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  • Title: Phase II study of a new combined primary chemotherapy regimen, intravenous methotrexate and vincristine and intraarterial adriamycin and cisplatin, for locally advanced urinary bladder cancer: preliminary results.
    Author: Kuroiwa T, Naito S, Hasuo K, Kishikawa T, Masuda K, Kumazawa J.
    Journal: Cancer Chemother Pharmacol; 1995; 35(5):357-63. PubMed ID: 7850915.
    Abstract:
    A phase II study of a new combination therapy was performed using intraarterial (i.a.) cisplatin and Adriamycin in combination with i.v. methotrexate and vincristine for 27 patients with invasive urinary bladder carcinoma of stages T2-3NOMO, and the therapeutic effects were assessed. Methotrexate (20 mg/m2) was given i.v. on days 1,15, and 22, and vincristine (0.7 mg/m2) was injected i.v. on day 2 before i.a. infusion therapy and on days 15 and 22. The i.a. chemotherapy was performed after both superior gluteal arteries had been embolized using 3- or 5-mm stainless-steel coils. A mixture of cisplatin (50-70 mg/m2) and Adriamycin (20 mg/m2) was infused i.a. via both internal iliac arteries over a period of 20-30 min. Angiotensin II (mean dose, 21 micrograms) was simultaneously infused i.a. in 15 of 27 patients. In 24 of the 27 patients, at least 2 cycles of full-dose chemotherapy were completed. The dose was decreased in the remaining 3 patients because of their poor health status and advanced age. Among the 27 patients, 9 and 14 had complete (CR) and partial responses (PR), respectively; 3 manifested no change (NC), and 1 had progressive disease (PD). The objective response rate (CR+PR) was 85.2%. Among the 27 patients staged T2-3 NOMO, 6 (CR, 1; PR, 5) underwent total cystectomies and 18 (CR, 8; PR, 8; NC, 2) had transurethral resection of a bladder tumor (TUR-Bt) or partial resections following chemotherapy. The remaining 3 diminished-dose patients had no surgery. Of the 27 patients, 22 were alive after a median follow-up period of 21+ (range, 7-48+) months. No significant side effect was observed except for lower extremity paresthesias in 5 patients (18.5%). These results point to the effectiveness of this therapy and to the possibility of urinary bladder preservation in patients with invasive, advanced urinary bladder cancers.
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