ArticleMultiple sclerosis (Houndmills, Basingstoke, England)2022
Analysis of frequency and severity of relapses in multiple sclerosis patients treated with cladribine tablets or placebo: The CLARITY and CLARITY Extension studies.
Article in Multiple sclerosis (Houndmills, Basingstoke, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 23 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.
A Phase III, Randomized, Double-blind, Three-arm, Placebo-controlled, Multi-center Study to Evaluate the Safety and Efficacy of Oral Cladribine in Subjects With Relapsing-remitting Multiple Sclerosis (RRMS)
A Phase IIIb, Double-Blind, Placebo-Controlled, Multicenter, Parallel Group, Extension Trial to Evaluate the Safety and Tolerability of Oral Cladribine in Subjects With Relapsing-Remitting Multiple Sclerosis Who Have Completed Trial 25643 (CLARITY)
Who cites it
23 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Natalizumab and Tyruko (natalizumab biosimilar) for treating highly active relapsing-remitting multiple sclerosis after at least one disease-modifying therapy: a systematic review and economic model.Health technology assessment (Winchester, England) · 2026Pooled it
- Immunomodulators and immunosuppressants for relapsing-remitting multiple sclerosis: a network meta-analysis.The Cochrane database of systematic reviews · 2024Pooled it
- Dynamics of Spinal Fluid Immune Cell Alterations Following Cladribine Tablet Treatment in Multiple Sclerosis.Neurology(R) neuroimmunology & neuroinflammation · 2026Trial
- French expert opinion on the long-term management of relapsing multiple sclerosis with cladribine tablets beyond year 4.Journal of neurology · 2026Review
- Multi-omics integration provides biological insight and prioritizes potential drug targets in multiple sclerosis progression.Journal of neuroinflammation · 2026Article
- International Expert Opinion on Optimal Switching to Cladribine Tablets from Other High-Efficacy Disease-Modifying Therapies for Relapsing-Remitting Multiple Sclerosis: Opportunities and Challenges.Neurology and therapy · 2026Review
- Switching from anti-CD20 therapies to cladribine and vice versa - Analysis of a German relapsing multiple sclerosis cohort.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026Article
- Insights into adherence to cladribine tablets in the real world in multiple countries: results from patient support programs.Therapeutic advances in neurological disorders · 2026Article
- Article
- Administration and Monitoring Burden of High-Efficacy Disease-Modifying Therapies for Multiple Sclerosis: A Delphi Consensus of Clinical Experts from Saudi Arabia.Neurology and therapy · 2025Article
- Identifying Cladribine prescription pattern in MS: an Italian multicentre study.Therapeutic advances in neurological disorders · 2025Article
- Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS Study.Therapeutic advances in neurological disorders · 2025Article
- Cladribine tablets in the new multiple sclerosis era.Therapeutic advances in neurological disorders · 2025Review
- Practical Recommendations from the Gulf Region on the Therapeutic Use of Cladribine Tablets for the Management of Relapsing Multiple Sclerosis: Impact of the Latest Real-World Evidence on Clinical Practice.Neurology and therapy · 2024Review
- Association of Clinical Relapses With Disease Outcomes in Multiple Sclerosis Patients Older Than 50 Years.Neurology · 2024Article
- Holistic, Long-Term Management of People with Relapsing Multiple Sclerosis with Cladribine Tablets: Expert Opinion from France.Neurology and therapy · 2024Review
- Transcriptome alterations in peripheral blood B cells of patients with multiple sclerosis receiving immune reconstitution therapy.Journal of neuroinflammation · 2023Article
- Risk of COVID-19 in people with multiple sclerosis who are seronegative following vaccination.Multiple sclerosis (Houndmills, Basingstoke, England) · 2023Article
- Effectiveness and safety profile of cladribine in an Italian real-life cohort of relapsing-remitting multiple sclerosis patients: a monocentric longitudinal observational study.Journal of neurology · 2023Observational
- Cladribine treatment specifically affects peripheral blood memory B cell clones and clonal expansion in multiple sclerosis patients.Frontiers in immunology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn the CLARITY (CLAdRIbine Tablets treating multiple sclerosis orallY) study of patients with relapsing-remitting multiple sclerosis, treatment with cladribine tablets 3.5 mg/kg (CladT) significantly reduced the annualised relapse rate (ARR) versus placebo; this effect was sustained in CLARITY Extension, without further treatment.
objectiveTo assess the frequency and severity of relapses in patients treated with CladT versus placebo in CLARITY over 2 years and evaluate the durability of effect in patients who received no further treatment for 2 years in CLARITY Extension.
methodsIn this post hoc analysis, ARRs were calculated for qualifying and all relapses, and qualifying and all severe relapses (i.e. requiring steroid treatment or leading to hospitalisation) in patients treated with CladT (
resultsAt Month 6, Year 1 and Year 2, patients receiving CladT had a significantly lower risk of qualifying or all relapses (all
conclusionThe results show durable efficacy of cladribine tablets 3.5 mg/kg for reducing frequency and severity of relapses in patients with relapsing-remitting multiple sclerosis.CLARITY: NCT00213135; CLARITY Extension: NCT00641537.
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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.