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Photo: George Frey/AFP via Getty Images

The Lancet medical journal retracted a study on Thursday that found that coronavirus patients who took hydroxychloroquine had a higher mortality rate and increased heart problem than those who did nothing, stating that the authors were "unable to complete an independent audit of the data underpinning their analysis."

Why it matters: The results of the study, which claimed to have analyzed data from nearly 96,000 patients on six continents, led several governments to ban the use of the anti-malarial drug for coronavirus patients due to safety concerns.

  • The World Health Organization also temporarily suspended its tests of hydroxychloroquine due to The Lancet study, before resuming them on Wednesday.

The big picture: An investigation by The Guardian found that employees at Surgisphere, the company that The Lancet relied on for its data, had little to no data science or scientific background.

  • “Surgisphere came out of nowhere to conduct perhaps the most influential global study in this pandemic in the matter of a few weeks," one doctor who publishes the results of hydroxychloroquine studies online told The Guardian.
  • It's unclear how Surgisphere was able to get data-sharing agreements with over 600 hospitals worldwide, and many in the scientific community had raised concerns about the reliability of its data.

What they're saying:

Today, three of the authors of the paper, "Hydroxychloroquine or chloroquine with or without a macrolide for treatment of COVID-19: a multinational registry analysis", have retracted their study. They were unable to complete an independent audit of the data underpinning their analysis. As a result, they have concluded that they "can no longer vouch for the veracity of the primary data sources." The Lancet takes issues of scientific integrity extremely seriously, and there are many outstanding questions about Surgisphere and the data that were allegedly included in this study.
— The Lancet

Zoom in: President Trump has frequently touted the use of hydroxychloroquine for COVID-19, turning the debate over the anti-malarial drug into a politically charged issue in the U.S.

  • Hydroxychloroquine prescriptions rose dramatically in March after the drug was brought into the political spotlight by Trump, with hydroxychloroquine and chloroquine fills increasing from 2019 levels by 1,977% between March 15–21.
  • Trump himself took the drug last month after two West Wing staffers tested positive for the virus.

Worth noting: Despite The Lancet's retraction, data from a randomized, placebo-controlled clinical trial published in the New England Journal of Medicine this week found that hydroxychloroquine did not prevent people from getting COVID-19 if they were exposed to the virus. The FDA has also issued a warning that the drug should only be taken in hospitals because of the risk of heart complications.

Go deeper

Updated Dec 4, 2021 - Politics & Policy

Omicron dashboard

Illustration: Shoshana Gordon/Axios

  1. Health: Coronavirus variant surveillance varies widely by state — Omicron cases confirmed in 5 U.S. states America probably won't lead the effort to understand Omicron.
  2. Vaccines: Omicron adds urgency to vaccinating world — Omicron fuels the case for COVID boosters — Moderna loses patent battles tied to COVID vaccine — Pfizer could have vaccine data for children under five by end of 2021, CEO says.
  3. Politics: Nevada to impose insurance surcharge on unvaccinated state workers — New Jersey GOP lawmakers defy statehouse COVID policy — Oklahoma sues Biden administration over Pentagon vaccine mandate — Omicron travel bans are sign of what's to come.
  4. World: WHO: Delta health measures help fight Omicron — COVID cases surge in South Africa in sign Omicron wave is coming — Germany approves new restrictions for unvaccinated people.
  5. Variant tracker: Where different strains are spreading.
Updated 1 hour ago - Politics & Policy

Bipartisan tributes flood in for "giant of the Senate" Bob Dole

Then-Vice President Joe Biden and former Sen. Bob Dole at an event put on by the World Food Program where he was awarded the first “McGovern-Dole Leadership Award” in December 2013. Photo: Douglas Graham/CQ Roll Call

Republican and Democratic politicians, including former Senate colleagues, are sharing condolences and memories commemorating the life of Bob Dole, who passed away at 98 on Sunday morning.

The big picture: Dole, the Republican presidential nominee in 1996, was the longest serving Republican leader in the Senate until 2018, when current Senate Minority Leader Mitch McConnell surpassed his record.

Former Sen. David Perdue to launch bid for Georgia governor

Photo: Megan Varner/Getty Images

Former Senator David Perdue (R) plans to announce a campaign against Georgia's incumbent Republican Gov. Brian Kemp Monday, according to a source familiar with Perdue's thinking.

Why it matters: Perdue's challenge to his former ally Kemp sets up an unprecedented "scorched earth" battle between Georgia Republicans fueled by former President Donald Trump, in the battleground state. The news was first reported by Politico.