Nizar El Murr, Principal Scientist and Lab Head in immuno-oncology with his team

Nizar El Murr, Principal Scientist and Lab Head in immuno-oncology with his team

Our Science

We’re determined to find answers for patients, and to develop medicines and vaccines with the potential to improve people’s lives. We focus, and we push our limits. Because when we work together we can grow, take smart risks, learn from failure, and discover the extraordinary. That’s how we turn the impossible into possible. And it’s how we will help make life better for people everywhere.

R&D focus areas


Immunology & Inflammation


Rare Blood Disorders

Rare Diseases


Our investigational medicines and vaccines

Every day, we push the frontiers of science. Thanks to the many people who volunteer to participate in research, our scientists are pursuing new vaccines and medicines with the potential to make life better for patients, families, and communities throughout the world.

Next generation technologies

Our teams have a deep toolbox of cutting-edge tools to design and develop innovative vaccines and precision therapeutics. From scalable gene therapies and mRNA to flexible, multi-target biologics, we have what it takes to battle complex diseases on many fronts.

Voices from the lab

Find out what makes us tick in our Voices from the Lab video series. No matter where we are or what we do, we share a common purpose: to transform cutting-edge science into medicines and vaccines that improve people’s lives.

Meet Nizar El-Murr

How immuno-oncology can give the body a jump-start in its fight against cancer

Meet Virginia Savova

How single-cell genomics is helping scientists achieve precision immunology.

Meet Marie-Priscille Brun

How antibody-drug conjugates are accelerating integrated drug discovery

Science & innovation stories

December 13, 2021

From Wearables to "Invisibles": We’re Collaborating to Study Itch in Sleeping Children

Partnering with us

Collaboration is crucial to success. We are committed to matching our skills and projects with the best professionals and companies, wherever they are in the world.

Our magazine Sanofi Today

June 2, 2023

New Frontiers in Genomic Medicine at Sanofi