FDA chief admits he oversold COVID-19 plasma effectiveness
Scientists were immediately skeptical when Food and Drug Administration chief Stephen Hahn, Health Secretary Alex Azar, and President Trump announced Sunday evening that the FDA had given emergency use approval for plasma from recovered COVID-19 patients, right before the Republican National Convention. And they were baffled when all three men claimed plasma had been shown to reduce deaths by 35 percent, meaning, Hanh said, that 35 out of 100 COVID-19 patients "would have been saved because of the administration of plasma."
That impressive statistic was evidently excavated from a small subsample of a large observational study from the Mayo Clinic, and it doesn't mean what Trump, Azar, and Hahn said it does. Hahn and whoever else came up with the number "appeared to have mixed up absolute risk and relative risk, which are basic concepts in economics and in the presentation of data from clinical trials," The Washington Post notes, explaining:
After facing criticism from incredulous medical scientists, Hanh acknowledged his error:
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Scientists have reasonable hopes that convalescent plasma, a century-old treatment, will be effective at helping COVID-19 patients recover, at least until a reliable treatment is found or developed. But so far the evidence is "still very low-quality" and "not conclusive, World Health Organization chief scientist Dr. Soumya Swaminathan cautioned Monday.
It isn't really the exaggeration of plasma's benefits that worry medical experts, The New York Times reports. It's that, given how "Trump has appeared to politicize the process of approving treatments and vaccines for the coronavirus," nobody will believe "the scientific judgment of the FDA" when it says a vaccine is safe and effective.
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Peter has worked as a news and culture writer and editor at The Week since the site's launch in 2008. He covers politics, world affairs, religion and cultural currents. His journalism career began as a copy editor at a financial newswire and has included editorial positions at The New York Times Magazine, Facts on File, and Oregon State University.
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