FDA approval or EUA is the next logical step; odds are the study doctors are seeing drastic recoveries and they realize it isn't a saline injection that's responsible. These doctors would be clamoring for eINDs from the FDA for every CD12 / severe or critical patient they have.
Of course CD10 / mild or moderate isn't a basis for expanded access; FDA has already approved several weak medications for CD10 mild/moderate... Leronlimab is the Elixir of Life, it needs to be saved for those that have been failed by everything else.