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On February 16, 2018, the Food and Drug Administration approved durvalumab (Imfinzi, AstraZeneca Inc.) for patients with unresectable stage III non-small cell lung cancer (NSCLC) whose disease has not progressed following concurrent platinum-based chemotherapy and radiation therapy.
Approval was based on a planned interim analysis of progression-free survival (PFS) from PACIFIC (NCT02125461), a randomized double-blind, placebo-controlled trial conducted in 713 patients with unresectable, stage III NSCLC. Patients completed concurrent platinum-based chemotherapy and radiation within 42 days prior to study drug initiation and had WHO performance status of 0 or 1. The major efficacy measures were PFS (blinded independent central review per RECIST 1.1) and overall survival (OS). With approximately 81% of planned events for the final analysis, the trial demonstrated a statistically significant improvement in PFS for durvalumab compared to placebo (HR 0.52; 95% CI: 0.42, 0.65; p<0.00010). The estimated median PFS was 16.8 months for patients receiving durvalumab and 5.6 months for those receiving placebo. Survival results were immature at the interim PFS analysis. Read more here. Comments are closed.
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