Moderna said preliminary phase three trial data shows its coronavirus vaccine is more than 94% effective in preventing Covid-19 — a result CEO Stephane Bancel called a “game-changer.”
The analysis evaluated 95 confirmed Covid-19 infections among the trial’s 30,000 participants. Moderna, which developed its vaccine in collaboration with the National Institute of Allergy and Infectious Diseases, said 90 cases of Covid-19 were observed in the placebo group versus 5 cases observed in the group that received its two-dose vaccine. That resulted in an estimated vaccine efficacy of 94.5%, it said.
Shares of the company jumped by more than 11% in premarket trading.
The announcement follows on the heels of similar news last week from Pfizer’s late-stage Covid-19 vaccine trial as pharmaceutical companies across the world race against the clock to find ways to prevent the virus, which has spread to more than 54.4 million people, killing more than 1.3 million.
“This is a pivotal moment in the development of our COVID-19 vaccine candidate,” Bancel said in a statement. “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. 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.”
The Cambridge, Massachusetts-based company also said there were no “significant” safety concerns, adding the vaccine was generally safe and well-tolerated with the majority of adverse events in participants being labeled as mild or moderate. Side effects included pain at the injection site and, after the second dose, fatigue, muscle pain and headaches.
“Knowing that we have a vaccine that would help more people who would take it is just a wonderful feeling,” Bancel said in an interview with CNBC. “As you know a lot of people have been reluctant in surveys to take a vaccine because I think we’re worried about the politicization of a vaccine, they’re worried about what you get with a flu shot you know 50% to 60% efficacy.”
With an efficacy rate of 95%, “that’s a game-changer, I believe,” he said.
Investors were expecting Moderna’s vaccine to be highly effective after Pfizer, another frontrunner in the Covid-19 vaccine, said last week that its vaccine was more than 90% effective. Moderna’s candidate, like that of the Pfizer-BioNTech partnership, is using messenger RNA, or mRNA, technology. It’s a new approach to vaccines that uses genetic material to provoke an immune response.
Moderna said Monday its vaccine remains stable at 36 to 46 degrees Fahrenheit, the temperature of a standard home or medical refrigerator, for up to 30 days. It can be stored for up to six months at negative 4 degrees Fahrenheit. By comparison, Pfizer’s vaccine requires a storage temperature of minus 94 degrees Fahrenheit.
Moderna told investors on Oct. 29 that it was “actively preparing” for the global launch of its potential vaccine after completing enrollment in its trial a week earlier. It said about 37% of the participants were from minority communities and 42% had other conditions or ages that put them at high risk of severe disease. Males outnumber females in the trial by 53% to 47%.
Out of the 95 Covid-19 cases, 20 participants identified as being from “diverse” communities, including 12 Hispanic people, four African Americans, three Asian Americans and one multiracial.
Moderna said it plans to apply for emergency use authorization with the Food and Drug Administration in “the coming weeks.” The trial will continue to accrue additional data relevant to safety and efficacy even after an application is submitted, the company said.
By the end of the year, Moderna expects to have approximately 20 million doses of the vaccine ready to ship in the U.S., the company said. It said it remains on track to manufacture 500 million to 1 billion doses globally in 2021.
The company already has supply agreements in North America, the Middle East and in other regions of the world. It announced in August that it had reached a deal with the U.S. government to supply 100 million doses of its vaccine. The deal gives the federal government the option to purchase up to 400 million additional doses. The U.S. had already invested $955 million in Moderna’s Covid-19 vaccine development, bringing its total investment up to $2.48 billion, the company said at the time.
In August, Moderna said it was charging between $32 and $37 per dose for its vaccine for some customers, under cheaper “pandemic pricing.” The company said it was in discussion for larger volume agreements that will have a lower price.
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