Positive high-level results from the HIMALAYA Phase III trial showed a single, high priming dose of tremelimumab added to Imfinzi (durvalumab) demonstrated a statistically significant and clinically meaningful overall survival (OS) benefit versus sorafenib as a 1st-line treatment for patients with unresectable hepatocellular carcinoma (HCC) who had not received prior systemic therapy and were not eligible for localised treatment . This novel dose and schedule of tremelimumab, an anti-CTLA4 antibody, and Imfinzi is called the STRIDE regimen (Single Tremelimumab Regular Interval Durvalumab). The combination demonstrated a favourable safety profile, and the addition of tremelimumab to Imfinzi did not increase severe hepatic toxicity
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