
Cancer Risk in MS
Few conversations in the MS clinic generate as much anxiety as the one about cancer. Disease-modifying therapy labels can carry explicit malignancy warnings, and patients understandably arrive asking whether the drug meant to protect their brain might be putting the rest of their body at risk. What often goes unsaid is the other half of the story: several medications now used in MS started out as cancer drugs. Rituximab was a cornerstone of treatment for B-cell lymphoma, and cladribine was first approved for hairy cell leukemia. The relationship between MS therapy and cancer runs in both directions, and the warning labels tell only one side of it. This episode works through what the evidence actually shows. We discuss the mechanisms behind cancer risk with common MS therapies and how a country that has tracked its entire MS population since 1956 can answer questions no three-year trial could. What do 34,000 patients followed for life reveal now that most are on high-efficacy therapy? The conversation also covers why absolute numbers change the discussion, which screenings belong on the calendar for different drug classes, and which symptoms are too easily written off as MS. We also explore why oncologists often advise staying on B-cell therapy after a cancer diagnosis and long-term data showing newly diagnosed patients keeping their mobility and their jobs far longer than the generation before them. Jameson Holloman MD, neurologist at The MS Center for Innovations in Care, interviews: Esther Melamed MD, PhD, Associate Professor of Neurology, and Associate Chair for Research in the Department of Neurology at Dell Medical School, University of Texas, Austin Melinda Magyar MD PhD, a senior consultant neurologist at the Danish Multiple Sclerosis Center at Rigshospitalet, Associate Professor of Neurology at the University of Copenhagen, and Director of the Danish Multiple Sclerosis Registry


















