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Feasibility of Randomizing Danish Citizens Aged 65-79 Years to High-Dose Quadrivalent Influenza Vaccine vs. Standard-Dose Quadrivalent Influenza Vaccine in a Pragmatic Registry-Based Setting
Feasibility of Randomizing Danish Citizens Aged 65-79 Years to High-Dose Quadrivalent Influenza Vaccine vs. Standard-Dose Quadrivalent Influenza Vaccine in a Pragmatic Registry-Based Setting

NCT05048589

CompletedPhase 2

Sponsor: Tor Biering-Sørensen

Conditions: Influenza

Interventions: Standard-Dose Quadrivalent Influenza Vaccine, High-Dose Quadrivalent Influenza Vaccine

Countries: Denmark

The purpose of the study is to assess the feasibility of identifying, recruiting and randomizing a large sample of Danish citizens aged 65-79 years to high-dose quadrivalent influenza vaccine or standard-dose quadrivalent influenza vaccine in the 2021/2022 influenza season in a registry-based setting using Danish nationwide registries for all data collection including baseline information and outcome assessment.

Eligibility overview

Sex: ALL

Age: 65 Years to 79 Years

Healthy volunteers: Yes

Study type: INTERVENTIONAL

Eligibility criteria
Inclusion Criteria:

1. Age 65-79 years
2. Informed consent form has been signed and dated

Exclusion Criteria:

1\. Allergy/hypersensitivity towards the influenza vaccines used in this study
Locations (2)
  • Hellerup, Denmark
  • Søborg, Denmark