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Britain's GlaxoSmithKline will receive $1.25 billion (about £921 million) from Gilead Sciences as part of a settlement between its HIV medicines unit and the US-based drugmaker, ending a long-drawn patent dispute. The settlement, announced by GSK on Tuesday (February 1), relates to Gilead's antiretroviral drug Biktarvy, a medicine used to check the AIDS-causing virus, which GSK said in 2018 infringed on its unit ViiV Healthcare's dolutegravir and other similar compounds. HIV medicines developed by ViiV, in which Pfizer and Japan's Shionogi also hold small stakes, are a major part of GSK's plan to support its lagging pharmaceuticals business as it readies to spin off its consumer healthcare arm. The payment is expected to be made in the first quarter this year, London-listed GSK said. Gilead will also pay a 3 per cent royalty until 2027 on sales of Biktarvy and on future US sales of any product containing its main component.

Global demand for Pfizer's oral Covid-19 antiviral treatment Paxlovid has been unexpectedly low due to complicated eligibility requirements, reduced testing, and potential for drug interactions, according to a media report. Demand also has been hampered by the perception that Omicron infections are not that severe. Paxlovid was expected to be a major tool in the fight against Covid after it reduced hospitalizations or deaths in high-risk patients by around 90 per cent in a clinical trial. Thousands of people still die from Covid-19 every week, even as global infections are far off their peak. And there are only a few proven antiviral treatments, of which Paxlovid is the most attractive. The others are Merck & Co's far less effective rival pill molnupiravir, and Gilead Sciences' intravenous remdesivir.