Yes- I do have a number of patients ask; and because of that, I posed it to our GI physician whom is part of our immune toxicity team. Please do not quote me on this until I can get more of a definitive repose, but for now, he tells me that there is very little data supporting its use in prevention of ICI associated colitis.

The GUT microenvironment is a hot topic right now- so I suspect there will be more published data in the near future. In the meantime, I will see if I can get more of a data supported answer to this question; it is a good one!