Pharmacokinetic analysis of paclitaxel and carboplatin in a patient with advanced ovarian cancer during hemodialysis--case report.

We examined pharmacokinetics of paclitaxel and carboplatin in a FIGO Stage IIIb ovarian cancer patient with hemodialysis-dependent chronic renal failure. The patient suffered from recurrence of the disease after treatment with optimal debulking surgery and postoperative chemotherapy consisting of cisplatin, epirubicin and cyclophosphamide, and she was treated with combined paclitaxel and carboplatin as second-line chemotherapy. The carboplatin dose was chosen to produce a target area under the concentration/time curve (AUC) of 5.0 microg-min/ml according to a published formula. Four-hour hemodialysis was started 24 hours and 16 hours after the end of carboplatin administration in the first and second courses of the chemotherapy, respectively. Pharmacokinetic studies showed that the AUCs of free platinum were 8.03 and 5.69 microg-min/ml in the first and second courses of the chemotherapy, respectively, suggesting that the AUC of carboplatin is affected by hemodialysis. However, an attenuation pattern of paclitaxel was almost similar between the first and the second courses, indicating that the change in blood concentration of paclitaxel was similar to that of patients with normal renal function. Hematological and nonhematological adverse effects were at an acceptable degree. The evidence suggests that even patients with chronic renal failure can undergo combination chemotherapy of paclitaxel and carboplatin without suffering any severe adverse effects by determining the time to start hemodialysis.