# Post-authorisation Passive Enhanced Safety Surveillance of Seasonal Influenza Vaccines: Pilot Study in England

> **NCT03278067** · — · COMPLETED · sponsor: **GlaxoSmithKline** · enrollment: 23939 (actual)

## Conditions studied

- Influenza, Human

## Interventions

- **OTHER:** Enhanced vaccine safety surveillance

## Key facts

- **NCT ID:** NCT03278067
- **Lead sponsor:** GlaxoSmithKline
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2017-09-12
- **Primary completion:** 2017-11-30
- **Final completion:** 2017-11-30
- **Target enrollment:** 23939 (ACTUAL)
- **Last updated:** 2020-01-13

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03278067

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03278067, "Post-authorisation Passive Enhanced Safety Surveillance of Seasonal Influenza Vaccines: Pilot Study in England". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT03278067. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*