Merck (MRK.N) has entered a licensing agreement worth up to $2 billion with Chinese biotech firm Hansoh Pharma (3692.HK) for the development of an experimental oral weight-loss drug, HS-10535. This move positions Merck as a new competitor in the race to deliver an alternative to injectable weight-loss treatments.
Details of the Agreement
Under the agreement, Merck will assume responsibility for developing, manufacturing, and commercializing the drug. Hansoh’s HS-10535 is a GLP-1 receptor agonist candidate, designed to emulate the effects of injectable weight-loss drugs like Novo Nordisk’s Wegovy and Eli Lilly’s Mounjaro.
Merck will pay Hansoh an upfront fee of $112 million for the exclusive license, with potential milestone payments of up to $1.9 billion based on development, regulatory progress, and sales achievements. Hansoh will also receive royalties on future sales.
Competitive Landscape
Merck faces stiff competition in the burgeoning weight-loss market. Its oral drug candidate will likely trail behind rivals such as Eli Lilly’s orforglipron, which is further along in development. Other pharmaceutical giants, including Pfizer, Amgen, and Structure Therapeutics, are also testing oral obesity treatments, while AstraZeneca has partnered with China’s Eccogene on a similar initiative.
HS-10535 is currently in the preclinical testing phase, focusing on animal studies, meaning it could be several years before it reaches commercial availability. However, Merck sees potential in the drug not only for weight loss but also for delivering cardiometabolic benefits, according to Merck Research Laboratories president Dean Li.
Merck’s Broader Strategy
This deal reflects Merck’s broader focus on second- and third-generation weight-loss treatments, particularly oral solutions that may offer added convenience over injectables. Beyond HS-10535, Merck is also developing efinopegdutide, a GLP-1 candidate targeting metabolic dysfunction-associated steatohepatitis (MASH), a severe fatty liver disease associated with obesity.
Despite entering the weight-loss race later than its competitors, Merck aims to carve a niche in the field by emphasizing treatments that address obesity-related conditions alongside weight reduction.
Market Response and Implications
Shares of Merck rose slightly to $100.80 in premarket trading following the announcement. Analysts, however, expressed concerns about the timing, as Merck’s drug will likely lag behind more advanced contenders.
Weight-loss treatments, particularly GLP-1 receptor agonists, are shaping up to be a multibillion-dollar market, driven by increasing global demand for effective and convenient solutions to obesity. The licensing deal with Hansoh signifies Merck’s commitment to becoming a key player in this competitive market.