How Often the EU Revokes a Marketing Authorisation, and What the Aumseqa Case Means for Royalty Investors
On 25 September 2026 the European Commission revoked the marketing authorisation for Aumseqa (aumolertinib), a lung-cancer drug developed by Hansoh Pharmaceutical of China. It had granted that authorisation on 12 February 2026, so the approval lasted 225 days. Hansoh reports no sales revenue outside China. The decision turned on