# MVA Post-Event: Administration Timing and Boost Study

> **NCT00437021** · PHASE1,PHASE2 · COMPLETED · sponsor: **National Institute of Allergy and Infectious Diseases (NIAID)** · enrollment: 226 (actual)

## Conditions studied

- Smallpox

## Interventions

- **BIOLOGICAL:** Live vaccinia virus vaccine
- **BIOLOGICAL:** MVA Smallpox Vaccine
- **OTHER:** Placebo
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT00437021
- **Lead sponsor:** National Institute of Allergy and Infectious Diseases (NIAID)
- **Sponsor class:** NIH
- **Phase:** PHASE1,PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2007-04-16
- **Primary completion:** 2009-04-21
- **Final completion:** 2009-04-21
- **Target enrollment:** 226 (ACTUAL)
- **Last updated:** 2025-09-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00437021

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00437021, "MVA Post-Event: Administration Timing and Boost Study". Retrieved via AI Analytics 2026-09-07 from https://api.ai-analytics.org/clinical/NCT00437021. Licensed CC0.

---

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