# 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** · PHASE1 · COMPLETED · sponsor: **Pfizer** · enrollment: 456 (actual)

## Conditions studied

- Staphylococcal Infections

## Interventions

- **BIOLOGICAL:** SA4Ag vaccine low dose
- **PROCEDURE:** Blood draw
- **PROCEDURE:** Colonization swab sample
- **BIOLOGICAL:** SA4Ag vaccine mid dose
- **PROCEDURE:** Blood sample
- **PROCEDURE:** Colonization swab sample
- **BIOLOGICAL:** SA4Ag vaccine high dose
- **PROCEDURE:** Blood draw
- **PROCEDURE:** Colonization swab sample
- **BIOLOGICAL:** Placebo
- **PROCEDURE:** Blood draw
- **PROCEDURE:** Colonization swab sample

## Key facts

- **NCT ID:** NCT01364571
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2011-08
- **Primary completion:** 2013-01
- **Final completion:** 2013-01
- **Target enrollment:** 456 (ACTUAL)
- **Last updated:** 2019-03-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01364571

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01364571, "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". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT01364571. Licensed CC0.

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