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Clinical Trial Summary

The main purpose of this study is to assess the efficacy of S-268019-b for the prevention of COVID-19 in the initial vaccination period prior to crossover in participants without evidence of infection before vaccination as compared to placebo.

Clinical Trial Description

Eligible participants will be randomized to receive either S-268019-b or placebo first and then will be crossed over to receive the opposite intervention. The study will consist of two treatment periods, an initial vaccination period (Day 1 to Day 224), and a crossover vaccination period (Day 225 to Day 435). ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05212948
Study type Interventional
Source Shionogi Inc.
Contact Shionogi Clinical Trials Administrator Clinical Support Help Lin
Phone 800-849-9707
Email [email protected]
Status Recruiting
Phase Phase 3
Start date December 25, 2021
Completion date December 31, 2023

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