scholarly journals FDG positron emission tomography imaging and ctDNA detection as an early dynamic biomarker of everolimus efficacy in advanced luminal breast cancer

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Andrea Gombos ◽  
David Venet ◽  
Lieveke Ameye ◽  
Peter Vuylsteke ◽  
Patrick Neven ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Fdg Pet ◽  
Positron Emission Tomography Imaging ◽  
Metastatic Breast ◽  
Endocrine Treatment ◽  
Luminal Breast Cancer ◽  
Positron Emission ◽  
Pet Ct ◽  
The Difference ◽  
Fdg Pet Ct

AbstractBiomarkers to identify patients without benefit from adding everolimus to endocrine treatment in metastatic breast cancer (MBC) are needed. We report the results of the Pearl trial conducted in five Belgian centers assessing 18F-FDG-PET/CT non-response (n = 45) and ctDNA detection (n = 46) after 14 days of exemestane-everolimus (EXE-EVE) to identify MBC patients who will not benefit. The metabolic non-response rate was 66.6%. Median PFS in non-responding patients (using as cut-off 25% for SUVmax decrease) was 3.1 months compared to 6.0 months in those showing response (HR: 0.77, 95% CI: 0.40–1.50, p = 0.44). The difference was significant when using a “post-hoc” cut-off of 15% (PFS 2.2 months vs 6.4 months). ctDNA detection at D14 was associated with PFS: 2.1 months vs 5.0 months (HR-2.5, 95% CI: 1.3–5.0, p = 0.012). Detection of ctDNA and/or the absence of 18F-FDG-PET/CT response after 14 days of EXE-EVE identifies patients with a low probability of benefiting from treatment. Independent validation is needed.

Can 8 week 18F-FDG PET/CT predict clinical response in evaluation of bone metastases in breast cancer?

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e12539-e12539
Author(s):  
Gurdip Kaur Azad ◽  
Francois Cousin ◽  
Angela Swampillai ◽  
Benjamin P Taylor ◽  
Ines Sandri ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Bone Metastases ◽  
Clinical Response ◽  
Fdg Pet ◽  
De Novo ◽  
Metastatic Breast ◽  
Response Assessment ◽  
Endocrine Treatment ◽  
Pet Ct ◽  
Fdg Pet Ct

e12539 Background: 18F-FDG (fluorodeoxyglucose) PET/CT scan is widely used for staging and response assessment of metastatic breast cancer. However, the role of early treatment response assessment of bone metastases remains undefined and the optimal method not yet determined. Our hypothesis was that early 18F-FDG PET/CT can predict subsequent clinical response and our aim was to compare early 8 week 18F-FDG PET/CT with clinical response assessment up to 12 weeks in bone metastases following endocrine treatment. Methods: Eighteen patients starting endocrine treatment for de novo or progressive bone metastases were prospectively recruited. 18F-FDG PET/CT scans were performed before and 8 weeks after treatment. Percentage change in maximum SUV (SUVmax) from the same ≤ 5 index lesions was measured. Clinical response up to 12 weeks, (combination of CT/bone scintigraphy, patient symptoms, Ca-15.3), assessed by an oncologist blinded to PET imaging findings was used as a reference standard. Results: In the 4 patients with progressive disease (PD); SUVmax increased ( > 25%) in 2/20 (10%) and was stable in 15/20 (75%) lesions. Clinically, 2/4 (50%) patients had stable symptoms and 2/4 (50%) worsening bone pain at 8 and 12 weeks. Ca-153 increased ( > 40%) in 3/4 (75%) patients. Conventional imaging at 12 weeks showed PD in all 4 patients. In the 7 patients with clinical partial response (PR); SUVmax decreased ( < 25%) in 23/35 (66%) and remained stable in 10/35 (29%) lesions. Ca-153 decreased ( > 80%) in 4/7 (57%) patients. Clinically, symptoms remained stable or improved in 6/7 (86%) patients at 8 and 12 weeks. Conventional scanning at 3 months showed either PR (n = 3) or SD (n = 4). In the 7 patients with stable disease (SD); SUVmax remained unchanged in 15/27 (56%) and decreased in 12/27 (44%) lesions. Ca-153 showed minimal changes in 6/7 (86%) patients. Conventional scans showed SD in all 7 patients. Conclusions: Our data show that although 18F-FDG PET/CT is reliable at predicting PR or SD, it has poorer predictive ability for clinical PD in bone metastases at 8 weeks. Intra-patient heterogeneity of response between lesions is a common observation. Clinical trial information: 12/LO/1801.

Circulating Tumor Cells and [18F]Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography for Outcome Prediction in Metastatic Breast Cancer

2009 ◽  
Vol 27 (20) ◽  
pp. 3303-3311 ◽  
Author(s):  
Ugo De Giorgi ◽  
Vicente Valero ◽  
Eric Rohren ◽  
Shaheenah Dawood ◽  
Naoto T. Ueno ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Computed Tomography ◽  
Overall Survival ◽  
Fdg Pet ◽  
Metastatic Breast ◽  
Emission Tomography ◽  
Therapeutic Monitoring ◽  
Positron Emission ◽  
Pet Ct ◽  
Fdg Pet Ct

PurposeCirculating tumor cells (CTCs) and [18F]fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) are two new promising tools for therapeutic monitoring. In this study, we compared the prognostic value of CTC and FDG-PET/CT monitoring during systemic therapy for metastatic breast cancer (MBC).Patients and MethodsA retrospective analyses of 115 MBC patients who started a new line of therapy and who had CTC counts and FDG-PET/CT scans performed at baseline and at 9 to 12 weeks during therapy (midtherapy) was performed. Patients were categorized according to midtherapy CTC counts as favorable (ie, < five CTCs/7.5 mL blood) or unfavorable (≥ five CTCs/7.5 mL blood) outcomes. CTC counts and FDG-PET/CT response at midtherapy were compared, and univariate and multivariate analyses were performed to identify factors associated with survival.ResultsIn 102 evaluable patients, the median overall survival time was 14 months (range, 1 to > 41 months). Midtherapy CTC levels correlated with FDG-PET/CT response in 68 (67%) of 102 evaluable patients. In univariate analysis, midtherapy CTC counts and FDG-PET/CT response predicted overall survival (P < .001 and P = .001, respectively). FDG-PET/CT predicted overall survival (P = .0086) in 31 (91%) of 34 discordant patients who had fewer than five CTCs at midtherapy. Only midtherapy CTC levels remained significant in a multivariate analysis (P = .004).ConclusionDetection of five or more CTCs during therapeutic monitoring can accurately predict prognosis in MBC beyond metabolic response. FDG-PET/CT deserves a role in patients who have fewer than five CTCs at midtherapy. Prospective trials should evaluate the most sensitive and cost-effective modality for therapeutic monitoring in MBC.

scholarly journals FDG PET/CT for prognostic stratification of patients with metastatic breast cancer treated with first line systemic therapy: Comparison of EORTC criteria and PERCIST

PLoS ONE ◽  
2018 ◽  
Vol 13 (7) ◽  
pp. e0199529 ◽  
Author(s):  
Edouard Depardon ◽  
Salim Kanoun ◽  
Olivier Humbert ◽  
Aurélie Bertaut ◽  
Jean-Marc Riedinger ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Systemic Therapy ◽  
Fdg Pet ◽  
Metastatic Breast ◽  
First Line ◽  
Pet Ct ◽  
Eortc Criteria ◽  
Prognostic Stratification ◽  
Fdg Pet Ct

scholarly journals The Value of 18 Fluorine-fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Imaging in Breast Cancer Staging

2020 ◽  
Vol 8 (A) ◽  
pp. 970-975
Author(s):  
Ahmed Tawakol ◽  
Maha Khalil ◽  
Yasser G. Abdelhafez ◽  
Mai Hussein ◽  
Mohamed Fouad Osman
Keyword(s):  
Breast Cancer ◽  
Computed Tomography ◽  
Fdg Pet ◽  
Cancer Staging ◽  
Emission Tomography ◽  
Breast Cancer Staging ◽  
Positron Emission ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

BACKGROUND: Accurate staging is important for management decisions in patients with newly diagnosed breast cancer. AIM: This study was conducted to evaluate the value of 18 fluorine-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) imaging in breast cancer staging.. METHODS: A prospective study of 80 patients (1 male and 79 female) mean age 51.13 years with histologically confirmed breast cancer. The staging procedures included history, physical examination, mammography, and CT of neck, chest, abdomen, and pelvis; then, PET/CT was performed in a time interval <30 days. The findings of PET/CT were compared with those of the other conventional methods. RESULTS: The agreement between conventional methods (mammography, breast ultrasound, contrast-enhanced CT of the neck, chest, abdomen, and pelvis) and 18F FDG-PET/CT was 0.6 for assessing the T stage, 0.39 for N stage, and 0.75 for M stage. There was moderate agreement between CT and 18F FDG-PET/CT in the detection of nodal lesions (K=0.6) and pulmonary lesions (K=0.51), while a perfect agreement was noted for detecting osseous (K=0.82) and liver lesions (K=0.81). In total, 50 patients (62.5%) were concordantly staged between the conventional imaging and 18F-FDG PET/CT, while 30 patients (37.5%) showed a different tumor, node, and metastasis stage. The changes were driven by the detection of additional findings (n=26) or exclusion of findings (n=4), mainly at the lymph nodes (LNs) and/or distant sites. Regarding N status, 18F FDG-PET/CT revealed previously unknown regional lymphatic spread in supraclavicular (n=4; 5%), infraclavicular (n=11; 13.7%), and internal mammary (n=12; 15%) lymph node groups. 18F-FDG PET/CT changed M status in a total of four patients (5%); three of them were upstaged by detecting distant metastases, while osseous deposits were excluded in one patient leading to downstaging. CONCLUSION: 18F-FDG-PET/CT is considered a valuable imaging tool in the initial staging of breast cancer, which significantly impacts the overall American Joint Committee on Cancer staging in 37.5% of our study population.

18F-FDG PET/CT in a Case of Metastatic Breast Cancer to the Vulva

2019 ◽  
Vol 44 (7) ◽  
pp. 572-573
Author(s):  
Priscilla Guglielmo ◽  
Mariachiara Paderno ◽  
Federica Elisei ◽  
Luca Guerra ◽  
Claudio Landoni ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Fdg Pet ◽  
Metastatic Breast ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

68Ga-somatostatin receptor analogs and 18F-FDG PET/CT in the localization of metastatic pheochromocytomas and paragangliomas with germline mutations: a meta-analysis

2018 ◽  
Vol 59 (12) ◽  
pp. 1466-1474 ◽  
Author(s):  
Ying Kan ◽  
Shuxin Zhang ◽  
Wei Wang ◽  
Jie Liu ◽  
Jigang Yang ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Meta Analysis ◽  
Somatostatin Receptor ◽  
Germline Mutations ◽  
Positron Emission ◽  
Pet Ct ◽  
Lesion Level ◽  
The Difference ◽  
Fdg Pet Ct

Background Metastatic pheochromocytoma and paraganglioma (PCs/PGLs) show high germline mutation, and 18F-FDG and 68Ga-DOTA peptide positron emission tomography/computed tomography (PET/CT) imaging are recommended for the diagnosis of metastatic of PCs. However, there has been lack of direct comparison of the two modalities in the diagnosis of metastatic of PCs up to now. Purpose To evaluate and compare the value of localization of 68Ga-somatostatin receptor analogs and 18F-FDG in the diagnosis of metastatic PCs/PGLs. Material and Methods A comprehensive literature search of PubMed/MEDLINE, ScienceDirect, and Web of Science was performed in accordance with the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) guidelines published in August 2016. We critically reviewed all studies based on the PICOS criteria. QUADAS-2 was used to evaluate the quality of the methodology of the included studies. Results This meta-analysis included 17 studies (629 patients, average age [mean ± SD] = 42.7 ± 6.3 years). The pooled sensitivity and specificity of 18F-FDG and 68Ga peptides were 0.85 (95% confidence interval [CI] = 0.78–0.91) and 0.55 (95% CI = 0.37–0.73), and 0.95 (95% CI = 0.92–0.97) and 0.87 (95% CI = 0.63–0.96), respectively. The area under the sROC curves of the 18F-FDG and 68Ga peptides were 0.88 (95% CI = 0.85–0.91) and 0.78 (95% CI = 0.74–0.81), respectively. A subgroup analysis demonstrated that the difference at the per-lesion level and gene mutation level was significant. Conclusion Compared to 18F-FDG PET/CT, the 68Ga-somatostatin receptor demonstrated good performance in the localization of metastatic PCs/PGLs, especially those with germline mutations. The use of the 68Ga-somatostatin receptor can be a new tool in the diagnosis of metastatic PCs/PGLs.

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