Hi Kathy,
My daughter has had Gem/Cis and 5-FU with good shrinkage. Her doctor then switched her to just Gemzar and 5-FU. I think she had better shrinkage with the Cisplatin, but it is a rough chemo that is hard to take for long periods of time and can cause kidney problems.. She then had Xeloda and Oxaliplatin, but had an allergic reaction to Oxaliplatin on the 6th infusion. So now she is just on Xeloda. Her Oncologist is thinking of putting her back on Gemzar after her scan. I think any chemo has a better chance of causing tumor shrinkage than no chemo at all. I think a positive attitude helps as well. I am hoping your Dad continues to do well.
-Pam