# Study on an Investigational Yellow Fever Vaccine Compared With Stamaril in Adults in Europe and Asia

> **NCT05011123** · PHASE2 · ACTIVE_NOT_RECRUITING · sponsor: **Sanofi Pasteur, a Sanofi Company** · enrollment: 690 (actual)

## Conditions studied

- Yellow Fever

## Interventions

- **BIOLOGICAL:** Yellow fever vaccine (produced on serum-free Vero cells)
- **BIOLOGICAL:** Yellow fever vaccine

## Key facts

- **NCT ID:** NCT05011123
- **Lead sponsor:** Sanofi Pasteur, a Sanofi Company
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2021-10-07
- **Primary completion:** 2022-05-23
- **Final completion:** 2027-04-23
- **Target enrollment:** 690 (ACTUAL)
- **Last updated:** 2025-05-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05011123

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05011123, "Study on an Investigational Yellow Fever Vaccine Compared With Stamaril in Adults in Europe and Asia". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT05011123. Licensed CC0.

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