Journal
MULTIPLE SCLEROSIS JOURNAL
Volume 28, Issue 5, Pages 842-846Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/13524585211061335
Keywords
Multiple sclerosis; alemtuzumab; autoimmunity; treatment outcome; risk assessment; product surveillance; post-marketing
Categories
Funding
- Sanofi
- Bayer Healthcare Pharmaceuticals
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In individuals with relapsing-remitting multiple sclerosis (MS) after alemtuzumab, preexisting or treatment-emergent autoimmunity does not increase the risk of subsequent autoimmune disease. Additionally, thyroid autoimmunity after alemtuzumab treatment does not lead to an increased risk of non-thyroid autoimmune adverse events. Post-marketing safety data contribute to a comprehensive understanding of the benefits and risks of alemtuzumab in the field of MS.
Does preexisting or treatment-emergent autoimmunity increase the risk of subsequent autoimmune disease in individuals with relapsing-remitting multiple sclerosis (MS) after alemtuzumab? In the extended phase 2/3 trials, 34/96 (35.4%) patients with and 395/1120 (35.3%) without preexisting autoimmunity developed non-MS autoimmunity. Thyroid autoimmunity after alemtuzumab courses 1 or 2 did not increase subsequent non-thyroid autoimmune adverse events. Therefore, autoimmune disease before or after alemtuzumab treatment does not predict autoimmunity after further courses, so should not preclude adequate alemtuzumab dosing to control MS. Finally, post-marketing safety data contribute toward a full record of the alemtuzumab benefit/risk profile for the MS field.
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