And let's not forget that these great results were from Phase 1 SAFETY trials, they were not even optimized as to dosage size and schedule.
Here is a Phase 1 trial definition, for those who are DD-impaired.
Phase 1 clinical trials are done to see if an experimental medication or treatment is safe. After a treatment is tested in the lab or on animals, it enters a phase 1 clinical trial that is done with humans. These trials usually involve only a small number of people to determine if a drug or treatment is safe, and to determine the best dose of a drug and how it should be given (whether orally or intravenously).