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Stay informed on the latest advancements in MS diagnosis & treatment from the National MS Society Regional Summit, covering misdiagnosis challenges, new MRI techniques, neurofilament light chains, emerging DMTs, and Remyelination strategies. Discover how to accurately diagnose MS and select appropriate treatments, ensuring better patient care and outcomes.
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Research Update Marwa Kaisey, MD National MS Society Regional MS Summit September 28th, 2019
Disclosures • Speaking & Consulting for Biogen, Genentech, and Celgene Neurology
Overview • Diagnostic criteria – what’s new, misdiagnosis • Central vein/new imaging • Neurofilament • New DMTs • Remyelinating treatments • Stem cell treatment
How do we diagnose MS? Neurology
History of Multiple Sclerosis Diagnostic Criteria Charcot (1868) “La sclerose en plaques disseminees” Marburg (1906) anothertriad Allison and Millar (1954) “an arbitrary scheme” Broman (1965) dissemination in space and time McDonald (2005) Clinical evaluationstill important! Schumacher (1965) clinically definite McDonald (2017) CSF makes a come-back McDonald (2010) Diagnose with a single MRI McDonald (2001) MRI wide-spread McAlpine (1972) similar to Allison and Millar Rose (1976) similar to Schumacher McDonald and Halliday (1970s) evoked potentials Poser (1983) laboratory-supported definite and probable Neurology
2017 McDonald Criteria • STILL have to prove dissemination in space and dissemination in time of typical • symptoms with no alternate diagnosis. • Clinical • MRI • CSF (can now be used to replace dissemination in time)
2017 McDonald Criteria Neurology
2017 McDonald Criteria Neurology
2017 McDonald Criteria – The Updates Dissemination in time - new lesion on follow-up MRI OR - simultaneous enhancing* and non-enhancing lesions OR - CSF oligoclonal bands* *new in 2017 • Dissemination in space • - T2 hyperintense lesions in 2+ areas: • Periventricular • Juxtacorticalor cortical* • Infratentorial • Spinal cord Neurology
So are we now perfect at diagnosing MS? Neurology
Misdiagnosis: a big problem in multiple sclerosis “These brain cuttings were popular sessions… On one memorable occasion, we examined the brains of five patients who had been diagnosed in life as having multiple sclerosis. The brain cuttings, however, revealed that all of them had been misdiagnosed.” – Oliver Sacks, On the Move, 2015. Neurology
Misdiagnosis in multiple sclerosis Neurology
Misdiagnosis in multiple sclerosis Neurology
Underdiagnosis Misdiagnosis in multiple sclerosis Overdiagnosis
New patients referred to Cedars-Sinai and UCLA neuroimmunology clinics July 2016-June 2017 Kaisey et al, unpublished
New patients referred with firm diagnosis of MS July 2016-June 2017 17% do not have MS 19% do not have MS
Final diagnosis in misdiagnosed patients Kaisey et al Neurology
Final diagnosis in misdiagnosed patients Neurology
Characteristics of patients with MS misdiagnosis Cedars-Sinai (n=115) UCLA (n=127) Multiple logistic regression α = 0.05
New MRI techniques Neurology
New MRI techniques: Central vein Absinta, 2016
New MRI techniques: Central vein neuropathology-web.org
New serum tools: neurofilament light chains Gaetani et al. J Neurology, Neurosurgery & Psychiatry 2019
New serum tools: neurofilament light chains Disanto et al, Annals of Neurology, 2017
New serum tools: neurofilament light chains Nfl increases with: -age -other neuordegerative disease -brain injury Disanto et al, Annals of Neurology, 2017
New serum tools: neurofilament light chains How do we more accurately diagnose MS? Barro et al. Brain 2018
MS Phenotypes Lublin et al, Neurology 2014
MS Phenotypes Courtesy of National MS Society
New(ish) MS Treatments • Cladribine – oral – purine analog (/azathioprine)
New(ish) MS Treatments • Cladribine – oral – purine analog (/azathioprine) • Siponimod – oral – S1P1 (P5) receptor mod (/fingolimod)
New MS Treatments • Novel mechanism: evobrutinib – • Burton’s Tyrosine Kinase (BTK) inhibition
New MS Treatments • Novel mechanism: evobrutinib – • Burton’s Tyrosine Kinase (BTK) inhibition • Phase III: evbobrutini BID PO vs interferon beta-1a IM
New MS Treatments • Novel mechanism: evobrutinib – • Burton’s Tyrosine Kinase (BTK) inhibition • Phase III: ebobrutini BID PO vs interferon beta-1a IM • Target completion in 2023
So we’re getting even better at preventing new activity. How about repairing old damage?
Remyelination Strategies • Opicinumab (anti-Lingo 1)
Remyelination Strategies • Opicinumab (anti-Lingo 1) • RENEW, Cadavid et al, Lancet Neurology 2017 • Phase II in acute ON • VEP • vs. placebo