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Clinical trials don’t enroll enough black participants, even when they’re testing drugs for treatments that disproportionately affect African-Americans, according to a ProPublica analysis.

Why it matters: It’s not entirely clear why some diseases affect different populations differently, but those differences are an important part of understanding whether a particular treatment is safe and effective — exactly what clinical trials are supposed to test.

By the numbers: In most of the trials ProPublica surveyed, fewer than 5% of participants were black — compared with more than 13% of the U.S. population.

  • The results weren’t much better even for treatments that could disproportionately benefit black people, such as multiple myeloma and prostate cancer. These are more prevalent among African-Americans, yet black enrollment in trials for those drugs still often sat around 2% or 3%.

Go deeper: NIH launches massive program to diversify medical research.

Go deeper

Updated 8 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Eniola Odetunde/Axios

  1. Health: Most vulnerable Americans aren't getting enough vaccine information — Fauci says Trump administration's lack of facts on COVID "very likely" cost lives.
  2. Politics: Biden unveils "wartime" COVID strategyBiden's COVID-19 bubble.
  3. Vaccine: Florida requiring proof of residency to get vaccine — CDC extends interval between vaccine doses for exceptional cases.
  4. World: Hong Kong to put tens of thousands on lockdown as cases surge.
  5. Sports: 2021 Tokyo Olympics hang in the balance.
  6. 🎧 Podcast: Carbon Health's CEO on unsticking the vaccine bottleneck.

Trump impeachment trial to start week of Feb. 8, Schumer says

Senate Majority Leader Chuck Schumer. Photo: The Washington Post via Getty

The Senate will begin former President Trump's impeachment trial the week of Feb. 8, Majority Leader Chuck Schumer announced Friday on the Senate floor.

The state of play: Schumer announced the schedule after reaching an agreement with Republicans. The House will transmit the article of impeachment against the former president late Monday.

10 hours ago - Health

CDC extends interval between COVID vaccine doses for exceptional cases

Photo: Joseph Prezioso/AFP via Getty

Patients can space out the two doses of the coronavirus vaccine by up to six weeks if it’s "not feasible" to follow the shorter recommended window, according to updated guidance from the Centers for Disease and Control and Prevention.

Driving the news: With the prospect of vaccine shortages and a low likelihood that supply will expand before April, the latest changes could provide a path to vaccinate more Americans — a top priority for President Biden.