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The end of the paxlovid era? Why two new negative trials are great news

Jeremy Faust delivers a counterintuitive and deeply humanizing analysis of recent clinical trials, arguing that the failure of Paxlovid to prevent hospitalizations is not a medical defeat, but a historic victory for public health. While headlines might scream "drug failure," Faust reframes the data to reveal a world where the virus itself has been tamed by immunity, rendering the once-critical medication largely obsolete for the general population. This is a story not about a drug losing its power, but about humanity winning the war against the virus's lethality.

The Real Lede: Zero Deaths

The most striking element of Faust's piece is his refusal to treat the negative trial results as a disappointment. Instead, he zeroes in on the most profound statistic: in two massive randomized controlled trials involving over 4,000 high-risk adults, there were no deaths from any cause, regardless of whether the patients received the antiviral or standard care. "Zero deaths from any cause in the study, regardless of which group the patients were in," Faust writes, noting that the realization made the hair on his arms stand up. He argues that this outcome is the true headline, suggesting that the baseline risk of death has plummeted so low that even a highly effective drug cannot statistically demonstrate a further reduction.

The end of the paxlovid era? Why two new negative trials are great news

This framing is powerful because it shifts the metric of success from "did the drug work?" to "how safe is our world now?" By contrasting the current 0.77% hospitalization rate with the 6.53% rate seen in the 2022 EPIC-HR study, Faust illustrates that time and immunity have done more to reduce risk than the medication ever could. He notes that in the earlier study, one in fifteen people faced severe outcomes, whereas now, only one in 130 does. "Time does not need to be prescribed. And it's free," he observes, a line that elegantly captures the shift from a crisis of scarcity to a reality of abundance in public health safety.

"We're simply living in a better world than the one where Paxlovid was life-saving."

The Paradox of Success

Faust tackles the psychological difficulty of accepting this news. He acknowledges that many experts and patients are clinging to the drug's utility, engaging in what he describes as "Five Stages of Grief-type bargaining." He dismantles four common arguments used to defend Paxlovid's continued widespread use. First, he addresses the claim that the drug improves symptoms, pointing out that the recent trials were unblinded, likely inflating the perceived benefit through the placebo effect. He contrasts this with the blinded EPIC-SR study, which found no difference in symptoms, stating, "You abide by the better one—in this case the one with blinding and a placebo."

Second, he refutes the idea that the new trials were "underpowered," reminding readers that the study was actually 50% larger than the original pivotal trial. Even if the study were expanded to 50,000 people to find a tiny statistical benefit, Faust argues the cost-benefit ratio would be absurdly high. "The fraction of patients benefiting would be so small, that it would cost many hundreds of thousands of dollars worth of Paxlovid to save a single hospitalization," he writes. This economic reality check is crucial for policymakers who must allocate limited resources.

Critics might argue that dismissing the drug entirely ignores the nuances of individual patient needs, particularly for those with complex comorbidities not fully captured in aggregate data. However, Faust counters that even among the immunocompromised—the group most likely to benefit—the hospitalization rate was so low (1%) that the drug showed no statistical advantage over standard care. "If you'd told me last year that PANORAMIC would show such a low hospitalization rate in immunocompromised patients with Covid-19, I'd have been dancing on the rooftops," he admits, highlighting that the success of the immune system, not the drug, is the primary driver of survival.

The Long Shadow of Rebound and Delay

The commentary also turns a critical eye toward the pharmaceutical landscape and the lingering risks of the drug. Faust warns that in the absence of significant benefits, the downsides of Paxlovid—such as side effects and the phenomenon of "rebound," where symptoms return after initial improvement—become the dominant considerations. He notes that while longer courses might reduce rebound, the data remains uncertain. "I'm reasonably convinced that Paxlovid causes rebound far more often than Pfizer initially acknowledged," he states, adding a layer of caution to the drug's legacy.

Perhaps the most unsettling part of the analysis is the timeline. Faust uncovers a "billion-dollar delay," revealing that the data for these trials was collected over two years ago, yet the publication was delayed until recently. He traces the manuscript's journey, noting it was submitted to the New England Journal of Medicine in early 2025 and sat in revision for a year. "What on Earth took a year after that?" he asks, pointing to a pulled preprint and a lack of transparency from the publisher. This delay, he suggests, allowed the drug to continue being sold and prescribed on outdated assumptions long after the evidence had shifted.

"Clinging to Paxlovid is less scientific than nostalgic."

This observation cuts to the heart of the article's emotional core. Faust suggests that the attachment to the drug is a relic of a darker time when we desperately needed a miracle. He draws a parallel to the concept of herd immunity, reminding readers that the collective safety we enjoy now is the result of billions of individual immune responses, a phenomenon that has rendered the acute-phase antiviral less critical than it was during the early waves of the pandemic.

Bottom Line

Jeremy Faust's analysis is a masterclass in reframing negative data as a positive societal outcome, proving that the best news in medicine is sometimes the news that a drug is no longer needed. While his dismissal of Paxlovid's utility for the general population is robustly supported by the data, the article leaves a lingering question about the transparency of the publication process and the specific protocols for the most vulnerable immunocompromised patients. The strongest takeaway is not just that the virus is less deadly, but that our definition of medical necessity must evolve as the threat landscape changes.

Deep Dives

Explore these related deep dives:

  • Herd immunity

    The article argues that the collective protection gained from prior infections and vaccinations has rendered the drug's mortality-reduction benefits obsolete, making this concept the primary driver behind the study's zero-death outcome.

  • Variants of SARS-CoV-2

    Understanding the specific decline in severe disease rates caused by vaccination is essential to grasping why the placebo group in the new trials faced such a low risk of hospitalization compared to the 2022 EPIC-HR study.

  • Mumps

    This phenomenon explains the paradoxical possibility that Paxlovid could become more useful in the future if population immunity drops, a nuance the author highlights when discussing the shifting utility of the drug over time.

Sources

The end of the paxlovid era? Why two new negative trials are great news

by Jeremy Faust · Inside Medicine · Read full article

Much will be said about the PANORAMIC and CanTreatCOVID trials, which were finally published as a single paper in the New England Journal of Medicine (NEJM) last week. The big takeaway will be that in two major randomized controlled trials conducted in the United Kingdom and Canada, Paxlovid failed to decrease hospitalizations or deaths in adults with risk factors for severe Covid-19 outcomes.

Let me state this clearly. This is historically good news.

Yes, the fact that two major studies conducted in 2022-2024 failed to show this benefit for Paxlovid is cause for celebration.

To understand why, we can’t bury the real lede here—and I want you to think about this carefully: the studies randomly divided 4,038 higher-risk adults (age ≥50 years or ≥18 years with coexisting conditions, ~98% of whom were vaccinated) with newly diagnosed Covid-19 either to receive Paxlovid or not (i.e., to receive usual care). There were zero deaths from any cause in the study, regardless of which group the patients were in. Zero.

As I typed that, the hair on my arms literally stood up. I’m actually getting a little choked up here, friends. So, join me in reading that paragraph again, because those words should make your heart rejoice. Covid-19 is no longer the massive mortality threat it once was. It’s nowhere near the hospitalization threat either. In the new paper, only 1 in 130 needed to be hospitalized (0.77%). In contrast, in the blockbuster 2022 EPIC-HR study—the one that showed Paxlovid decreased deaths and hospitalizations by 89%—the rate of death or hospitalization in the placebo group was 6.53%, or 1 in 15 people. That’s an 88% reduction in risk. In other words, time (and what comes with it) has reduced the risk of Covid-19 as much as Paxlovid ever did. Time does not need to be prescribed. And it’s free. Or, to quote Maya Angelou: our passages have been paid. We’re simply living in a better world than the one where Paxlovid was life-saving.

Aside: Comparing papers like these can be a little dicey because the study populations are different, to varying degrees. In this case, the average age of PANORAMIC and CanTreatCOVID participants was older (average=55 years) than EPIC-HR (average= 46 years). On the other hand, it’s important to note that a great many extremely high-risk patients had already died of Covid-19 by 2022-2024. That means that in the future, a drug like ...