Shares in the UK's biggest drug companies led the way on Wednesday, following news overnight that the US government had agreed its first deal on "most favoured nation" drug pricing with Pfizer.
Topping the FTSE 100, AstraZeneca PLC (LSE:AZN, NASDAQ:AZN) shares leapt 6% in early morning trading, followed by Hikma Pharmaceuticals PLC (LSE:HIK, OTC:HKMPF) at just under 5%, while GSK PLC (LSE:GSK, NYSE:GSK) rose 2.1% as analysts said it had slightly more exposure to Medicaid price discounts.
In an announcement from the White House, President Trump said Pfizer was the first pharma company to start offering "major discounts" to US customers on most of its prescription drugs.
The US company said it had been given a three-year "grace period" during which time its products will not face tariffs, provided it provides these discounts and ups investment in US manufacturing.
Pfizer said it would offer a "large majority" of its primary care and some select speciality medications at discounts of up to 85%, averaging around 50%.
The agreement "provides certainty from tariffs and clarity on pricing framework that furthers Pfizer’s ability to expand investment in US-based innovation and return manufacturing to the US," it said.
Trump said talks were underway with other big pharma companies, which may face an additional 5-8% tariff if no trade agreements are reached.
Last night, shares in Pfizer rose 6.8% and the news seemed to provide a shot in the arm for the rest of the sector, with gains above 3% for Merck & Co, Eli Lilly, AbbVie and Amgen.
There's lots of analyst commentary on the Trump administration's Pfizer deal on 'most favoured nation' (MFN) pricing from last night.
Analysts at JPMorgan said they see the agreement on MFN as "likely to be replicated by EU pharma companies" and should result in a "broadly manageable impact".
With Pfizer agreeing to MFN prices on almost all of their portfolio through the Medicaid channel, in line with President Trump’s request
in July, JPMorgan said Medicaid exposure is "relatively modest" for EU pharma companies.
AstraZeneca was calculated to have 5% of sales with Medicaid exposure, in line with other European giants like Novartis, Roche and Novo Nordisk, while GSK has a higher exposure of around 10-15% due to its HIV drugs.
With Medicaid net prices typically around 20-30% higher than the EU, adoption of MFN pricing for Medicaid by EU pharma is estimated to result in an average 1% negative impact on group sales and a 2% hit to group earnings, before any potential cost mitigation measures, the analysts said.
For new drug launches, Pfizer committed to pricing new drugs in the US in-line with MFN countries, which JPMorgan sees as "broadly manageable for EU Pharma if agreed to".


