title: Phase II study of systemic gemcitabine chemotherapy for advanced unresectable hepatobiliary carcinomas.
abstract: OBJECTIVE
  Patients with advanced unresectable hepatobiliary carcinomas have a dismal prognosis. The efficacy of systemic chemotherapy in these patients is negligible and often, in particular in patients with hepatocellular carcinomas, the toxicity of chemotherapy outweighs the potential palliative effect of antineoplastic agents. Gemcitabine is a new anticancer agent with a mild toxicity profile, which has demonstrated antineoplastic activity in many solid tumors. Therefore we investigated the effect of gemcitabine in patients with advanced nonresectable hepatocellular and cholangiocellular carcinomas in a phase II study.
  
  
  METHODS
  Twenty-three patients with cholangiocellular carcinoma and 20 patients with hepatocellular carcinoma were enrolled into the study. Eighteen of the 20 patients with hepatocellular carcinomas had liver cirrhosis. Gemcitabine was administered once weekly over 30 min for 3 consecutive weeks out of every 4 weeks. Patients with cholangiocellular carcinomas received gemcitabine also in the forth week of the first cycle with no rest to the following cycle. Disease status was assessed every 4 weeks.
  
  
  RESULTS
  Overall the regimen was well tolerated. The median number of gemcitabine administration was 15 (range, 3-37) in the group of patients with cholangiocellular carcinomas and 7.6 (range, 3-21) in the group of patients with hepatocellular carcinomas. In the group of patients with hepatocellular carcinomas thrombocytopenia was the most frequent side effect (30% grade 3/4). Among the patients with cholangiocellular carcinomas nausea and neutropenia were the most commonly observed side effects. The overall response rate of hepatocellular carcinomas was only 5% and chemotherapy generally did not improve the tumor symptoms of the patients in this group. In contrast, in the group of cholangiocellular carcinomas, seven patients achieved a partial response (overall response rate 30%). Eleven patients with cholangiocellular carcinomas revealed tumor symptoms before the onset of gemcitabine treatment. Seven of these patients developed a treatment related clinical benefit as defined as a relief of tumor symptoms or gain of weight.
  
  
  CONCLUSIONS
  Our results indicate that the treatment of cholangiocarcinomas with gemcitabine is effective and should be further evaluated in phase III studies. In contrast, palliative chemotherapy with gemcitabine cannot be recommended in patients with hepatocellular carcinoma and liver cirrhosis.
authors.affiliation: Department of Gastroenterology and Hepatology, Medizinische Hochschule Hannover, Carl Neuberg Strasse 1, 30625 Hannover, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Kubicka
authors.forename: K L
authors.initials: KL
authors.lastname: Rudolph
authors.forename: M K
authors.initials: MK
authors.lastname: Tietze
authors.forename: M
authors.initials: M
authors.lastname: Lorenz
authors.forename: M
authors.initials: M
authors.lastname: Manns
mesh_terms: D000328:Adult; D000368:Aged; D001650:Bile Duct Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D006528:Carcinoma, Hepatocellular / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D018281:Cholangiocarcinoma / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D003841:Deoxycytidine / Q000008:administration & dosage* / Q000009:adverse effects / Q000031:analogs & derivatives*; D004334:Drug Administration Schedule; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007262:Infusions, Intravenous; D008113:Liver Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D015996:Survival Rate; D000093542:Gemcitabine
chemical_list: D003841:Deoxycytidine; D000093542:Gemcitabine