Sorry to hear the MD Anderson visit went like that.
I would consult any of the clinical trials centers in TX that are not the MD Anderson, for them to check if some immunotherapy-based trial is available for your case.
Texas Oncology, P.A. - Austin Recruiting
Austin, Texas, United States, 78705
Principal Investigator: Jason Melear
Mary Crowley Cancer Research Centers Recruiting
Dallas, Texas, United States, 75230
Principal Investigator: John Nemunaitis
Texas Oncology, P.A. - Fort Worth Recruiting
Fort Worth, Texas, United States, 76104
Principal Investigator: Stephen Richey
Oncology Consultants, P.A. Active, not recruiting
Houston, Texas, United States, 77030
University of Texas M. D. Anderson Cancer Center - Investigational Cancer Therapeutics Recruiting
Houston, Texas, United States, 77030
Contact: Alphi Kuriakose 713-794-4625
avkuriakose@mdanderson.org Principal Investigator: Aung Naing
South Texas Accelerated Research Therapeutics, LLC Recruiting
San Antonio, Texas, United States, 78229
Principal Investigator: Kyriakos Papadopoulos
Cancer Care Network of South Texas - SAT&BC-M oak Recruiting
San Antonio, Texas, United States, 78258
Principal Investigator: Sharon Wilks
Texas Oncology, P.A. - Tyler Recruiting
Tyler, Texas, United States, 75702
Principal Investigator: Donald Richards
Those are the location, for example, for this trial:
https://clinicaltrials.gov/ct2/show/study/NCT02517398That is an immunotherapy, same trial ongoing at the National Cancer Institute in Bethesda, Maryland. Many locations in TX.
You can find others in the Clinical Trial finder in my signature.
It might be tricky to find a trial that doesn't ask for prior failure of other lines of therapy, but it is not impossible.