# FLU-VACS Comparative Study in Adults

> **NCT00133523** · PHASE4 · COMPLETED · sponsor: **National Institute of Allergy and Infectious Diseases (NIAID)** · enrollment: 2349 (actual)

## Conditions studied

- Influenza

## Interventions

- **BIOLOGICAL:** Cold-adapted live attenuated influenza virus vaccine, trivalent
- **OTHER:** Placebo
- **BIOLOGICAL:** Trivalent inactivated influenza vaccine
- **BIOLOGICAL:** Trivalent inactivated influenza vaccine
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT00133523
- **Lead sponsor:** National Institute of Allergy and Infectious Diseases (NIAID)
- **Sponsor class:** NIH
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2004-10
- **Primary completion:** 2007-07
- **Final completion:** 2007-07
- **Target enrollment:** 2349 (ACTUAL)
- **Last updated:** 2014-12-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00133523

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00133523, "FLU-VACS Comparative Study in Adults". Retrieved via AI Analytics 2026-07-30 from https://api.ai-analytics.org/clinical/NCT00133523. Licensed CC0.

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