Going straight to Phase 4 from Phase 2 is rarely done but it is possible. Our new FDA is supposedly going to be more aggressive in getting life changing medications approved. This would be a good chance for the new administration to prove that they mean what they say.

For those unfamiliar with Phase 4...
"The phase 4 trial is also referred to as post marketing surveillance and as the name suggests, it is conducted after the drug is already marketed and available to the general public. The main objective of the phase 4 trial is to check the drug's performance in real life scenarios, to study the long-term risks and benefits of using the drug and to discover any rare side effects."
- https://www.news-medical.net/health/What-is-a...Trial.aspx