Wednesday, Dec. 23, 2020
Did developers of the two recently-approved COVID-19 vaccines include elderly subjects in their testing?
With people over 65 accounting for 80% of U.S. COVID-19 fatalities, understanding the efficacy and safety of potential vaccines among the elderly is especially important.
The founder of BioNTech SE, which developed the first approved vaccine in partnership with Pfizer Inc., said the vaccine “appears to work” in the higher-risk elderly population, with 94% effectiveness in trial subjects over 65, according to the Los Angeles Times. In the companies’ large-scale trial, 42% of enrollees were over 55.
An early “investigational” trial of the Moderna Inc. vaccine, which was developed in collaboration with the National Institutes of Health, included 40 subjects over 55 years old (20 of whom were over 70), and confirmed that the response was similar to that in younger age groups. In the later-stage larger trial, 25% of participants were over 65.
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Sources
- Los Angeles Times: Pfizer says further data show its COVID-19 vaccine is 95% effective, works in older people
- New England Journal of Medicine: Safety and efficacy of the Pfizer vaccine (see table 1)
- National Institutes of Health: Investigational COVID-19 vaccine well tolerated in older adults
- Moderna: Phase 3 COVE (‘Coronavirus Efficacy and Safety’) Study—demographics of participants
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Fact briefs are bite-sized, well-sourced explanations that offer clear "yes" or "no" answers to questions, confusions, and unsupported claims circulating online. They rely on publicly available data and documents, often from the original source. Fact briefs are written and published by Gigafact contributor publications.
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