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Imfinzi (durvalumab) significantly improved overall survival and progression-free survival for patients with limited-stage small cell lung cancer in ADRIATIC Phase III trial – AstraZeneca

Written by | 11 Apr 2024 | Oncology

Positive high-level results of the ADRIATIC Phase III trial showed AstraZeneca’s Imfinzi (durvalumab) demonstrated a statistically significant and clinically meaningful improvement in the dual primary endpoints of overall survival (OS) and progression-free survival (PFS) in patients with limited-stage small cell lung cancer (LS-SCLC) who had not progressed following concurrent chemoradiotherapy (cCRT) compared to placebo after cCRT.

Small cell lung cancer (SCLC) is a highly aggressive form of lung cancer that typically recurs and progresses rapidly despite initial response to chemotherapy and radiotherapy in LS-SCLC patients. The prognosis is particularly poor for LS-SCLC, as only 15-30% of these patients will be alive five years after diagnosis.

Suresh Senan, PhD, Professor of Clinical Experimental Radiotherapy at the Amsterdam University Medical Center, The Netherlands, and principal investigator in the trial said: “Many patients treated for limited-stage small cell lung cancer face disease recurrence and the standard of care has remained unchanged for decades. ADRIATIC is the first global Phase III immunotherapy trial to deliver significant, clinically meaningful improvement in survival in this setting, marking a breakthrough for patients with this devastating disease.”

Susan Galbraith, Executive Vice President, Oncology R&D, AstraZeneca, said: “These exciting results build on the transformative efficacy of Imfinzi in extensive-stage small cell lung cancer and demonstrate the potential to bring a curative-intent immunotherapy treatment to this earlier-stage setting of small cell lung cancer for the first time. These data, together with the PACIFIC data in unresectable, Stage III non-small cell lung cancer, underscore the pioneering role of Imfinzi in the treatment of early lung cancer following chemoradiotherapy.”

The safety profile for Imfinzi was consistent with its known profile, and no new safety signals were identified.

These data will be presented at a forthcoming medical meeting and shared with global regulatory authorities. The second experimental arm testing the efficacy of Imjudo (tremelimumab) added to Imfinzi as a secondary endpoint remains blinded and will continue to the next planned analysis.

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