# Study of Immune Responses to Influenza Vaccination

> **NCT03346772** · PHASE4 · RECRUITING · sponsor: **University of Pennsylvania** · enrollment: 75 (estimated)

## Conditions studied

- Influenza Vaccination

## Interventions

- **BIOLOGICAL:** Influenza vaccination

## Key facts

- **NCT ID:** NCT03346772
- **Lead sponsor:** University of Pennsylvania
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2017-10-20
- **Primary completion:** 2026-07-01
- **Final completion:** 2026-07-01
- **Target enrollment:** 75 (ESTIMATED)
- **Last updated:** 2025-08-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03346772

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03346772, "Study of Immune Responses to Influenza Vaccination". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT03346772. Licensed CC0.

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