The trusted global leader in the supply of comparator drugs, medical devices, and ancillaries for clinical trials
Request a
Our team’s scientific experience and global project management expertise enable us to deliver tailor-made solutions to support your study
ABOUT
IQ
CSI ComparatorIQ™ is our proprietary, science-led approach to comparator sourcing, designed to reduce risk, optimise supply, and support smarter decision-making from day one. By combining clinical expertise with intelligent protocol analysis, it ensures the right comparators are sourced, in the right quantities, at the right time.
With offices around the world and warehouses in 60 countries, we are equipped to provide solutions to the most complex clinical supply requirements
Locations ›With decades of combined experience in the field of drug development, we understand the successful design and execution of clinical trial supply
Leadership ›We are proud to be the trusted global partner of leading pharmaceutical and biotechnology companies, and Clinical Research Organisations (CROs)
Our Partners ›We have supplied oncology products to more than 700 studies, from generics to the most sophisticated cold chain biologics
Oncology Products ›CSI is committed to improving trial success rates, patient safety and the progress of medicine. We are proud to be Women Owned and EcoVadis certified
Our Values ›As a reliable global partner, our comprehensive knowledge of international regulations and compliance lies at the heart of all the services we provide
Quality ›
Every member of the CSI team holds a scientific degree, so we engage with the technical nuances of each protocol, not just the logistics.
IQ
By analysing protocol factors early, CSI identifies potential risks, anticipates challenges, and builds a supply strategy aligned to the realities of the study.
CSI's sourcing capabilities are served by an extensive network of audited manufacturers and suppliers, strategically positioned across 60 countries on six continents
CSI is a proud supplier to top-ten pharmaceutical companies and leading biotechs around the world, providing tailor-made solutions and country-specific regulatory expertise to boost success rates for even the most complex global trials
Discover moreAlong with our smart sourcing solutions and unrivalled product access, we manage the entire supply chain, allowing CROs to concentrate on finding patients and delivering successful clinical trials – saving time, money and resources
Discover moreCSI works closely with world-class academic institutions, universities, hospitals and research centres that are producing cutting-edge medical research, supporting them by providing cost-effective and compliant clinical trial supplies
Discover more
Clinical Services International (CSI) is pleased to share that our CEO, Dr Vanessa Dekou, has been featured in the August 2026 edition of Life Sciences Review. In her Leadership Perspective, “Comparator Medicine Sourcing: A Critical Success Factor in Biosimilar Development,” Vanessa explores the increasingly important role of comparator sourcing in biosimilar development and the challenges sponsors face when managing global supply requirements.
Read all →
Sponsors often request every quality document available when sourcing comparators or co-medications. That instinct is understandable, but it can slow sourcing, raise cost, and exclude workable supply routes. This guide explains what a Certificate of Analysis (CoA), Batch Release Certificate (BRC), a
Read all →
A recent article from Fierce Biotech highlights the world's top emerging biotech hubs for 2026, showcasing the regions attracting investment, innovation and the next generation of life sciences companies. As these biotech ecosystems continue to grow, proximity matters.
Read all →