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- Pfizer Inc PFE and BioNTech SE BNTX announced topline results from a Phase 3 trial evaluating the efficacy and safety of a 30-µg booster dose of its COVID-19 vaccine.
- Related: Pfizer/BioNTech COVID-19 Boosters For Seniors, Certain Vulnerable Adults Coming Soon - CDC Panel Recommends.
- Data from a large study showed that the booster dose restored efficacy to 95.6% against the virus, including the Delta variant.
- The companies said the trial was not peer-reviewed, tested 10,000 participants aged 16 and older, and found that the booster shot had a favorable safety profile.
- There were 5 cases of COVID-19 in the boosted group and 109 cases in the non-boosted group during the study period.
- Related: Oxford-Led Study Shows Efficacy Of COVID-19 Vaccines Dwindles Over Time Against Delta Variant.
- The Companies said that the median time between the second dose and the booster shot or the placebo in the study was around 11 months.
- The median age of the participants was 53 years, with 55.5% of participants between 16 and 55 years, and 23.3% at 65 years or older.
- Related: FDA Approves 'Mix And Match' COVID-19 Shots.
- Price Action: PFE shares are down 0.71% at $42.49, BNTX stock is up 5.27% at $283.4, during the market session on the last check Thursday.
- Photo by x3 from Pixabay
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