Rituximab-induced serum sickness: A systematic review

Paras Karmacharya, Dilli Ram Poudel, Ranjan Pathak, Anthony A. Donato, Sushil Ghimire, Smith Giri, Madan Raj Aryal, Clifton O. Bingham

Research output: Contribution to journalReview articlepeer-review

47 Scopus citations


Objectives: To report a case of rituximab-induced serum sickness (RISS) and perform a systematic review and characterize RISS in autoimmune diseases and hematological malignancies. Methods: A comprehensive search of MEDLINE, EMBASE, ACR, and EULAR databases was performed for relevant articles of patients with RISS from inception to September 2014. Statistical analysis of demographic and clinical features was performed using Microsoft EXCEL 2007 and SPSS version 20.0. Results: In the 33 patients with RISS, the mean age of presentation was 39.1 ± 17.5 yr with a female preponderance (n = 23, 76.67%). The majority of cases were associated with an underlying rheumatologic condition (n = 17, 51.5%), most commonly Sjögren's syndrome (n = 8, 44.4%). The classic triad of serum sickness (fever, rash, and arthralgia) was reported in 16 (48.5%) cases. Time from drug exposure to symptom onset was significantly greater with the first doses of rituximab compared to the second dose (mean time 10.00 vs. 4.05. d, P = 0.002), and time to resolution was significantly greater for rheumatologic vs. hematological indications (mean time 2.50 vs. 1.00. d, P = 0.035). Corticosteroids were the most commonly used treatment (n = 21), with all cases reporting a complete resolution of symptoms in 2.15 ± 1.34 d. Conclusion: It is important to recognize RISS clinically, as it may mimic exacerbation of various rheumatologic conditions. Although RISS is typically self-limited, further infusions of rituximab should be avoided, as it may provoke more severe symptoms.

Original languageEnglish (US)
Pages (from-to)334-340
Number of pages7
JournalSeminars in Arthritis and Rheumatism
Issue number3
StatePublished - Dec 2015


  • Infusion reaction
  • Rheumatoid arthritis
  • Rituximab
  • Serum sickness

ASJC Scopus subject areas

  • Rheumatology
  • Anesthesiology and Pain Medicine


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