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Showing 1–4 of 4 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: SA4Ag vaccine Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of a Single Vaccination With One of Three Ascending Dose Levels of a 4-Antigen Staphylococcus Aureus Vaccine (SA4Ag) in Healthy Adults Aged 18 to <65 Years

NCT01364571
View directory record Official record
Conditions
Staphylococcal Infections
Interventions
SA4Ag vaccine low dose, Blood draw, Colonization swab sample, SA4Ag vaccine mid dose, Blood sample, SA4Ag vaccine high dose, Placebo
Biological · Procedure
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 64 Years
Enrollment
456 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
16
States / cities
Hollywood, Florida • South Miami, Florida • Overland Park, Kansas + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2019 · Synced Sep 12, 2026, 3:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of a Single Vaccination of One of Three Ascending Dose Levels of a 4-Antigen Staphylococcus Aureus Vaccine (SA4Ag) and a Single Dose Level of a 3-Antigen Staphylococcus Aureus Vaccine (SA3Ag) in Healthy Adults Aged 65 to <86 Years

NCT01643941
View directory record Official record
Conditions
Staphylococcal Infections
Interventions
SA4Ag vaccine low dose, Blood draw, Colonization swab sample, SA4Ag vaccine mid dose, SA4Ag vaccine high dose, SA3Ag vaccine, Blood sample, Placebo, Colonization swab samples
Biological · Procedure
Lead sponsor
Pfizer
Industry
Eligibility
65 Years to 85 Years
Enrollment
284 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
7
States / cities
Hollywood, Florida • South Miami, Florida • Overland Park, Kansas + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2019 · Synced Sep 12, 2026, 3:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of a Single Vaccination With a 4-Antigen Staphylococcus Aureus Vaccine (SA4Ag) in Healthy Adults Aged 18 to <65 Years

NCT02364596
View directory record Official record
Conditions
Staphylococcal Infections
Interventions
SA4Ag vaccine, Blood sample
Biological · Procedure
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 64 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
2
States / cities
Hollywood, Florida • South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 2, 2015 · Synced Sep 12, 2026, 3:05 AM EDT
Terminated Phase 2 Interventional Results available

Safety and Efficacy of SA4Ag Vaccine in Adults Having Elective Open Posterior Spinal Fusion Procedures With Multilevel Instrumentation

NCT02388165
View directory record Official record
Conditions
Staphylococcal Vaccine
Interventions
Staphylococcus aureus 4-Antigen (SA4Ag) Vaccine, Placebo
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 85 Years
Enrollment
3,450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
234
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 89 more
Source: ClinicalTrials.gov public record
Updated Jan 4, 2021 · Synced Sep 12, 2026, 3:05 AM EDT