Evidence map›Paper›PMID 23733308›Full record

Trial reportJournal of neurovirology2013

A study of mefloquine treatment for progressive multifocal leukoencephalopathy: results and exploration of predictors of PML outcomes.

David B Clifford, Avindra Nath, Paola Cinque, Bruce J Brew, Robert Zivadinov, Leonid Gorelik, Zhenming Zhao, Petra Duda

Registry-linked trialOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of neurovirology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00746941 (A Randomized, Rater-Blinded Study to Explore the Effect of Mefloquine in Subjects With Progressive Multifocal Leukoencephalopathy), which is not on this map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
9.6field-weighted citation impact, top 1% of its field
1 · What the graph read from 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.

2 · The registry

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.

NCT00746941 phase1 / phase2terminatednot on this map

A Randomized, Rater-Blinded Study to Explore the Effect of Mefloquine in Subjects With Progressive Multifocal Leukoencephalopathy (PML)

TypeinterventionalSponsorBiogenRan2009 to 2010Enrolled37ConditionsProgressive Multifocal LeukoencephalopathyArmsmefloquine
3 · Its place in the literature

Who cites it

73 citing papers in PubMed, 1 synthesis or guideline pooled it, 162 citations in OpenAlex.

  1. Pooled it
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  6. JC Polyomavirus Infection: A Narrative Review.Infectious diseases and therapy · 2025
    Review
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13 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 7 institutions in 3 countries.

David B CliffordDepartment of Neurology, Washington University in St. Louis, Box 8111, 660 South Euclid Avenue, St. Louis, MO 63110, USA. cliffordd@neuro.wustl.edu
Avindra Nath
Paola Cinque
Bruce J Brew
Robert Zivadinov
Leonid Gorelik
Zhenming Zhao
Petra Duda
Biogen (United States) · USBuffalo Psychiatric Center · USNational Institutes of Health · USPharmaceutical Product Development (United States) · USSan Raffaele University of Rome · ITSt Vincent's Hospital Sydney · AUWashington University in St. Louis · US

Funding

NINDS Office of the Clinical DirectorZIDNS003101 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI NATH, AVINDRA · 2009 to 2025
$219.6M
Neuropathogenesis of Retroviral InfectionsZIANS003130 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI NATH, AVINDRA · 2011 to 2025
$73.7M
6 · The paper itself

Abstract

Immune reconstitution has improved outcomes for progressive multifocal leukoencephalopathy (PML), a potentially lethal brain disease caused by JC virus (JCV). However, an antiviral treatment to control JCV is needed when immune reconstitution is delayed or not possible. On the basis of in vitro efficacy, this study evaluated the effect of mefloquine on PML and factors that may predict PML outcomes. This 38-week, open-label, randomized, parallel-group, proof-of-concept study compared patients with PML who received standard of care (SOC) with those who received SOC plus mefloquine (250 mg for 3 days, then 250 mg weekly). Patients randomized to SOC could add mefloquine treatment at week 4. The primary endpoint was change from baseline to weeks 4 and 8 in JCV DNA copy number (load) in cerebrospinal fluid (CSF). Exploratory analyses evaluated factors that might correlate with clinical outcome. The majority of enrolled patients were HIV positive. Preplanned interim data analyses suggested that the study was unlikely to successfully demonstrate a significant difference between groups; therefore, the study was terminated prematurely. There was no significant difference between groups in CSF JCV DNA loads or clinical/MRI findings. Decrease in CSF JCV DNA load from baseline to week 4 was associated with a better clinical outcome at 16 weeks, as measured by Karnofsky scores. This study found no evidence of anti-JCV activity by mefloquine. An early decrease of CSF JCV DNA load appears to be associated with a better clinical outcome.

Indexed as

AdultAntimalarialsAntiviral AgentsBrainDNA, ViralFemaleHIV InfectionsHumansJC VirusLeukoencephalopathy, Progressive MultifocalMagnetic Resonance ImagingMaleMefloquineMiddle AgedSingle-Blind MethodTreatment OutcomeAntimalarialsAntiviral AgentsDNA, ViralMefloquine

Identifiers

PMID23733308
PMCPMC3758507
OpenAlexW2041786390

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

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.