Biologic modifiers used along with methotrexate for RA are best described as?

• A. TNF Alpha inhibitors
• B. IL-6 inhibitors
• C. JAK inhibitors
• D. B cell modulators

Answer: (A)

Biologic modifiers used with methotrexate in rheumatoid arthritis are best described as inhibitors of TNF-α, a central cytokine driving joint inflammation. These agents—such as infliximab, etanercept, adalimumab, certolizumab, and golimumab—are monoclonal antibodies or receptor fusion proteins that neutralize TNF-α, dampening the inflammatory cascade and helping prevent joint damage. They are added to methotrexate to boost efficacy and often improve outcomes more than MTX alone; MTX also helps reduce the immune response against the biologic, supporting better tolerance and longer-lasting effect. While other biologics target IL-6, B cells, or use JAK inhibition, the classic and most widely used pairing with MTX in RA is TNF-α inhibition.