# PREVENTING PNEUMOcoccal Disease Through Vaccination (Study 2)

> **NCT04974294** · PHASE4 · UNKNOWN · sponsor: **Liverpool School of Tropical Medicine** · enrollment: 516 (estimated)

## Conditions studied

- Streptococcus Pneumonia

## Interventions

- **BIOLOGICAL:** PPV23
- **BIOLOGICAL:** PCV13
- **OTHER:** Saline for injection

## Key facts

- **NCT ID:** NCT04974294
- **Lead sponsor:** Liverpool School of Tropical Medicine
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-07-28
- **Primary completion:** 2023-07-31
- **Final completion:** 2023-12-31
- **Target enrollment:** 516 (ESTIMATED)
- **Last updated:** 2023-01-05

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04974294

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04974294, "PREVENTING PNEUMOcoccal Disease Through Vaccination (Study 2)". Retrieved via AI Analytics 2026-06-07 from https://api.ai-analytics.org/clinical/NCT04974294. Licensed CC0.

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