Targeting rheumatoid arthritis: a molecular perspective on biologic therapies and clinical progress

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

To surpass challenges with traditional approaches to treat Rheumatoid arthritis (RA), an improved understanding of molecular-level pathogenesis brought forth targeted therapy with biologics as a great promise in halting the progression of RA. Novel biologics are being designed with the help of synthetic fusion proteins, monoclonal antibodies, and protein fragments, with or without drugs, to target various signaling pathways, including TNF-α, IL-6, JAK, Th-17, IL-family, GM-CSF, B-cell, and T-cell signaling. The journey of biologics in RA management began in 1998 with etanercept (Enbrel ® ). Since then, regulatory bodies have endorsed various biologics and many more are in different clinical stages. This review aims to explore RA by examining current clinical studies with focus on emerging development on molecular-level pathogenesis, prevalent conventional treatment options and their limitations, as well as recent advancements in biologically engineered therapeutics. It also includes a few relevant case studies to support these findings. Despite the progress, challenges remain, such as high costs and the need for safer, more effective delivery methods. The document also touches on the historical perspective of RA, its pathophysiology, and the role of synovial fluid pharmacokinetics in treatment effectiveness. The importance of early diagnosis and well-controlled treatment strate

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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