Anti-RA33 antibodies are present in a subset of patients with immune checkpoint inhibitor-induced inflammatory arthritis.
Laura C CappelliClifton O BinghamPatrick M FordeValsamo AnagnostouJulie BrahmerEvan J LipsonJennifer MammenMegan SchollenbergerAmi A ShahErika DarrahPublished in: RMD open (2022)
Anti-RA33 antibodies are present in a subset of patients with ICI-induced IA, absent in other ICI-treated patients and may be a biomarker for developing IA. Additional studies evaluating serial samples before and after ICI treatment will further establish the temporal relationship of these antibodies to IA development.
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