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Trial to Evaluate the Safety, Tolerability, and Immunogenicity of A Multivalent Group B Streptococcus Vaccine When Administered Concomitantly With Tdap in Healthy Nonpregnant Women

Primary Purpose

Group B Streptococcus Infections

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Multivalent Group B streptococcus vaccine
Tetanus, diphtheria, and acellular pertussis vaccine
Placebo
Sponsored by
Pfizer
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Group B Streptococcus Infections

Eligibility Criteria

18 Years - 49 Years (Adult)FemaleAccepts Healthy Volunteers

Inclusion Criteria:

  • Healthy women ≥18 and ≤49 years of age.
  • Participants who are willing and able to comply with scheduled visits, investigational plan, laboratory tests, lifestyle considerations, and other study procedures, including completion of the e-diary from Day 1 to Day 7 following administration of investigational product.
  • Healthy females at enrollment who are determined by medical history, physical examination, and clinical judgment of the investigator to be eligible for inclusion in the study.
  • Expected to be available for the duration of the study and who can be contacted by telephone during study participation.
  • Capable of giving personal signed informed consent.

Exclusion Criteria:

  • Pregnant female participants; breastfeeding female participants; positive urine pregnancy test for women of childbearing potential (WOCBP) at Visit 1 (prior to vaccination)
  • History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the investigational product or any diphtheria toxoid-containing or CRM197-containing vaccine.
  • History of microbiologically proven invasive disease caused by group B streptococcus.
  • Immunocompromised participants with known or suspected immunodeficiency.
  • Bleeding diathesis or condition associated with prolonged bleeding that would in the opinion of the investigator contraindicate intramuscular injection.
  • Other acute or chronic medical or psychiatric condition, including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
  • Previous vaccination with any licensed or investigational GBS vaccine, or planned receipt during the participant's participation in the study (through the 1-month follow-up visit [Visit 2]).
  • Vaccination within 5 years with tetanus and diphtheria toxoids and acellular pertussis-containing vaccines (Tdap) before investigational product administration.
  • Participants who receive treatment with immunosuppressive therapy, including cytotoxic agents or systemic corticosteroids
  • Vaccination with diphtheria- or CRM197-containing vaccine(s) from 6 months before investigational product administration, or planned receipt through the 1-month follow-up visit.
  • Receipt or planned receipt of blood/plasma products or immunoglobulin, from 60 days before investigational product administration through the 1-month follow-up visit
  • Participation in other studies involving investigational drug(s) within 28 days prior to study entry and/or during study participation

Sites / Locations

  • Alliance for Multispecialty Research, LLC
  • Quality Clinical Research, Inc
  • Alliance for Multispecialty Research, LLC
  • Accellacare - Raleigh
  • Accellacare - Wilmington
  • PriMED Clinical Research
  • PriMed Clinical Research
  • Lynn Health Science Institute
  • Alliance for Multispecialty Research, LLC
  • Benchmark Research
  • DM Clinical Research - Brookline
  • J. Lewis Research, Inc. / Foothill Family Clinic South

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Experimental

Arm Label

GBS6 and Tdap

GBS6 and Placebo

Placebo and Tdap

Arm Description

Multivalent group B streptococcus vaccine and Tetanus, diphtheria, and acellular pertussis vaccine (Tdap)

Multivalent group B streptococcus vaccine and Placebo

Placebo and Tetanus, diphtheria, and acellular pertussis vaccine (Tdap)

Outcomes

Primary Outcome Measures

Proportion of participants reporting prompted local reactions within 7 days following investigational product administration
Describe prompted local reactions following investigational product administration
Proportion of participants reporting prompted systemic events within 7 days following investigational product administration
Describe prompted systemic events following investigational product administration
Proportion of participants reporting adverse events (AEs) through 1 month following investigational product administration
Describe AEs occurring through 1 month following administration of investigational product
Proportion of participants reporting medically attended adverse events (MAEs) and serious adverse events (SAEs) through 1 month following investigational product administration
Describe MAEs and SAEs through 1 month following administration of investigational product
Difference in proportions of participants with anti-tetanus toxoid antibody concentrations greater than or equal to 0.1 IU/mL measured 1 month after vaccination between the GBS6 and Tdap group and the placebo and Tdap group
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
Difference in proportions of participants with anti-diphtheria toxoid antibody concentrations greater than or equal to 0.1 IU/mL measured 1 month after vaccination between GBS6 and Tdap group and placebo and Tdap group
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
Geometric mean ratio (GMR), estimated by GMR of anti-pertussis toxin antibodies from the GBS6 and Tdap group to the placebo and Tdap group measured 1 month after vaccination.
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
GMR, estimated by the GMR of anti-filamentous hemagglutinin (anti-FHA) antibodies from the GBS6 and Tdap group to the placebo and Tdap group measured 1 month after vaccination.
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
GMR, estimated by the GMR of antipertactin (anti-PRN) antibodies from the GBS6 and Tdap group to the placebo and Tdap group measured 1 month after vaccination.
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
GBS capsular polysaccharide (CPS) serotype-specific IgG GMR, estimated by the GMR of GBS CPS serotype-specific IgG antibodies from the GBS6 and Tdap group to the GBS6 and placebo group measured 1 month after vaccination.
Describe that the immune responses induced by GBS6 when administered concomitantly with Tdap (GBS6 and Tdap) compared to the immune responses induced by GBS6 (GBS6 and placebo) alone

Secondary Outcome Measures

Full Information

First Posted
February 18, 2021
Last Updated
June 23, 2023
Sponsor
Pfizer
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1. Study Identification

Unique Protocol Identification Number
NCT04766086
Brief Title
Trial to Evaluate the Safety, Tolerability, and Immunogenicity of A Multivalent Group B Streptococcus Vaccine When Administered Concomitantly With Tdap in Healthy Nonpregnant Women
Official Title
A PHASE 2B, PLACEBO-CONTROLLED, RANDOMIZED, OBSERVER-BLINDED TRIAL TO EVALUATE THE SAFETY, TOLERABILITY, AND IMMUNOGENICITY OF A MULTIVALENT GROUP B STREPTOCOCCUS VACCINE WHEN ADMINISTERED CONCOMITANTLY WITH TETANUS, DIPHTHERIA, AND ACELLULAR PERTUSSIS VACCINE (TDAP) IN HEALTHY NONPREGNANT WOMEN 18 THROUGH 49 YEARS OF AGE
Study Type
Interventional

2. Study Status

Record Verification Date
June 2023
Overall Recruitment Status
Completed
Study Start Date
August 12, 2022 (Actual)
Primary Completion Date
April 27, 2023 (Actual)
Study Completion Date
April 27, 2023 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Pfizer

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This phase 2B, placebo-controlled, randomized, observer-blinded trial will evaluate the safety, tolerability, and immunogenicity of the investigational multivalent group B streptococcus vaccine administered concomitantly with Tdap in healthy nonpregnant women 18 through 49 years of age.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Group B Streptococcus Infections

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Masking Description
This is an observer-blinded study. Study staff dispensing and administering the vaccine will be unblinded, but all other study personnel, including the principal investigator, and the subject, will be blinded.
Allocation
Randomized
Enrollment
306 (Actual)

8. Arms, Groups, and Interventions

Arm Title
GBS6 and Tdap
Arm Type
Experimental
Arm Description
Multivalent group B streptococcus vaccine and Tetanus, diphtheria, and acellular pertussis vaccine (Tdap)
Arm Title
GBS6 and Placebo
Arm Type
Experimental
Arm Description
Multivalent group B streptococcus vaccine and Placebo
Arm Title
Placebo and Tdap
Arm Type
Experimental
Arm Description
Placebo and Tetanus, diphtheria, and acellular pertussis vaccine (Tdap)
Intervention Type
Biological
Intervention Name(s)
Multivalent Group B streptococcus vaccine
Intervention Description
Multivalent Group B streptococcus vaccine
Intervention Type
Biological
Intervention Name(s)
Tetanus, diphtheria, and acellular pertussis vaccine
Other Intervention Name(s)
Tdap
Intervention Description
Tetanus, diphtheria, and acellular pertussis vaccine
Intervention Type
Biological
Intervention Name(s)
Placebo
Intervention Description
Saline control
Primary Outcome Measure Information:
Title
Proportion of participants reporting prompted local reactions within 7 days following investigational product administration
Description
Describe prompted local reactions following investigational product administration
Time Frame
Day 7
Title
Proportion of participants reporting prompted systemic events within 7 days following investigational product administration
Description
Describe prompted systemic events following investigational product administration
Time Frame
Day 7
Title
Proportion of participants reporting adverse events (AEs) through 1 month following investigational product administration
Description
Describe AEs occurring through 1 month following administration of investigational product
Time Frame
1 month following administration of investigational product
Title
Proportion of participants reporting medically attended adverse events (MAEs) and serious adverse events (SAEs) through 1 month following investigational product administration
Description
Describe MAEs and SAEs through 1 month following administration of investigational product
Time Frame
1 month following administration of investigational product
Title
Difference in proportions of participants with anti-tetanus toxoid antibody concentrations greater than or equal to 0.1 IU/mL measured 1 month after vaccination between the GBS6 and Tdap group and the placebo and Tdap group
Description
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
Time Frame
1 month after investigational product administration
Title
Difference in proportions of participants with anti-diphtheria toxoid antibody concentrations greater than or equal to 0.1 IU/mL measured 1 month after vaccination between GBS6 and Tdap group and placebo and Tdap group
Description
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
Time Frame
1 month after investigational product administration
Title
Geometric mean ratio (GMR), estimated by GMR of anti-pertussis toxin antibodies from the GBS6 and Tdap group to the placebo and Tdap group measured 1 month after vaccination.
Description
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
Time Frame
1 month after investigational product administration
Title
GMR, estimated by the GMR of anti-filamentous hemagglutinin (anti-FHA) antibodies from the GBS6 and Tdap group to the placebo and Tdap group measured 1 month after vaccination.
Description
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
Time Frame
1 month after investigational product administration
Title
GMR, estimated by the GMR of antipertactin (anti-PRN) antibodies from the GBS6 and Tdap group to the placebo and Tdap group measured 1 month after vaccination.
Description
Describe that the immune responses induced by Tdap when administered concomitantly with GBS6 compared to the immune responses induced by Tdap alone.
Time Frame
1 month after investigational product administration
Title
GBS capsular polysaccharide (CPS) serotype-specific IgG GMR, estimated by the GMR of GBS CPS serotype-specific IgG antibodies from the GBS6 and Tdap group to the GBS6 and placebo group measured 1 month after vaccination.
Description
Describe that the immune responses induced by GBS6 when administered concomitantly with Tdap (GBS6 and Tdap) compared to the immune responses induced by GBS6 (GBS6 and placebo) alone
Time Frame
1 month after investigational product administration

10. Eligibility

Sex
Female
Gender Based
Yes
Gender Eligibility Description
Healthy women ≥18 and ≤49 years of age.
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
49 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Healthy women ≥18 and ≤49 years of age. Participants who are willing and able to comply with scheduled visits, investigational plan, laboratory tests, lifestyle considerations, and other study procedures, including completion of the e-diary from Day 1 to Day 7 following administration of investigational product. Healthy females at enrollment who are determined by medical history, physical examination, and clinical judgment of the investigator to be eligible for inclusion in the study. Expected to be available for the duration of the study and who can be contacted by telephone during study participation. Capable of giving personal signed informed consent. Exclusion Criteria: Pregnant female participants; breastfeeding female participants; positive urine pregnancy test for women of childbearing potential (WOCBP) at Visit 1 (prior to vaccination) History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the investigational product or any diphtheria toxoid-containing or CRM197-containing vaccine. History of microbiologically proven invasive disease caused by group B streptococcus. Immunocompromised participants with known or suspected immunodeficiency. Bleeding diathesis or condition associated with prolonged bleeding that would in the opinion of the investigator contraindicate intramuscular injection. Other acute or chronic medical or psychiatric condition, including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study. Previous vaccination with any licensed or investigational GBS vaccine, or planned receipt during the participant's participation in the study (through the 1-month follow-up visit [Visit 2]). Vaccination within 5 years with tetanus and diphtheria toxoids and acellular pertussis-containing vaccines (Tdap) before investigational product administration. Participants who receive treatment with immunosuppressive therapy, including cytotoxic agents or systemic corticosteroids Vaccination with diphtheria- or CRM197-containing vaccine(s) from 6 months before investigational product administration, or planned receipt through the 1-month follow-up visit. Receipt or planned receipt of blood/plasma products or immunoglobulin, from 60 days before investigational product administration through the 1-month follow-up visit Participation in other studies involving investigational drug(s) within 28 days prior to study entry and/or during study participation
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Pfizer CT.gov Call Center
Organizational Affiliation
Pfizer
Official's Role
Study Director
Facility Information:
Facility Name
Alliance for Multispecialty Research, LLC
City
Newton
State/Province
Kansas
ZIP/Postal Code
67114
Country
United States
Facility Name
Quality Clinical Research, Inc
City
Omaha
State/Province
Nebraska
ZIP/Postal Code
68114
Country
United States
Facility Name
Alliance for Multispecialty Research, LLC
City
Las Vegas
State/Province
Nevada
ZIP/Postal Code
89119
Country
United States
Facility Name
Accellacare - Raleigh
City
Raleigh
State/Province
North Carolina
ZIP/Postal Code
27609
Country
United States
Facility Name
Accellacare - Wilmington
City
Wilmington
State/Province
North Carolina
ZIP/Postal Code
28401
Country
United States
Facility Name
PriMED Clinical Research
City
Dayton
State/Province
Ohio
ZIP/Postal Code
45419
Country
United States
Facility Name
PriMed Clinical Research
City
Dayton
State/Province
Ohio
ZIP/Postal Code
45429
Country
United States
Facility Name
Lynn Health Science Institute
City
Oklahoma City
State/Province
Oklahoma
ZIP/Postal Code
73112
Country
United States
Facility Name
Alliance for Multispecialty Research, LLC
City
Knoxville
State/Province
Tennessee
ZIP/Postal Code
37909
Country
United States
Facility Name
Benchmark Research
City
Fort Worth
State/Province
Texas
ZIP/Postal Code
76135
Country
United States
Facility Name
DM Clinical Research - Brookline
City
Houston
State/Province
Texas
ZIP/Postal Code
77081
Country
United States
Facility Name
J. Lewis Research, Inc. / Foothill Family Clinic South
City
Salt Lake City
State/Province
Utah
ZIP/Postal Code
84121
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
IPD Sharing URL
https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests
Links:
URL
https://pmiform.com/clinical-trial-info-request?StudyID=C1091005
Description
To obtain contact information for a study center near you, click here.

Learn more about this trial

Trial to Evaluate the Safety, Tolerability, and Immunogenicity of A Multivalent Group B Streptococcus Vaccine When Administered Concomitantly With Tdap in Healthy Nonpregnant Women

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