The management of metastatic renal cell carcinoma (RCC) has undergone a major transformation, with median survival increasing from <1 year to ~5 years. However, biomarker development in RCC has lagged, largely because the most effective therapies, such as immune checkpoint inhibitors and VEGFR tyrosine kinase inhibitors, act on the tumour microenvironment rather than directly on tumour cells. Although predictive biomarker development in RCC remains challenging, selected tools such as circulating biomarkers and tissue-based RNA signatures are shaping a personalized approach to care, with some emerging biomarkers showing clinical potential, and additional biomarkers poised to enter clinical practice.
- Ziad Bakouny
- A. Ari Hakimi
- Robert J. Motzer