Refractory Cutaneous IgA Vasculitis Treated with Omega-3 Fatty Acids

Area of Science:

• Immunology
• Nephrology
• Dermatology

Background:

• Cutaneous IgA vasculitis (IgAV) is an autoimmune condition often associated with IgA nephropathy (IgAN).
• Omega-3 fatty acids (O3FA) have demonstrated therapeutic effects in IgAN but their role in IgAV remains less explored.

Observation:

• A 47-year-old female with a 24-year history of IgAV and IgAN experienced persistent disease flares.
• Conventional treatments including prednisone and various immunosuppressants failed to achieve sustained disease control.
• Introduction of O3FA (eicosapentaenoic acid and docosahexaenoic acid) led to successful prednisone withdrawal and disease remission.

Findings:

• High-dose O3FA therapy enabled the cessation of prednisone in a patient with refractory IgAV.
• Disease flares recurred upon O3FA dose reduction, highlighting the importance of consistent O3FA intake for disease management.

Implications:

• Omega-3 fatty acids may represent a novel therapeutic option for managing cutaneous IgA vasculitis.
• Further research is warranted to confirm the efficacy and optimal dosing of O3FA in IgAV patients.