Evidence map›Paper›PMID 33534940›Full record

Trial reportAnnals of clinical and translational neurology2021

Dynamics of pseudo-atrophy in RRMS reveals predominant gray matter compartmentalization.

Nicola De Stefano, Antonio Giorgio, Giordano Gentile, Maria Laura Stromillo, Rosa Cortese, Claudio Gasperini, Andrea Visconti, Maria Pia Sormani, Marco Battaglini

Registry-linked trialOpen access · goldAbstract readClinical Trial, Phase IIIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Annals of clinical and translational neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00441103 (A Two-arm, Randomized, Double-blind, Control Group-compared, Multicenter, Phase IIIb Study With Monthly MRI and Biomarker Assessments to Evaluate the Efficacy, Safety, and Tolerability of Rebif® New Formulation), which is not on this map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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.

NCT00441103 phase3completednot on this map

A Two-arm, Randomized, Double-blind, Control Group-compared, Multicenter, Phase IIIb Study With Monthly MRI and Biomarker Assessments to Evaluate the Efficacy, Safety, and Tolerability of Rebif® New Formulation (IFN Beta-1a) in Subjects With Relapsing Remitting Multiple Sclerosis

TypeinterventionalSponsorMerck KGaA, Darmstadt, GermanyRan2006 to 2009Enrolled180ConditionsMultiple Sclerosis, Relapsing-RemittingArmsRebif® New Formulation (IFN-beta-1a, RNF), Placebo
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

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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

9 authors at 4 institutions in 1 country.

Nicola De StefanoDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.ORCID 0000-0003-4930-7639
Antonio GiorgioDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.ORCID 0000-0003-0272-4347
Giordano GentileDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Maria Laura StromilloDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Rosa CorteseDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Claudio GasperiniSan Camillo-Forlanini Hospital, Rome, Italy.ORCID 0000-0002-3959-4067
Andrea ViscontiMedical Affairs Department, Merck Serono, Rome, Italy.
Maria Pia SormaniBiostatistics Unit, Department of Health Sciences, University of Genoa, Genoa, Italy.ORCID 0000-0001-6892-104X
Marco BattagliniDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
University of Siena · ITCarlo Forlanini Hospital · ITMerck Serono (Italy) · ITUniversity of Genoa · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo assess the dynamics of "pseudo-atrophy," the accelerated brain volume loss observed after initiation of anti-inflammatory therapies, in patients with multiple sclerosis (MS).

methodsMonthly magnetic resonance imaging (MRI) data of patients from the IMPROVE clinical study (NCT00441103) comparing relapsing-remitting MS patients treated with interferon beta-1a (IFNβ-1a) for 40 weeks versus those receiving placebo (16 weeks) and then IFNβ-1a (24 weeks) were used to assess percentage of gray (PGMVC) and white matter (PWMVC) volume changes. Comparisons of PGMVC and PWMVC slopes were performed with a mixed effect linear model. In the IFNβ-1a-treated arm, a quadratic term was included in the model to evaluate the plateauing effect over 40 weeks.

resultsUp to week 16, PGMVC was -0.14% per month in the placebo and -0.27% per month in treated patients (P < 0.001). Over the same period, the decrease in PWMVC was -0.067% per month in the placebo and -0.116% per month in treated patients (P = 0.27). Similar changes were found in the group originally randomized to placebo when starting IFNβ-1a treatment (week 16-40, reliability analysis). In the originally treated group, over 40 weeks, the decrease in PGMVC showed a significant (P < 0.001) quadratic component, indicating a plateauing at week 20.

interpretationFindings reported here add new insights into the complex mechanisms of pseudo-atrophy and its relation to the compartmentalized inflammation occurring in the GM of MS patients. Ongoing and forthcoming clinical trials including MRI-derived GM volume loss as an outcome measure need to account for potentially significant GM volume changes as part of the initial treatment effect.

Indexed as

AdultAtrophyDouble-Blind MethodFemaleGray MatterHumansImmunologic FactorsInterferon beta-1aMagnetic Resonance ImagingMaleMiddle AgedMultiple Sclerosis, Relapsing-RemittingWhite MatterImmunologic FactorsInterferon beta-1a

Identifiers

PMID33534940
PMCPMC7951094
OpenAlexW3127267000

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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.