Researchers have created a detailed plan to study how well different medications work for people who have both bipolar disorder and opioid use disorder. The study will look at health records from adults in British Columbia and Ontario, Canada, who started treatment for bipolar disorder between 2010 and 2023. They plan to compare several common treatments, including lithium, other mood stabilizers, certain antipsychotics, and combinations of these medications.
The study will measure important outcomes like psychiatric hospital visits, whether people stop their treatment, and death from any cause. This type of research, called a target trial emulation, uses existing health data to try to answer questions that would normally require a randomized controlled trial. It's an observational study, which means researchers will look back at what treatments people already received rather than assigning treatments.
It's important to understand that this is only a study protocol—a plan for how the research will be done. No results or findings are available yet. The eventual findings will come from analyzing administrative health records, which have limitations compared to clinical trials specifically designed to test medications. This research could eventually help inform treatment decisions, but for now, it's simply a well-designed plan for future analysis.