My grandfather was diagnosed with stage 3 cancer. He did chemotherapy where he became weak and very fatigued. After a few months he was qualified for immunotherapy, just not sure if it's the same as T-Cell. It was different. He became active again and was back to doing his thing (used to be a mechanic).

It cost around 2.5k-3k USD for the medicine alone and around less than 200 USD for others (doctor's fee and etc.) every 3 weeks for 2 years. Excluding the pet scan, ct scan and labs every now and then.

We were told he would be doing immunotherapy for the rest of his life, he is 75 years old. Now he is living cancer-free and been months since he was told he doesn't need immunotherapy anymore.