Drug-makers kicked off 2019 with price increases in the United States on more than 250 prescription drugs, including the world's top-selling medicine, Humira, although the pace of price hikes was slower than last year.

The industry has been under pressure by U.S. President Donald Trump to hold their prices level as his administration works on plans aimed at lowering the costs of medications for consumers in the world's most expensive pharmaceutical market.

During a White House meeting with members of his Cabinet, Trump on Wednesday said he expected to see a tremendous decrease in drug prices. Health and Human Services (HHS) Secretary Alex Azar was at the meeting.