A Special International edition of CPDD Newsline is now live, showcasing seven research highlights that demonstrate how substance use science thrives when grounded in local context and strengthened through global collaboration. Curated by the CPDD International Committee, this special edition reflects the Committee’s mission to elevate substance use research and treatment worldwide by recognizing promising scientists and supporting CPDD members working across diverse health systems and cultural settings. From Brazilian outpatient programs and North American health data infrastructures to community-informed approaches emerging from the Caribbean, Colombia, Pakistan, West Africa, and Europe, each contribution illustrates how innovation often begins by meeting real-world constraints head-on.
Across these profiles, a clear message emerges: rigorous international research relies on practical wisdom—building durable partnerships, harmonizing data and definitions across jurisdictions, and designing methods that truly fit cultural meaning, literacy levels, and on-the-ground realities like connectivity, regulatory variation, and workforce constraints. This issue also highlights how policy environments shape both challenges and opportunities, from evolving cannabis surveillance to the shifting roles of drug courts under legalization. Many featured researchers actively welcome new collaborators, offering expertise in clinical trials, digital health, epidemiology, prevention, and narrative-based approaches. Our hope is that this issue doesn’t just expand perspectives—it sparks new cross-border partnerships that strengthen the science and accelerate solutions for substance use and related harms worldwide.