Jazz Pharmaceuticals plc and Zymeworks Inc. recently informed that the former has chosen to keep its exclusive rights to develop and sell Zymeworks' Zanidatamab in key markets, such as the U.S., Europe, and Japan, as part of the license and collaboration agreement made in October 2022.
A pivotal trial in previously treated HER2-amplified biliary tract tumors (BTC) found that 41.3% (95% CI: 30.4, 52.8) of recruited patients with HER2-amplified and expressing (IHC2+ and 3+) illness achieved an objective response as judged by independent central review. The median response length was 12.9 months (95% CI: 5.95 to not attained). In this trial, Zanidatamab's safety profile was similar to what had been found in previous studies of monotherapy, while no new safety signals were found.
Jazz Pharmaceuticals stated that the compelling top-line clinical data from the pivotal study in patients with BTC demonstrated the transformative potential of Zanidatamab. This big win gives the company more confidence that it can make this medicine better for cancer patients who have big unmet needs. Even though its main focus will be on the ongoing clinical trials for BTC and GEA, these data will add to the growing amount of evidence that Zanidatamab is effective against a wide range of HER2-expressing cancers.
Zymeworks expressed that the collaboration with Jazz is going well, which will speed up the global development of Zanidatamab in many types of cancer and may give patients with hard-to-treat cancers and few treatment options access to a basic HER2-targeted drug.
Jazz will pay Zymeworks $325 million to exercise its option to develop and sell Zanidatamab in all countries except Asia-Pacific in the fourth quarter of 2022.
About
Jazz Pharmaceuticals
Jazz Pharmaceuticals, founded in 2003 and located in Dublin (Ireland), innovates to improve the lives of patients and their families. The company transforms biopharmaceutical discoveries into innovative medications to reimagine what's possible.
About
Zymeworks
Zymeworks develops next-generation multifunctional biotherapeutics. Zanidatamab is a new Azymetric™ HER2-targeted bispecific antibody being examined in numerous Phase 1, Phase 2, and pivotal clinical trials globally as a targeted therapeutic option for patients with HER2-positive solid tumors. Zanidatamab Zovodotin (ZW49) is a bispecific antibody-drug combination in Phase 1 clinical development. It combines Zanidatamab's unique design and antibody framework with Zymeworks' ZymeLink™ linker-cytotoxin.