Moderna’s COVID-19 vaccine candidate 95% efficient in phase 3 study

Moderna’s COVID-19 vaccine candidate has achieved efficiency of almost 95% in a Phase 3 study.

This COVE study enrolled more than 30,000 participants in the US and is being conducted in collaboration with the National Institute of Allergy and Infectious Diseases (NIAID).

The primary endpoint of the study is based on the analysis of COVID-19 cases confirmed and adjudicated starting two weeks following the second dose of vaccine.

This first interim analysis was based on 95 cases, of which 90 cases of COVID-19 were observed in the placebo group versus 5 cases observed in the mRNA-1273 group, resulting in a point estimate of vaccine efficacy of 94.5%.

A secondary endpoint analysed severe cases of COVID-19 and included 11 severe cases (as defined in the study protocol) in this first interim analysis. All 11 cases occurred in the placebo group and none in the mRNA-1273 vaccinated group.

The 95 COVID-19 cases included 15 older adults (ages 65+) and 20 participants identifying as being from diverse communities (including 12 Hispanic or LatinX, 4 Black or African Americans, 3 Asian Americans and 1 multiracial).

As more cases accrue leading up to the final analysis, Moderna said it expects the point estimate for vaccine efficacy may change. The Company plans to submit data from the full Phase 3 COVE study to a peer-reviewed publication.

“This is a pivotal moment in the development of our COVID-19 vaccine candidate. Since early January, we have chased this virus with the intent to protect as many people around the world as possible. All along, we have known that each day matters,” said Stéphane Bancel, CEO of Modern.

“This positive interim analysis from our Phase 3 study has given us the first clinical validation that our vaccine can prevent COVID-19 disease, including severe disease.

“This milestone is only possible because of the hard work and sacrifices of so many. I want to thank the thousands of participants in our Phase 1, Phase 2 and Phase 3 studies, and the staff at our clinical trial sites who have been on the front lines of the fight against the virus.”

Based on these interim safety and efficacy data, Moderna intends to submit for an Emergency Use Authorization (EUA) with the US FDA in the coming weeks and anticipates having the EUA informed by the final safety and efficacy data (with a median duration of at least 2 months).

Moderna also plans to submit applications for authorizations to global regulatory agencies.

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