# A Long-Term Study of Healthy Adults Vaccinated With One Dose of Smallpox Vaccine (LISTER Strain)

> **NCT00998543** · — · COMPLETED · sponsor: **Sanofi** · enrollment: 147 (actual)

## Conditions studied

- Smallpox

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00998543
- **Lead sponsor:** Sanofi
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2006-10
- **Primary completion:** 2011-09
- **Final completion:** 2012-03
- **Target enrollment:** 147 (ACTUAL)
- **Last updated:** 2012-08-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00998543

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00998543, "A Long-Term Study of Healthy Adults Vaccinated With One Dose of Smallpox Vaccine (LISTER Strain)". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00998543. Licensed CC0.

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