americanpharmaceuticalreviewJune 08, 2021
Tag: Novartis , Tislelizumab , ESCC , RATIONALE 302
Novartis announced results from the pivotal Phase III RATIONALE 302 trial showing the investigational anti-PD-1 immune checkpoint inhibitor tislelizumab improved overall survival (OS) versus chemotherapy (median 8.6 months vs. 6.3 months, p=0.0001). The study evaluated tislelizumab in patients with unresectable recurrent locally advanced or metastatic esophageal squamous cell carcinoma (ESCC) who had received prior systemic therapy. Results were presented at the 2021 American Society of Clinical Oncology (ASCO) Annual Meeting.
Results from RATIONALE 302 in ESCC showed tislelizumab extended median OS by 2.3 months compared to chemotherapy with a 30% reduction in the risk of death (HR=0.70, 95% CI: 0.57-0.85, p=0.0001). In PD-L1 positive patients, tislelizumab extended median OS by 3.5 months with a 46% reduction in the risk of death (HR=0.54, 95% CI: 0.36-0.79, p=0.0006).
“These data show that tislelizumab has the potential to help patients with esophageal squamous cell carcinoma – one of the deadliest types of cancers – live longer,” said Jeff Legos, Ph.D., MBA, Senior Vice President and Head of Oncology Drug Development. “We are excited about these results from the newest asset in our portfolio of transformational medicines and look forward to sharing these data with regulatory authorities, as we continue to explore the full potential of this uniquely designed anti-PD-1 antibody.”
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