GSK completes $2 billion acquisition of efimosfermin for liver disease pipeline

Published 07/07/2025, 16:24
GSK completes $2 billion acquisition of efimosfermin for liver disease pipeline

GSK plc (LSE/NYSE:GSK) announced Monday the completion of its acquisition of efimosfermin alfa from Boston Pharmaceuticals. The deal includes an upfront payment of $1.2 billion and up to $800 million in milestone payments, totaling up to $2 billion. GSK will also assume responsibility for additional milestone payments and tiered royalties to Novartis (SIX:NOVN) Pharma AG related to efimosfermin.

Efimosfermin is described as a phase III-ready, investigational specialty medicine intended for the treatment and prevention of progression of steatotic liver disease (SLD), including metabolic dysfunction-associated steatohepatitis (MASH) and alcohol-related liver disease (ALD). The medicine is a once-monthly subcutaneous injection of a fibroblast growth factor 21 (FGF21) analog, currently in clinical development for moderate to advanced fibrosis, including cirrhosis. According to the statement, MASH and ALD are leading causes of liver transplant in the United States.

GSK acquired BP (NYSE:BP) Asset IX, Inc., a subsidiary of Boston Pharmaceuticals, to obtain efimosfermin. The company noted that efimosfermin is not yet approved for use in any country.

Kaivan Khavandi, Senior Vice President and Global Head of Respiratory, Immunology and Inflammation R&D at GSK, stated, “The close of our acquisition for efimosfermin alfa represents a significant expansion of our hepatology pipeline aimed at addressing steatotic and viral drivers of liver disease. Efimosfermin is a key growth opportunity for GSK with multiple development options and potential first launch in 2029.”

GSK indicated that the addition of efimosfermin expands its pipeline for fibro-inflammatory diseases across liver, lung, and kidney. The company is also developing GSK’990, a siRNA therapeutic for other subsets of patients with SLD.

This article is based on a statement from a press release filed with the SEC.

This article was generated with the support of AI and reviewed by an editor. For more information see our T&C.

Latest comments

Risk Disclosure: Trading in financial instruments and/or cryptocurrencies involves high risks including the risk of losing some, or all, of your investment amount, and may not be suitable for all investors. Prices of cryptocurrencies are extremely volatile and may be affected by external factors such as financial, regulatory or political events. Trading on margin increases the financial risks.
Before deciding to trade in financial instrument or cryptocurrencies you should be fully informed of the risks and costs associated with trading the financial markets, carefully consider your investment objectives, level of experience, and risk appetite, and seek professional advice where needed.
Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. The data and prices on the website are not necessarily provided by any market or exchange, but may be provided by market makers, and so prices may not be accurate and may differ from the actual price at any given market, meaning prices are indicative and not appropriate for trading purposes. Fusion Media and any provider of the data contained in this website will not accept liability for any loss or damage as a result of your trading, or your reliance on the information contained within this website.
It is prohibited to use, store, reproduce, display, modify, transmit or distribute the data contained in this website without the explicit prior written permission of Fusion Media and/or the data provider. All intellectual property rights are reserved by the providers and/or the exchange providing the data contained in this website.
Fusion Media may be compensated by the advertisers that appear on the website, based on your interaction with the advertisements or advertisers
© 2007-2025 - Fusion Media Limited. All Rights Reserved.