A phase II clinical trial of oral bropirimine in combination with intravesical bacillus Calmette-Guérin for carcinoma in situ of the bladder: A Southwest Oncology Group Study

Michael F. Sarosdy, Catherine M. Tangen, Geoffrey R. Weiss, Blake R. Nestok, Mitchell C. Benson, Paul F. Schellhammer, Arthur I Sagalowsky, David P. Wood, E. David Crawford

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Objectives: To estimate the probability of response when intravesical bacille Calmette-Guérin (BCG) is given in combination with oral bropirimine for bladder carcinoma in situ, and to evaluate toxicity when the 2 agents are combined. Methods: A total of 51 patients with histologic evidence of carcinoma in situ and no prior treatment with BCG or bropirimine were enrolled in a cooperative group multicenter phase II trial. Initial treatment included Tice BCG 50 mg weekly for 6 weeks and oral bropirimine 3.0 g/day for 3 consecutive days each week for 12 weeks. Response was assessed after 12 weeks by cystoscopy, biopsy, and barbotage cytology. Most patients received a second course followed by an identical assessment. Toxicity was recorded according to the Southwest Oncology Group toxicity criteria. Results: A total of 51 patients were enrolled and treated. There were 42 patients who were eligible and valuable for response and toxicity. There were 28 complete responders (67%, 50% to 80% 95% confidence interval). The 5-year progression-free survival estimate is 53%, and the 5-year survival estimate is 80%. There were no deaths, 2 patients had grade 4 toxicity, 14 grade 3 toxicity, 17 grade 2 toxicity, 6 grade 1 toxicity, and only 3 had no toxicity reported as their worst toxicity grade. Conclusions: The combination failed to show an estimated response higher than 80%. It is not recommended that further evaluation of this combination be conducted.

Original languageEnglish (US)
Pages (from-to)386-389
Number of pages4
JournalUrologic Oncology: Seminars and Original Investigations
Volume23
Issue number6
DOIs
StatePublished - Nov 2005

Keywords

  • Bladder cancer
  • Bropirimine
  • Immunotherapy

ASJC Scopus subject areas

  • Oncology
  • Urology

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