Chasing the Miracles of Science to Improve Lives

The Power of Chasing A Dream

Every day, we chase the miracles of science to improve people’s lives. We apply our deep understanding of the immune system to develop breakthrough innovations in medicines and vaccines so you can focus on what matters most, chasing your dreams. So, if you’re chasing your dreams, remember... you’re not alone. We’re right beside you.

People Stories

People are at the heart of every breakthrough. Across the world, individuals from the lab to the community are redefining what’s possible, whether they’re living with complex conditions, advancing pioneering research or helping deliver care that can transform lives. These stories celebrate the people who continue to chase their dreams despite living with a disease, and Sanofians who chase the miracles of science to make those dreams possible.

We’re inspired by the strength, courage, and hope of these people who remind us why our purpose matters - we chase the miracles of science to improve people’s lives. For some, that means finding new ways to manage chronic diseases. For others, it’s about breaking boundaries in science to bring life-changing solutions to patients faster. Together, their journeys reflect our shared belief that improved health unlocks the potential to make dreams a reality.

Céline, from Diagnosis to World Champion Para-surfer

Diagnosed with secondary progressive multiple sclerosis (SPMS) at 30, Céline — who previously described herself as not "sporty at all" — radically reimagined her life. Despite rapidly progressing symptoms affecting her mobility, she chose to pursue what she loves. Through art, para-surfing, and a deep belief in medical science, Céline transformed despair into a dynamic new chapter. Today, she's not only a thriving artist but also captain of the French para-surfing team and a two-time World Champion. Her incredible journey is a powerful testament to resilience, innovation, and the spirit's ability to turn dreams into reality, one wave at a time.

Xavier, a Filmmaker Advocating for Diabetes Representation

At 18, a life-altering autoimmune type 1 diabetes diagnosis ended Xavier's football aspirations but opened an unexpected new path. He traded the field for the stage, discovering a passion for the arts. Today, he's a celebrated filmmaker, writer, and advocate, aiming to create powerful, meaningful diabetes representation on screen. Empowered by visible role models and driven by fatherhood, Xavier champions awareness and embraces scientific advancements that make his dreams possible, proving that a diagnosis can ignite a new, inspiring chase.

Jade, Thriving Despite Atopic Dermatitis

Adopted from Vietnam and diagnosed with atopic dermatitis at three months old, Jade has faced a lifetime of challenges, from intense itching to disrupted sleep. Yet, she refuses to let her condition define her. Instead, she embraces adventure, completing demanding rallies like the 4L Trophy, an annual humanitarian and sporting rally for students, through the Moroccan desert, and channels her experiences into creative expression through music and children's books, including "Lorni et l'eczéma". Jade's journey is a powerful testament to resilience, showing how medical progress, combined with an unwavering spirit, can transform chronic conditions into a source of empowerment and inspiration for herself and others.

Kathi, National Champion and Type 1 Diabetes Advocate

Diagnosed with autoimmune type 1 diabetes (T1D) at 21, Kathi Korn faced a period of deep despair, believing her dreams of motherhood and an athletic career were over. But pregnancy became her turning point, fueling a fierce determination to reclaim her life. She started a YouTube channel to share vital information about T1D and pregnancy, quickly building a thriving community. Kathi not only became a national table tennis champion and a Miss Germany finalist, but also a powerful advocate, authoring a children's book and becoming an ambassador for T1D awareness. Her journey, powered by scientific advancements and an unyielding spirit, shows how a diagnosis can ignite a mission to empower countless others living with T1D.

Nadine, from Black Belt Resilience to Breakthrough Science

Nadine, Sanofi's Cluster Head of Immunology Research, channels her black belt-forged resilience into the challenging world of drug development. Her martial arts background instilled the perseverance and adaptability that are vital in a field where breakthroughs are rare. Driven by a deep desire to understand patients and profoundly impact their lives, her ultimate dream is to see a drug she's worked on gain approval, transforming the lives of those battling autoimmune diseases.

Yaya and Xuanxuan, from an RSV Scare to RSV Advocacy

For new parents Yaya and Xuanxuan, joy turned to terror when their two-month-old son contracted severe Respiratory Syncytial Virus (RSV), battling near-suffocation and an agonizing hospital stay. This harrowing experience, where their baby's life hung in the balance, underscored the critical importance of medical science and prevention. Now, their son is healthy, and Yaya and Xuanxuan have become passionate advocates for infant health and immunization. They share their story to highlight how vital medical advancements are, and how the dream of a healthy, happy child is the most precious of all.

Sophie, from Lab to Life-Changing Medicines

Sophie Borghese, Head of MSAT at Sanofi's Sisteron site, plays a crucial role in bringing new medicines to patients. Her team transforms raw materials into life-changing treatments, bridging the gap between research and commercial production. But Sophie's dedication is deeply personal. Witnessing her uncle's struggle with ALS fuels her long-term dream: to find a cure for devastating diseases. She sees her work as a vital contribution to this mission, driven by the profound hope that science can one day conquer conditions like ALS. Sophie embodies how personal dreams can inspire the relentless pursuit of scientific miracles.

Géraldine's Journey: Finding Purpose in Every Breath

Diagnosed with chronic obstructive pulmonary disease (COPD) in 2014, former emergency department nurse Géraldine faced a devastating challenge that mirrored her father's struggle. The disease, which made even simple movements difficult, threatened to steal her active life. However, a life-threatening hospitalization in 2019 became her turning point. From that moment, Géraldine committed to helping others with COPD. Now an "expert patient" and mentor, she shares her experiences in rehabilitation centers, advocating for activity, community, and the vital role of medical innovation. Her story is a powerful testament to transforming personal struggle into a mission to uplift others, showing how resilience and science can enable dreams even amidst adversity.

Wei, Fueling Drug Discovery with AI and Resilience

Wei Jiang, a Principal Scientist in artificial intelligence at Sanofi, is at the forefront of revolutionizing drug discovery. Driven by a deep commitment to excellence and a pragmatic approach, she was instrumental in creating one of Sanofi's first fully automated labs, capable of executing thousands of experiments daily with robotic precision. Her ambition is fueled by a personal connection—her grandmother lives with COPD—and a belief that physical strength cultivates mental resilience. Wei's ultimate dream is to see her research proposals advance into clinical trials, accelerating the delivery of life-changing therapies to patients worldwide. She embodies the powerful combination of scientific innovation and unwavering determination.

“Having a dream since my diagnosis truly changed my vision of things. Anything is possible.”

Céline, 2x World Champion para-surfer

We Chase the Miracles of Science to Improve People’s Lives

Innovation begins with curiosity, and at Sanofi, that curiosity drives us to chase the miracles of science every day. Across our global research network, thousands of scientists, engineers, and partners are breaking boundaries in science to bring life-changing solutions to patients faster. Guided by one purpose-we chase the miracles of science to improve people’s lives-we are transforming the future of medicine through discovery, technology, and collaboration.

From dermatological and respiratory conditions like atopic dermatitis and chronic obstructive pulmonary disease (COPD) to autoimmune and neurological diseases such as multiple sclerosis and autoimmune type 1 diabetes, we’re chasing the miracles of science to address the root causes of diseases, not just the symptoms, to create lasting change. These breakthroughs exemplify our commitment to deliver high-quality, affordable, sustainable medicines and vaccines to those who need them most, ensuring innovation translates into real-world impact. We chase the miracles of science for a healthier, more resilient world, harnessing cutting-edge science, technology, and human insight to shape a better future for generations to come.

Every discovery at Sanofi is a step toward a healthier, more hopeful future. Health unlocks the potential to make dreams a reality, and through innovation, we’re helping people around the world do just that

Revolutionizing Autoimmune Type 1 Diabetes Care

For over a century, type 1 diabetes (T1D) treatment has focused on insulin replacement. However, for 9.2 million people worldwide, T1D demands constant, daily management.^1-3 Recent scientific breakthroughs reveal that T1D is an autoimmune disease where the body's immune system mistakenly attacks insulin-producing cells.⁴ This new understanding opens the door to a revolutionary approach. Instead of solely replacing insulin, our science is now focused on intercepting the disease early. By targeting the immune system's T cells, we aim to protect vital insulin-producing cells, slowing or even halting disease progression. This could provide more time before clinical diabetes onset and significantly reduce the lifelong burden of managing T1D. We're leading a new era in T1D care, striving to prevent its natural progression, with the ultimate hope of one day stopping it altogether.

Transforming COPD Treatment

Chronic Obstructive Pulmonary Disease (COPD) is a life-threatening respiratory illness, currently the fourth leading cause of death globally, with devastating physical and emotional impacts.^5-8 For decades, treatment focused on managing symptoms like shortness of breath. However, our groundbreaking immunoscience research has unveiled a critical insight: COPD is driven by persistent inflammation within the lungs, stemming from the immune system.⁹ We've discovered that inflammatory pathways, like those in autoimmune diseases, contribute significantly to lung damage, even after environmental triggers are gone.^9,10,11 By understanding these complex immune mechanisms, we're shifting our focus from just symptoms to targeting the underlying inflammatory drivers. Our goal is to transform treatment, enabling people with COPD to breathe easier, live fuller lives, and regain the freedom to chase their dreams.

A Future Unbound by Atopic Dermatitis

Atopic dermatitis is more than just a skin condition; it's a chronic inflammatory disease stemming from an overactive immune response deep within the body.^12,13 While traditional treatments focused on surface symptoms,¹³ our science has shifted to target the root cause. We're exploring innovative ways to interrupt the inflammatory cascade at its earliest stages, blocking the immune system's overreactions before they cause severe pain, redness, and flare-ups. By combining different targets and early interventions, our goal is to revolutionize atopic dermatitis treatment. We aim to offer patients a life with fewer flare-ups, empowering them to move beyond the limitations of their condition and reclaim their dreams.

Modernizing RSV Protection

Respiratory Syncytial Virus (RSV) is a major cause of severe lung infections globally, particularly impacting infants and older adults.^14,15 However, one size does not fit all when it comes to RSV protection. Our immune system evolves throughout life, requiring different strategies at various stages.^16-18 We're rethinking RSV protection by adapting our scientific approaches to age-specific immunity. This means developing tailored solutions – from providing ready-made antibodies for vulnerable infants to boosting the immune systems of older adults. With over half a century of immunoscience research, we're working to protect the most at-risk, ensuring that every generation can live healthier, fuller lives, and chase their dreams unbound by RSV.

Reshaping the Future of Multiple Sclerosis

Multiple Sclerosis (MS) is a complex, unpredictable disease where many patients experience disability progression even without relapses.^19,20 For a long time, the underlying cause of this progression was unclear. Our research has unveiled a critical insight: MS is significantly driven by neuroinflammation. Immune cells mistakenly cross the blood-brain barrier, attacking healthy neurons and activating protective brain cells (microglia) against themselves. This leads to a chronic, low-level blaze of inflammation that causes slow but progressive damage.^19,21 By understanding this connection between the immune system and nerve cells, we're blazing a transformative scientific path. Our goal is to leverage our deep knowledge of immune processes to target and halt neuroinflammation, slow disease progression, and ultimately improve the quality of life for people living with MS, helping them live for the moment, not the disease.

References

International Diabetes Federation. Type 1 Diabetes. Available at https://idf.org/about-diabetes/types-of-diabetes/type-1-diabetes/. Last accessed: September 2025.

Parkkola A, Härkönen T, Ryhänen SJ, Ilonen J, Knip M; Finnish Pediatric Diabetes Register. Extended family history of type 1 diabetes and phenotype and genotype of newly diagnosed children. Diabetes Care. 2013 Feb;36(2):348-54.

PhD, Aaron Breedlove. “The Mental Health Effects of Type 1 Diabetes.” Osu.edu, The Ohio State University, 13 June 2025, health.osu.edu/health/mental-health/managing-diabetes-and-mental-health.

Diabetes. Beta Cells. Available at: https://www.diabetes.co.uk/body/beta-cells.html. Last accessed: September 2025.

Global burden of 288 causes of death and life expectancy decomposition in 204 countries and territories and 811 subnational locations, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021. Naghavi, Mohsen et al. The Lancet, Volume 403, Issue 10440, 2100 – 2132.

Association, American Lung. COPD Trends Brief - Burden, American Lung Association, www.lung.org/research/trends-in-lung-disease/copd-trends-brief/copd-burden.  Accessed September 2025

Chen, Simiao, et al. "The global economic burden of chronic obstructive pulmonary disease for 204 countries and territories in 2020–50: a health-augmented macroeconomic modelling study." The Lancet Global Health 11.8 (2023): e1183-e1193.

Mathioudakis, Alexander G., Sachin Ananth, and Jørgen Vestbo. "Stigma: an unmet public health priority in COPD." The Lancet Respiratory Medicine 9.9 (2021): 955-956.

Oh JY, Sin DD. Lung inflammation in COPD: why does it matter? F1000Research. 2012;4:23.

Yun JH, Lamb A, Chase R, et al; COPDGene and ECLIPSE Investigators. Blood eosinophil count thresholds and exacerbations in patients with chronic obstructive pulmonary disease. J Allergy Clin Immunol. 2018;141(6):2037-2047.e10. doi:10.1016/j.jaci.2018.04.010

Bélanger M, Couillard S, Courteau J, et al. Eosinophil counts in first COPD hospitalizations: a comparison of health service utilization. Int J Chron Obstruct Pulmon Dis. 2018;13:3045-3054.

National Institutes of Health (NIH). Health Topics: Atopic Dermatitis. Available at: https://www.niams.nih.gov/health-topics/atopic-dermatitis. Last accessed September 2025.

Zuberbier T et al. Patient perspectives on the management of atopic dermatitis. J Allergy Clin Immunol. 2006 Jul;118(1):226-32.

Piedimonte G, et al. Pediatr Rev. 2014;35(12):519-530.

Carvajal JJ, et al. Front Immunol. 2019;10:2152.

U.S. Centers for Disease Control and Prevention. “Explaining How Vaccines Work.” https://www.cdc.gov/vaccines/basics/explaining-how-vaccines-work.html Accessed September 2025.

Simon AK, Hollander GA, McMichael A. 2015 Evolution of the immune system in humans from infancy to old age. Proc. R. Soc. B 282: 20143085. http://dx.doi.org/10.1098/rspb.2014.3085

National Institutes of Health. What are mRNA vaccines and how do they work? https://medlineplus.gov/genetics/understanding/therapy/mrnavaccines/Accessed September 2025

Giovannoni G, Popescu V, Wuerfel J, et al. Smouldering multiple sclerosis: the ‘real MS’. Ther Adv Neurol Disord. doi:10.1177/17562864211066751

Frisch ES, Pretzsch R, Weber MS. A Milestone in Multiple Sclerosis Therapy: Monoclonal Antibodies Against CD20—Yet Progress Continues. Neurotherapeutics. 2021;18:1602-1622.

Häusser-Kinzel S, Weber MS. The role of B cells and antibodies in multiple sclerosis, neuromyelitis optica, and related disorders. Front Immunol. 2019;10:201.