Merck has struck a licensing deal for a cardiovascular drug with Jiangsu Hengrui Pharmaceuticals, the latest in a flood of China deals being made by US and European multinationals.
Under the deal, Merck will get all non-China rights to Hengrui’s drug HRS-5346, a small molecule lipoprotein(a) inhibitor. It will pay $200 million upfront and as much as $1.77 billion in milestone payments, plus royalties.
Lipoprotein(a), or Lp(a), is a common blood protein that can have similar effects as LDL cholesterol, leading to plaque buildup and cardiovascular risks such as heart attacks. It’s been a known risk factor
since at least the 1970s
, but there are no US-approved drugs to specifically treat it. It runs in families and is more common in black and South Asian people, according to
one review
.
Drugmakers see it as a major new market in cardiovascular care, estimating that more than a billion people around the globe have elevated Lp(a) levels. Dean Li, president of Merck Research Laboratories, in an announcement called the molecule “an important addition that expands and complements our cardio-metabolic pipeline.”
Amgen and Novartis both have lipoprotein(a) drugs in Phase 3. Silence Therapeutics has a drug in Phase 2, as does Eli Lilly. And AstraZeneca
struck a deal
with China’s CSPC Pharmaceutical Group for an early-stage Lp(a) drug.
While some of those experimental drugs have
proven
highly
effective
at cutting levels of Lp(a), Hengrui’s drug — which is in Phase 2 trials in China — is an oral small molecule, compared with more complicated modalities being pursued by the other two companies.
Responding to a question about its program for the experimental medicine, Merck said that “while it’s too early to disclose clinical development plans, we plan to evaluate the efficacy and safety of HRS-5346 in a global patient population.”
Multinational drugmakers have over the last year turned to China again and again for new molecules to add to their pipeline, striking licensing deals totalling billions of dollars in upfront payments.
In November, for example, Merck
struck a deal
with Shanghai-based LaNova Medicines with a $588 million upfront a several billion more in potential payouts, for a PD-1/VEGF bispecific antibody for cancer. Then, in December, it announced
a $112 million upfront deal
, plus milestones, with Hansoh Pharma for an obesity asset.
Hengrui is one of the country’s major pharma companies that has struck several deals with US and European pharma companies and biotech. That includes a
multi-asset obesity deal
with a startup and
an antibody-drug conjugate deal
with Ideaya Biosciences.
The deal is expected to close in the second quarter.
Editor’s note: This story has been updated with a comment from Merck on its trial plans.