My father is diagnosed with stage 4 advanced liver cancer with primary site Pancreas (cholangiocarcinoma). Have given 4 cycles of going, and then 4 cycles of Nanopacli. After these cycles, reports and scan was done. No changes. And hence we decided to stop chemotherapy. Now, after 2 months, back pain has increased and becomes intolerable at night. What shall we do and should we continue chemotherapy? Please advice.