Pfizer says COVID-19 vaccine final result is 95% effective

Nov 18 2020, 4:49 pm

American pharmaceutical corporation Pfizer says the final analysis from its clinical trial of its COVID-19 vaccine confirms it to be 95% effective, has no serious side effects, and can protect the elderly.

The company’s announcement comes a week after it initially revealed promising preliminary results after its Phase 3 trials.

Pfizer is now preparing to formally ask US regulators to allow for the vaccine’s emergency use and distribution.

According to a Wednesday morning press releasePfizer says there had been 170 cases of COVID-19 in its trial, 162 of which were in the “placebo group” and eight who were in the vaccine group.

“Efficacy was consistent across age, gender, race and ethnicity demographics,” says the press release. “The observed efficacy in adults over 65 years of age was over 94%.”

Pfizer Inc. says the Phase 3 study enrolled a total of 43,538 volunteers, 42% of whom had diverse health backgrounds from the US and five other countries. The company says, “no serious safety concerns” had been observed among the participants.

The positive final stage results mean the US company and its German partner, BioNTech, are on track to be the first to release the vaccine. Pfizer says they estimate the ability to produce 1.3 billion doses — enough to vaccinate 650 million people — by the end of 2021.

Roughly 50 million doses are expected to be available before the end of 2020.

“The study results mark an important step in this historic eight-month journey to bring forward a vaccine capable of helping to end this devastating pandemic. We continue to move at the speed of science to compile all the data collected thus far and share with regulators around the world,” said Dr. Albert Bourla, Pfizer Chairman and CEO. “With hundreds of thousands of people around the globe infected every day, we urgently need to get a safe and effective vaccine to the world.”



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