Patients with this genotype have increased ACR20 response when using infliximab to treat rheumatoid arthritis.
References
Canete JD, Suarez B, Hernandez MV, Sanmarti R, Rego I, Celis R, Moll C, Pinto JA, Blanco FJ, Lozano F: Influence of variants of Fc gamma receptors IIA and IIIA on the American College of Rheumatology and European League Against Rheumatism responses to anti-tumour necrosis factor alpha therapy in rheumatoid arthritis. Ann Rheum Dis. 2009 Oct;68(10):1547-52. doi: 10.1136/ard.2008.096982. Epub 2008 Oct 17. [Article]