# Swine Flu (Influenza A H1N1) Follow on Vaccine Study

> **NCT01239537** · — · COMPLETED · sponsor: **University of Oxford** · enrollment: 560 (estimated)

## Conditions studied

- Influenza

## Interventions

- **DRUG:** Seasonal Flu vaccine

## Key facts

- **NCT ID:** NCT01239537
- **Lead sponsor:** University of Oxford
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2010-11
- **Primary completion:** 2010-12
- **Final completion:** 2010-12
- **Target enrollment:** 560 (ESTIMATED)
- **Last updated:** 2017-12-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01239537

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01239537, "Swine Flu (Influenza A H1N1) Follow on Vaccine Study". Retrieved via AI Analytics 2026-07-18 from https://api.ai-analytics.org/clinical/NCT01239537. Licensed CC0.

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