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JunHe Assists Synthera Biotech in its Exclusive Licensing Agreement with GSK for siRNA

2026.05.06

On May 6, 2026, Suzhou Synthera Biotech Co., Ltd. (Synthera Biotech) announced that it had entered into an exclusive global licensing agreement (excluding mainland China, Hong Kong, Maca, and Taiwan) with GlaxoSmithKline (GSK) for SA030.


SA030 is a potential first-in-class, long-acting small interfering RNA (siRNA) oligonucleotide currently in development for the treatment of metabolic and cardiovascular diseases. SA030 recently entered Phase I clinical trials, targeting activin receptor-like kinase 7 (ALK7), an established therapeutic mechanism for cardiometabolic diseases. Given the unresolved cardiometabolic risks in various chronic diseases, this project holds significant clinical and market potential.


GSK will pay an upfront fee and future milestone payments based on successful development, registration and commercialization, with the total amount reaching up to USD 1.005 billion. GSK will also pay tiered royalties on the global net sales of the product (excluding mainland China, Hong Kong, Macau and Taiwan).


Synthera Biotech will lead the clinical development of SA030 until the completion of the Phase I clinical trials. Afterward, GSK will assume responsibilities for the development, regulatory submissions and commercialization outside mainland China, Hong Kong, Macau and Taiwan.


JunHe was entrusted by Synthera Biotech to review, amend and negotiate the agreement for this project. JunHe's team earned the trust and recognition of the client with its consistently efficient, rigorous work style and meticulous, dedicated service attitude.


The lead partner for this project was ZHAO, Hao (Gerry).


JunHe is the only Chinese law firm to be admitted as a member of Lex Mundi and Multilaw, two international networks of independent law firms. JunHe and selected top law firms in major European and Asian jurisdictions are “best friends.” Through these connections, we provide high quality legal services to clients doing business throughout the world.
As the first carbon neutrality fund sponsored by a law firm in China, the BAF Carbon Neutrality Special Fund was jointly established by JunHe and the Beijing Afforestation Foundation (BAF) to promote carbon neutral initiatives, and encourage social collaboration based on the public fundraising platform to mobilize engagement in public welfare campaigns.