articleNew England Journal of MedicineFeb 9, 2022BRONZE OA

Final Analysis of Efficacy and Safety of Single-Dose Ad26.COV2.S

University of Maryland, Baltimore · Janssen (Belgium) · +11 more institutions

PubMed
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Abstract

Background

The Ad26.COV2.S vaccine was highly effective against severe-critical coronavirus disease 2019 (Covid-19), hospitalization, and death in the primary phase 3 efficacy analysis.

Methods

viral particles) or placebo. The primary end points were vaccine efficacy against moderate to severe-critical Covid-19 with onset at least 14 days after administration and at least 28 days after administration in the per-protocol population. Safety and key secondary and exploratory end points were also assessed.

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Funding