Etoposide plus carboplatin admixture. Phase I study of five- or seven-day continuous infusion.
Thirty-five patients were entered in a Phase I trial of an admixture infusion of etoposide (VP-16) and carboplatin (CBDCA) administered continuously for 5 or 7 days. Because of the compatibility and solubility of the two agents, the treatment program could be administered on an outpatient basis. The dose rate of VP-16 was fixed at 30 mg/m2/day (total dose 150 mg/m2 for 5 days or 210 mg/m2 for seven days) for each cycle. Carboplatin was evaluated at three dose rates: 50, 60, and 75 mg/m2/day on the 5-day infusion and 40, 50, and 60 mg/m2/day on the 7-day infusion with cycles repeated at 28 to 42 days. The dose limiting toxicity was hematologic and followed a pattern typical for carboplatin, that is, delayed neutropenia and/or thrombocytopenia with a protracted leukocyte recovery. Renal toxicity was observed in three patients. The optimum total dose for the infusional carboplatin component was 300 mg/m2 (5-day) and 420 mg/m2 (7-day). The total etoposide dose was 150 mg/M2 and 210 mg/M2, which did not appear to contribute to the hematologic toxicity. Delivery of the admixture of VP-16 and CBDCA was feasible, although cumbersome, as a result of the portable delivery system. Extending the duration of infusion increases the total cumulative dose of carboplatin and etoposide that can be administered without increasing adverse effects.
Lokich
J
J
Cancer Center of Boston, MA 02120.
Anderson
N
N
Bern
M
M
Zipoli
T
T
Gonsalves
L
L
Moore
C
C
D000368:Aged; D000369:Aged, 80 and over; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage* / Q000627:therapeutic use; D016190:Carboplatin / Q000008:administration & dosage; D004334:Drug Administration Schedule; D004341:Drug Evaluation; D005047:Etoposide / Q000008:administration & dosage; D005260:Female; D006801:Humans; D015918:Infusion Pumps, Implantable; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000188:drug therapy*
D005047:Etoposide; D016190:Carboplatin