Continuous hepatic arterial infusion chemotherapy for liver metastasis from biliary tract and pancreatic cancers

Background: The efficacy of intrahepatic arterial chemotherapy for liver metastasis from biliary tract or pancreatic cancer remains uncertain. Patients and Methods: Five patients with bilio-pancreatic liver metastasis underwent continuous hepatic arterial infusion chemotherapy. One treatment course basically consisted of a 14-day infusion period during which continuous infusions of 5-fluorouracil and intermittent bolus injections of cisplatin were given, and a subsequent 14-day intermission. After two consecutive courses, these drugs were administered bi-weekly. Results: One complete and three partial responses were observed (response rate, 80%). In responders, the responses persisted until or even after the cessation of chemotherapy. The median survival was 15 months after the start of chemotherapy. The longest survivor has been disease-free for 46 months since a liver tumour remaining despite chemotherapy was eradicated by further treatment. Toxicity was acceptable. Conclusion: 5-Fluorouracil and cisplatin-based continuous hepatic arterial infusion chemotherapy may serve as a promising treatment for bilio-pancreatic liver metastasis.