Data Exclusivity is a kind of super-patent in that it can't be challenged or revoked: if a drug company has run clinical trials to establish the safety of its new drug, it has an absolute and irrevocable monopoly on the use of that data.
It will make the cost of medications for those whom are at a financial disadvantage, even more at a point where affordable pharmaceuticals cannot be had.
Tell POTUS to say "NO!" to "DATA EXCLUSIVITY" in the Trans Pacific Partnership Agreement...