Abstract submissions for the 10th Joint ACTRIMS-ECTRIMS Meeting open on March 24, 2026. Authors can submit abstracts on a wide range of topics related to multiple sclerosis and other demyelinating diseases, categorized into four primary areas: 

• Clinical Aspects of MS 

• Pathology and Pathogenesis of MS 

• Imaging and Non-Imaging Biomarkers 

• Therapy 
  

Accepted abstracts may be presented as an Oral Presentation, Poster Presentation, or ePoster only. Abstracts will be published in the Multiple Sclerosis Journal (online supplement) and featured on the MSToronto2026 website, mobile app, and digital platform.