I can't find the specific post I need to clarify the status of the various trials, but I found something close. I believe the person I contacted was with the IMPACT group, conducting the RATinG study of aGvHD.
"IMPACT is going to do an interim assessment of the first 20 patients who get enrolled in their 18 treatment centers.
"The first stage of the trial is expected to treat 20 participants with lenzilumab before conducting an interim assessment of safety, efficacy, and feasibility."
So it may not take long for the data monitoring committee to collect and review data from 20 patients, from 18 sites, and making a recommendation to a second trial stage. Maybe we'll hear something about that CMML patient who progressed to needing aGvHD to be cured of his cancer."