From chat to act: large language model agents and agentic AI as the next frontier of AI in rheumatology
Open accessAbstract
Objectives: Large language models (LLMs) have begun to influence rheumatology, yet their static knowledge and hallucination risks limit their potential. Retrieval-augmented generation mitigates some limitations, but complex rheumatologic care demands real-time data access, multistep reasoning, and tool usage that exceed standard LLM capabilities. The objective of this study is to explore how agentic artificial intelligence (AI) can address the limitations of current LLM applications in rheumatology. Methods: We conducted a viewpoint analysis of the capabilities of agentic AI systems, focusing on their technical foundations, current use cases in healthcare, and relevance to the specific demands of rheumatologic care. Results: Agentic AI extends LLMs with planning, memory, and the ability to interact with external tools, enabling execution of complex tasks. These capabilities offer promising applications in rheumatology, including personalized treatment planning, automated literature synthesis, and clinical decision support. Conclusions: Agentic AI systems represent a necessary evolution to meet the complexity of rheumatologic care. Regulatory, ethical and technical challenges must be overcome before agentic systems can be safely deployed in routine rheumatologic care.
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Multimodal multi-agent models demonstrated superior diagnostic performance by integrating imaging and text more effectively than classical CNN-based or text-only systems.
“while multimodal multiagent models demonstrated superior diagnostic performance by integrating imaging and text more effectively than classical CNN-based or text-only systems [23][24].”
From Multi-Agent Retrieval Augmented Generation for Clinical Decision Support: A Systematic Review and Integrative Conceptual Framework (2026) · cites this paper as [23]
The Introduction’s “Agents and agentic AI” section reports that combining several LLM outputs can improve diagnostic accuracy, and Table 2 describes a potential vision-language application integrating images with clinical metadata. Neither passage demonstrates that multimodal multi-agent models outperform CNN-based or text-only diagnostic systems; Table 2 presents an expected application, not a comparative result. No page numbers are provided in our copy. (LLM, conf=0.85)
Experimental — accuracy not yet measuredMultimodal agent specialisation makes clear how radiological patterns and textual evidence relate to the overall prediction.
“This made it clear how radiological patterns and textual evidence worked in relation to the overall prediction [23].”
From Multi-Agent Retrieval Augmented Generation for Clinical Decision Support: A Systematic Review and Integrative Conceptual Framework (2026) · cites this paper as [23]
Table 2 (AI agents in rheumatology; page unavailable) describes a vision-language model that integrates images with clinical metadata to produce a diagnostic score and probability. The Responsible AI agents section discusses explainability in general, but neither passage says that multimodal agent specialisation makes clear how radiological patterns and textual evidence each relate to an overall prediction. (LLM, conf=0.78)
Experimental — accuracy not yet measuredMultimodal systems add transparency by demonstrating how image features are connected to text retrieval to draw a conclusion.
“Multimodal [23][24] also added transparency by demonstrating how the image features were connected to text retrieval in order to draw a conclusion.”
From Multi-Agent Retrieval Augmented Generation for Clinical Decision Support: A Systematic Review and Integrative Conceptual Framework (2026) · cites this paper as [23]
The Introduction discusses multimodal rheumatology data, while “Responsible AI agents” says explainability can make an agent’s decisions transparent. Neither passage describes a multimodal system demonstrating how image features connect to text retrieval to reach a conclusion. Searches for image features, text retrieval, and transparency found no passage addressing that mechanism. (LLM, conf=0.74)
Experimental — accuracy not yet measured
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Cites
Huang, L., Yu, W., Ma, W., Zhong, W., Feng, Z., Wang, H., Chen, Q., Peng, W., Feng, X., Qin, B., et al. (2025) · ACM Transactions on Information Systems · doi:10.1145/3703155 · Cited by 2,142 · cited 2× · see citing works
“For clarity, a de fi nition box summarising key terms is shown in Table 1 [4,6,17,18].”
Retrieval-Augmented Generation for Large Language Models: A Survey
Gao, Y., Xiong, Y., Gao, X., Jia, K., Pan, J., Bi, Y., Dai, Y., Sun, J., Wang, M., & Wang, H. (2023) · arXiv · doi:10.48550/arxiv.2312.10997 · Cited by 876 · cited 1× · see citing works
“Retrieval-augmented generation (RAG) architectures offer an ef fi - cient and reliable method for mitigating hallucinations and out-dated knowledge [6,13,14].”
Empowering biomedical discovery with AI agents
Gao, S., Fang, A., Huang, Y., Giunchiglia, V., Noori, A., Schwarz, J. R., Ektefaie, Y., Kondic, J., & Zitnik, M. (2024) · Cell · doi:10.1016/j.cell.2024.09.022 · Cited by 315 · see citing works
Next-generation agentic AI for transforming healthcare
Karunanayake, N. (2025) · Informatics and Health · doi:10.1016/j.infoh.2025.03.001 · Cited by 165 · see citing works
The Ethics of Advanced AI Assistants
Gabriel, I., Manzini, A., Keeling, G., Hendricks, L. A., Rieser, V., Iqbal, H., Tomašev, N., Ktena, I., Kenton, Z., Rodriguez, M., et al. (2024) · arXiv · doi:10.48550/arxiv.2404.16244 · Cited by 57 · see citing works
Kolt, N. (2024) · doi:10.2139/ssrn.4772956 · Cited by 47 · see citing works
Why Do Multi-Agent LLM Systems Fail?
Cemri, M., Pan, M. Z., Yang, S., Agrawal, L. A., Chopra, B., Tiwari, R., Keutzer, K., Parameswaran, A., Klein, D., Ramchandran, K., et al. (2025) · arXiv · doi:10.48550/arxiv.2503.13657 · Cited by 15 · cited 1× · see citing works
“Adding to these complexities in agent development, recent work demonstrates that MAS do not yet deliver the substantial performance improvements often promised over single agents [56].”
Agentic LLM Workflows for Generating Patient-Friendly Medical Reports
Sudarshan, M., Shih, S., Yee, E., Yang, A., Zou, J., Chen, C., Zhou, Q., Chen, L., Singhal, C., & Shih, G. (2024) · arXiv · doi:10.48550/arxiv.2408.01112 · Cited by 8 · cited 1× · see citing works
“Comparative testing demonstrated signi fi cantly improved accuracy and reduced need for manual revision compared with baseline LLM outputs, potentially enhancing the ef fi - ciency and reliability of patient communication [33].”
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Cited by
Sorted by citations
Agentic AI and large language models in radiology: opportunities and hallucination challenges
Salehi, S., Singh, Y., Horst, K. K., Hathaway, Q. A., & Erickson, B. J. (2025) · Bioengineering · doi:10.3390/bioengineering12121303 · Cited by 32 · see citing works
Mugambiwa, T., & Ndlovu, B. (2026) · Journal of Applied Informatics and Computing · doi:10.30871/jaic.v10i1.11900 · Cited by 4 · see citing works
“Verification agents were vital in [22][12] clearing unsupported outputs and preventing hallucinations the single greatest barrier to building clinician confidence in AI.”
Influential
- Authors
- Madrid-García, A., Benavent, D., & Merino-Barbancho, B.
- Affiliations
- Bellvitge University Hospital (ES)
- Corresponding author
- Madrid-García, Alfredo
- Venue
- EULAR Rheumatology Open
- Publisher
- Elsevier BV
- Published
- 2025-10
- Volume
- 1
- Issue
- 3
- Pages
- 147-156
- ISSN
- 3050-7081 (ISSN-L)
- PMC
- PMC13292459
- OpenAlex
- W4412723643
- Cited by
- 9
- References
- 8
- Citations by year
- 2026: 7 · 2025: 2
- FWCI
- 0.53
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- EULAR Rheumatology Open (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Health Informatics › Artificial Intelligence in Healthcare and Education
- Physical Sciences › Computer Science › Artificial Intelligence › Artificial Intelligence Applications
- Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning in Healthcare
- Keywords
- agentic AI, large language models, rheumatology, retrieval-augmented generation, hallucinations, tool use, clinical decision support, personalized treatment planning, artificial intelligence in healthcare, ethical and regulatory challenges
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