# Effect of Age and Prior Immunity on Response to H1N1 Vaccines in Children

> **NCT01097941** · PHASE4 · WITHDRAWN · sponsor: **University of Rochester**

## Conditions studied

- 2009 H1N1 Influenza

## Interventions

- **BIOLOGICAL:** Live Attenuated H1N1 Influenza Vaccine
- **BIOLOGICAL:** Influenza A (H1N1) 2009 Monovalent Vaccine
- **BIOLOGICAL:** Influenza A (H1N1) 2009 Monovalent Vaccine/ Influenza A (H1N1) Monovalent Vaccine Live

## Key facts

- **NCT ID:** NCT01097941
- **Lead sponsor:** University of Rochester
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2010-03
- **Primary completion:** 2010-09
- **Final completion:** 2010-09
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Live H1N1 vaccine expired and unable to get new supply
- **Last updated:** 2015-09-24

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01097941

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01097941, "Effect of Age and Prior Immunity on Response to H1N1 Vaccines in Children". Retrieved via AI Analytics 2026-06-07 from https://api.ai-analytics.org/clinical/NCT01097941. Licensed CC0.

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