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AstraZeneca announces new trial data about Imfinzi

AstraZeneca scientist

Positive results from the TOPAZ-1 Phase III trial showed Imfinzi (durvalumab), in combination with standard-of-care chemotherapy, demonstrated a statistically significant and clinically meaningful overall survival (OS) benefit versus chemotherapy alone as a 1st-line treatment for patients with advanced biliary tract cancer (BTC).

At a predefined interim analysis, the Independent Data Monitoring Committee concluded that the trial met the primary endpoint by demonstrating an improvement in OS in patients treated with Imfinzi plus chemotherapy versus chemotherapy alone. The combination also demonstrated an improvement in progression-free survival (PFS) and overall response rate, key secondary endpoints.

Imfinzi plus chemotherapy was well tolerated, had a similar safety profile versus the comparator arm and did not increase the discontinuation rate due to adverse events compared to chemotherapy alone.

“We believe the significant survival benefit demonstrated marks a new era of immunotherapy treatment in this devastating disease.”

“We are delighted TOPAZ-1 has been unblinded early due to clear evidence of efficacy for Imfinzi plus chemotherapy, which has also demonstrated a strong safety profile. We have now delivered two positive gastrointestinal cancer trials in a row for Imfinzi, following the HIMALAYA trial in liver cancer. We believe the significant survival benefit demonstrated marks a new era of immunotherapy treatment in this devastating disease, and it advances our commitment to improving long-term survival for patients across these cancers where treatment options are limited,” says Susan Galbraith, Executive Vice President, Oncology R&D, AstraZeneca.

Photo: AstraZeneca