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  • Title: Pharmacokinetics of BNP7787 and its metabolite mesna in plasma and ascites: a case report.
    Author: Verschraagen M, Boven E, Zegers I, Hausheer FH, Van der Vijgh WJ.
    Journal: Cancer Chemother Pharmacol; 2003 Jun; 51(6):525-9. PubMed ID: 12750838.
    Abstract:
    PURPOSE: BNP7787 (2',2'-dithio-bis-ethane sulfonate sodium) is a novel protector against cisplatin-induced toxicities. The pharmacokinetics of BNP7787 and its metabolite mesna were investigated in plasma and ascites of a cancer patient. We also evaluated potential pharmacokinetic interactions between BNP7787 and cisplatin. METHODS: BNP7787 and mesna were measured as mesna in deproteinized plasma and ascites using high-performance liquid chromatography with an electrochemical detector provided with a wall-jet gold electrode. RESULTS: After the i.v. administration of 41 g/m(2) BNP7787, BNP7787 and mesna had a half-life of 1.5 and 3.4 h, respectively. The AUC( infinity ) of mesna was approximately 8% of the AUC( infinity ) of BNP7787. Coadministration of cisplatin did not appear to influence the plasma concentration-time curves of BNP7787 and mesna. In ascites, approximately 0.02% of the BNP7787 dose was present as mesna, whereas approximately 4% of the dose was present as BNP7787 at the time of the maximum concentration. CONCLUSIONS: It can be concluded that the presence of ascites did not have a major impact on the pharmacokinetics of BNP7787 and coadministration of cisplatin did not influence the pharmacokinetics of BNP7787 and mesna.
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