AstraZeneca announces results of TOPAZ-1 Phase III Trial

Imfinzi plus chemotherapy doubled overall survival rate at three years for patients with advanced biliary tract cancer in TOPAZ-1 Phase III trial

Longest survival follow-up ever reported for immunotherapy treatment in this setting
 

Updated exploratory results from the TOPAZ-1 Phase III trial showed AstraZeneca’s Imfinzi (durvalumab) in combination with standard-of-care chemotherapy demonstrated a clinically meaningful long-term overall survival (OS) benefit at three years for patients with advanced biliary tract cancer (BTC).

These results from TOPAZ-1, which are the longest survival follow-up ever reported for a global, randomized Phase III trial in this setting, will be presented on 18 April at the 2024 Cholangiocarcinoma Foundation Conference in Salt Lake City, Utah.

At more than three years (median follow-up of 41.3 months), results showed Imfinzi plus chemotherapy reduced the risk of death by 26% versus chemotherapy alone (based on a hazard ratio [HR] of 0.74; 95% confidence interval [CI], 0.63-0.87). The median OS was 12.9 months for Imfinzi plus chemotherapy versus 11.3 months for chemotherapy alone. More than twice as many patients on the Imfinzi-based regimen were alive at three years versus chemotherapy alone (14.6% versus 6.9%).

Read the full news story at:
https://www.astrazeneca.com/media-centre/press-releases/2024/imfinzi-plus-chemotherapy-doubled-overall-survival-rate-at-three-years-for-patients-with-advanced-biliary-tract-cancer-in-topaz-1-phase-iii-trial.html



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