Safer Opioid Supply programs: Hydromorphone prescribing in Ontario as a harm reduction intervention to combat the drug poisoning crisis.

Setting: The crisis of unregulated fentanyl-related overdose deaths presents a significant public health challenge. This article describes the implementation and evaluation of four Safer Opioid Supply programs (SSPs) in Ontario, one in London and three in Toronto.

Intervention and implementation: SSPs aim to curtail overdose fatalities while connecting individuals using drugs to healthcare services. The programs involve a daily dispensed prescription of immediate-release hydromorphone tablets for take-home dosing alongside an observed dose of long-acting opioids like slow-release oral morphine. Implemented within a multidisciplinary primary care framework, these programs emphasize patient-centred approaches and comprehensive health and social support.

Outcomes: In our study conducted in 2020/2021, clients and service providers reported that receiving pharmaceutical opioids through these programs improved the clients' health and well-being. The regulated supply was reported to lead to decreases in overdose incidents, use of unregulated substances, and criminalized activities. Increased engagement with healthcare and harm reduction services and improvements in social determinants of health, such as food security, were also reported. Despite these positive outcomes, some implementation challenges, including capacity issues and provider burnout, were described by service providers.

Implications: Our findings suggest that the combination of safer supply, wrap-around support, and harm reduction within primary care settings can lead to increased healthcare engagement, HIV/HCV prevention, testing, and treatment uptake, reducing the burden of infectious diseases and overdose risk. SSPs have the potential to meaningfully reduce overdose rates, address the ongoing overdose crisis, and if scaled up, influence population-level outcomes.