A Phase I Study of ADH-1 and Gemcitabine Plus Cisplatin in Patients With Unresectable or Metastatic Pancreatic and Biliary Tract Cancers

PRIMARY OBJECTIVES: I. To evaluate the toxicities and determine the recommended dose of ADH-1 given twice weekly for 3 weeks in combination with cisplatin and fixed-dose rate gemcitabine (gemcitabine hydrochloride) given on weeks 1 and 2 of the 3 week schedule for 3 cycles in patients with locally advanced or metastatic pancreatic or biliary tract adenocarcinomas. SECONDARY OBJECTIVES: I. To evaluate changes in the levels of intercellular adhesion molecule 1 (ICAM-1), E-selectin, vascular endothelial growth factor (VEGF), soluble vascular endothelial growth factor receptor (VEGFR) and basic fibroblast growth factor (B-FGF) during therapy with ADH-1, cisplatin and gemcitabine. II. Radiographic assessment of disease status after 3 cycles of chemotherapy with ADH-1, cisplatin and gemcitabine. III. To evaluate progression-free and overall survival of patients with locally advanced or metastatic pancreatic or biliary tract adenocarcinomas treated with ADH-1 given with cisplatin and fixed dose rate gemcitabine for 3 cycles. Patients with stable or responsive disease after 3 cycles will continue on maintenance cisplatin and fixed dose rate gemcitabine. OUTLINE: This is a dose-escalation study of ADH-1. Patients receive ADH-1 intravenously (IV) over 20-80 minutes on days 1, 4, 8, 11, 15, and 18, cisplatin IV and gemcitabine hydrochloride IV over 30 minutes on days 1 and 8. Treatment repeats every 3 weeks for 3 courses in the absence of disease progression or unacceptable toxicity. Patients with stable or responsive disease may receive maintenance therapy with cisplatin and gemcitabine hydrochloride. After completion of study treatment, patients are followed up every 3 months for 2 years.