In both sets of people in the study, the cancer was shown to be stopped.
There is nothing wrong with restarting therapy if a future test or scan shows a change.
Grade 3 or worse issues definitely happened a lot more with unlimited antibody use.
“...both sets of people in the study, the cancer was shown to be stopped...”
Stopped for how long? Wife’s Dr indicated if she stopped immunotherapy her cancer could regrow to its former size within a year. He had no history as to whether restarting immunotherapy afterwards would work a second time.
That’s not a risk we’re willing to take.