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Ipilimumab associated colitis: an IpiColitis case series at MedStar Georgetown University Hospital

Pawan Rastogi1, Mohamed Sultan1, Aline J Charabaty1

  • 1Pawan Rastogi, Department of Medicine, MedStar Georgetown University Hospital, Washington, DC 20007, United States.

World Journal of Gastroenterology
|April 21, 2015
PubMed

Although ipilimumab has been shown to improve survival in patients with metastatic melanoma and cause regression of metastatic renal cell carcinoma, the associated immune-related toxicities are of concern. The resultant T cell activation by this monoclonal antibody causes an increased immune response, which has been associated with many immune-regulated adverse effects. One of the most concerning effects is the development of colitis. Upwards to 8% of patients have been reported to develop colitis, with 5% being severe (Grades 3-4). While initial treatment of such adverse effects is generally comprised of supportive and symptomatic treatment, more severe cases warrant the use of high dose steroids. Furthermore, use of anti-TNF agents is usually reserved for those cases that prove to be refractory to steroids. We describe a systematic case review of seven patients who developed gastrointestinal symptoms following initiation of ipilimumab immunotherapy, and present the steps in their evaluation, treatment and outcomes at our institution.

Keywords:
ColitisImmune-regulated adverse effectsImmunologyInfliximabIpilimumab

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