# A Study of mRNA-1010 Seasonal Influenza Vaccine in Adults 50 Years Old and Older

> **NCT05566639** · PHASE3 · COMPLETED · sponsor: **ModernaTX, Inc.** · enrollment: 22502 (actual)

## Conditions studied

- Seasonal Influenza

## Interventions

- **BIOLOGICAL:** mRNA-1010
- **BIOLOGICAL:** Fluarix Quadrivalent

## Key facts

- **NCT ID:** NCT05566639
- **Lead sponsor:** ModernaTX, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2022-09-14
- **Primary completion:** 2024-01-05
- **Final completion:** 2024-01-05
- **Target enrollment:** 22502 (ACTUAL)
- **Last updated:** 2025-01-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05566639

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05566639, "A Study of mRNA-1010 Seasonal Influenza Vaccine in Adults 50 Years Old and Older". Retrieved via AI Analytics 2026-09-26 from https://api.ai-analytics.org/clinical/NCT05566639. Licensed CC0.

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