Safety and Immunogenicity of a Group B Streptococcus Vaccine in Healthy Women
A Phase Ib Randomized, Observer-Blind, Controlled, Single Center, Dose-Ranging Study of a Group B Streptococcus Vaccine in Healthy Women 18-40 Years of Age
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 1
Contacts and Locations
Study Locations
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-
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Gent, Belgium
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy females 18-40 years of age inclusive.
Exclusion Criteria:
- Individuals who are pregnant or nursing.
- Individuals who have had a previous immunization with a vaccine containing streptococcus antigens or any vaccine within 30 days of enrollment through 30 days of study completion.
- Individuals with a history of severe allergic reactions after previous vaccination
- Individuals with designated blood tests that are not within normal range
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: 5 µg_No Adj
Subjects received either 1 or 2 doses of active vaccine (5 µg) without any adjuvant
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Experimental: 20 µg_No Adj
Subjects received either 1 or 2 doses of active vaccine (20 µg) without any adjuvant.
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Experimental: 5 µg_Alum
Subjects received either 1 or 2 doses of active vaccine (5 µg) with Alum adjuvant.
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Experimental: 20 µg_Alum
Subjects received either 1 or 2 doses of active vaccine (5 µg) with Alum adjuvant.
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Experimental: 5 µg_MF59-H
Subjects received either 1 or 2 doses of active vaccine (5 µg) adjuvanted with 4.87 mg of MF59
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Experimental: 20 µg_MF59-H
Subjects received either 1 or 2 doses of active vaccine (20 µg) adjuvanted with 4.87 mg of MF59
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Experimental: 5 µg_MF59-F
Subjects received either 1 or 2 doses of active vaccine (5 µg) adjuvanted with 9.75 mg of MF59
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Experimental: 20 µg_MF59-F
Subjects received either 1 or 2 doses of active vaccine (20 µg) adjuvanted with 9.75 mg of MF59
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Placebo Comparator: Placebo
Subjects received 2 injections of placebo administered 1 month apart
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Percentage of Subjects Achieving Specific Thresholds of Antibody Concentrations for Subjects in Enrollment Group 1
Time Frame: Day 1 and Day 61
|
The percentage of subjects achieving a specific threshold of antibody concentrations of ≥ 0.5 µg/mL as determined by ELISA at day 61 across cohorts 1 and 2 for potential use in pregnant women.
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Day 1 and Day 61
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Geometric Mean Concentrations of Serum Anti-GBS IgG Antibody Levels by Serotype at Day 61
Time Frame: Day 1 and Day 61
|
Serotype-specific (Ia, Ib & III) group B streptococcus (GBS) IgG antibody levels in healthy subjects for potential use in pregnant woman was assessed in terms of Geometric Mean Concentrations (GMCs) at Day 61 in cohorts 1 and 2.
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Day 1 and Day 61
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Geometric Mean Ratios of Serum Group B Streptococcus IgG Antibody Levels By Serotype
Time Frame: Day 61/Day 1
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Geometric mean ratios (GMRs) relative to baseline (Day 1) of serotype-specific (Ia, Ib, III) GBS IgG antibody levels measured at Day 61 for subjects across cohorts 1 and 2.
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Day 61/Day 1
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Percentage of Subjects Achieving Specific Thresholds of Antibody Concentrations for Subjects in Enrollment Groups 1 & 2
Time Frame: Day 1 and Day 361
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The percentage of subjects achieving a specific threshold of antibody concentrations of ≥ 0.5 µg/mL at day 361 across all the cohorts for potential use in non-pregnant women.
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Day 1 and Day 361
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Geometric Mean Concentrations of Serum Anti-GBS IgG Antibody Levels by Serotype at Day 361
Time Frame: Day 1 and Day 361
|
Serotype-specific (Ia, Ib & III) GBS IgG antibody levels in healthy subjects for potential use in non-pregnant woman was assessed in terms of GMCs at Day 361 across all cohorts.
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Day 1 and Day 361
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Geometric Mean Ratios of Serum Group B Streptococcus IgG Antibody Levels By Serotype at Day 361
Time Frame: Day 1 and day 361
|
GMRs relative to baseline (Day 1) of serotype-specific (Ia, Ib, III) GBS IgG antibody levels in healthy subjects for potential use in non-pregnant women, measured at Day 361 across all cohorts.
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Day 1 and day 361
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Number of Participants Reporting Solicited Adverse Events (AEs) After Receiving the GBS Trivalent Vaccine in Enrollment Group 1
Time Frame: Day 1 to Day 7
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Safety was assessed in terms of number of participants reporting solicited local and systemic adverse events after receiving trivalent GBS vaccine from day 1 to day 7 for subjects across cohorts 1 and 2.
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Day 1 to Day 7
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Number of Participants Reporting Solicited AEs After Receiving the GBS Trivalent Vaccine in Enrollment Group 2
Time Frame: Day 1 to Day 7
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Safety was assessed in terms of number of participants reporting solicited local and systemic adverse events after receiving GBS vaccine from day 1 to day 7 for subjects in cohorts 3 and 4.
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Day 1 to Day 7
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Number of Participants Reporting Unsolicited AE After Receiving GBS Trivalent Vaccine in Enrollment Group 1
Time Frame: Day 1 through Day 721
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Safety was assessed in terms of number of participants with unsolicited AEs after receiving GBS trivalent vaccine, reported from day 1 to day 721 across subjects in cohorts 1 and 2.
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Day 1 through Day 721
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Number of Participants Reporting Unsolicited AE After Receiving GBS Trivalent Vaccine in Enrollment Group 2
Time Frame: Day 1 through Day 721
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Safety was assessed in terms of number of participants with unsolicited AEs after receiving GBS trivalent vaccine, reported from day 1 to day 721 across subjects in cohorts 3 and 4.
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Day 1 through Day 721
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Persistence of Antibody Response in Terms of Geometric Mean Concentrations by Serotype for Subjects in Enrollment Group 1
Time Frame: Day 1 and Day 721
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The persistence of Serotype-specific (Ia, Ib & III) GBS IgG antibody response was assessed by comparing ELISA responses in terms of GMCs at day 721 after the first injection for subjects enrolled in cohorts 1 and 2.
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Day 1 and Day 721
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Persistence of Antibody Response in Terms of Geometric Mean Concentrations by Serotype in Subjects in Enrollment Group 2
Time Frame: Day 1 and Day 721
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The persistence of Serotype-specific (Ia, Ib & III) GBS IgG antibody response assessed by comparing ELISA responses in terms of GMCs at day 721 after the first injection for subjects enrolled in cohort 3 and 4.
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Day 1 and Day 721
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Geometric Mean Ratios of Serum GBS IgG Antibody Levels By Serotype for Subjects in Enrollment Group 1
Time Frame: Day 1 and Day 721
|
GMR was calculated at Day 721 relative to baseline (Day 1) of serotype-specific (Ia, Ib, III) GBS IgG antibody levels across all cohorts 1 and 2.
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Day 1 and Day 721
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Geometric Mean Ratios of Serum GBS IgG Antibody Levels By Serotype for Subjects in Enrollment Group 2
Time Frame: Day 1 and Day 721
|
GMR was calculated at Day 721 relative to baseline (Day 1) of serotype-specific (Ia, Ib, III) GBS IgG antibody levels across cohorts 3 and 4.
|
Day 1 and Day 721
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Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Study Chair: Novartis Vaccines, Novartis
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- V98_06
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