DENVER — Colorado has become the first state in the nation to implement a prescription drug price cap, targeting Enbrel, an expensive injectable medication used to treat several autoimmune conditions.

On Friday, the Colorado's Prescription Drug Affordability Review Board (PDAB) set the cap at $600 for a 50-milligram dose of Enbrel, which adults typically take weekly. Over the course of a year, this amounts to $31,200 — significantly less than what insurance companies and patients have been paying.

According to 2023 data from the Board, insurance companies paid approximately $53,000 annually for each customer using Enbrel, while patients paid about $4,600 out of pocket each year.

Since the drug was introduced in 1998, its wholesale price has increased more than 1,500%.

The cap comes a

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