>I'm certain that Big Pharma doesn't like these treatments.
You would be certainly wrong on that part. Immuno-oncology has been "Big Pharma's" major focus for the past 5-10 years, inspired in no small part by the work of Rosenburg and many others. One of the most recent approvals discussed on HN was for a CAR T-cell targeted against CD19. Big Pharma would also be very happy to sell immune checkpoint inhibitors for use in combination therapy with adoptive cell transfer.