I am not sure, I would recommend reaching out to St. Jude’s NB department. They have been running this for quite a while. I recall this talk a couple of years ago. The work in St. Jude’s triggered the current COG trial.
The tricky thing is that they have access to a more potent immunontherapy drug.
MSK previously tried non humanized 3f8 with chemo and it did not work, I think they are going to be trialing it again soon with hu3f8.
https://clinicaltrials.gov/ct2/show/NCT03189706
This trial though is for relapse/refractory.