​A new study from Rigshospitalet has demonstrated a link between the drug cyproterone acetate (Androcur®) and a type of brain tumour known as a meningioma. Among other things, the drug is used for male-to-female transgender hormone therapy.

​In a Danish-Norwegian collaboration, researchers have shown a slightly increased rate of rare but serious types of cerebral blood clots as well as a generally increased rate of venous blood clots following vaccination with the AstraZeneca vaccine. The risk of such adverse events is considered very low for the individual vaccine recipient.