European Committee for Treatment and Research in Multiple Sclerosis

Welcome to ECTRIMS

We’re the world’s largest professional organisation dedicated to the understanding and treatment of multiple sclerosis. For over 40 years, we’ve united the global MS community to drive research, share knowledge, and improve care for people living with MS — empowering scientists and clinicians worldwide to transform lives.

Our annual congress stands as the premier global event for researchers, clinicians, and healthcare providers dedicated to advancing the field of MS and related diseases. This year, MSToronto2026 is a joint ACTRIMS-ECTRIMS congress, hosted in Toronto, Canada from 21-23 October 2026.

Take me to MSToronto2026

Latest News

🎧 Fenebrutinib in PPMS

Podcast | 7 February 2026

New Phase 3 data presented at ACTRIMS suggest fenebrutinib may meaningfully impact non-relapsing progressive disease biology.

ECTRIMS Winter School 2026

VIDEO | 5 FEBRUARY 2026

Learn how the Winter School in Ljubljana, Slovenia brought clinicians and researchers together to deepen their expertise in the diagnosis and management of NMOSD and MOGAD.

Save the Date: MSToronto2026

Event | 21-23 October 2026

The 10th Joint ACTRIMS-ECTRIMS Meeting will unite researchers, clinicians, and healthcare practitioners from around the world in Toronto, Canada.

New Spotlight: Ageing and MS

Spotlight | 19 January 2026

This Spotlight discusses the current evidence and open questions related to the clinical management of older people with MS.

Ageing With MS: How Do Treatment Strategies Change?

🎧 Harnessing the Gut Microbiome in MS

Podcast | 13 January 2026

How close are we to translating gut microbiome research into meaningful clinical interventions?

Episode 65: Harnessing the Gut Microbiome in MS: From Insight to Intervention

Unveiling the Impact of PCD 2025

Impact Report | 1 December 2025

Our Community, Our Progress. Enjoy a detailed look at the people, insights, and global impact of Patient Community Day 2025.

PCD 2025 Impact Report

Our Commitment

Mission: to facilitate communication, create synergies, and promote and enhance research and learning among professionals for the ultimate benefit of people affected by MS.

Vision: to work with researchers and clinicians of ECTRIMS member countries and with other organisations that share similar missions and objectives on a worldwide scale, creating networking and collaboration opportunities. The ultimate goal of ECTRIMS is to improve basic and clinical research and clinical outcomes in MS.

Learn more

Our Annual Congress

ECTRIMS hosts the world’s largest and most influential congress devoted to basic and clinical research and care in multiple sclerosis.

Our annual congresses bring together 9,000+ specialists from across the globe, offering a host of educational sessions, plenary lectures, posters and young investigator sessions, as well as meet-the-expert opportunities.

Next Congress: MSToronto2026

Our Year-Round Learning

At the heart of ECTRIMS 365 programme is the belief that as a community dedicated to finding better treatment options for people living with MS, we function at our best when we can collectively share, nurture and support learning opportunities.

Designed to provide year-round, curated-learning, ECTRIMS 365 enables and equips specialists and generalists across research and clinical practice with up-to-date knowledge & skills via our year-round learning opportunities including fellowships, educational workshops, podcasts, webinars and our blog.

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