King Charles has reportedly been undergoing a 'cutting-edge' and 'very, very expensive' course of cancer treatment combining immunotherapy with experimental RNA drugs, a royal editor claimed in London on 30 April, raising fresh questions over the monarch's long‑term prognosis and how far his health has now improved.
The news came after more than two years of guarded updates from Buckingham Palace, which announced in 2024 that King Charles had been diagnosed with an undisclosed form of cancer. At the time, officials declined to name the type or stage of the disease, saying only that it had been detected early and that the King would continue with a reduced public schedule while receiving treatment under medical supervision.
