A Phase I Study of Compound 506U78 (NSC #686673) in Patients With Hematologic Malignancies and Renal or Hepatic Impairment

OBJECTIVES: I. Determine the maximum tolerated dose of 506U78 in patients with hematologic malignancies and renal or hepatic impairment. II. Establish dosing guidelines for this drug in this patient population. III. Determine the toxicities and pharmacokinetics of this drug in these patients.

OUTLINE: Patients are stratified into 5 groups according to renal and hepatic function: Group 1: Normal renal function and normal hepatic function Group 2: Moderate renal impairment and normal hepatic function Group 3: Severe renal impairment and normal hepatic function Group 4: End stage renal impairment and normal hepatic function Group 5: Normal renal function and moderate hepatic impairment Group 1: Patients receive 506U78 IV over 2 hours on days 1, 3, and 5. Groups 2-5: Patients receive 506U78 IV over 2 hours on days 1, 3, and 5. Dose escalation occurs independently in each of the treatment groups. Cohorts of 3-6 patients receive escalating doses of 506U78 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose limiting toxicities. Treatment repeats every 4 weeks for a maximum of 6 courses in the absence of unacceptable toxicity or disease progression.

PROJECTED ACCRUAL: Approximately 60 patients will be accrued for this study.