Systematic Review of the Role of BCG in the Treatment of Urothelial Carcinoma of the Prostatic Urethra
Patschan, O. (Institution of Translational Medicine. Lund University)
Spiess, P.E. (Department of GU Oncology. Department of Tumor Biology. Moffitt Cancer Center)
Thalmann, G.N. (Department of Urology. University Hospital Inselspital)
Palou, Juan (Institut d'Investigació Biomèdica Sant Pau)
Gakis, G. (Department of Urology and Pediatric Urology. University Hospital of Würzburg)
Universitat Autònoma de Barcelona

Fecha:	2021
Resumen:	BACKGROUND: In patients with non-invasive urothelial carcinoma of the prostatic urethra (PUC), treatment with Bacillus Calmette-Guérin (BCG) could be beneficial. OBJECTIVE: To assess the response rates to BCG in the different tumor stages, to describe the clinical impact of transurethral resection of the prostate (TURP) before BCG treatment, and to review the side effects of BCG treatment for PUC. METHODS: A systematic search was conducted using the PubMed database to identify original studies between 1977 and 2019 reporting on PUC and BCG. RESULTS: Of a total of 865 studies, ten were considered for evidence synthesis. An indication for BCG treatment was found in non-stromal invasive stages (Tis pu, Tis pd) and in stromal infiltrating cases (T1) of primary and secondary PUC when transitional cell carcinoma was the histology of origin. Studies including patients treated with TURP before BCG showed a better local response in the prostatic urethra with a higher disease free survival (DFS) (80-100% vs. 63-89%) and progression free survival (PFS) (90-100% vs. 75-94%) than patients in studies in which no TURP was performed. However, this difference in recurrence and progression in the prostate neither affected the total PFS (57-75% vs. 58-93%), nor the disease specific survival (70-100% vs. 66-100%). CONCLUSIONS: The use of resection loop biopsies of the prostatic urethra in appropriate cases during the primary work-up for suspected PUC, as well as the use of the current TNM classification for PUC, need to be improved. BCG therapy for non-stromal invasive stages of PUC show a good local response. Local response is further improved by a TURP before BCG therapy, although the overall prognosis does not seem to be affected. Further evidence for BCG treatment in the rare cases of stromal invasive PUC is needed. Specific side effects of BCG treatment for PUC are not reported.
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article de revisió ; recerca ; Versió publicada
Materia:	BCG ; Transitional carcinoma ; Prostatic urethra
Publicado en:	Bladder Cancer, Vol. 7 Núm. 2 (2021) , p. 213-220, ISSN 2352-3735

DOI: 10.3233/BLC-201516

8 p, 612.3 KB

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