But the report, on the experiences of 13 patients, found that the drug had no benefit for some people and that some who benefited said the improvement didn’t last.
Can Paxlovid treat long Covid? A new report suggests it might help some patients, but which patients might benefit remains unclear.
The report, published Monday in the journal Communications Medicine, describes the cases of 13 long Covid patients who took extended courses of the antiviral drug. Results were decidedly mixed: Nine patients reported some improvement, but only five said it lasted. Four reported no improvement at all.
Perhaps more than anything, the report underscores that nearly five years after the pandemic began, there is still little known about what can help the millions of people with long Covid. While some people improve on their own or with various therapies and medications, no treatment has yet been shown to be widely successful.
“People with long Covid are eager for treatments that can help,” said Alison Cohen, an epidemiologist at the University of California, San Francisco, who is an author of the new report and has long Covid herself. “There’s been a lot of research, but it continues to be slow going.”
Paxlovid, made by Pfizer, is considered a tantalizing prospect because it can prevent severe illness during active Covid infections and because patients who take the five-day course during the infection have been less likely to develop long Covid later.
In addition, a theory that some long Covid cases may be caused by remnants of virus in the body suggests that an antiviral like Paxlovid might vanquish those symptoms by extinguishing lingering virus.