Difficult-to-treat rheumatoid arthritis: Current concept and unsolved problems

Area of Science:

• Rheumatology
• Immunology
• Pharmacology

Background:

• Rheumatoid arthritis (RA) treatment has advanced, with remission achievable.
• A significant subset of RA patients exhibit resistance to multiple disease-modifying antirheumatic drugs (DMARDs).
• Difficult-to-treat RA (D2T RA) is defined as RA uncontrolled despite multiple biologic or targeted synthetic DMARDs with different mechanisms of action.

Purpose of the Study:

• To introduce the current concept and challenges of D2T RA.
• To explore factors contributing to D2T RA, including patient-specific and demographic variables.
• To discuss management strategies and preventative clinical approaches for D2T RA.

Main Methods:

• Literature review of current concepts and publications on D2T RA.
• Analysis of factors contributing to DMARD inefficacy in RA.
• Discussion of therapeutic strategies and clinical approaches for D2T RA.

Main Results:

• D2T RA is characterized by uncontrolled disease activity, reduced quality of life, and increased healthcare costs.
• The mechanisms of DMARD inefficacy and factors defining D2T RA are not fully understood.
• Contributing factors to D2T RA may vary by patient, sex, country, and race.

Conclusions:

• D2T RA represents a significant challenge in rheumatology, requiring further research into its multifactorial nature.
• Effective management strategies and preventative measures are needed to improve outcomes for D2T RA patients.
• Understanding the heterogeneity of D2T RA is key to developing personalized treatment approaches.