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Study of Immune Responses to Influenza Vaccination — Stella

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Study of Immune Responses to Influenza Vaccination

Phase 4 — Post-approval study. The treatment has been approved, but researchers continue monitoring it in a large population over time.

Trial locations(1 site)

United States

University of Pennsylvania, Philadelphia, Pennsylvania

Key details

Phase

Post-approval study

Sponsor

University of Pennsylvania

Enrollment target

~75 participants

Started

October 2017

Primary completion

July 2026

Age range

18 Years and older

Last updated August 2025

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