This reminds me of the recent Phase 2 failure of UBX's UBX0101 senolytic drug. The highly experienced team's entire strategy was built around eliminating as much risk as possible prior to Phase 2 and yet they still failed miserably. Biotech just seems brutal, from the outside at least.
For a very interesting but pre-failure interview of UBX: https://peterattiamd.com/neddavid/