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Radiographic Profiling of Immune-Related Adverse Events in Advanced Melanoma Patients Treated with Ipilimumab

Open access
Tirumani, Sree Harsha, Ramaiya, Nikhil H., Keraliya, Abhishek, Bailey, Nancy D., Ott, Patrick A., Hodi, F. Stephen, Nishino, Mizuki·2015·Cancer Immunology Research

Abstract

Ipilimumab is a promising novel immunotherapy agent and is associated with a variety of immune-related adverse events (irAE). The purpose of this study was to investigate the manifestations of irAEs on body imaging in patients with advanced melanoma treated with ipilimumab. One-hundred forty-seven patients with advanced melanoma (59 women, 88 men; median age, 64.5 years) treated with ipilimumab were studied. All patients had the baseline and at least one follow-up chest/abdomen/pelvis CT or PET/CT during therapy, which were reviewed by a consensus of two radiologists blinded to the clinical data. Findings indicative of individual types of irAEs were assessed, including thyroiditis, sarcoid-like lymphadenopathy, pneumonitis, hepatitis, pancreatitis, and colitis. Among the 147 patients, 46 (31%) had radiologically identified irAEs. The time interval from the initiation of therapy to the development of irAEs was less than 3 months in 76% (35 of 46) of the patients (range, 0.2–9.1 months). Clinical characteristics did not differ between patients with and without irAEs (P > 0.18). Among the individual types of irAEs, colitis was most common (n = 28; 19%), followed by sarcoid-like lymphadenopathy (n = 8; 5%) and pneumonitis (n = 8; 5%). Hepatitis (n = 3), thyroiditis (n = 2), and pancreatitis (n = 1) were less common. The resolution of irAEs was noted in 32 of 36 patients (89%) with further follow-up scans, with a median time of 2.3 months after the detection of irAE. In conclusion, irAEs were noted on body imaging in 31% of patients with melanoma treated with ipilimumab. Colitis was the most common, followed by sarcoid-like lymphadenopathy and pneumonitis. The results call for an increased awareness of irAEs, given the expanding role of cancer immunotherapy. Cancer Immunol Res; 3(10); 1185–92. ©2015 AACR.

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Crossref · 10.1158/2326-6066.cir-15-0102

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Metadata

Authors
Tirumani, S. H., Ramaiya, N. H., Keraliya, A., Bailey, N. D., Ott, P. A., Hodi, F. S., & Nishino, M.
Venue
Cancer Immunology Research
Published
2015-10-01
Volume
3
Issue
10
Pages
1185-1192
ISSN
  • 2326-6066 (ISSN-L)
  • 2326-6074
OpenAlex
W2122096722
Cited by
254
References
9
FWCI
8.32
Type
journal article
Language
en
Open access
green

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