A Randomised Controlled Trial to Assess the Immunogenicity, Safety and Reactogenicity of Standard Dose Versus Fractional Doses of COVID-19 Vaccine (Pfizer-BioNTech) Given as a Booster Dose After Priming With Sinopharm, AstraZeneca or Sputnik in Healthy Adults in Mongolia

Status: Completed

Phase of Trial: Phase III

Latest Information Update: 25 Feb 2025

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At a glance

Drugs Tozinameran (Primary)
Indications COVID 2019 infections
Focus Adverse reactions; Pharmacodynamics

Most Recent Events

29 Jan 2025 Status changed from active, no longer recruiting to completed.
21 Nov 2023 Planned End Date changed from 30 Sep 2023 to 30 Sep 2024.
16 Nov 2022 Status changed from recruiting to active, no longer recruiting.

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