We have funded an arms-length study, through the Canadian Research Initiative in Substance Misuse, on safe supply programs in 11 sites across the country.
The early research results coming out suggest that for highly marginalized clients—those who have limited access to health services—safe supply is helpful and effective in reducing cravings, time on the streets and deaths. However, it has also been shown that it works best when wraparound services are also there. The critical element is that with wraparound services, clients are expected to attend and participate in allied health and social services. That's when safe supply is most effective.
I will also mention, of course, that safe supply really is part of prescribing practices overall, which started in the 1990s and led to the situation we're in today. The term “diversion” is also not new. It's been around since the 1990s because of prescribing practices.
When prescribing practices were curtailed, more people went to the streets. The second wave of the opioid crisis was when people could no longer receive prescribed opioids, so they went to the streets and started to overdose on heroin. The heroin, which was the second wave of the toxic drug crisis, was then supplanted in approximately 2010-13, when fentanyl arrived for the first time. It took over from heroin and became the drug of choice on the streets, where very small amounts lead to overdose deaths.
I think it's important to note that when we speak about safe supply, we're talking about part of a range of prescribing practices—good and bad—that have been part of how this crisis began in the first place. These would have to be considered scientifically as part of the go-forward regardless, because prescribing opioids is one of the few approaches we have right now for treating chronic pain and cancer pain.