Enfortumab vedotin as a salvage option as 5th line therapy for metastatic urothelial bladder cancer

Author:

Klee Melanie1,Roesch Marie Christine1,Eggers Hendrik2,Ivanyi Philipp3,Merseburger Axel S.1,Kramer Mario1

Affiliation:

1. Department of Urology, Universitätsklinikum Schleswig-Holstein - Campus Lübeck, Lubeck, Germany

2. Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Medizinische Hochschule Hannover, Hannover, Germany

3. Urology, MHH, Hannover, Germany

Abstract

Abstract A 67-year-old female patient with a muscle-invasive, non-metastatic urothelial bladder cancer (UC) (pT2 G3 cN0 cM0) developed metachronous metastases within 6 months after radical cystectomy with ileal conduit urinary diversion. After a good primary response to platinum-based chemotherapy, treatment was switched to the immune checkpoint inhibitor (ICI) pembrolizumab due to progressive disease. Subsequently the patient underwent selective internal radiotherapy (SIRT) of the liver and received vinflunine as well as a re-challenge with pembrolizumab. Two years after the initial diagnosis, rapid disease progression ultimately led to a switch to 5th line therapy with enfortumab vedotin (EV), which had only been approved in the United States at that time. The antibody-drug conjugate was well tolerated by the patient after dose reduction to 1.0 mg/ kg body weight. Simultaneous irradiation of newly occurring precardiac, hepatic and cerebral metastases were necessary. After 10 months of therapy with EV, tumour regression was observed accompanied with good symptom control. The presented case illustrates the efficacy and tolerability of EV in a heavily pre-treated patient with metastatic UC (mUC).

Publisher

Georg Thieme Verlag KG

Subject

Urology

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