Journal article

F-18-FDG PET/CT based spleen to liver ratio associates with clinical outcome to ipilimumab in patients with metastatic melanoma

Annie Wong, Jason Callahan, Marleen Keyaerts, Bart Neyns, Johanna Mangana, Susanne Aberle, Alan Herschtal, Sonia Fullerton, Donna Milne, Amir Iravani, Grant A McArthur, Rodney J Hicks

Cancer Imaging | BMC | Published : 2020

Abstract

BACKGROUND: Immune checkpoint blockade such as ipilimumab and anti-PD1 monoclonal antibodies have significantly improved survival in advanced melanoma. Biomarkers are urgently needed as a majority of patients do not respond, despite treatment-related toxicities. We analysed pre-treatment 18F-fluorodeoxyglucose positron emission tomography/computerised tomography (FDG PET/CT) parameters to assess its correlation with patient outcome. METHODS: This retrospective study evaluated pre-treatment FDG PET/CT scans in a discovery cohort of patients with advanced melanoma treated with ipilimumab or anti-PD1. Pre-treatment scans were assessed for maximum tumoral standardised uptake value (SUVmax), meta..

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