Isabeau A. Ciggaar , Lysanne D.A.N. de Muynck , Lioe-Fee de Geus-Oei , Floris H.P. van Velden , Cornelis D. de Kroon , Lenka M. Pereira Arias-Bouda , Wyanne A. Noortman , Els L. van Persijn van Meerten , Petra Dibbets-Schneider , Hendrik J.F. Helmerhorst , Albert D. Windhorst , Alexander L. Vahrmeijer , Inge T.A. Peters , Katja N. Gaarenstroom
{"title":"晚期上皮性卵巢癌术前[18F]氟-PEG-叶酸 PET/CT:安全性和可行性研究","authors":"Isabeau A. Ciggaar , Lysanne D.A.N. de Muynck , Lioe-Fee de Geus-Oei , Floris H.P. van Velden , Cornelis D. de Kroon , Lenka M. Pereira Arias-Bouda , Wyanne A. Noortman , Els L. van Persijn van Meerten , Petra Dibbets-Schneider , Hendrik J.F. Helmerhorst , Albert D. Windhorst , Alexander L. Vahrmeijer , Inge T.A. Peters , Katja N. Gaarenstroom","doi":"10.1016/j.nucmedbio.2024.108952","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>The selection for either primary or interval cytoreductive surgery (CRS) in patients with epithelial ovarian cancer (EOC) is currently based on imaging techniques like computed tomography (CT), [<sup>18</sup>F]fluorodeoxyglucose-positron emission tomography ([<sup>18</sup>F]FDG-PET), diffusion-weighted magnetic resonance imaging (DW-MRI) and/or diagnostic laparoscopy, but these have limitations. Folate receptor (FR)-targeted PET/CT imaging, using [<sup>18</sup>F]fluoro-PEG-folate, could improve preoperative assessment, potentially reducing unnecessary laparotomies. This paper presents the first experience with [<sup>18</sup>F]fluoro-PEG-folate PET/CT imaging in advanced stage EOC, focusing on safety, tolerability, and feasibility for reflecting the extent of disease.</div></div><div><h3>Methods</h3><div>Tolerability and safety were monitored after administration of the [<sup>18</sup>F]fluoro-PEG-folate tracer by measurements of vital function parameters (blood pressure, heart rate, peripheral oxygen saturation, respiratory rate, and temperature). In addition, (serious) adverse events were recorded. Disease burden was quantified using the Peritoneal Cancer Index (PCI) score on preoperative [<sup>18</sup>F]fluoro-PEG-folate PET/CT and during surgery. PCI scores were compared with intraoperative findings, considering histopathologic results as the gold standard. Tissue specimens were stained for FRα and FRβ. Relative uptake of the radiotracer by EOC lesions and other tissues was quantified using body weighted standardized uptake values (SUV).</div></div><div><h3>Results</h3><div>The study was terminated prematurely during the interim analysis after inclusion of eight patients of whom five had completed the study protocol. Although [<sup>18</sup>F]fluoro-PEG-folate demonstrated safety, efficacy for tumor-specific imaging was limited. Despite clear FRα overexpression, low tracer uptake was observed in EOC lesions, contrasting with high uptake in healthy tissues, posing challenges in specificity and accurately assessing tumor burden.</div></div><div><h3>Conclusions</h3><div>Overall, while [<sup>18</sup>F]fluoro-PEG-folate was well-tolerated, its clinical utility in the preoperative assessment of the extent of disease in EOC was limited. This highlights the need for further research in developing targeted imaging agents for optimal detection of EOC metastases.</div><div>Trial registration: <span><span>Clinicaltrials.gov</span><svg><path></path></svg></span>, NCT05215496. Registered 31 January 2022.</div></div>","PeriodicalId":19363,"journal":{"name":"Nuclear medicine and biology","volume":"138 ","pages":"Article 108952"},"PeriodicalIF":3.6000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preoperative [18F]fluoro-PEG-folate PET/CT in advanced stage epithelial ovarian cancer: A safety and feasibility study\",\"authors\":\"Isabeau A. Ciggaar , Lysanne D.A.N. de Muynck , Lioe-Fee de Geus-Oei , Floris H.P. van Velden , Cornelis D. de Kroon , Lenka M. Pereira Arias-Bouda , Wyanne A. Noortman , Els L. van Persijn van Meerten , Petra Dibbets-Schneider , Hendrik J.F. Helmerhorst , Albert D. Windhorst , Alexander L. Vahrmeijer , Inge T.A. Peters , Katja N. Gaarenstroom\",\"doi\":\"10.1016/j.nucmedbio.2024.108952\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Purpose</h3><div>The selection for either primary or interval cytoreductive surgery (CRS) in patients with epithelial ovarian cancer (EOC) is currently based on imaging techniques like computed tomography (CT), [<sup>18</sup>F]fluorodeoxyglucose-positron emission tomography ([<sup>18</sup>F]FDG-PET), diffusion-weighted magnetic resonance imaging (DW-MRI) and/or diagnostic laparoscopy, but these have limitations. Folate receptor (FR)-targeted PET/CT imaging, using [<sup>18</sup>F]fluoro-PEG-folate, could improve preoperative assessment, potentially reducing unnecessary laparotomies. This paper presents the first experience with [<sup>18</sup>F]fluoro-PEG-folate PET/CT imaging in advanced stage EOC, focusing on safety, tolerability, and feasibility for reflecting the extent of disease.</div></div><div><h3>Methods</h3><div>Tolerability and safety were monitored after administration of the [<sup>18</sup>F]fluoro-PEG-folate tracer by measurements of vital function parameters (blood pressure, heart rate, peripheral oxygen saturation, respiratory rate, and temperature). In addition, (serious) adverse events were recorded. Disease burden was quantified using the Peritoneal Cancer Index (PCI) score on preoperative [<sup>18</sup>F]fluoro-PEG-folate PET/CT and during surgery. PCI scores were compared with intraoperative findings, considering histopathologic results as the gold standard. Tissue specimens were stained for FRα and FRβ. Relative uptake of the radiotracer by EOC lesions and other tissues was quantified using body weighted standardized uptake values (SUV).</div></div><div><h3>Results</h3><div>The study was terminated prematurely during the interim analysis after inclusion of eight patients of whom five had completed the study protocol. Although [<sup>18</sup>F]fluoro-PEG-folate demonstrated safety, efficacy for tumor-specific imaging was limited. Despite clear FRα overexpression, low tracer uptake was observed in EOC lesions, contrasting with high uptake in healthy tissues, posing challenges in specificity and accurately assessing tumor burden.</div></div><div><h3>Conclusions</h3><div>Overall, while [<sup>18</sup>F]fluoro-PEG-folate was well-tolerated, its clinical utility in the preoperative assessment of the extent of disease in EOC was limited. This highlights the need for further research in developing targeted imaging agents for optimal detection of EOC metastases.</div><div>Trial registration: <span><span>Clinicaltrials.gov</span><svg><path></path></svg></span>, NCT05215496. Registered 31 January 2022.</div></div>\",\"PeriodicalId\":19363,\"journal\":{\"name\":\"Nuclear medicine and biology\",\"volume\":\"138 \",\"pages\":\"Article 108952\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2024-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear medicine and biology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0969805124000787\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear medicine and biology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0969805124000787","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING","Score":null,"Total":0}
Preoperative [18F]fluoro-PEG-folate PET/CT in advanced stage epithelial ovarian cancer: A safety and feasibility study
Purpose
The selection for either primary or interval cytoreductive surgery (CRS) in patients with epithelial ovarian cancer (EOC) is currently based on imaging techniques like computed tomography (CT), [18F]fluorodeoxyglucose-positron emission tomography ([18F]FDG-PET), diffusion-weighted magnetic resonance imaging (DW-MRI) and/or diagnostic laparoscopy, but these have limitations. Folate receptor (FR)-targeted PET/CT imaging, using [18F]fluoro-PEG-folate, could improve preoperative assessment, potentially reducing unnecessary laparotomies. This paper presents the first experience with [18F]fluoro-PEG-folate PET/CT imaging in advanced stage EOC, focusing on safety, tolerability, and feasibility for reflecting the extent of disease.
Methods
Tolerability and safety were monitored after administration of the [18F]fluoro-PEG-folate tracer by measurements of vital function parameters (blood pressure, heart rate, peripheral oxygen saturation, respiratory rate, and temperature). In addition, (serious) adverse events were recorded. Disease burden was quantified using the Peritoneal Cancer Index (PCI) score on preoperative [18F]fluoro-PEG-folate PET/CT and during surgery. PCI scores were compared with intraoperative findings, considering histopathologic results as the gold standard. Tissue specimens were stained for FRα and FRβ. Relative uptake of the radiotracer by EOC lesions and other tissues was quantified using body weighted standardized uptake values (SUV).
Results
The study was terminated prematurely during the interim analysis after inclusion of eight patients of whom five had completed the study protocol. Although [18F]fluoro-PEG-folate demonstrated safety, efficacy for tumor-specific imaging was limited. Despite clear FRα overexpression, low tracer uptake was observed in EOC lesions, contrasting with high uptake in healthy tissues, posing challenges in specificity and accurately assessing tumor burden.
Conclusions
Overall, while [18F]fluoro-PEG-folate was well-tolerated, its clinical utility in the preoperative assessment of the extent of disease in EOC was limited. This highlights the need for further research in developing targeted imaging agents for optimal detection of EOC metastases.
Trial registration: Clinicaltrials.gov, NCT05215496. Registered 31 January 2022.
期刊介绍:
Nuclear Medicine and Biology publishes original research addressing all aspects of radiopharmaceutical science: synthesis, in vitro and ex vivo studies, in vivo biodistribution by dissection or imaging, radiopharmacology, radiopharmacy, and translational clinical studies of new targeted radiotracers. The importance of the target to an unmet clinical need should be the first consideration. If the synthesis of a new radiopharmaceutical is submitted without in vitro or in vivo data, then the uniqueness of the chemistry must be emphasized.
These multidisciplinary studies should validate the mechanism of localization whether the probe is based on binding to a receptor, enzyme, tumor antigen, or another well-defined target. The studies should be aimed at evaluating how the chemical and radiopharmaceutical properties affect pharmacokinetics, pharmacodynamics, or therapeutic efficacy. Ideally, the study would address the sensitivity of the probe to changes in disease or treatment, although studies validating mechanism alone are acceptable. Radiopharmacy practice, addressing the issues of preparation, automation, quality control, dispensing, and regulations applicable to qualification and administration of radiopharmaceuticals to humans, is an important aspect of the developmental process, but only if the study has a significant impact on the field.
Contributions on the subject of therapeutic radiopharmaceuticals also are appropriate provided that the specificity of labeled compound localization and therapeutic effect have been addressed.