What can we do after avastin-erbitux? Help

[gul]

Hello,
First, sorry i can't speak germany.
My father is metastastic colon cancer. First its metastas liver, and then now metastas in the lung.
We used all clasic treatment for this. But we dont take any result. Last time we used avastin and then erbitux. But result isnot change.
Now the doctor dont say anything. We spoke a lot of doctor. But all doctors said that "You used everything, we dont make anything now".
Now, we dont know what can we do now. We think maybe we can try vaccine, immunologic, stem cell or genetic treatment for my father's colon cancer.
But we don't know which klinic interest this things in the Belgium or Germany.
Can you give the some information about which treatment we can try now, and which hospital or clinic speasyalist for metastastic colon cancer...
If you can give answer, i will be happy.

Best Regards,
Gül Erme