Moderna Announces Primary Efficacy Analysis In Phase 3 COVE Study For Its COVID-19 Vaccine Candidate; Vaccine Efficacy Against COVID-19 Was 94.1%, Vaccine Efficacy Against Severe COVID-19 Was 100%

Primary efficacy analysis of the Phase 3 COVE study of mRNA-1273 involving 30,000 participants included 196 cases of COVID-19, of which 30 cases were severe Vaccine efficacy against COVID-19 was 94.1%; vaccine

Primary efficacy analysis of the Phase 3 COVE study of mRNA-1273 involving 30,000 participants included 196 cases of COVID-19, of which 30 cases were severe

Vaccine efficacy against COVID-19 was 94.1%; vaccine efficacy against severe COVID-19 was 100%

mRNA-1273 continues to be generally well tolerated; no serious safety concerns identified to date

Phase 3 COVE Study has exceeded 2 months of median follow-up post vaccination as required by the U.S. FDA for Emergency Use Authorization (EUA)

Moderna plans today to request EUA from the U.S. FDA, to apply for a conditional marketing authorization with the European Medicines Agency (EMA) and to progress with the rolling reviews, which have already been initiated with international regulatory agencies

FDA has told Company to expect VRBPAC meeting for mRNA-1273 likely on December 17, 2020

Moderna, Inc. (NASDAQ:MRNA), a biotechnology company pioneering messenger RNA (mRNA) therapeutics and vaccines to create a new generation of transformative medicines for patients, today announced that the primary efficacy analysis of the Phase 3 study of mRNA-1273 conducted on 196 cases confirms the high efficacy observed at the first interim analysis. The data analysis indicates a vaccine efficacy of 94.1%. Safety data continue to accrue and the study continues to be monitored by an independent, NIH-appointed Data Safety Monitoring Board (DSMB). The Company also announced that today, Moderna plans to request an Emergency Use Authorization (EUA) from the U.S. Food and Drug Administration (FDA) and conditional approval from the European Medicines Agency (EMA). The Phase 3 study, known as the COVE study, enrolled more than 30,000 participants in the U.S. and is being conducted in collaboration with the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health (NIH), and the Biomedical Advanced Research and Development Authority (BARDA), part of the Office of the Assistant Secretary for Preparedness and Response at the U.S. Department of Health and Human Services.

The primary endpoint of the Phase 3 COVE study is based on the analysis of COVID-19 cases confirmed and adjudicated starting two weeks following the second dose of vaccine. Vaccine efficacy has been demonstrated at the first interim analysis with a total of 95 cases based on the pre-specified success criterion on efficacy. Today's primary analysis was based on 196 cases, of which 185 cases of COVID-19 were observed in the placebo group versus 11 cases observed in the mRNA-1273 group, resulting in a point estimate of vaccine efficacy of 94.1%. A secondary endpoint analyzed severe cases of COVID-19 and included 30 severe cases (as defined in the study protocol) in this analysis. All 30 cases occurred in the placebo group and none in the mRNA-1273 vaccinated group. There was one COVID-19-related death in the study to date, which occurred in the placebo group.

Efficacy was consistent across age, race and ethnicity, and gender demographics. The 196 COVID-19 cases included 33 older adults (ages 65+) and 42 participants identifying as being from diverse communities (including 29 Hispanic or LatinX, 6 Black or African Americans, 4 Asian Americans and 3 multiracial participants).

The safety profile of the Phase 3 study of mRNA-1273 was previously described on November 16. A continuous review of safety data is ongoing and no new serious safety concerns have been identified by the Company. Based on prior analysis, the most common solicited adverse reactions included injection site pain, fatigue, myalgia, arthralgia, headache, and erythema/redness at the injection site. Solicited adverse reactions increased in frequency and severity in the mRNA-1273 group after the second dose.

The Company will submit data from the Phase 3 COVE study to a peer-reviewed publication.

"This positive primary analysis confirms the ability of our vaccine to prevent COVID-19 disease with 94.1% efficacy and importantly, the ability to prevent severe COVID-19 disease. We believe that our vaccine will provide a new and powerful tool that may change the course of this pandemic and help prevent severe disease, hospitalizations and death," said Stéphane Bancel, Chief Executive Officer of Moderna. "I want to thank the thousands of participants in our Phase 1, Phase 2 and Phase 3 studies, as well as the staff at clinical trial sites who have been on the front lines of the fight against the virus. I would again like to thank our partners at NIH, NIAID, BARDA and Operation Warp Speed who have helped us advance the clinical development of mRNA-1273. Finally, I want to thank the Moderna team and our suppliers and partners for their tireless work on the research, development and manufacturing of our vaccine. We will file today for an Emergency Use Authorization from the FDA and continue forging ahead with the rolling reviews that have already been initiated with several regulatory agencies around the globe."

Today, Moderna will submit for an EUA with the U.S. FDA and an application for Conditional Marketing Authorization (CMA) with the European Medicines Agency. The Company has already initiated the rolling review process with the EMA, Health Canada, SwissMedic, the United Kingdom Medicines and Healthcare products Regulatory Agency (MHRA), Ministry of Health in Israel, and Health Sciences Authority in Singapore and intends to seek Prequalification (PQ) and/or Emergency Use Listing (EUL) with the World Health Organization (WHO).

Additionally, Moderna announced that the FDA's Vaccines and Related Biological Products Advisory Committee (VRBPAC) meeting to review the safety and efficacy data package for mRNA-1273 will likely be scheduled for Thursday, December 17. The Company expects that the U.S. Centers for Disease Control and Prevention (CDC) Advisory Committee on Immunization Practices (ACIP) will make a recommendation on immunization priorities. The Company anticipates that the shipping of mRNA-1273 to designated distribution points throughout the U.S. will occur shortly after an Emergency Use Authorization is granted.

Moderna is working with the U.S. CDC, Operation Warp Speed and McKesson (NYSE:MCK), a COVID-19 vaccine distributor contracted by the U.S. government, as well as global stakeholders to be prepared for distribution of mRNA-1273, in the event that it receives an EUA and similar global authorizations and approvals. By the end of 2020, the Company expects to have approximately 20 million doses of mRNA-1273 available in the U.S. The Company remains on track to manufacture 500 million to 1 billion doses globally in 2021. On November 10, the American Medical Association (AMA) issued a Current Procedural Terminology (CPT) code to report vaccination with mRNA-1273 (code: 91301). Moderna recently announced further progress towards ensuring the distribution, storage and handling of the vaccine can be done using existing infrastructure.

To learn more about Moderna's work on mRNA-1273, visit www.modernatx.com/COVID19.