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Japanese

Intratumoral Pharmacokinetics Following Intraarterial Administration of MCNU in Patients with Malignant Gliomas Toshiki YAMASAKI 1 , Seiichi NAGAO 1 , Takato KAGAWA 1 , Shouji KONISHI 1 , Yasuhiko AKIYAMA 1 , Masako FUKUDA 1 , Yoriyoshi KIMURA 1 , Kouzo MORITAKE 1 1Department of Neurosurgery, Shimane Medical University Keyword: Malignant glioma , MCNU , Pharmacokinetics , Intraarterial administration , Brain neoplasm pp.963-969
Published Date 1995/11/10
DOI https://doi.org/10.11477/mf.1436901105
  • Abstract
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This clinical study was undertaken to examine intra-tumoral (i. t.) pharmacokinetics after intraarterial (i. a.) administration of MCNU (80 mg/m2) in 5 patients with glioblastoma (GB) and 2 with anaplastic astrocytoma (AA). After resection or stereotactic biopsy of the cys-tic lesion, an Ommaya reservoir was placed into the tumor cavity in all patients. The distribution of MCNU in blood was compatible with a two-compartment mod-el, and the half life of the α-phase and β-phase was 4.1 minutes and 160.4 minutes, respectively. MCNU was detected in the i. t. fluid in 5 cases, 4 of GB and 1 of AA. The concentration of i. t. MCNU gradually in-creased during the 5 to 30 minutes after i.a. injection to a level about 20.0% of its blood concentration. Howe-ver, no MCNU was detected in patients showing partial response (3 of GB and 1 of AA) or no change (1 of GB) after the i. a. infusion of MCNU during mainte-nance chemotherapy. These results suggests that MCNU may transfer into the tumor tissues. Further in-vestigation is warranted.


Copyright © 1995, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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