Association Between Drug-related Cutaneous Adverse Events and Progression Free Survival in Patients Treated with Enfortumab Vedotin

Enfortumab vedotin (EV) is an antibody-drug conjugate (ADC) targeting nectin-4. In patients with metastatic urothelial carcinoma, EV in combination with pembrolizumab (anti-PD1) provides significantly better progression-free and global survival than platinum-based chemotherapies, with the benefit observed from the first line of treatment. However, EV is associated with a high frequency of cutaneous adverse events (AE), which may be due to physiological Nectin-4 expression in keratinocytes. These cutaneous toxicities include bullous/blistering toxicities and toxic epidermal necrolysis-like AE. While the association between cutaneous AE and survival has been demonstrated with anti-PD1, its association with survival in patient treated with ADC remains unknown. The objective of this retrospective dual-centric study is to determine whether there is an association between drug-related cutaneous AE and progression free survival in patients treated with EV.