Control group and maintenance treatment with bacillus Calmette-Guerin for carcinoma in situ and/or high grade bladder tumors

J. Palou, P. Laguna, F. Millán-Rodríguez, R. R. Hall, J. Salvador-Bayarri, J. Vicente-Rodríguez

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Abstract

Purpose: Intravesical instillations of bacillus Calmette-Guerin have demonstrated satisfactory results in the treatment of vesical carcinoma in situ and high grade superficial bladder tumors. We designed a protocol to evaluate the decrease in tumor recurrence with maintenance therapy. Materials and Methods: Between June 1989 and May 1995 an initial course of 6 intravesical instillations of Connaught strain bacillus Calmette-Guerin was administered in patients with carcinoma in situ and/or high grade superficial bladder tumors. Six months later 131 disease-free patients were randomly assigned to a control group or a maintenance therapy group that received 6 instillations every 6 months (6 × 6) for a 2-year period. Results: Of the 126 evaluable patients at a mean follow-up of 79 months there were no significant differences in recurrence nor progression. A total of 16 patients (26.2%) in the control and 10 (15.1%) in the maintenance group had superficial relapse at a mean of 24 and 20 months, respectively (p = 0.07). Eight patients underwent radical cystectomy due to bladder contraction in 1, high grade superficial recurrence in 4 and disease progression in 3. Of the 65 patients on maintenance therapy 22 (33.85%) completed the planned 2-year treatment. Conclusions: Six-month maintenance therapy in patients treated initially for carcinoma in situ and/or high grade superficial bladder tumors who are disease-free at 6 months did not significantly decrease recurrence or progression.
Original languageEnglish
Pages (from-to)1488-1491
JournalJournal of Urology
Volume165
Issue number5 I
Publication statusPublished - 1 Jan 2001

Keywords

  • BCG vaccine
  • Bladder
  • Bladder neoplasms
  • Carcinoma, transitional cell
  • Immunotherapy

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    Palou, J., Laguna, P., Millán-Rodríguez, F., Hall, R. R., Salvador-Bayarri, J., & Vicente-Rodríguez, J. (2001). Control group and maintenance treatment with bacillus Calmette-Guerin for carcinoma in situ and/or high grade bladder tumors. Journal of Urology, 165(5 I), 1488-1491.