Evidence map›Paper›PMID 41825926›Full record

Observational studyRMD open2026

Autoantibody biomarkers and first-line therapy response in RA: findings from the CAP48 cohort.

Sukayna Fadlallah, Judith Fraussen, Pieter Ruytinx, Tatiana Sokolova, Patrick Verschueren, Patrick Durez, Veerle Somers

Abstract readObservational Study
In one paragraph

Observational study in RMD open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Sukayna FadlallahDepartment of Immunology and Infection, Biomedical Research Institute, Hasselt University, Hasselt, Belgium.
Judith FraussenDepartment of Immunology and Infection, Biomedical Research Institute, Hasselt University, Hasselt, Belgium.
Pieter RuytinxDepartment of Immunology and Infection, Biomedical Research Institute, Hasselt University, Hasselt, Belgium.
Tatiana SokolovaCliniques Universitaires Saint-Luc - Université catholique de Louvain (UCLouvain), Institut de Recherche Expérimentale et Clinique (IREC), Rheumatology, Brussels, Belgium.
Patrick VerschuerenDivision of Rheumatology, University Hospitals Leuven, Leuven, Belgium.ORCID 0000-0002-0340-3580
Patrick Durez *Cliniques Universitaires Saint-Luc - Université catholique de Louvain (UCLouvain), Institut de Recherche Expérimentale et Clinique (IREC), Rheumatology, Brussels, Belgium.
Veerle Somers *Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Hasselt, Belgium veerle.somers@uhasselt.be.ORCID 0000-0002-4950-8724

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveA panel of antibodies against three antigens, University Hasselt (UH)-rheumatoid arthritis (RA).305, 318 and 329, has been associated with lack of response to first-line therapy in the Care in early RA trial. This study aimed to determine the association of this antibody panel with first-line therapy response in an independent cohort.

methodsAnti-UH-RA.305/318/329 antibody reactivity was determined using ELISA in 165 baseline samples of the CAP48 cohort, an observational cohort of patients with early and naïve RA treated mainly with methotrexate monotherapy. Multivariable analyses assessed associations between baseline antibody reactivity and failure to reach remission or low disease activity (LDA) at 3, 6, 9 and 24 months according to the Disease Activity Score 28-joint C-reactive protein (DAS28CRP) and clinical/simplified disease activity index (SDAI).

resultsIn the total RA cohort, baseline anti-UH-RA.305/318/329 antibody reactivity was significantly higher in patients not achieving LDA versus those achieving LDA at 9 months (31.6% vs 11.3% for DAS28CRP/SDAI; OR 3.64, 95% CI 1.34 to 9.91, p=0.045). In patients with seronegative RA, a significant association between antibody reactivity and not achieving LDA based on DAS28CRP (42.1% vs 12.5%; OR 5.09, 95% CI 1.2 to 27.0, p=0.05) was already observed at 6 months. After 24 months, baseline antibody positivity remained significantly associated with not achieving LDA based on SDAI (OR 29.9, 95% CI 2.5 to 109.2, p=0.01) in patients with seronegative status. DISCUSSION: In the CAP48 cohort, the anti-UH-RA antibody panel was associated with a lack of response to first-line therapy for certain clinical measures, observed at 9 months in the total RA cohort and at 6 and 24 months in patients with seronegative status. The antibody panel should be further validated for its use in early personalised RA treatment.

Indexed as

Antirheumatic AgentsArthritis, RheumatoidAutoantibodiesBiomarkersAdultAgedCohort StudiesEnzyme-Linked Immunosorbent AssayFemaleHumansMaleMethotrexateMiddle AgedSeverity of Illness IndexTreatment OutcomeAntirheumatic AgentsAutoantibodiesBiomarkersMethotrexateArthritis, RheumatoidBiomarkersTherapeutics

Identifiers

PMID41825926
PMCPMC12993363

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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.