Waiting for phased trials when you understand the research and hypothetical risks is torture. Especially when many drugs have proven safety profiles where the only harm is financial.
This particular drug was just a combination of two already-approved generic drugs. Anyone could have tried them with a doctor's Rx without a change in the law.
The FDA has been 'working' on authorizing sunscreen widely used in the rest of the developed world for the last 20 years, or since the original Dubya administration. This is not a typo. They are glacially, bureaucratically slow & cautious
It's sad that the drug didn't work (and I had a cousin recently die of ALS), but it's important to let the FDA do their work.