It is done as part of a broad effort to address health care costs and availability. You haven't seen any sign of this because anything favorable to Trump gets very little news coverage. For example, I managed to find one online mention in mainstream news (not sure if it was ever broadcast) that mentions Trump's effort for drug price transparency:

https://www.cbsnews.com/news/pharma-companies-must-reveal-dr...

There is a bunch more that doesn't seem to be in the news at all:

https://www.whitehouse.gov/briefings-statements/president-do...