Participants are randomised using a telephone-based interactive voice response service through the Robertson Centre for clinical trials

NHS and third sector homelessness worker outreach for people experiencing homelessness, to reduce the risk of street drug overdose

This study helps homeless adults who have used street drugs and been in trouble with the police. It offers weekly visits from an NHS health worker and a homelessness charity worker to improve health, reduce overdoses, and find safe housing. Half get these visits, half get usual care.