TAGRISSO plus savolitinib shows survival benefit in SAFFRON Phase III trial
AstraZeneca and HUTCHMED report that TAGRISSO plus savolitinib significantly improved progression-free and overall survival in the SAFFRON Phase III trial for EGFRm NSCLC patients with MET resistance. The combination outperformed platinum-based chemotherapy in this difficult-to-treat population. The regimen is already approved in China following the SACHI trial, and new data will be shared with global regulators.

*this image is generated using AI for illustrative purposes only.
AstraZeneca and HUTCHMED have reported positive high-level results from the SAFFRON Phase III clinical trial, demonstrating that the combination of TAGRISSO (osimertinib) and savolitinib delivers significant survival benefits for patients with epidermal growth factor receptor-mutated (EGFRm) non-small cell lung cancer (NSCLC). The trial established statistical significance in both progression-free survival (PFS) and overall survival (OS) when compared against doublet platinum-based chemotherapy.
The study focused on a specific patient population with tumors exhibiting high levels of MET overexpression or amplification who had previously progressed on TAGRISSO treatment. This addresses a critical unmet need, as approximately one in three patients develop MET-driven resistance to third-generation EGFR-tyrosine kinase inhibitors (TKIs), a mechanism associated with poor prognosis.
Trial Context and Clinical Significance
Third-generation EGFR-TKIs have markedly improved outcomes for EGFRm NSCLC patients. However, MET overexpression or amplification remains one of the most common mechanisms of resistance. The SAFFRON trial is noted as the first global Phase III study to demonstrate significant benefits in both PFS and OS in this specific setting. These results reinforce the position of TAGRISSO as a backbone therapy across EGFRm lung cancer treatments.
The safety profile observed for the combination was consistent with the known profiles of each individual medicine, with no new safety findings reported. The data are scheduled to be presented at a forthcoming medical meeting and will be shared with global regulatory authorities.
Regulatory Status and Development
TAGRISSO plus savolitinib holds regulatory approval in China for patients with locally advanced or metastatic EGFRm NSCLC featuring MET amplification after disease progression on EGFR-TKI therapy. This approval was granted based on data from the SACHI Phase III trial. Savolitinib is being jointly developed by AstraZeneca and HUTCHMED, with AstraZeneca handling commercialization.
How might the SAFFRON trial results influence AstraZeneca's strategy for seeking regulatory approval in the US and EU markets for this combination therapy?
What impact could the successful validation of savolitinib have on the valuation and future R&D pipeline of HUTCHMED as a partner?
Will this data encourage other pharmaceutical companies to accelerate development of MET inhibitors in combination with EGFR-TKIs for NSCLC?

































