Towards Healthcare

Jazz shows progress in stomach cancer with its promising findings

Jazz Pharmaceuticals shared new Phase 3 study results showing that Ziihera improved survival outcomes for advanced stomach cancer patients when used as first-line treatment.

Category: Science Published Date: 12 January 2026
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Introduction

Jazz Pharmaceuticals, an Ireland-based company famous for its ‘Ziihera’ (zanidatamab), which is a prescription-based medicine have been serving a total of 75 countries with its comprehensive products. With the robust pipeline and products travelling across countries and earning recognition and profit exponentially. Jazz's key areas are oncology, rare diseases and neuroscience.

The company believes in serving and marketing the best-in-class drugs for extreme conditions, featuring products like Vyxeos, Epidiolex and Xyrem. Further, the company has great news to share that is beneficial for stomach cancer patients and the overall healthcare sector as well.

Announcement

Jazz Pharmaceuticals bounced back with one more convincing data point after its high-profile cancer approval. The new data highlight HER2 antibody Ziihera’s important role that brings a certain level of improvement in the survival rate when considered and implemented as a piece of the first line (primary) regimen in metastatic or advanced gastroesophageal adenocarcinoma patients.

Findings origin

Continuing to the topic, the findings were derived from the Phase 3 HERIZON-GEA-01 study that examined a total of two Ziihera combinations. The combinations were related to chemotherapy, and the second one was related to chemotherapy and BeOne’s Tevimbra. To turn on the control, the trial integrated Herceptin with chemotherapy, in which around 900 patients were registered.

Accordingly, the results for the same were out on Tuesday, which observed 35% fall in the absence of deaths or risk in diseases in patients treated under chemotherapy and Ziihera. Alongside, Tevimbra advanced the progression-free survival (PFS) advantage by increasing it by 37%. The timeframe to PFS was recorded as more than four months longer in comparison to the Herceptin-related control cohort.

Following these trials’ insight, Truist pointed out Ziihera’s PFS median response rate that peaked at 14.3 months and 20.7 months for its nature and count of regimens. Regarding the same Jazz also informed about the negative events which was along with Ziihera’s popular profile for a long time. The events didn’t capture any serious adverse concerns to be worried about. After learning the potential of the data, Jazz is eager for an FDA submission.

Jazz comes with a clean and successful track record for its positive data, and so this submission will be another milestone for the company. The Chief Medical Officer at Jazz Pharmaceuticals, Rob lannone stated that the company is all set to showcase their findings in the forthcoming ASCO Gastrointestinal Cancers Symposium 2026.

Author

Mansi Kadam

Mansi Kadam

Mansi Kadam is a market research writer with over 3 years of experience analyzing trends in the healthcare industry. At Towards Healthcare, she covers innovations in medical sector, sustainability initiatives, and the evolving regulatory landscape.