Liquid Biopsy and Pancreas Cancer: Detection of AXL(+) CTCs (CTC-AXL-PANC)
NCT ID: NCT05346536
Last Updated: 2025-07-10
Study Results
Results pending
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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Recruitment Status
RECRUITING
Clinical Phase
NA
Total Enrollment
63 participants
Study Classification
INTERVENTIONAL
Study Start Date
2022-06-16
Study Completion Date
2027-12-01
Brief Summary
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In solid cancers, some more aggressive tumor cells actively detach from the primary lesion and then travel through the circulating compartment to reach distant organs and form micro-metastases. These circulating tumor cells (CTCs) that have become disseminated tumor cells (DTCs) flourish in their new environments and may remain dormant for many years after the complete resection of the primary tumor. Detecting CTCs in the blood is also relevant for assessing tumor progression, prognosis and therapeutic follow-up. The non-invasive, highly sensitive for CTCs analysis is called "liquid biopsy". Pancreatic adenocarcinoma and breast cancer remain among cancers of very poor prognosis and thus represent a major therapeutic challenge. In recent years, the Axl membrane tyrosine kinase receptor has been the target of growing interest. Activation of the Gas6/Axl signaling pathway is associated with, among other things, tumor cell growth and survival, epithelial to mesenchymal transition (EMT) or drug resistances. In addition, Axl overexpression is frequently identified in patients with pancreatic adenocarcinoma and is associated with a poor prognosis. For example, the Laboratoire des Cellules Circulantes Rares Humaines (LCCRH) at the CHU and the University of Montpellier has developed two new "CTC-AXL" tests to detect CTCs expressing Axl: one using the CellSearch® (gold standard and FDA-approved) system and the other using the EPIDROP technique. The purpose of this research project is to assess the concordance of the "CTC-AXL" measurement by the innovative EPIDROP technique and the CellSearch® technique in patients with metastatic pancreatic or breast cancer.
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Detailed Description
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In solid cancers, after the formation and growth of the primary tumor, some more aggressive tumor cells actively detach from it and then travel through the circulating compartment to reach distant organs (bone marrow - liver - lung - brain…) and constitute new foci or micro-metastases. These circulating tumor cells (CTCs) that have become disseminated tumor cells (DTCs) flourish in their new environments and may remain dormant for many years after the complete resection of the primary tumor. Due to events not fully elucidated, DTCs can develop on site giving rise to macroscopic metastases but also join again the circulating compartment in the form of CTCs, swarm, colonize other organs and cause secondary metastases.
Detecting CTCs in the blood is very relevant for assessing tumor progression but also promising in terms of cancer disease prognosis and therapeutic follow-up. This new approach, published for the first time in 2010 under the term liquid biopsy, is therefore defined as a non-invasive blood test, extremely sensitive, achievable in real time and that allows the analysis of CTCs.
Currently, the choice of targeted therapies for a given patient is made after analyzing the primary tumor for expression and/or genomic status of specific molecular targets.
Many studies show that metastatic cells have phenotypic and genotypic characteristics distinct from those of most of the primary tumor. This can be explained either because metastatic cells acquire new genomic skills over time, or because a subset of metastatic sub-clone pre-exists within the primary tumor but has escaped detection by standard tissue biopsy techniques.
A direct analysis of CTCs could provide important additional information to prevent patients from inappropriate, costly treatments and harmful side effects.
For several years, the AXL protein, a tyrosine kinase receptor, has emerged as a new strategic target in oncology. Over-expression of AXL has been frequently identified in patients with pancreatic adenocarcinoma. AXL is a member of the Tyro3-Axl-Mer family, like its ligand protein Gas-6 (growth arrest-specific). An activation of the Gas6/AXL signaling pathway results in the activation of several effector pathways such as RAS/RAF/MEK/ERK or PI3K/AKT and is associated with, among other things, tumor cell growth and survival, metastatic formation and dissemination, Epithelial-to-mesenchymal transition (EMT) or drug resistances. It has been shown clinically that the AXL protein is a factor of poor prognosis and resistance to reference treatments (radiotherapy, chemotherapy or targeted therapy). Thus, many therapeutic strategies have been proposed and developed to inhibit the AXL pathway, ranging from chemical molecules, blocking its kinase activity and therefore the underlying signaling pathways, to nucleotide aptamers, AXL fusion proteins, and monoclonal antibodies.
Pancreatic adenocarcinoma, the 4th leading of cancer related deaths, remains among cancers of very poor prognosis and thus represents a major therapeutic challenge. The median overall survival is 11.1 months after optimal treatment (FOLFIRINOX). The clinical relevance and oncogenic potential of AXL in the progression of different types of tumors have been largely evidenced. Indeed, 50% to 75% of pancreatic adenocarcinoma samples have overexpression of AXL and the level of expression of AXL is correlated with clinical parameters indicating tumor aggressiveness and poor prognosis such as frequency of distant metastases or the survival.
In this context, the LCCRH lab, which has specialized in the detection and analysis of CTCs for 20 years, has developed a CTC-AXL detection test using the CellSearch® system. The CellSearch® system is the only method approved by the Food and Drug Administration (FDA) for the detection of CTC in colorectal, breast and metastatic prostate cancers. In addition, the LCCRH holds a patent for another technology for the detection and characterization of live and functional CTCs, called EPIDROP. The implementation of the AXL research is already done for AXL labelling on CTCs in EPIDROP as well as the visualization of the AXL cleavage by live CTC.
Thanks to this unique functional test of CTCs, it is easy to imagine offering an oncology 'oncogram' by testing in real time the effectiveness of drugs on CTCs and personalized medicine to patients.
This real-time liquid biopsy proposal on functional CTCs is quite innovative in Oncology.
To date, there are no studies on the study of functional CTCs related to AXL.
Primary objective:
\- Evaluate the concordance of the CTC-AXL measurement (inclusive) by the innovative EPIDROP technique and the CellSearch technique®
Secondary objectives:
* Evaluate the accuracy of the CTC-AXL measurement (inclusive) between EPIDROP and CellSearch®
* Assess the degree of agreement between CTC-AXL measurement (inclusive) by EPIDROP and CellSearch®
* Evaluate the overall survival of patients with metastatic pancreatic cancer based on the number of circulating tumour cells carrying the AXL marker measured by EPIDROP or CellSearch® at inclusion
* Evaluate the progression-free survival of patients with metastatic pancreatic cancer based on the number of circulating tumour cells carrying the AXL marker measured by EPIDROP or CellSearch® at inclusion
* Culture CTCs from the blood sample (EDTA 10mL)
* Creation of a single liquid biopsy bio-bank for pancreatic cancer involving only plasma storage
* Study the expression of PD-L1 (at inclusion) and detect the CTC subgroup expressing PD-L1 using EPIDROP and CellSearch® techniques;
* Study the circulating immune system in this cohort of patients with metastatic pancreatic cancer by performing immunological analysis on blood mononuclear cells;
* Determine if there is a significant correlation between the detection of CTC and CTC-PD-L1 and the circulating immune system (T cells, NK cells, B cells, macrophages, immune checkpoints, platelets);
* To assess the correlation between CTC, CTC-PD-L1 and immune cells and the clinical outcomes (progression-free survival, overall survival) of these patients with metastatic pancreatic cancer.
Detecting CTCs in the blood is very relevant for assessing tumor progression but also promising in terms of cancer disease prognosis and therapeutic follow-up. This new approach, published for the first time in 2010 under the term liquid biopsy, is therefore defined as a non-invasive blood test, extremely sensitive, achievable in real time and that allows the analysis of CTCs.
Currently, the choice of targeted therapies for a given patient is made after analyzing the primary tumor for expression and/or genomic status of specific molecular targets.
Many studies show that metastatic cells have phenotypic and genotypic characteristics distinct from those of most of the primary tumor. This can be explained either because metastatic cells acquire new genomic skills over time, or because a subset of metastatic sub-clone pre-exists within the primary tumor but has escaped detection by standard tissue biopsy techniques.
A direct analysis of CTCs could provide important additional information to prevent patients from inappropriate, costly treatments and harmful side effects.
For several years, the AXL protein, a tyrosine kinase receptor, has emerged as a new strategic target in oncology. Over-expression of AXL has been frequently identified in patients with pancreatic adenocarcinoma. AXL is a member of the Tyro3-Axl-Mer family, like its ligand protein Gas-6 (growth arrest-specific). An activation of the Gas6/AXL signaling pathway results in the activation of several effector pathways such as RAS/RAF/MEK/ERK or PI3K/AKT and is associated with, among other things, tumor cell growth and survival, metastatic formation and dissemination, Epithelial-to-mesenchymal transition (EMT) or drug resistances. It has been shown clinically that the AXL protein is a factor of poor prognosis and resistance to reference treatments (radiotherapy, chemotherapy or targeted therapy). Thus, many therapeutic strategies have been proposed and developed to inhibit the AXL pathway, ranging from chemical molecules, blocking its kinase activity and therefore the underlying signaling pathways, to nucleotide aptamers, AXL fusion proteins, and monoclonal antibodies.
Pancreatic adenocarcinoma, the 4th leading of cancer related deaths, remains among cancers of very poor prognosis and thus represents a major therapeutic challenge. The median overall survival is 11.1 months after optimal treatment (FOLFIRINOX). The clinical relevance and oncogenic potential of AXL in the progression of different types of tumors have been largely evidenced. Indeed, 50% to 75% of pancreatic adenocarcinoma samples have overexpression of AXL and the level of expression of AXL is correlated with clinical parameters indicating tumor aggressiveness and poor prognosis such as frequency of distant metastases or the survival.
In this context, the LCCRH lab, which has specialized in the detection and analysis of CTCs for 20 years, has developed a CTC-AXL detection test using the CellSearch® system. The CellSearch® system is the only method approved by the Food and Drug Administration (FDA) for the detection of CTC in colorectal, breast and metastatic prostate cancers. In addition, the LCCRH holds a patent for another technology for the detection and characterization of live and functional CTCs, called EPIDROP. The implementation of the AXL research is already done for AXL labelling on CTCs in EPIDROP as well as the visualization of the AXL cleavage by live CTC.
Thanks to this unique functional test of CTCs, it is easy to imagine offering an oncology 'oncogram' by testing in real time the effectiveness of drugs on CTCs and personalized medicine to patients.
This real-time liquid biopsy proposal on functional CTCs is quite innovative in Oncology.
To date, there are no studies on the study of functional CTCs related to AXL.
Primary objective:
\- Evaluate the concordance of the CTC-AXL measurement (inclusive) by the innovative EPIDROP technique and the CellSearch technique®
Secondary objectives:
* Evaluate the accuracy of the CTC-AXL measurement (inclusive) between EPIDROP and CellSearch®
* Assess the degree of agreement between CTC-AXL measurement (inclusive) by EPIDROP and CellSearch®
* Evaluate the overall survival of patients with metastatic pancreatic cancer based on the number of circulating tumour cells carrying the AXL marker measured by EPIDROP or CellSearch® at inclusion
* Evaluate the progression-free survival of patients with metastatic pancreatic cancer based on the number of circulating tumour cells carrying the AXL marker measured by EPIDROP or CellSearch® at inclusion
* Culture CTCs from the blood sample (EDTA 10mL)
* Creation of a single liquid biopsy bio-bank for pancreatic cancer involving only plasma storage
* Study the expression of PD-L1 (at inclusion) and detect the CTC subgroup expressing PD-L1 using EPIDROP and CellSearch® techniques;
* Study the circulating immune system in this cohort of patients with metastatic pancreatic cancer by performing immunological analysis on blood mononuclear cells;
* Determine if there is a significant correlation between the detection of CTC and CTC-PD-L1 and the circulating immune system (T cells, NK cells, B cells, macrophages, immune checkpoints, platelets);
* To assess the correlation between CTC, CTC-PD-L1 and immune cells and the clinical outcomes (progression-free survival, overall survival) of these patients with metastatic pancreatic cancer.
Conditions
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Pancreatic Ductal Adenocarcinoma
Metastatic Pancreatic Cancer
Circulating Tumor Cell
Study Design
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Allocation Method
NA
Intervention Model
SINGLE_GROUP
Single-centre prospective cohort Cohort of newly diagnosed major patients with metastatic pancreatic cancer, naïve of any treatment
Primary Study Purpose
OTHER
Blinding Strategy
NONE
Study Groups
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Metastatic pancreatic cancer treatment-naive patients
Newly diagnosed major patients with metastatic pancreatic cancer, naïve of any treatment for metastatic disease
Group Type
EXPERIMENTAL
Detection of circulating tumor cells expressing Axl: CTC-AXL(+)
Intervention Type
OTHER
Detection of CTC-AXL(+) using 2 techniques:
* CellSearch®, FDA-USA approved technology
* EPIDROP System
CellSearch® (Menarini Company) The current gold-standard CellSearch® technique requires the use of CellSave tubes. This technique allows the isolation of fixed CTCs. This technique uses a positive (CellSearch® Epithelial Cell Kit) enrichment method from total blood using magnetic beads coupled to an EpCAM capture antibody. CTCs are then detected (anti-panCK antibodies, DAPI, anti-CD45 and characterized (anti-AXL antibody) by immunofluorescence (IF).
EPIDROP It requires the use of EDTA tubes. This technique is based on a method of negative enrichment of CTCs from total blood using a cocktail of tetrameric antibodies to eliminate unwanted blood cells and to preserve only purified tumor cells (RosetteSep - StemCell Technology).Then, cells are loaded in a microfluidic chip. The detection and characterization is done by IF to the single cell in micro-droplets.
Interventions
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Detection of circulating tumor cells expressing Axl: CTC-AXL(+)
Detection of CTC-AXL(+) using 2 techniques:
* CellSearch®, FDA-USA approved technology
* EPIDROP System
CellSearch® (Menarini Company) The current gold-standard CellSearch® technique requires the use of CellSave tubes. This technique allows the isolation of fixed CTCs. This technique uses a positive (CellSearch® Epithelial Cell Kit) enrichment method from total blood using magnetic beads coupled to an EpCAM capture antibody. CTCs are then detected (anti-panCK antibodies, DAPI, anti-CD45 and characterized (anti-AXL antibody) by immunofluorescence (IF).
EPIDROP It requires the use of EDTA tubes. This technique is based on a method of negative enrichment of CTCs from total blood using a cocktail of tetrameric antibodies to eliminate unwanted blood cells and to preserve only purified tumor cells (RosetteSep - StemCell Technology).Then, cells are loaded in a microfluidic chip. The detection and characterization is done by IF to the single cell in micro-droplets.
Intervention Type
OTHER
Eligibility Criteria
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Inclusion Criteria
* The patient is at least 18 years old;
* Patients with pancreatic cancer with remote metastases, naïve of any treatment, that is, eligible for a first line of treatment;
* Patients with oral consent
* Patients with pancreatic cancer with remote metastases, naïve of any treatment, that is, eligible for a first line of treatment;
* Patients with oral consent
Exclusion Criteria
* Non-affiliation or non-beneficiary of a Social Security regimen;
* Frailty persons according to Article L1121-6 of the CSP;
* Adult protected or unable to give consent as per Article L1121-8 of the CPMP;
* Pregnant or lactating women as per MSC L1121-5.
* Not included for monitoring difficulties (mutation, insufficient motivation, predictable poor compliance, priority associated pathology in care, etc.)
* Frailty persons according to Article L1121-6 of the CSP;
* Adult protected or unable to give consent as per Article L1121-8 of the CPMP;
* Pregnant or lactating women as per MSC L1121-5.
* Not included for monitoring difficulties (mutation, insufficient motivation, predictable poor compliance, priority associated pathology in care, etc.)
Minimum Eligible Age
18 Years
Eligible Sex
ALL
Accepts Healthy Volunteers
No
Sponsors
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University Hospital, Montpellier
OTHER
Sponsor Role
lead
Responsible Party
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Responsibility Role
SPONSOR
Principal Investigators
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Catherine Alix-Panabières, PhD
Role: PRINCIPAL_INVESTIGATOR
University Hospital, Montpellier
Locations
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CHU Montpellier
Montpellier, , France
Site Status
RECRUITING
Countries
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France
Central Contacts
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Facility Contacts
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Thomas Bardol, MD
Role: primary
References
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Pantel K, Alix-Panabieres C. Tumour microenvironment: informing on minimal residual disease in solid tumours. Nat Rev Clin Oncol. 2017 Jun;14(6):325-326. doi: 10.1038/nrclinonc.2017.53. Epub 2017 Apr 11. No abstract available.
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BACKGROUND
Alix-Panabieres C. The future of liquid biopsy. Nature. 2020 Mar;579(7800):S9. doi: 10.1038/d41586-020-00844-5. No abstract available.
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BACKGROUND
Koorstra JB, Karikari CA, Feldmann G, Bisht S, Rojas PL, Offerhaus GJ, Alvarez H, Maitra A. The Axl receptor tyrosine kinase confers an adverse prognostic influence in pancreatic cancer and represents a new therapeutic target. Cancer Biol Ther. 2009 Apr;8(7):618-26. doi: 10.4161/cbt.8.7.7923. Epub 2009 Apr 22.
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BACKGROUND
Leconet W, Larbouret C, Chardes T, Thomas G, Neiveyans M, Busson M, Jarlier M, Radosevic-Robin N, Pugniere M, Bernex F, Penault-Llorca F, Pasquet JM, Pelegrin A, Robert B. Preclinical validation of AXL receptor as a target for antibody-based pancreatic cancer immunotherapy. Oncogene. 2014 Nov 20;33(47):5405-14. doi: 10.1038/onc.2013.487. Epub 2013 Nov 18.
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BACKGROUND
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BACKGROUND
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BACKGROUND
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BACKGROUND
Li Y, Ye X, Tan C, Hongo JA, Zha J, Liu J, Kallop D, Ludlam MJ, Pei L. Axl as a potential therapeutic target in cancer: role of Axl in tumor growth, metastasis and angiogenesis. Oncogene. 2009 Oct 1;28(39):3442-55. doi: 10.1038/onc.2009.212. Epub 2009 Jul 27.
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BACKGROUND
Rankin EB, Fuh KC, Taylor TE, Krieg AJ, Musser M, Yuan J, Wei K, Kuo CJ, Longacre TA, Giaccia AJ. AXL is an essential factor and therapeutic target for metastatic ovarian cancer. Cancer Res. 2010 Oct 1;70(19):7570-9. doi: 10.1158/0008-5472.CAN-10-1267. Epub 2010 Sep 21.
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BACKGROUND
Ye X, Li Y, Stawicki S, Couto S, Eastham-Anderson J, Kallop D, Weimer R, Wu Y, Pei L. An anti-Axl monoclonal antibody attenuates xenograft tumor growth and enhances the effect of multiple anticancer therapies. Oncogene. 2010 Sep 23;29(38):5254-64. doi: 10.1038/onc.2010.268. Epub 2010 Jul 5.
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BACKGROUND
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BACKGROUND
Wilson C, Ye X, Pham T, Lin E, Chan S, McNamara E, Neve RM, Belmont L, Koeppen H, Yauch RL, Ashkenazi A, Settleman J. AXL inhibition sensitizes mesenchymal cancer cells to antimitotic drugs. Cancer Res. 2014 Oct 15;74(20):5878-90. doi: 10.1158/0008-5472.CAN-14-1009. Epub 2014 Aug 14.
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BACKGROUND
Feneyrolles C, Spenlinhauer A, Guiet L, Fauvel B, Dayde-Cazals B, Warnault P, Cheve G, Yasri A. Axl kinase as a key target for oncology: focus on small molecule inhibitors. Mol Cancer Ther. 2014 Sep;13(9):2141-8. doi: 10.1158/1535-7163.MCT-13-1083. Epub 2014 Aug 19.
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BACKGROUND
Gjerdrum C, Tiron C, Hoiby T, Stefansson I, Haugen H, Sandal T, Collett K, Li S, McCormack E, Gjertsen BT, Micklem DR, Akslen LA, Glackin C, Lorens JB. Axl is an essential epithelial-to-mesenchymal transition-induced regulator of breast cancer metastasis and patient survival. Proc Natl Acad Sci U S A. 2010 Jan 19;107(3):1124-9. doi: 10.1073/pnas.0909333107. Epub 2009 Dec 28.
Reference Type
BACKGROUND
Song X, Wang H, Logsdon CD, Rashid A, Fleming JB, Abbruzzese JL, Gomez HF, Evans DB, Wang H. Overexpression of receptor tyrosine kinase Axl promotes tumor cell invasion and survival in pancreatic ductal adenocarcinoma. Cancer. 2011 Feb 15;117(4):734-43. doi: 10.1002/cncr.25483. Epub 2010 Oct 4.
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BACKGROUND
Zhang S, Xu XS, Yang JX, Guo JH, Chao TF, Tong Y. The prognostic role of Gas6/Axl axis in solid malignancies: a meta-analysis and literature review. Onco Targets Ther. 2018 Jan 23;11:509-519. doi: 10.2147/OTT.S150952. eCollection 2018.
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BACKGROUND
Yu W, Ge X, Lai X, Lv J, Wang Y. The up-regulation of Axl is associated with a poor prognosis and promotes proliferation in pancreatic ductal adenocarcinoma. Int J Clin Exp Pathol. 2019 May 1;12(5):1626-1633. eCollection 2019.
Reference Type
BACKGROUND
Jacot W, Mazel M, Mollevi C, Pouderoux S, D'Hondt V, Cayrefourcq L, Bourgier C, Boissiere-Michot F, Berrabah F, Lopez-Crapez E, Bidard FC, Viala M, Maudelonde T, Guiu S, Alix-Panabieres C. Clinical Correlations of Programmed Cell Death Ligand 1 Status in Liquid and Standard Biopsies in Breast Cancer. Clin Chem. 2020 Aug 1;66(8):1093-1101. doi: 10.1093/clinchem/hvaa121.
Reference Type
BACKGROUND
Sinoquet L, Jacot W, Gauthier L, Pouderoux S, Viala M, Cayrefourcq L, Quantin X, Alix-Panabieres C. Programmed Cell Death Ligand 1-Expressing Circulating Tumor Cells: A New Prognostic Biomarker in Non-Small Cell Lung Cancer. Clin Chem. 2021 Nov 1;67(11):1503-1512. doi: 10.1093/clinchem/hvab131.
Reference Type
BACKGROUND
Alix-Panabieres C, Pantel K. Liquid Biopsy: From Discovery to Clinical Application. Cancer Discov. 2021 Apr;11(4):858-873. doi: 10.1158/2159-8290.CD-20-1311.
Reference Type
BACKGROUND
Other Identifiers
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RECHMPL22_0024
Identifier Type: -
Identifier Source: org_study_id
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