In clinical trials, every element of the supply chain matters. From sourcing high-quality comparator drugs to managing timelines across borders, sponsors often ask: which is the bigger challenge, drug sourcing or the logistics that follow? At Clinical Services International (CSI), we believe the answer isn’t either/or. It’s how you manage both that determines trial success. Comparator Sourcing: A Global Jigsaw Puzzle Sourcing comparator drugs can be a significant challenge, p