Autenrieth ME, Horn T, Kurtz F, Nguyen K, Morgenstern A, Bruchertseifer F, Schwaiger M, Blechert M, Seidl C, Senekowitsch-Schmidtke R, Gschwend JE, Scheidhauer K. [Intravesical radioimmunotherapy of carcinoma in situ of the urinary bladder after BCG failure].
Urologe A 2017;
56:40-43. [PMID:
27885456 DOI:
10.1007/s00120-016-0273-4]
[Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND
In failure to respond to bacillus Calmette-Guérin (BCG) in patients with carcinoma in situ (CIS) of the urinary bladder, radical cystectomy remains the mainstay after BCG failure.
OBJECTIVES
The aim of this pilot study was to evaluate tolerability and safety of the α‑emitter radioimmunoconjugate instillation in patients after BCG failure.
MATERIALS AND METHODS
Nine patients were included. After emptying the bladder via a transurethral catheter, Bi-213-anti-EGFR-mAb was instilled. Treatment was terminated by emptying of the radioimmunoconjugate from the bladder 120 min after instillation. Efficacy was evaluated via endoscopy and histology 6 weeks after instillation.
RESULTS
All patients showed excellent toleration of the treatment without any side effects. Treatment resulted in complete eradication of tumor cells in 3 patients and persistent tumor detection in the other 6 patients.
CONCLUSIONS
Intravesical instillation of Bi-213-anti-EGFR-mAb is a promising therapeutic option for treatment of in situ bladder cancer after BCG failure for patients who wish to preserve the bladder.
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