What kind of monoclonal antibody is used for treatment bile duct cancer?

Nothing good yet: There is as of yet, no proven monoclonal antibody(moab) for this type of cancer. For some of the GI cancers, anti-egfr antibody like cetuximab(erbitux) has been modestly useful. You can ask your oncologist whether he/she will consider adding this moab to your chemotherapy regimen in case you are still on chemo or being offered chemotherapy with Cisplatin and gemcitabine.