Year in Review

Fibromyalgia remains a challenge for researchers and clinicians. Three studies published in 2025 shed light on mechanisms and management by implicating gut microbiota in symptom perpetuation, demonstrating the potential of home-based neuromodulation, and examining the uncertain role of low-dose naltrexone.

Advances in cellular and spatial profiling technologies have rapidly expanded the understanding of fibroblast heterogeneity within the target tissues of disease. In 2025, there has been a shift towards a consensus definition of shared cross-tissue fibroblast states and a greater understanding of their molecular drivers and disease-relevant effector functions.

New research published in 2025 sheds light on the pre-clinical period that precedes the onset of classifiable rheumatoid arthritis, from risk factors to immunological events and opportunities to prevent the transition to clinical disease.

In 2025, a new wave of ‘off-the-shelf’ B cell-depleting modalities for the treatment of autoimmune diseases emerged, encompassing allogeneic cellular therapies, in vivo chimeric antigen receptor engineering, and bispecific antibodies.

Advances in artificial intelligence (AI) are transforming patient stratification in rheumatology. In 2025, three landmark studies demonstrated how multimodal AI approaches spanning clinical, molecular and longitudinal data can uncover distinct disease subtypes and predict therapeutic response, advancing the field towards precision rheumatology.

Many of the current therapies for arthritis lack a targeted approach, limiting clinical benefits. Nanoparticle-based delivery systems have enabled more precise and efficient delivery of therapeutic agents, particularly nucleic acids. Studies in 2025 emphasize the promise of these strategies for the treatment of various forms of arthritis.

In 2024, studies using more advanced methods to calculate the minimal important change have described how different methods and timings of estimating minimal important changes can affect the estimates.

Emerging research in intervertebral disc degeneration in 2024 highlights microbial, immune and inflammatory mechanisms that drive chronic low back pain. These insights pave the way for potential transformative therapies that address the root causes of intervertebral disc degeneration and could improve patient outcomes.

Here, we highlight three publications in 2024 that have advanced the field of molecular and immunological profiling, for the diagnosis, prognosis and treatment of patients with systemic autoimmune rheumatic diseases.

Studies published in 2024 suggest that although the repurposing of established rheumatology drugs seems to deliver incremental benefits for pain management, greater benefits could be gained in the future by targeting newly discovered pain mechanisms.

During the past year, four studies have reported ten mutations in UNC93B1, which encodes the Toll-like receptor (TLR) chaperone protein UNC93B1. All variants increased TLR7 and TLR8 signalling and caused systemic lupus erythematosus in young individuals, and highlight the therapeutic potential of targeting TLR7 and TLR8 in this disease.

Studies published in 2023 emphasize the long-term efficacy and safety of novel therapeutics for both radiographic and non-radiographic axial spondyloarthritis (axSpA) and provide a consensus definition of ‘early axSpA’ for use in research studies.

Advances in gene, protein and cellular engineering provide unprecedented opportunities to redirect immune cells to treat autoimmunity. In 2023, novel cellular and precision immunotherapies showed remarkable promise in the treatment of rheumatic diseases.

Research published in 2023 has demonstrated the efficacy of sarilumab for IL-6 blockade in polymyalgia rheumatica and of secukinumab for IL-17 blockade in giant cell arteritis (GCA). Furthermore, preliminary results with human monocyte-derived suppressive cells suggest the potential of cellular therapeutics for the treatment of GCA.

In 2023, large language models demonstrated potential for use in rheumatology to accurately suggest diagnoses and provide empathetic patient education. However, the propensity of this technology to generate misleading information continues to pose risks. Balancing innovation with physician guidance is essential.

For individuals with gout, the treatment options beyond conventional urate-lowering therapies are expanding. Notable advancements in 2023 include developments in uricase therapy, new xanthine oxidase inhibitors, and a class of medications that offer dual benefits for the control of type 2 diabetes mellitus and gout.

Studies in 2023 have described eight new monogenic autoinflammatory diseases and their accompanying disease-causing mutations, uncovering clinical phenotypes, pathogenic mechanisms and therapeutic targets. Researchers have identified autoinflammatory pathways linked to mitochondrial dysfunction or overactivation of SRC family kinases.

Although elegant work has detailed the clinical presentation, immune response and disease outcome of multisystem inflammatory syndrome in children, many questions remain. Studies in 2022 have explored the nature of the vascular injury, the role of the SARS-CoV-2 spike protein and the association with the current variants of the virus.

Successful, long-term treatment of articular cartilage injuries is important for the prevention of osteoarthritis but remains a major challenge. Three studies in 2022 highlight new approaches to improving articular cartilage regeneration.

Janus kinase inhibitors continue to show promise in a diverse range of indications, but administration of these drugs needs careful consideration of the benefits and risks. Among a plethora of publications in 2022, notable studies explored an important new indication and provided insights into safety concerns.