Evidence map›Paper›PMID 42806422›Full record

ArticleBMC rheumatology2026

Longitudinal clinical outcomes after the escalation of subcutaneous tocilizumab from every 2 weeks to once weekly in rheumatoid arthritis with inadequate disease control: A 52-week real-world observational study.

Masanori Sudo, Sayuri Takamura, Asami Abe, Hajime Ishikawa, Daisuke Kobayashi, Kiyoshi Nakazono, Akira Murasawa, Suguru Yamamoto, Satoshi Ito

Abstract read
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Article in BMC rheumatology, 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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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Masanori SudoDepartment of Rheumatology, Niigata Rheumatic Center, Niigata, Shibata, 957-0054, Japan. masanori.s031@gmail.com.ORCID http://orcid.org/0000-0002-6767-6895
Sayuri TakamuraDepartment of Rheumatology, Niigata Rheumatic Center, Niigata, Shibata, 957-0054, Japan.
Asami AbeDepartment of Rheumatology, Niigata Rheumatic Center, Niigata, Shibata, 957-0054, Japan.
Hajime IshikawaDepartment of Rheumatology, Niigata Rheumatic Center, Niigata, Shibata, 957-0054, Japan.
Daisuke KobayashiDepartment of Rheumatology, Niigata Rheumatic Center, Niigata, Shibata, 957-0054, Japan.
Kiyoshi NakazonoDepartment of Rheumatology, Niigata Rheumatic Center, Niigata, Shibata, 957-0054, Japan.
Akira MurasawaDepartment of Rheumatology, Niigata Rheumatic Center, Niigata, Shibata, 957-0054, Japan.
Suguru YamamotoDivision of Clinical Nephrology and Rheumatology, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan.
Satoshi ItoDepartment of Rheumatology, Niigata Rheumatic Center, Niigata, Shibata, 957-0054, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo describe 52-week longitudinal clinical outcomes after escalation of subcutaneous tocilizumab (TCZ-SC) from every 2 weeks (Q2W) to once weekly (Q1W) in rheumatoid arthritis (RA) patients with inadequate clinical control during Q2W dosing, and contextualize findings using a TCZ-SC Q2W continuation cohort.

methodsThis single-center retrospective observational study included 58 patients with RA who escalated from TCZ-SC Q2W to Q1W. The primary outcome was the overall longitudinal change in the Clinical Disease Activity Index (CDAI) through week 52, assessed using a complete-case Friedman test. Linear mixed-effects models using all available observations were fitted as sensitivity analyses. Secondary analyses included the Disease Activity Score in 28 joints using the erythrocyte sedimentation rate (DAS28-ESR), matrix metalloproteinase-3 (MMP-3), laboratory safety and renal outcomes, re-adjudicated difficult-to-treat (D2T) RA status, follow-up disposition, individual-level concomitant treatment intensification, and a Q2W continuation contextual comparison.

resultsThe median CDAI decreased from 16.00 at Q1W escalation to 8.20 at week 52 (complete-case Friedman test, n = 42, P < 0.001). In mixed-effects sensitivity analyses, model-estimated week-52 changes were - 5.89 points for CDAI (95% CI, - 8.15 to - 3.63), - 1.29 points for DAS28-ESR (95% CI, - 1.63 to - 0.95), - 45.8% for MMP-3 (95% CI, - 54.9% to - 34.7%), and - 4.79 mL/min/1.73 m

conclusionsDisease activity decreased after Q1W escalation, with directionally consistent sensitivity analyses. However, the 12-week CDAI changes did not differ significantly between the Q1W escalation cohort and the Q2W residual-activity subgroup. These descriptive findings do not establish an incremental or causal benefit of Q1W escalation.

Indexed as

Biological disease-modifying antirheumatic drugsDisease activityReal-world evidenceRenal functionRheumatoid arthritisSubcutaneous administrationTocilizumab

Identifiers

PMID42806422
PMCPMC13617787

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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.