FDA authorizes Merck COVID-19 pill © Getty Images The Food and Drug Administration (FDA) on Thursday authorized a COVID-19 treatment from Merck, marking the second pill to become available to fight the virus. This authorization is more limited than one on Wednesday for a Pfizer pill. The FDA authorized the Merck pill, developed with Ridgeback Biotherapeutics, for high-risk adults "for whom alternative COVID-19 treatment options authorized by the FDA are not accessible or clinically appropriate." That is, if other options are not available, the Merck pill can be used. The drug is also only authorized for adults over the age of 18, as it "may affect bone and cartilage growth." There are also concerns that the Merck drug could cause birth defects if used during pregnancy, so the FDA said the drug is not recommended for use during pregnancy. Antivirals are seen as potentially critical weapons in the fight against COVID-19, because they can be taken at home, without an IV or injection. But from the data, the benefit of molnupiravir appears very limited. In a clinical trial, a five-day course of the pill was shown to be only modestly effective– initially a 50 percent reduction in risk of hospitalization or death, but the company later revised it down to 30 percent. By comparison, Pfizer's drug was 89 percent effective at reducing severe illness or death. But the advantage over Pfizer's drug, authorized on Wednesday, is in the numbers. The White House said Wednesday that 3 million courses of the Merck pill would be available in January, compared to 265,000 for Pfizer. Testing challenge: Like the Pfizer pill, the Merck pill is also intended to be used within five days of symptoms beginning. That poses some logistical challenges, given that testing will need to be widely available enough that people can get their results back and seek the treatment from a health care provider within five days. Read more here. |
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