For those who are looking for a trial right now, you should check whether you may be eligible for the following:
http://www.clinicaltrials.gov/ct2/show/NCT01967823
In the initial trial, 4 out of 6 synovial sarcoma patients responded:
http://jco.ascopubs.org/content/29/7/917
In this trial, the method used to produce the anti-NYESO-1 is slightly different and may lead to even better results.
As with previous trial, patients must be HLA-A*0201 positive :-(