Campaign groups in the UK say the government has acted unlawfully in implementing a key element of the UK-US trade deal related to how NHS-approved drug prices are set. The groups—including Just Treatment and Global Justice Now—have written to the government warning that they will seek legal action unless the change is withdrawn. Their argument is that alterations to the way treatments are approved for use by the NHS could allow the health service to pay higher prices for drugs.\n\nThe campaigners describe the government’s move as an “unlawful power grab” and frame it as affecting drug price control frameworks tied to the trade agreement. They say the proposed changes shift decision-making in a way that is not consistent with the legal basis or intended safeguards around pricing.\n\nAt this stage, the reporting describes the threat and the initial correspondence as the first step in a potential legal challenge. The government’s position and whether it will revise its approach are not set out in the provided accounts.