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Mitomycin C resorption following repeated intravesical instillations using different instillation times.

Abstract
In a prospective and randomized trial, 31 patients with superficial and/or CIS transitional cell carcinoma were treated by complete transurethral resection of all visible tumours, followed by instillation of 40 mg mitomycin C (MMC). The instillation time was 0.5 and 1.0 h. The resorption of MMC by the bladder wall was not influenced by the instillation time. There was no cumulative effect on MMC resorption observed in consecutive instillations. Less than 1% of the instilled dose of MMC was resorbed. The maximum plasma concentration of MMC never exceeded 31 ng/ml. After instillation, mean percentages of MMC found in urine were 40.3 (0.5 h group) and 46.4 (1.0 h group), respectively. The only side-effects observed were chemical cystitis, contact and general exanthema. The instillation time had no influence on these side-effects. Bone marrow toxicity has not been observed.
AuthorsP J van Helsdingen, C H Rikken, H P Sleeboom, E A de Bruyn, U R Tjaden
JournalUrologia internationalis (Urol Int) Vol. 43 Issue 1 Pg. 42-6 ( 1988) ISSN: 0042-1138 [Print] Switzerland
PMID3131943 (Publication Type: Clinical Trial, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
Chemical References
  • Mitomycins
  • Mitomycin
Topics
  • Administration, Intravesical
  • Aged
  • Carcinoma in Situ (drug therapy)
  • Carcinoma, Transitional Cell (drug therapy)
  • Clinical Trials as Topic
  • Female
  • Humans
  • Male
  • Middle Aged
  • Mitomycin
  • Mitomycins (administration & dosage, pharmacokinetics, therapeutic use)
  • Prospective Studies
  • Random Allocation
  • Time Factors
  • Urinary Bladder (metabolism)
  • Urinary Bladder Neoplasms (drug therapy)

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