Improvement of international stroke research networks can increase efficiency and reduce waste in clinical trials of stroke treatments.

As conducting investigator-led randomised trials are becoming increasingly complex, and this context poses a serious risk of inefficiency in stroke research, efforts to increase collaboration among European stroke researchers are necessary.

Considering this, the ESO Trials Network Committee established a structure to improve multinational European stroke research collaboration for the long-term – the ESO Trials Alliance (ESOTA).