# A Study to Learn About How 20-Valent Pneumococcal Conjugate Vaccine Works in a Real-world Setting

> **NCT05452941** · — · RECRUITING · sponsor: **Pfizer** · enrollment: 12500 (estimated)

## Conditions studied

- Pneumonia

## Interventions

- **DIAGNOSTIC_TEST:** Diagnostic test on urine samples

## Key facts

- **NCT ID:** NCT05452941
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2022-10-27
- **Primary completion:** 2027-06-04
- **Final completion:** 2027-06-04
- **Target enrollment:** 12500 (ESTIMATED)
- **Last updated:** 2026-05-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05452941

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05452941, "A Study to Learn About How 20-Valent Pneumococcal Conjugate Vaccine Works in a Real-world Setting". Retrieved via AI Analytics 2026-09-21 from https://api.ai-analytics.org/clinical/NCT05452941. Licensed CC0.

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