Therapeutic Areas
Going beyond the limits of conventional therapies, our scientists are researching new treatment options in areas so seemingly unrelated that they would never have been considered even a decade ago.
Redefining immunology as we know it, our immunoscience approach is the bedrock of Sanofi’s research and development (R&D) powerhouse. Combining our deep heritage and expertise in immunology, we are evaluating pathways of immunity and how they function independent of specific disease or pathology.
Immunoscience is the connector of our R&D strategy, but it does not limit the depth and breadth of our pipeline. We will continue to pursue all areas of urgent unmet need, and promising scientific discovery, where we are uniquely positioned to achieve innovation for patients. This includes seeking out and engaging with external partners, ensuring we have access to the most innovative and cutting-edge scientific developments in our search of first- or best-in-class medicines.
Explore Our R&D Focus Areas
Immunology
Our heritage in immunology is the foundation for our immunoscience approach to R&D. Our teams are exploring ways to restore balance within the immune system, paving the way for treatments that address the root causes of a range of conditions, including those that may not be commonly associated with an autoimmune or inflammatory response.
Vaccines
Our long history and deep scientific expertise in developing lifesaving vaccines for infectious diseases is driving our efforts to harness immunoscience across many different conditions. Now we are leveraging innovative technologies to develop a new generation of vaccines that use the body’s natural machinery to offer extended duration of protection, enhanced efficacy and improved accessibility.
Neurology
Like the rest of the body, the brain contains immune cells that help regulate the body’s immune response. Exploring the links between immune pathways and the nervous system is driving our R&D in neuroimmunology – the next generation of neuroscience research.
Oncology
Immunotherapies have been successful in the targeted treatment of cancer, but we have still only scratched the surface. Our immuno-oncology teams are leveraging immunoscience to better detect and attack tumors, including harnessing more targeted approaches that weaponize the immune system against cancer without triggering an unwanted immune response.
Rare Diseases
We’re transforming the future for patients with many rare diseases by leveraging our deep understanding of the unique biological drivers that underpin these conditions. Our integrated approach is paving the way for treatments that address the root causes of a range of rare diseases with high unmet needs.
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Our Science
Redefining R&D: How Immunoscience is Driving the Pipeline of the Future
Technology Platforms
Our Latest Science Stories
October 8, 2025
