Unresolved questions in the sequencing of systemic therapy for advanced urothelial carcinoma
摘要
The therapeutic landscape of advanced urothelial carcinoma has evolved rapidly with the introduction of immune checkpoint inhibitors, antibody-drug conjugates, and combination regimens. However, optimal treatment sequencing remains incompletely defined. This review examines critical sequencing dilemmas in contemporary practice.
MethodsThis narrative review synthesizes pivotal phase 3 trials in advanced urothelial carcinoma (2019–2024), real-world registry and population-based cohort data, and current NCCN and EAU guidelines. We focus on two key clinical scenarios: first-line therapy selection in the post-EV-302 era, and therapeutic strategies following progression on enfortumab vedotin-based regimens.
ResultsFirst-line options now include enfortumab vedotin plus pembrolizumab (median OS 31.5 months), nivolumab plus gemcitabine-cisplatin (median OS 21.7 months), and platinum-based chemotherapy with avelumab maintenance (median OS 21.4 months), yet comparative sequencing data are absent. Real-world attrition is substantial: only 49% of patients receive first-line therapy, 23% receive second-line, and 11% receive third-line treatment in claims-based analyses. Post-enfortumab vedotin options remain limited to platinum chemotherapy (for platinum-naïve patients), erdafitinib (for FGFR-altered disease), and clinical trial enrollment. No validated biomarkers exist to guide sequencing decisions.
ConclusionOptimal sequencing of systemic therapies in advanced urothelial carcinoma represents a critical evidence gap. Patient-centered approaches incorporating fitness assessment, real-world attrition patterns, and multidisciplinary input are essential pending prospective sequencing trials.