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Updated: Apr 25, 2026

An Adoptive Transfer Model of Rheumatoid Arthritis in Mice
Published on: June 6, 2025
Pharmacogenetics in rheumatoid arthritis
Deepali Sen1, Jisna R Paul, Prabha Ranganathan
1Division of Rheumatology, Department of Medicine, Washington University School of Medicine, 660 S. Euclid Avenue, Campus Box 8045, St. Louis, MO, 63110, USA.
Pharmacogenetics, the study of how genes affect drug response, shows promise for rheumatoid arthritis (RA) treatment. Understanding genetic variations could personalize disease-modifying antirheumatic drug (DMARD) therapy for better RA outcomes.
Area of Science:
- Rheumatology
- Pharmacogenetics
- Immunology
Background:
- Rheumatoid arthritis (RA) is a systemic inflammatory condition causing significant joint damage, morbidity, and mortality.
- Disease-modifying antirheumatic drugs (DMARDs) are the primary treatment for RA, managing symptoms and slowing disease progression.
- Biologic agents, a newer class of DMARDs, offer treatment options but exhibit variable patient responses in efficacy and toxicity.
Purpose of the Study:
- To review the current literature on the pharmacogenetics of traditional and biologic DMARDs in rheumatoid arthritis.
- To explore the potential of pharmacogenetics in predicting individual patient responses to RA therapies.
- To highlight how pharmacogenetics may enable personalized drug therapy for RA patients in the future.
Main Methods:
- Literature review of published studies on pharmacogenetics of DMARDs in rheumatoid arthritis.
- Analysis of genetic factors influencing patient response to traditional and biologic DMARDs.
- Synthesis of current knowledge regarding pharmacogenetic predictors of efficacy and toxicity.
Main Results:
- Significant variability exists in patient responses to current DMARDs, including biologic agents.
- Existing literature on the pharmacogenetics of RA treatments is highlighted.
- Pharmacogenetic approaches are emerging as potential tools for predicting drug response.
Conclusions:
- Pharmacogenetics holds promise for individualizing drug therapy in rheumatoid arthritis.
- Further research is needed to establish reliable pharmacogenetic markers for DMARD selection.
- Personalized medicine approaches using pharmacogenetics could optimize RA treatment outcomes.
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