Are Circulating Tumor Cells (CTCs) Ready for Clinical Use in Breast Cancer? An Overview of Completed and Ongoing Trials Using CTCs for Clinical Treatment Decisions

In recent years, breast cancer treatment has become increasingly individualized. Circulating tumor cells (CTCs) have the potential to move personalized medicine another step forward. The prognostic relevance of CTCs has already been proven both in early and metastatic breast cancer. In addition, the...

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Main Authors: Fabienne Schochter, Thomas W. P. Friedl, Amelie deGregorio, Sabrina Krause, Jens Huober, Brigitte Rack, Wolfgang Janni
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/8/11/1412
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author Fabienne Schochter
Thomas W. P. Friedl
Amelie deGregorio
Sabrina Krause
Jens Huober
Brigitte Rack
Wolfgang Janni
author_facet Fabienne Schochter
Thomas W. P. Friedl
Amelie deGregorio
Sabrina Krause
Jens Huober
Brigitte Rack
Wolfgang Janni
author_sort Fabienne Schochter
collection DOAJ
description In recent years, breast cancer treatment has become increasingly individualized. Circulating tumor cells (CTCs) have the potential to move personalized medicine another step forward. The prognostic relevance of CTCs has already been proven both in early and metastatic breast cancer. In addition, there is evidence that changes in CTC numbers during the course of therapy can predict treatment response. Thus, CTCs are a suitable tool for repeated treatment monitoring through noninvasive liquid biopsy. The next step is to evaluate how this information can be used for clinical decision making with regard to the extension, modification, or abandonment of a treatment regimen. This review will summarize the completed and ongoing clinical trials using CTC number or phenotype for treatment decisions. Based on current knowledge, CTCs can be regarded as a useful prognostic and predictive marker that is well suited for both risk stratification and treatment monitoring in breast cancer patients. However, there is still the need to provide sufficient and unequivocal evidence for whether CTCs may indeed be used to guide treatment decisions in everyday clinical practice. The results of the ongoing trials described in this review are eagerly awaited to answer these important questions.
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spelling doaj.art-6a41aa12cdde4a55bf1ac8c7c772dd6b2023-09-03T00:27:24ZengMDPI AGCells2073-44092019-11-01811141210.3390/cells8111412cells8111412Are Circulating Tumor Cells (CTCs) Ready for Clinical Use in Breast Cancer? An Overview of Completed and Ongoing Trials Using CTCs for Clinical Treatment DecisionsFabienne Schochter0Thomas W. P. Friedl1Amelie deGregorio2Sabrina Krause3Jens Huober4Brigitte Rack5Wolfgang Janni6Department of Obstetrics and Gynecology, University Hospital Ulm, University of Ulm, 89075 Ulm, GermanyDepartment of Obstetrics and Gynecology, University Hospital Ulm, University of Ulm, 89075 Ulm, GermanyDepartment of Obstetrics and Gynecology, University Hospital Ulm, University of Ulm, 89075 Ulm, GermanyDepartment of Obstetrics and Gynecology, University Hospital Ulm, University of Ulm, 89075 Ulm, GermanyDepartment of Obstetrics and Gynecology, University Hospital Ulm, University of Ulm, 89075 Ulm, GermanyDepartment of Obstetrics and Gynecology, University Hospital Ulm, University of Ulm, 89075 Ulm, GermanyDepartment of Obstetrics and Gynecology, University Hospital Ulm, University of Ulm, 89075 Ulm, GermanyIn recent years, breast cancer treatment has become increasingly individualized. Circulating tumor cells (CTCs) have the potential to move personalized medicine another step forward. The prognostic relevance of CTCs has already been proven both in early and metastatic breast cancer. In addition, there is evidence that changes in CTC numbers during the course of therapy can predict treatment response. Thus, CTCs are a suitable tool for repeated treatment monitoring through noninvasive liquid biopsy. The next step is to evaluate how this information can be used for clinical decision making with regard to the extension, modification, or abandonment of a treatment regimen. This review will summarize the completed and ongoing clinical trials using CTC number or phenotype for treatment decisions. Based on current knowledge, CTCs can be regarded as a useful prognostic and predictive marker that is well suited for both risk stratification and treatment monitoring in breast cancer patients. However, there is still the need to provide sufficient and unequivocal evidence for whether CTCs may indeed be used to guide treatment decisions in everyday clinical practice. The results of the ongoing trials described in this review are eagerly awaited to answer these important questions.https://www.mdpi.com/2073-4409/8/11/1412circulating tumor cells (ctcs)clinical trialsbreast cancerctc-based treatment decisions
spellingShingle Fabienne Schochter
Thomas W. P. Friedl
Amelie deGregorio
Sabrina Krause
Jens Huober
Brigitte Rack
Wolfgang Janni
Are Circulating Tumor Cells (CTCs) Ready for Clinical Use in Breast Cancer? An Overview of Completed and Ongoing Trials Using CTCs for Clinical Treatment Decisions
Cells
circulating tumor cells (ctcs)
clinical trials
breast cancer
ctc-based treatment decisions
title Are Circulating Tumor Cells (CTCs) Ready for Clinical Use in Breast Cancer? An Overview of Completed and Ongoing Trials Using CTCs for Clinical Treatment Decisions
title_full Are Circulating Tumor Cells (CTCs) Ready for Clinical Use in Breast Cancer? An Overview of Completed and Ongoing Trials Using CTCs for Clinical Treatment Decisions
title_fullStr Are Circulating Tumor Cells (CTCs) Ready for Clinical Use in Breast Cancer? An Overview of Completed and Ongoing Trials Using CTCs for Clinical Treatment Decisions
title_full_unstemmed Are Circulating Tumor Cells (CTCs) Ready for Clinical Use in Breast Cancer? An Overview of Completed and Ongoing Trials Using CTCs for Clinical Treatment Decisions
title_short Are Circulating Tumor Cells (CTCs) Ready for Clinical Use in Breast Cancer? An Overview of Completed and Ongoing Trials Using CTCs for Clinical Treatment Decisions
title_sort are circulating tumor cells ctcs ready for clinical use in breast cancer an overview of completed and ongoing trials using ctcs for clinical treatment decisions
topic circulating tumor cells (ctcs)
clinical trials
breast cancer
ctc-based treatment decisions
url https://www.mdpi.com/2073-4409/8/11/1412
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