| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Forced diuresis treatment did not significantly alter the plasma cisplatin pharmacokinetics but dramatically decreased the urine concentration of unbound cisplatin and its accumulation into the kidneys in a dose-dependent manner, and correspondingly, nephrotoxicity was dose-dependently attenuated by forced diuresis. The pharmacokinetic-pharmacodynamic analysis suggested that the urine cisplatin concentration has a comparable impact on the cisplatin-induced nephrotoxicity to that in plasma, probably owing to the reabsorption of cisplatin from urine, which can be attenuated by forced diuresis. These results indicated that the nephroprotective effect of forced diuresis is a pharmacokinetic-based drug-drug interaction possibly due to the inhibition of cisplatin reabsorption from urine. Monitoring of urine cisplatin concentration may lead to the optimization of a forced diuresis protocol with mannitol.
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