Merck and Roche Join Forces for Tepotinib Commercialization in China

On March 26, 2025, Merck and Roche Pharmaceuticals officially announced a strategic partnership aimed at accelerating the commercialization of Tepotinib (brand name: Togetican®) in the mainland Chinese market. Industry analysts suggest that Merck is leveraging Roche's distribution network in China to expedite the launch of this groundbreaking drug.

Tepotinib is the world's first approved MET inhibitor, developed by Merck in Germany. It is an oral, highly selective MET tyrosine kinase inhibitor designed to block cancer signaling pathways caused by MET gene mutations.

The drug received approval in Japan in March 2020 for treating patients with unresectable, advanced, or recurrent non-small cell lung cancer (NSCLC) harboring MET exon 14 skipping mutations. In February 2021, Tepotinib gained accelerated approval from the FDA for treating adult patients with metastatic NSCLC who also have these mutations. In December 2023, the drug was officially approved for use in mainland China, targeting locally advanced or metastatic NSCLC patients with MET exon 14 skipping mutations. It was included in the national health insurance catalog by the end of 2024, with implementation starting January 1, 2025.

Clinical trials have validated Tepotinib's efficacy, demonstrating its high selectivity and good tolerability, particularly in Asian populations. The drug has received endorsements from prestigious guidelines like NCCN and CSCO.

Currently, several MET inhibitors have received global approval, including:

• Capmatinib (developed by Novartis), which was approved by the FDA in May 2020 as the first targeted therapy for MET exon 14 skipping mutations in NSCLC. In clinical trials, it showed an objective response rate (ORR) of 67.9% in treatment-naive patients.

• Savolitinib (developed by Hutchison China MediTech), the only MET inhibitor approved in China, also demonstrated encouraging efficacy in patients with MET exon 14 skipping mutations.

However, Tepotinib will face competition from domestic MET inhibitors such as Gumetinib from Allergan, which is currently in late-stage clinical trials and could enter the market at a lower price point.

Lung cancer remains a leading cause of morbidity and mortality globally, with non-small cell lung cancer (NSCLC) accounting for approximately 85%-90% of cases. The incidence of MET exon 14 skipping mutations in NSCLC patients is about 1%-4%, which, while relatively rare, translates to a significant number of patients given the large patient population and limited treatment options.

This partnership is pivotal for Roche, enabling it to expand its footprint in lung cancer treatment. By incorporating Tepotinib into its portfolio, Roche enhances its competitive edge in the precision treatment market for lung cancer, moving beyond its existing focus on ALK and NTRK/ROS1 mutations.

Merck's expertise in drug development and innovation combined with Roche's rich experience in commercialization will likely bolster Tepotinib's market competitiveness, promising substantial commercial value for both companies. The success of this collaboration could set a new benchmark in the treatment of lung cancer.