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Updated: Feb 6, 2026

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
[Additional possible mechanisms of the action of ocrelizumab in multiple sclerosis on example of a case-report]
O V Boyko1, I I Khoroshylova2, S V Petrov2
1Pirogov Russian National Research Medical University, Moscow, Russia; OOO 'Neuroclinica', Moscow, Russia.
Abstract:
Anti-B-cells products, including the anti-CD20 monoclonal antibody ocrelizumab, are widely coming to multiple sclerosis (MS) therapy. Its clinical-MRI efficacy in MS with relapses as well in primary progressive MS (PPMS) was proved by three phase III clinical studies. One example of the use of ocrelizumab use in aggressive MS showed the possibility of action on the leptomeningeal folliculi, seen at contract-enhancing MRI images.
Insights
Anti-B-cell therapies, such as ocrelizumab, are effective for multiple sclerosis (MS). This anti-CD20 antibody shows clinical and MRI benefits in relapsing MS and primary progressive MS (PPMS), even impacting leptomeningeal changes.
Area of Science:
- Neuroimmunology
- Pharmacology
Background:
- Anti-B-cell therapies targeting CD20 are emerging treatments for multiple sclerosis (MS).
- Ocrelizumab, an anti-CD20 monoclonal antibody, has demonstrated efficacy in clinical trials.
Purpose of the Study:
- To review the clinical and MRI efficacy of ocrelizumab in multiple sclerosis.
- To highlight the potential of ocrelizumab in aggressive MS and its effect on leptomeningeal changes.
Main Methods:
- Review of three phase III clinical studies evaluating ocrelizumab in MS.
- Case example of ocrelizumab use in aggressive MS with MRI analysis.
Main Results:
- Ocrelizumab demonstrated clinical and MRI efficacy in both relapsing MS and primary progressive MS (PPMS).
- The use of ocrelizumab in aggressive MS showed potential effects on leptomeningeal folliculi visualized by contrast-enhancing MRI.
Conclusions:
- Ocrelizumab is a clinically effective anti-CD20 therapy for multiple sclerosis, including PPMS.
- Ocrelizumab may influence pathological processes in aggressive MS, such as leptomeningeal inflammation.
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