Phase 3 PROTEUS: perioperative apalutamide plus ADT met both dual primary endpoints in high-risk localized prostate cancer, raising pCR/MRD rates to 8.9% vs 1.0% and cutting metastasis or death risk by 20%.
Dual immunotherapy allowed 70.6% of MSI-H gastric cancer patients to avoid surgery in the INFINITY trial. German off-label immunotherapy shows 20-25% response rates, requiring careful patient selection.
Three trials show ultra-low-dose checkpoint inhibitors retain efficacy with reduced toxicity and dramatically lower costs. DELII and Patil et al. trials tested low-dose nivolumab in solid tumors and HNSCC; NIVIPIT tested intratumoral low-dose ipilimumab in melanoma.
New research highlights circulating tumor DNA as a prognostic tool in early-stage triple-negative breast cancer, while leronlimab demonstrates long-term survival signals in heavily pretreated metastatic patients through CCR5 receptor blockade.
Phase III KEYNOTE-B15 trial demonstrates enfortumab vedotin plus pembrolizumab significantly improves event-free survival and pathologic complete response rates compared with cisplatin-based chemotherapy in muscle-invasive bladder cancer.
Neoadjuvant pembrolizumab achieved 71% pathologic complete response in desmoplastic melanoma patients, while lower-dose ipilimumab combination therapy showed improved survival and fewer side effects in advanced melanoma treatment.
