Recent Innovations to Detect and Intervene to Prevent Opioid Overdose Deaths.

Opioid overdose deaths have become a rapidly growing global health crisis, with current estimates indicating over 125,000 deaths annually worldwide. This crisis has reached particularly high levels across North America, where the USA recorded over 100,000 opioid-related deaths in 2022, while the UK has seen mortality rates surpass those from road traffic accidents. Despite the scale and urgency of this public health emergency, opioid overdose remains an area of strangely 'undone science'. Five interconnected areas of research are examined, addressing critical gaps in our understanding and our response to opioid overdose events. We analyse epidemiological evidence establishing the scope and patterns of opioid-related mortality, explore laboratory-based overdose research, investigate technological solutions for overdose detection through wearable devices, examine emergency alert systems and community-based interventions, and address innovations in overdose prevention, encompassing both current developments in naloxone formulations and emerging technological advances that may shape future interventions. A comprehensive examination describes how recent innovations enable experimental investigation of heroin overdose in the clinical laboratory alongside the testing of wearable sensors to detect overdose, and the development of new formulations of naloxone, which are more tailored for use by a non-medical and non-clinical workforce. Through such approaches, we can examine previously overlooked areas of research and will, in future, be able to detect and intervene more effectively to prevent opioid overdose deaths.