학술논문

Comparison of FDG-PET/CT and CT for evaluation of tumor response to nivolumab plus ipilimumab combination therapy and prognosis prediction in patients with unresectable malignant pleural mesothelioma.
Document Type
Academic Journal
Author
Kitajima K; Department of Radiology, Hyogo Medical University, Nishinomiya, Hyogo, Japan.; Kuribayashi K; Division of Respiratory Medicine, Department of Internal Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan.; Minami T; Division of Respiratory Medicine, Department of Internal Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan.; Yokoyama H; Department of Radiology, Hyogo Medical University, Nishinomiya, Hyogo, Japan.; Nakamura A; Department of Thoracic Surgery, Hyogo Medical University, Nishinomiya, Hyogo, Japan.; Hashimoto M; Department of Thoracic Surgery, Hyogo Medical University, Nishinomiya, Hyogo, Japan.; Kijima T; Division of Respiratory Medicine, Department of Internal Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan.; Hasegawa S; Department of Thoracic Surgery, Hyogo Medical University, Nishinomiya, Hyogo, Japan.; Kaida H; Department of Radiology, Kindai University Faculty of Medicine, Osaka, Japan.; Yamakado K; Department of Radiology, Hyogo Medical University, Nishinomiya, Hyogo, Japan.
Source
Publisher: Impact Journals Country of Publication: United States NLM ID: 101532965 Publication Model: Electronic Cited Medium: Internet ISSN: 1949-2553 (Electronic) Linking ISSN: 19492553 NLM ISO Abbreviation: Oncotarget Subsets: MEDLINE
Subject
Language
English
Abstract
Objectives: Results for malignant pleural mesothelioma (MPM) patients following first-line treatment with nivolumab plus ipilimumab obtained with immunotherapy-modified PERCIST (imPERCIST), shown by [ 18 F]fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT), and modified RECIST (mRECIST), shown by CT, were compared for response evaluation and prognosis prediction.
Results: imPERCIST indicated nine progressive metabolic disease (PMD), eight stable metabolic disease (SMD), four partial metabolic response (PMR), and five complete metabolic response (CMR) cases. mRECIST showed nine with progressive disease (PD), nine stable disease (SD), seven partial response (PR), and one complete response (CR). Although high concordance was noted (κ = 0.827), imPERCIST correctly judged a greater percentage with CMR (15.4%). Following a median 10.0 months, 15 patients showed progression and eight died from MPM. With both, progression-free survival (PFS) and overall survival (OS) were significantly longer in patients without progression (CMR/PMR/SMD, CR/PR/SD, respectively) as compared to PMD/PD patients (imPERCIST p < 0.0001 and p = 0.015, respectively; mRECIST p < 0.0001 and p = 0.015, respectively).
Methods: Twenty-six patients (23 males, 3 females; median 73.5 years) with histologically proven MPM and no curative surgery received nivolumab plus ipilimumab combination therapy. FDG-PET/CT and diagnostic CT scanning at the baseline, and after 2-4 cycles (2 in three, 3 in 17, 4 in six patients) were performed. Therapeutic response findings evaluated using imPERCIST and mRECIST were compared. PFS and OS analyses were done using log-rank and Cox methods.
Conclusion: For unresectable MPM patient examinations, FDG-PET and CT provide accurate findings for evaluating tumor response and also prognosis prediction following first-line nivolumab plus ipilimumab immunotherapy (approximately three cycles).