Did you have the feeling that they had other patients on this trial and that they were doing well? (I was contemplating clinical trials myself, and this one is nearby. I don't know if my tumor is PRAME positive.)

There are lots and lots of clinical trials on ovarian cancer, more than for endometrial. It is somewhat bewildering. You can look them up on clinicaltrials.gov, although that tends to be a bit out of date. Individual hospitals/cancer centers usually have a listing of their own trials, and these are often more up to date.