Trial reportJournal of neurology2013
Clinical effects of natalizumab on multiple sclerosis appear early in treatment course.
Trial report in Journal of neurology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 57 citations in OpenAlex.
- Natalizumab for multiple sclerosis.The Cochrane database of systematic reviews · 2025Pooled it
- Pooled it
- Trial
- Trial
- Onset of clinical and MRI efficacy occurs early after fingolimod treatment initiation in relapsing multiple sclerosis.Journal of neurology · 2016Trial
- Time course of clinical and neuroradiological effects of delayed-release dimethyl fumarate in multiple sclerosis.European journal of neurology · 2015Trial
- Ozanimod Reduces Serum Neurofilament Light Chain (NfL) and Glial Fibrillary Acidic Protein (GFAP) and Modulates Innate and Adaptive Immunity in Patients with Low-to-Moderate Activity Relapsing-Remitting Multiple Sclerosis.International journal of molecular sciences · 2026Observational
- Two-year OCT follow-up in multiple sclerosis patients on Ofatumumab shows retinal preservation over non-antiCD20 treatments.Journal of neurology · 2026Observational
- Simultaneously Dealing With Immortal Time Bias and Residual Confounding: A Case Study of a High-Dimensional Propensity Score Approach With a Nested Case-Control Framework in Multiple Sclerosis Research.Pharmacoepidemiology and drug safety · 2025Article
- Impact of Natalizumab on Productivity and Ability to Work in Patients with Multiple Sclerosis in France: The TITAN Study.Neurology and therapy · 2025Article
- Comparative effectiveness, safety and persistence of ocrelizumab versus natalizumab in multiple sclerosis: A real-world, multi-center, propensity score-matched study.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025Article
- Early olfactory dysfunction in experimental autoimmune encephalomyelitis reflects transient brain barrier breach and initiation of neuroinflammation in the olfactory bulb.Frontiers in cellular neuroscience · 2025Article
- Twenty years of natalizumab in multiple sclerosis: lessons learned and future outlook.Therapeutic advances in neurological disorders · 2025Review
- The benefits of photobiomodulation in animal models of multiple sclerosis: a systematic review and meta-analysis.Frontiers in neurology · 2024Review
- Disease-Modifying Drugs for Multiple Sclerosis and Association With Survival.Neurology(R) neuroimmunology & neuroinflammation · 2022Article
- Serum contactin-1 as a biomarker of long-term disease progression in natalizumab-treated multiple sclerosis.Multiple sclerosis (Houndmills, Basingstoke, England) · 2022Article
- Observational
- Aggressive multiple sclerosis (2): Treatment.Multiple sclerosis (Houndmills, Basingstoke, England) · 2020Article
- JC polyomavirus expression and bell-shaped regulation of its SF2/ASF suppressor during the follow-up of multiple sclerosis patients treated with natalizumab.Journal of neurovirology · 2017Article
- Natalizumab-induced POU2AF1/Spi-B upregulation: A possible route for PML development.Neurology(R) neuroimmunology & neuroinflammation · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 6 institutions in 6 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In clinical practice natalizumab is typically used in patients who have experienced breakthrough disease during treatment with interferon beta (IFNβ) or glatiramer acetate. In these patients it is important to reduce disease activity as quickly as possible. In a phase II study, differences between natalizumab and placebo in MRI outcomes reflecting inflammatory activity were evident after the first infusion and maintained through a 6-month period, suggesting a rapid onset of natalizumab treatment effects. To explore how soon after natalizumab initiation clinical effects become apparent, annualized relapse rates per 3-month period and time to first relapse were analyzed in the phase III AFFIRM study (natalizumab vs. placebo) and in the multinational Tysabri(®) Observational Program (TOP). In AFFIRM, natalizumab reduced the annualized relapse rate within 3 months of treatment initiation compared with placebo in the overall population (0.30 vs. 0.71; p < 0.0001) and in patients with highly active disease (0.30 vs. 0.94; p = 0.0039). The low annualized relapse rate was maintained throughout the 2-year study period, and the risk of relapse in AFFIRM patients treated with natalizumab was reduced [hazard ratio against placebo 0.42 (95 % CI 0.34-0.52); p < 0.0001]. Rapid reductions in annualized relapse rate also occurred in TOP (baseline 1.99 vs. 0-3 months 0.26; p < 0.0001). Natalizumab resulted in rapid, sustained reductions in disease activity in both AFFIRM and in clinical practice. This decrease in disease activity occurred within the first 3 months of treatment even in patients with more active disease.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.