ISTH appointed APCO to increase awareness of blood clots as a patient safety
issue at the WHO and to establish a standardized approach to blood clot prevention. APCO helped
ISTH to form a coalition of NGOs and UN member states to publish expert clinical guidance on blood
clot prevention and the treatment of COVID-19 related blood clots. In January 2021, the WHO
published a revised and comprehensive clinical guideline on treating COVID-19 related blood clots.
Furthermore, the WHO recognized blood clots as a priority patient safety issue in a resolution tabled
at the World Health Assembly.