WASHINGTON—Drugmakers hiked U.S. prices on 7 of the 10 costliest prescription drugs in 2020 without justification, increasing drug spending by $1.67 billion, a U.S. group that reviews the value of medicines said on Tuesday.
AbbVie Inc.’s widely used Humira rheumatoid arthritis drug accounted for the majority of the spending increase, with a net price increase of 9.6 percent leading to an almost $1.4 billion increase in U.S. spending.
