Initial experience of enfortumab vedotin in a patient with metastatic urothelial carcinoma on hemodialysis: Two case reports.

ABSTRACT

Introduction: Few studies have reported on administering enfortumab vedotin to patients with metastatic urothelial carcinoma and end-stage renal disease requiring hemodialysis. Case presentation Case 1 An 85-year-old man underwent hemodialysis for progressive renal failure 4 months after right laparoscopic radical nephroureterectomy. Case 2 A 73-year-old man underwent hemodialysis after two laparoscopic radical nephroureterectomies for recurrent urothelial carcinoma. In both cases, enfortumab vedotin was administered due to postoperative recurrence and progression despite platinum-based chemotherapy and pembrolizumab. Partial response and disease progression were observed in cases 1 and 2, respectively. Adverse events included a mild skin rash in both patients and neutropenia in Case 1, both of which resolved with symptomatic treatment. Conclusion: The efficacy and safety of enfortumab vedotin in patients with metastatic urothelial carcinoma, and end-stage renal disease undergoing hemodialysis, were confirmed.