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Long-term safety an...
Long-term safety and effectiveness of natalizumab treatment in clinical practice: 10 years of real-world data from the Tysabri Observational Program (TOP)
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Butzkueven, H (författare)
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Kappos, L (författare)
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Wiendl, H (författare)
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Trojano, M (författare)
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Spelman, T (författare)
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Chang, I (författare)
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Kasliwal, R (författare)
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Jaitly, S (författare)
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Campbell, N (författare)
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Ho, PR (författare)
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Licata, S (författare)
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- 2020-03-31
- 2020
- Engelska.
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Ingår i: Journal of neurology, neurosurgery, and psychiatry. - : BMJ. - 1468-330X .- 0022-3050. ; 91:6, s. 660-668
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https://jnnp.bmj.com...
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http://kipublication...
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https://doi.org/10.1...
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Abstract
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- The Tysabri Observational Programme (TOP), which began >10 years ago, is an open-label, multinational, prospective observational study evaluating the long-term safety and effectiveness of natalizumab in relapsing-remitting multiple sclerosis patients.MethodsThese data provide a 10-year interim analysis of safety and effectiveness in TOP. Annualised relapse rates (ARRs) and disability progression/improvement were analysed using the Poisson model and the Kaplan-Meier method, respectively. Analyses included patients on natalizumab and those who discontinued natalizumab but remained in TOP.ResultsAs of November 2017, TOP included 6148 patients. Overall, 829 patients (13.5%) experienced ≥1 serious adverse event (SAE), with infection the most common (4.1%). Fifty-three patients (0.9%) had confirmed progressive multifocal leukoencephalopathy. SAE data were consistent with natalizumab’s known safety profile; no new safety signals were identified. A total of 3210 patients (52.2%) discontinued natalizumab; 2117 (34.4%) withdrew from TOP. Median time on natalizumab was 3.3 (range 0–11.6) years; median follow-up time was 5.2 (range 0–10.8) years. The on-natalizumab ARR was 0.15, a 92.5% reduction from the year before initiation. Ten-year cumulative probabilities of disability worsening and improvement were 27.8% and 33.1%, respectively. On-natalizumab ARRs were similar between patients who discontinued or remained on natalizumab, suggesting limited attrition bias.ConclusionsSince the TOP 5-year interim analysis (December 2012), cohort size (6148 vs 4821), median exposure (3.3 vs 1.8 years) and median follow-up time (62 vs 26 months) have increased. This 10-year interim analysis further supports the robust real-world effectiveness and well-established safety profile of natalizumab.Trial registration numberNCT00493298.
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Butzkueven, H
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Kappos, L
-
Wiendl, H
-
Trojano, M
-
Spelman, T
-
Chang, I
-
visa fler...
-
Kasliwal, R
-
Jaitly, S
-
Campbell, N
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Ho, PR
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Licata, S
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visa färre...
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Journal of neuro ...
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Karolinska Institutet