Is local review of positron emission tomography scans sufficient in diffuse large B‐cell lymphoma clinical trials? A CALGB 50303 analysis

Autor: Pallawi Torka, Levi D. Pederson, Michael V. Knopp, David Poon, Jun Zhang, Brad S. Kahl, Howard R. Higley, Gary Kelloff, Jonathan W. Friedberg, Lawrence H. Schwartz, Wyndham H. Wilson, John P. Leonard, Nancy L. Bartlett, Heiko Schöder, Amy S. Ruppert
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Cancer Medicine, Vol 12, Iss 7, Pp 8211-8217 (2023)
Druh dokumentu: article
ISSN: 2045-7634
DOI: 10.1002/cam4.5628
Popis: Abstract Background Quantitative methods of Fluorodeoxyglucose Positron Emission Tomography (FDG‐PET) interpretation, including the percent change in FDG uptake from baseline (ΔSUV), are under investigation in lymphoma to overcome challenges associated with visual scoring systems (VSS) such as the Deauville 5‐point scale (5‐PS). Methods In CALGB 50303, patients with DLBCL received frontline R‐CHOP or DA‐EPOCH‐R, and although there were no significant associations between interim PET responses assessed centrally after cycle 2 (iPET) using 5‐PS with progression‐free survival (PFS) or overall survival (OS), there were significant associations between central determinations of iPET ∆SUV with PFS/OS. In this patient cohort, we retrospectively compared local vs central iPET readings and evaluated associations between local imaging data and survival outcomes. Results Agreement between local and central review was moderate (kappa = 0.53) for VSS and high (kappa = 0.81) for ∆SUV categories (
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