A Leader in Multiple Sclerosis

Since 2011, Sanofi Genzyme has rapidly emerged as a leader in multiple sclerosis (MS), an often disabling disease of the central nervous system affecting more than 2.3 million people worldwide.

MS is a chronic disease that affects each person differently, with symptoms ranging from numbness in the limbs or forgetfulness to paralysis or loss of vision. MS is caused when the body’s immune system attacks the central nervous system, damaging the myelin sheath—the protective layer covering the nerves that carry signals between the brain and spinal cord and the rest of the body.

Our personalized approach

We recognize that truly personalized medicine involves developing relationships with patients and caregivers, health care providers, and disease organizations and foundations.

MS One to One® is a support program aimed at empowering anyone living with multiple sclerosis (MS). The program is available to anyone affected by MS—people living with MS, their family members, and their support partners.

Our goal is to support and empower you by answering your questions and helping you to partner with your healthcare team.


Find out how you’re doing  with our 
MS Personal Quiz.
Start a conversation 
using our 
Doctor Discussion Guide.
Record your symptoms with our 


We believe that having a strong support network can make a real difference. That’s why we offer round-the-clock support.

Our Nurses are available 24/7 to assist you and to answer any questions you may have. You can also visit us at msonetoone.com for additional resources and tools to help you manage your MS.

Visit www.MSOnetoOne.com to sign up or to learn more. 


Our research and development efforts remain focused in areas where we believe we have the strongest potential to help patients in need. This includes early-stage programs on preventing and repairing the damage to the nervous system caused by MS.

Inspired by patients around the world

Learn more by visiting our website





(c)2019 Genzyme Corporation. All rights reserved. 
MS One to One, Sanofi, and Genzyme are registered trademarks in the US and Patent Trademark office.
Last updated October 2019.