018-11-30
Last updated
2026-01-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Immunization; Infection

Keywords

Haemophilus influenza type b, Adsorbed Diphteria-purified Pertussis-Tetanus-Inactivate poliovirus combined vaccine, Hib, DPT-IPV

Brief summary

The purpose of this study is to: * (cohort 1) evaluate safety and immunogenicity (Haemophilus influenzae type b, Hib) of BK1310. * (cohort 2) evaluate efficacy and safety of BK1310 using ActHIB® and Tetrabik as a control in healthy infants.

Detailed description

\<Cohort 1\> * Arm: BK1310-High. Intervention: DPT-IPV-Hib-High(Combined Vaccine) 0.5mL, subcutaneous injection, 3 times with the 3-8weeks intervals then an additional injection after 6-13 months. * Arm: BK1310-Low. Intervention: DPT-IPV-Hib-Low(Combined Vaccine) 0.5mL, subcutaneous injection, 3 times with the 3-8weeks intervals then an additional injection after 6-13 months. \<Cohort 2\> * Arm: BK1310-High or Low. Intervention: DPT-IPV-Hib-High(Combined Vaccine) or DPT-IPV-Hib-Low(Combined Vaccine) 0.5mL, subcutaneous injection, 3 times with the 3-8weeks intervals. * Arm: ActHIB® and Tetrabik. Intervention: Hib vaccine and DPT-IPV 0.5mL, subcutaneous injection, 3 times with the 3-8weeks intervals.

Interventions

BIOLOGICALDPT-IPV-Hib-Low(Combined Vaccine)
BIOLOGICALHib vaccine
BIOLOGICALDPT-IPV
BIOLOGICALDPT-IPV-Hib-High(Combined Vaccine)

Sponsors

The Research Foundation for Microbial Diseases of Osaka University
CollaboratorOTHER
Tanabe Pharma Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
2 Months to 43 Months
Healthy volunteers
Yes

Inclusion criteria

* Healthy infants aged ≥2 and \<43 months at the first vaccination of the study drug (recommended: ≥2 and \<7 months). Those who are applicable of the following conditions must be carefully observed before the enrollment: infants with known underlying disease such as cardiovascular disease, renal disease, hepatic disease, blood dyscrasia, respiratory disease or developmental disorder. Infants who developed fever within 2 days after any previous vaccination. Infants with history of convulsions. * Written informed consent is obtained from a legal guardian (parent)

Exclusion criteria

* With past diagnosis of immunodeficiency or currently under immunosuppressive treatment * Have close relatives (the third degree of kinship) diagnosed with congenital immunodeficiency * Possibility of anaphylaxis due to food or pharmaceuticals * With experience of Hib infection, diphtheria, pertussis, tetanus or acute poliomyelitis * With experience of Hib, diphteria, pertussis, tetanus or polio vaccination. * Administered a live vaccine within 27 days before the first vaccination of the study drug, or inactivated vaccine or toxoid within 6 days before vaccination * Administered transfusion, immunosuppressant (excluding drugs for external use), or immunoglobulin formulation * Administered corticosteroid 2 mg/kg per day or more as prednisolone (excluding drugs for external use) * Participated in other studies within 12 weeks before obtaining consent * With the gestational age \<37 weeks or weighed less than 2500 grams at birth. * Considered to be not eligible by the principal investigators (sub-investigators) of the enrollment.

Design outcomes

Primary

MeasureTime frameDescription
Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRP4 weeks after the primary immunization (Visit 4)Antibody prevalence rate is defined as the percentage of participants whose criteria of each antibody titer: Anti-diphtheria antibody concentrations: \>=0.1 IU/mL, Anti-PT antibody concentrations: \>=10.0 EU/mL, Anti-FHA antibody concentrations: \>=10.0 EU/mL, Anti-tetanus antibody concentrations: \>=0.01 IU/mL, Anti-poliovirus serotype 1, 2 and 3, antibody titers (fold) \>=8

Secondary

MeasureTime frameDescription
Geometric Mean Antibody Titer of Anti-PRP Antibody4 weeks after the primary immunization (Visit 4)
Anti-PRP Antibody Prevalence Rate With 1 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody4 weeks after the booster dose (Visit 6)
Geometric Mean Antibody Titer Against Diphtheria Toxin4 weeks after the primary immunization (Visit 4)
Geometric Mean Antibody Titer Against Pertussis (PT)4 weeks after the primary immunization (Visit 4)
Anti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody4 weeks after the primary immunization (Visit 4)
Geometric Mean Antibody Titer Against Tetanus Toxin4 weeks after the primary immunization (Visit 4)
Fold Change in Geometric Mean Antibody Titer Against Polio VirusBaseline and 4 weeks after the primary immunization (Visit 4)
Antibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus4 weeks after the booster dose (Visit 6)Antibody prevalence rate is defined as the percentage of participants whose criteria of each antibody titer: Anti-diphtheria antibody concentrations: \>=0.1 IU/mL, Anti-PT antibody concentrations: \>=10.0 EU/mL, Anti-FHA antibody concentrations: \>=10.0 EU/mL, Anti-tetanus antibody concentrations: \>=0.01 IU/mL, Anti-poliovirus serotype 1,2 and 3 antibody titers (fold) \>=8
Geometric Mean Antibody Titer Against Pertussis (FHA)4 weeks after the primary immunization (Visit 4)

Countries

Japan

Participant flow

Participants by arm

ArmCount
BK1310-High
(Cohort 1) DPT-IPV-Hib-High(Combined Vaccine) 0.5mL, subcutaneous injection, 3 times with the 3-8weeks intervals then an additional injection after 6-13 months.
15
BK1310-Low
(Cohort 1) DPT-IPV-Hib-Low(Combined Vaccine) 0.5mL, subcutaneous injection, 3 times with the 3-8weeks intervals then an additional injection after 6-13 months.
15
BK1310
(Cohort 2) DPT-IPV-Hib-High(Combined Vaccine) 0.5mL, subcutaneous injection, 3 times with the 3-8weeks intervals.
170
ActHIB® and Tetrabik (Control)
(Cohort 2) Hib vaccine and DPT-IPV 0.5mL, subcutaneous injection, 3 times with the 3-8weeks intervals.
165
Total365

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Cohort 2Physician Decision0010
Cohort 2Withdrawal by parent/guardian0002

Baseline characteristics

CharacteristicBK1310-HighBK1310-LowBK1310ActHIB® and Tetrabik (Control)Total
Age, Customized
>=2 and <3 months
7 Participants6 Participants154 Participants145 Participants312 Participants
Age, Customized
>=3 months
8 Participants9 Participants16 Participants20 Participants53 Participants
Race/Ethnicity, Customized
Asian (Japanese)
15 Participants15 Participants170 Participants165 Participants365 Participants
Sex: Female, Male
Female
8 Participants8 Participants86 Participants79 Participants181 Participants
Sex: Female, Male
Male
7 Participants7 Participants84 Participants86 Participants184 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 150 / 150 / 1710 / 169
other
Total, other adverse events
15 / 1515 / 15162 / 171163 / 169
serious
Total, serious adverse events
1 / 150 / 158 / 1715 / 169

Outcome results

Primary

Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRP

Antibody prevalence rate is defined as the percentage of participants whose criteria of each antibody titer: Anti-diphtheria antibody concentrations: \>=0.1 IU/mL, Anti-PT antibody concentrations: \>=10.0 EU/mL, Anti-FHA antibody concentrations: \>=10.0 EU/mL, Anti-tetanus antibody concentrations: \>=0.01 IU/mL, Anti-poliovirus serotype 1, 2 and 3, antibody titers (fold) \>=8

Time frame: 4 weeks after the primary immunization (Visit 4)

Population: For antibody analysis at Visit 4, number of subjects decreased from 370 to 365. BK1310 group: due to physician decision (n=1).Control group: due to withdrawal by parent/guardian (n=2) and deviation in blood collection timing (n=2). In control group number of subjects further decreased due to insufficient sample volume (diphtheria: n=2, PT: n=1, FHA: n=1, tetanus: n=1, polio serotype1: n=5, polio serotype2: n=4, polio serotype3: n=4)

ArmMeasureGroupValue (NUMBER)
BK1310-HighAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against anti-PRP with 1 μg/mL or higher100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against diphtheria toxin100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against pertussis (PT)100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against pertussis (FHA)100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against tetanus toxin100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 1100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 2100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 3100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 1100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against tetanus toxin100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against diphtheria toxin100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 3100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 2100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against pertussis (FHA)100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against pertussis (PT)100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against anti-PRP with 1 μg/mL or higher100.0 percentage of participants
BK1310Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 2100.0 percentage of participants
BK1310Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against pertussis (PT)99.4 percentage of participants
BK1310Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against pertussis (FHA)97.6 percentage of participants
BK1310Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against tetanus toxin100.0 percentage of participants
BK1310Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 1100.0 percentage of participants
BK1310Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 3100.0 percentage of participants
BK1310Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against anti-PRP with 1 μg/mL or higher100.0 percentage of participants
BK1310Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against diphtheria toxin97.6 percentage of participants
ActHIB® and Tetrabik (Control)Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against pertussis (PT)100.0 percentage of participants
ActHIB® and Tetrabik (Control)Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against pertussis (FHA)99.4 percentage of participants
ActHIB® and Tetrabik (Control)Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against diphtheria toxin98.8 percentage of participants
ActHIB® and Tetrabik (Control)Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against anti-PRP with 1 μg/mL or higher93.3 percentage of participants
ActHIB® and Tetrabik (Control)Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against tetanus toxin100.0 percentage of participants
ActHIB® and Tetrabik (Control)Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 3100.0 percentage of participants
ActHIB® and Tetrabik (Control)Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 2100.0 percentage of participants
ActHIB® and Tetrabik (Control)Antibody Prevalence Rate Against Anti-PRP With 1 μg/mL or Higher, Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Anti-PRPAntibody prevalence rate against polio virus serotype 1100.0 percentage of participants
Secondary

Antibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus

Antibody prevalence rate is defined as the percentage of participants whose criteria of each antibody titer: Anti-diphtheria antibody concentrations: \>=0.1 IU/mL, Anti-PT antibody concentrations: \>=10.0 EU/mL, Anti-FHA antibody concentrations: \>=10.0 EU/mL, Anti-tetanus antibody concentrations: \>=0.01 IU/mL, Anti-poliovirus serotype 1,2 and 3 antibody titers (fold) \>=8

Time frame: 4 weeks after the booster dose (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureGroupValue (NUMBER)
BK1310-HighAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against pertussis (FHA)100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against polio virus serotype 1100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against pertussis (PT)100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against polio virus serotype 2100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against tetanus toxin100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against polio virus serotype 3100.0 percentage of participants
BK1310-HighAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against diphtheria toxin100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against polio virus serotype 3100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against diphtheria toxin100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against pertussis (PT)100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against pertussis (FHA)100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against tetanus toxin100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against polio virus serotype 1100.0 percentage of participants
BK1310-LowAntibody Prevalence Rate Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio Virus, Defined as the Percentage of Participants With the Antibody Against Diphtheria Toxin, Pertussis, Tetanus Toxin, and Polio VirusAntibody prevalence rate against polio virus serotype 2100.0 percentage of participants
Secondary

Anti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody

Time frame: 4 weeks after the primary immunization (Visit 4)

Population: For antibody analysis at Visit 4, number of subjects decreased from 370 to 365. BK1310 group: due to physician decision (n=1).Control group: due to withdrawal by parent/guardian (n=2) and deviation in blood collection timing (n=2).

ArmMeasureValue (NUMBER)
BK1310-HighAnti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody100.0 percentage of participants
BK1310-LowAnti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody100.0 percentage of participants
BK1310Anti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody100.0 percentage of participants
ActHIB® and Tetrabik (Control)Anti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody100.0 percentage of participants
Secondary

Anti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody

Time frame: 4 weeks after the booster dose (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureValue (NUMBER)
BK1310-HighAnti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody100.0 percentage of participants
BK1310-LowAnti-PRP Antibody Prevalence Rate With 0.15 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody100.0 percentage of participants
Secondary

Anti-PRP Antibody Prevalence Rate With 1 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody

Time frame: 4 weeks after the booster dose (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureValue (NUMBER)
BK1310-HighAnti-PRP Antibody Prevalence Rate With 1 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody100.0 percentage of participants
BK1310-LowAnti-PRP Antibody Prevalence Rate With 1 μg/mL or Higher, Defined as the Percentage of Participants With the Anti-PRP Antibody100.0 percentage of participants
Secondary

Fold Change in Geometric Mean Antibody Titer Against Polio Virus

Time frame: Baseline and 4 weeks after the primary immunization (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
BK1310-HighFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 14597.60 fold change
BK1310-HighFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 27822.06 fold change
BK1310-HighFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 34815.04 fold change
BK1310-LowFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 11910.85 fold change
BK1310-LowFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 26501.99 fold change
BK1310-LowFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 34096.00 fold change
Secondary

Fold Change in Geometric Mean Antibody Titer Against Polio Virus

Time frame: Baseline and 4 weeks after the primary immunization (Visit 4)

Population: For antibody analysis at Visit 4, number of subjects decreased from 370 to 361. BK1310 group: due to physician decision (n=1). Control group: due to withdrawal by parent/guardian (n=2), deviation in blood collection timing (n=2), insufficient sample volume (n=4). In control group number of subjects further decreased due to insufficient sample volume (polio serotype1: n=1)

ArmMeasureGroupValue (GEOMETRIC_MEAN)
BK1310-HighFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 1933.60 fold change
BK1310-HighFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 3851.19 fold change
BK1310-HighFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 21824.56 fold change
BK1310-LowFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 1588.13 fold change
BK1310-LowFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 31320.32 fold change
BK1310-LowFold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 21955.52 fold change
BK1310Fold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 22137.58 fold change
BK1310Fold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 1742.01 fold change
BK1310Fold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 31430.55 fold change
ActHIB® and Tetrabik (Control)Fold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 1885.67 fold change
ActHIB® and Tetrabik (Control)Fold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 31551.43 fold change
ActHIB® and Tetrabik (Control)Fold Change in Geometric Mean Antibody Titer Against Polio VirusGeometric mean antibody titer against polio virus serotype 21978.66 fold change
Secondary

Geometric Mean Antibody Titer Against Diphtheria Toxin

Time frame: 4 weeks after the primary immunization (Visit 4)

Population: For antibody analysis at Visit 4, number of subjects decreased from 370 to 365. BK1310 group: due to physician decision (n=1).Control group: due to withdrawal by parent/guardian (n=2) and deviation in blood collection timing (n=2). In control group number of subjects further decreased due to insufficient sample volume (diphtheria: n=2)

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer Against Diphtheria Toxin1.1640 IU/mL
BK1310-LowGeometric Mean Antibody Titer Against Diphtheria Toxin0.8058 IU/mL
BK1310Geometric Mean Antibody Titer Against Diphtheria Toxin0.8767 IU/mL
ActHIB® and Tetrabik (Control)Geometric Mean Antibody Titer Against Diphtheria Toxin0.7010 IU/mL
Secondary

Geometric Mean Antibody Titer Against Diphtheria Toxin

Time frame: 4 weeks after the booster dose (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer Against Diphtheria Toxin12.9090 IU/mL
BK1310-LowGeometric Mean Antibody Titer Against Diphtheria Toxin10.2457 IU/mL
Secondary

Geometric Mean Antibody Titer Against Pertussis (FHA)

Time frame: 4 weeks after the booster dose (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer Against Pertussis (FHA)122.20 EU/mL
BK1310-LowGeometric Mean Antibody Titer Against Pertussis (FHA)85.52 EU/mL
Secondary

Geometric Mean Antibody Titer Against Pertussis (FHA)

Time frame: 4 weeks after the primary immunization (Visit 4)

Population: For antibody analysis at Visit 4, number of subjects decreased from 370 to 365. BK1310 group: due to physician decision (n=1).Control group: due to withdrawal by parent/guardian (n=2) and deviation in blood collection timing (n=2). In control group number of subjects further decreased due to insufficient sample volume (FHA: n=1)

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer Against Pertussis (FHA)67.41 EU/mL
BK1310-LowGeometric Mean Antibody Titer Against Pertussis (FHA)49.99 EU/mL
BK1310Geometric Mean Antibody Titer Against Pertussis (FHA)57.59 EU/mL
ActHIB® and Tetrabik (Control)Geometric Mean Antibody Titer Against Pertussis (FHA)83.64 EU/mL
Secondary

Geometric Mean Antibody Titer Against Pertussis (PT)

Time frame: 4 weeks after the booster dose (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer Against Pertussis (PT)230.34 EU/mL
BK1310-LowGeometric Mean Antibody Titer Against Pertussis (PT)223.85 EU/mL
Secondary

Geometric Mean Antibody Titer Against Pertussis (PT)

Time frame: 4 weeks after the primary immunization (Visit 4)

Population: For antibody analysis at Visit 4, number of subjects decreased from 370 to 365. BK1310 group: due to physician decision (n=1).Control group: due to withdrawal by parent/guardian (n=2) and deviation in blood collection timing (n=2). In control group number of subjects further decreased due to insufficient sample volume (PT: n=1)

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer Against Pertussis (PT)208.80 EU/mL
BK1310-LowGeometric Mean Antibody Titer Against Pertussis (PT)180.78 EU/mL
BK1310Geometric Mean Antibody Titer Against Pertussis (PT)175.35 EU/mL
ActHIB® and Tetrabik (Control)Geometric Mean Antibody Titer Against Pertussis (PT)184.17 EU/mL
Secondary

Geometric Mean Antibody Titer Against Tetanus Toxin

Time frame: 4 weeks after the primary immunization (Visit 4)

Population: For antibody analysis at Visit 4, number of subjects decreased from 370 to 365. BK1310 group: due to physician decision (n=1).Control group: due to withdrawal by parent/guardian (n=2) and deviation in blood collection timing (n=2). In control group number of subjects further decreased due to insufficient sample volume (tetanus: n=1)

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer Against Tetanus Toxin0.5320 IU/mL
BK1310-LowGeometric Mean Antibody Titer Against Tetanus Toxin0.4032 IU/mL
BK1310Geometric Mean Antibody Titer Against Tetanus Toxin0.4950 IU/mL
ActHIB® and Tetrabik (Control)Geometric Mean Antibody Titer Against Tetanus Toxin0.2807 IU/mL
Secondary

Geometric Mean Antibody Titer Against Tetanus Toxin

Time frame: 4 weeks after the booster dose (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer Against Tetanus Toxin1.1670 IU/mL
BK1310-LowGeometric Mean Antibody Titer Against Tetanus Toxin1.0640 IU/mL
Secondary

Geometric Mean Antibody Titer of Anti-PRP Antibody

Time frame: 4 weeks after the booster dose (Visit 6)

Population: Only subjects in cohort 1 were analyzed. Visit 6 was not conducted in Cohort 2(Arm;BK-1310,ActHIB® and Tetrabik), and the data of Cohort 2 were not collected. Therefore, no data of Cohort 2 are available.

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer of Anti-PRP Antibody69.937 µg/mL
BK1310-LowGeometric Mean Antibody Titer of Anti-PRP Antibody54.333 µg/mL
Secondary

Geometric Mean Antibody Titer of Anti-PRP Antibody

Time frame: 4 weeks after the primary immunization (Visit 4)

Population: For antibody analysis at Visit 4, number of subjects decreased from 370 to 365. BK1310 group: due to physician decision (n=1).Control group: due to withdrawal by parent/guardian (n=2) and deviation in blood collection timing (n=2).

ArmMeasureValue (GEOMETRIC_MEAN)
BK1310-HighGeometric Mean Antibody Titer of Anti-PRP Antibody17.613 µg/mL
BK1310-LowGeometric Mean Antibody Titer of Anti-PRP Antibody23.097 µg/mL
BK1310Geometric Mean Antibody Titer of Anti-PRP Antibody17.832 µg/mL
ActHIB® and Tetrabik (Control)Geometric Mean Antibody Titer of Anti-PRP Antibody6.245 µg/mL

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026