Clinical Trial: Clinical Trial of Quadrivalent Subunit Influenza Vaccine (Adjuvant) in Chinese Population Aged 65 Years and Older

U.S., Feb. 20 -- ClinicalTrials.gov registry received information related to the study (NCT07421037) titled 'Clinical Trial of Quadrivalent Subunit Influenza Vaccine (Adjuvant) in Chinese Population Aged 65 Years and Older' on Nov. 13, 2025.

Brief Summary: The objective of this study was to evaluate the safety of quadrivalent subunit influenza vaccine (adjuvant) in people aged 65 years and older.

Study Start Date: Nov. 13, 2025

Study Type: INTERVENTIONAL

Condition: Influenza Influenza Vaccine

Intervention: BIOLOGICAL: Quadrivalent Subunit Influenza Vaccine (Adjuvant)

A single 0.25 mL dose is administered intramuscularly into the deltoid muscle of the upper arm on Day 0.

BIOLOGICAL: Quadrivalent Subunit Influenza Vaccine (Adjuvant)...