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Group B streptoccous 6-valent polysaccharide conjugate vaccine

Phase 2

Group B Streptococcal Infections | Monoclonal antibody | Infectious Disease |Pfizer, Inc.|Last Updated: Oct 13, 2021

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment151

FDA Designations

No designations recorded

Clinical trial landscape

Group B streptoccous 6-valent polysaccharide conjugate vaccine · 1 trial · 1 indication

Phase 2 1
NCT04258995A TRIAL TO EVALUATE THE SAFETY, TOLERABILITY, AND IMMUNOGENICITY OF A BOOSTER DOSE OF A GROUP B STREPTOCOCCUS 6 VALENT POLYSACCHARIDE CONJUGATE VACCINE (GBS6) IN HEALTHY ADULTSGroup B Streptococcal Infections
COMPLETED151 Analytics
PHASE2COMPLETED
A TRIAL TO EVALUATE THE SAFETY, TOLERABILITY, AND IMMUNOGENICITY OF A BOOSTER DOSE OF A GROUP B STREPTOCOCCUS 6 VALENT POLYSACCHARIDE CONJUGATE VACCINE (GBS6) IN HEALTHY ADULTS
Group B Streptococcal InfectionsUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants Reporting Prompted Local Reactions Within 14 Days Following Booster Dose (Redness, Swelling, and Pain at the Injection Site)
Within 14 days after booster dose

Local reactions were collected by using an e-diary and included pain at injection site, redness, and swelling graded below: pain at injection site: mild (did not interfere with activity), moderate (repeated use of nonnarcotic pain reliever \>24 hours or interfered with activity), severe (any use of narcotic pain reliever or prevented daily activity), grade 4 (emergency room visit or hospitalization). Redness and swelling were graded as: mild (2.0-5.0 centimeter \[cm\]), moderate (greater than \[\>\] 5.0-10.0 cm),severe (\>10.0 cm), grade 4 for redness (necrosis or exfoliative dermatitis) and grade 4 for swelling (necrosis).Maximum severity (highest grading) of each location reaction within 14 days of vaccination was derived.

Percentage of Participants Reporting Prompted Systemic Events Within 14 Days Following Booster Dose (Fever, Nausea/Vomiting, Diarrhea, Headache, Fatigue, Muscle Pain, and Joint Pain)
Within 14 days after booster dose

Nausea/Vomiting:Mild:No interference with activity or 1-2 times in 24 hours;Moderate:Some interference with activity or\>2 times in 24 hours;Severe:Prevented daily activity, required IV hydration.Diarrhea:Mild:2-3 loose stools in 24 hours;Moderate: 4-5 loose stools in 24 hours;Severe:\>=6 loose stools in 24 hours.Headache:Mild:No interference with activity;Moderate:Repeated use of nonnarcotic pain reliever \>24 hours or some interference with activity;Severe:Significant; any use of narcotic pain reliever or prevents daily activity.Fatigue:Mild:No interference with activity;Moderate: Some interference with activity;Severe: Significant; prevented daily activity.Muscle pain:Mild: No interference with activity;Moderate:Some interference with activity;Severe:Significant;prevented daily activity.Muscle/joint pain:Mild: No interference with activity;Moderate:Some interference with activity;Severe:Significant; prevented daily activity.Grade 4 for all AEs:Emergency visit or hospitalization.

Percentage of Participants Reporting Adverse Events (AEs) Within 1 Month Following Booster Dose
Within 1 month after booster dose

An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly or that was considered to be an important medical event. AEs included both non-serious AEs and SAEs.

Percentage of Participants Reporting Medically Attended Adverse Events (MAEs) Within 6 Months Following Booster Dose
Within 6 months after booster dose

An AE was any untoward medical occurrence in a participant in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly or that was considered to be an important medical event. An MAE was defined as a non serious AE (AE other than SAE) that resulted in an evaluation at a medical facility.

Percentage of Participants With Serious Adverse Events (SAEs) Within 6 Months After Booster Dose
Within 6 months after booster dose

An AE was any untoward medical occurrence in a participant in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly or that was considered to be an important medical event.

Secondary Endpoints

GBS Serotype-Specific IgG Geometric Mean Concentrations (GMC) Measured Before and 1 Month After Booster Dose
Before and 1 month after booster dose
GBS Serotype-Specific Opsonophagocytic Activity (OPA) Geometric Mean Titers Measured Before to 1 Month After Booster Dose
Within 6 months after primary dose and within 1 month after booster dose
GBS Serotype-Specific IgG Geometric Mean Fold Rise (GMFR) From Before To 1 Month After Booster Dose
1 month after booster dose
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
GBS6 no aluminum phosphate (GBS6 no AlPO4)EXPERIMENTAL -
GBS6 with aluminum phosphate (GBS6 with AlPO4)EXPERIMENTAL -

Interventions

NameTypeDescription
Group B streptoccous 6-valent polysaccharide conjugate vaccine (GBS6)BIOLOGICAL2 formulations at 1 dose level
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Eligibility Criteria

Age Range20 Years to 51 Years
SexALL
Healthy VolunteersYes
Study Sites4

Inclusion Criteria: 1. Healthy adults (male and female) at enrollment who are determined by medical history, physical examination, and clinical judgment of the investigator to be eligible for inclusion in the study. 2. Participants who were enrolled in the C1091001 study, received GBS6, and complet...

Countries:United States
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