The cost of all but one of the 49 top-selling brand-name drugs included in a new JAMA study increased between 2012 and 2017.

By the numbers: The median cost increase of the drugs over these 6 years was 76%, and most drugs saw cost increases once or twice a year.

  • The results suggest that costs for popular branded drugs will double every 7 to 8 years.

Caveat: The study uses data from the Blue Cross Blue Shield Axis, which includes data from 35 million privately insured people. It did not account for rebates, which can't be linked to individual claims.

  • But it did compare its results with third-party estimates of net price data for each drug, and found that there was high correlation between net prices and costs.
  • "This association suggests that the offered supposition that higher list prices and greater reliance on rebates reduce costs may be untrue," the authors write.

Key quote: "Competition among brand-name competitors appeared to do little to stymie rising costs."

  • "Instead, products that may be prescribed interchangeably ... were highly synchronized in relative cost changes while demonstrating some of the largest cost increases in the industry over the past 6 years."

Go deeper: The drug pricing maze

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Obama: The rest of us have to live with the consequences of what Trump's done

Photo: Joe Raedle/Getty Images

Campaigning for Joe Biden at a car rally in Miami on Saturday, Barack Obama railed against President Trump's response to the coronavirus pandemic, saying "the rest of us have to live with the consequences of what he's done."

Driving the news: With less than two weeks before the election, the Biden campaign is drawing on the former president's popularity with Democrats to drive turnout and motivate voters.

Murkowski says she'll vote to confirm Amy Coney Barrett to Supreme Court

Sen. Lisa Murkowski. Photo: Alex Edelman/AFP via Getty Images

Sen. Lisa Murkowski (R-Alaska) said Saturday that she'll vote to confirm Judge Amy Coney Barrett to the Supreme Court on Monday, despite her opposition to the process that's recently transpired.

The big picture: Murkowski's decision leaves Sen. Susan Collins (R-Maine) as the only Republican expected to vote against Barrett.