ReviewFrontiers in medicine2022
Difficult-to-treat rheumatoid arthritis: Current concept and unsolved problems.
Review in Frontiers in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.
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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.
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.
Who cites it
39 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.
- Efficacy and safety of current therapies for difficult-to-treat rheumatoid arthritis: a systematic review and network meta-analysis.Journal of translational medicine · 2024Pooled it
- Disease activity and treatment response in early rheumatoid arthritis: an exploratory metabolomic profiling in the NORD-STAR cohort.Arthritis research & therapy · 2025Trial
- Clinical and healthcare burden of difficult-to-treat rheumatoid arthritis in Japan: a retrospective cohort study.BMJ open · 2026Observational
- Fibroblast-like Synoviocytes as Therapeutic Targets in Rheumatoid Arthritis: Current Evidence on DMARD-Mediated Modulation.Biomedicines · 2026Review
- Preclinical Rheumatoid Arthritis: Pathogenesis, Risk Stratification, and Therapeutic Interception.Journal of clinical medicine · 2026Review
- Factors Associated with Difficult-to-Treat Rheumatoid Arthritis (D2T-RA): Real-World Evidence from a Single-Center Cross-Sectional Study.Journal of personalized medicine · 2026Article
- Hydrogel microspheres loaded with sinomenine and Drynaria rhizome enhance the treatment of rheumatoid arthritis via immune regulation and promoting bone repair.Journal of nanobiotechnology · 2026Article
- Predicting rapid radiographic progression in difficult-to-treat rheumatoid arthritis: insights from long-term follow-up.Rheumatology (Oxford, England) · 2026Article
- Nanotechnology-driven delivery of dexamethasone for arthritis: The role of liposomes.EXCLI journal · 2026Review
- From Systemic Autoimmunity to the Local Immune Niche of the Synovium: New Insights into the Development of Rheumatoid Arthritis.Journal of inflammation research · 2026Review
- Difficult-to-Treat Rheumatoid Arthritis in Saudi Arabia: Clinical Characteristics and Associated Factors in a Multicentre Study.Open access rheumatology : research and reviews · 2026Article
- Interstitial lung disease constitutes a significant treatment burden in patients with rheumatoid arthritis.Frontiers in medicine · 2026Article
- Development and External Validation of a Multivariable Predictive Model for Progression to Difficult-to-Treat Rheumatoid Arthritis in Biologic-Experienced Patients.Arthritis care & research · 2026Article
- Screening of potential oxidative stress-related biomarkers and therapeutic drugs in rheumatoid arthritis based on integrative bioinformatics, machine learning, and molecular dynamics simulations.Frontiers in molecular biosciences · 2026Article
- Targeted nanoliposomes for precision rheumatoid arthritis therapy: a review on mechanisms andDrug delivery · 2025Review
- Surface-engineered hyaluronic acid-coated lyotropic liquid crystalline nanoparticles for CD44-targeting of 3-Acetyl-11-keto-β-boswellic acid in rheumatoid arthritis treatment.Journal of nanobiotechnology · 2025Article
- Strengths and limitations of the EULAR definition for difficult-to-treat rheumatoid arthritis.RMD open · 2025Review
- Joint Tissues: Convergence and Divergence of the Pathogenetic Mechanisms of Rheumatoid Arthritis and Osteoarthritis.International journal of molecular sciences · 2025Review
- Advanced Immunomodulation in Rheumatoid Arthritis: Immune Checkpoints, microRNAs, and Cell-Based Therapies.Biomedicines · 2025Review
- RNAcare: integrating clinical data with transcriptomic evidence using rheumatoid arthritis as a case study.BMC medical genomics · 2025Article
Corrections and comments
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Authors and funding
7 authors at 1 institution.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Over the past several decades, the treatment of rheumatoid arthritis (RA) has advanced significantly, and clinical, structural, and functional remission are achievable therapeutic goals. However, a substantial number of patients show resistance to multiple drugs. In particular, patients whose disease activity cannot be controlled despite the use of two or more biological disease-modifying antirheumatic drugs (DMARDs) or targeted synthetic DMARDs (tsDMARDs) with different mechanisms of action (MOA) have recently been referred to as having difficult-to-treat RA (D2T RA). D2T RA is a heterogeneous and multifactorial disease state, and the major problems are uncontrolled disease activity and decreased quality of life, as well as the economic burden due to frequent healthcare utilization and multiple admissions. Since the concept of D2T RA is relatively new and publication regarding D2T RA is limited, the mechanism underlying DMARD inefficacy and which factors form a "difficult-to-treat" state in such patients are not yet fully understood. It is also possible that factors contributing to D2T RA may differ by patient, sex, country, and race. The present Mini Review introduces the current concept and unsolved problems of D2T RA, including the definition, prevalence, and factors contributing to D2T RA. We then discuss the management and therapeutic strategies for D2T RA. Finally, we explore a clinical approach to prevent patients from developing D2T RA.
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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.