Katy Beckermann, MD, PhD, discusses the latest findings from KEYMAKER-U03 Substudy 03B on pembrolizumab and targeted therapy combinations for previously treated advanced clear cell renal cell carcinoma. The phase 1/2 study evaluated the efficacy and safety of three treatment regimens: pembrolizumab + belzutifan, lenvatinib + belzutifan, and the reference arm of pembrolizumab + lenvatinib. Dr. Beckermann summarizes the key outcomes, including response rates, progression-free survival, and overall survival, as well as the safety profiles of these combinations.