# Immunization To Prevent Acute COPD Exacerbations

> **NCT03276754** · — · TERMINATED · sponsor: **Pfizer** · enrollment: 530 (actual)

## Conditions studied

- Pneumococcal Infections
- COPD

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT03276754
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** TERMINATED
- **Start date:** 2017-11-30
- **Primary completion:** 2022-06-16
- **Final completion:** 2022-06-16
- **Target enrollment:** 530 (ACTUAL)
- **Why stopped:** The study was terminated prematurely due to the inability to recruit the planned number of subjects and the interim analysis indicated that the number of included patients did not allow draw any valid conclusion about the main objective of the study
- **Last updated:** 2024-08-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03276754

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03276754, "Immunization To Prevent Acute COPD Exacerbations". Retrieved via AI Analytics 2026-05-30 from https://api.ai-analytics.org/clinical/NCT03276754. Licensed CC0.

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