Ignite Creation Date:
2024-05-06 @ 9:52 AM
Last Modification Date:
2024-10-26 @ 12:21 PM
Study NCT ID:
NCT03097601
Status:
COMPLETED
Last Update Posted:
2020-07-21
First Post:
2017-03-27
Brief Title:
ELRCXCL Cytokines in Metastatic Kidney Cancers Predictive Markers of Resistance to Sunitinib
Sponsor:
Centre Antoine Lacassagne
Organization:
Centre Antoine Lacassagne
Study Overview
Official Title:
ELRCXCL Cytokines in Metastatic Kidney Cancers Predictive Markers of Resistance to Sunitinib and New Relevant Therapeutic Targets in Refractory Patients
Status:
COMPLETED
Status Verified Date:
2020-07
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
SUNITRES
Brief Summary:
Metastatic renal cell carcinomas mRCC are highly angiogenic tumors because of mutation of the pVHL gene leading to over-expression of VEGF Therefore mRCC represent a paradigm for the use of anti-angiogenic treatments targeting the VEGFVEGFR pathway Despite an increase of the time to progression these treatments taken alone are not curative with ineluctable progression especially for the reference treatment sunitinib a multi kinase inhibitors of VEGF PDGF CSF1 receptors and c-kit FLT3 and RET At progression on sunitinib patients received mTOR inhibitors which is responsible at least of HIF1A mRNA translation then on a third line sorafenib that inhibits VEGFR2 3 PDGFR c-KIT and B-RAF The access to these different lines of treatment has finally prolonged survival but this situation is not satisfactory Unexpected aspect associated with the use of anti-angiogenesis treatments was the diversity of the patients response Some patients are right away refractory and die rapidly but the majority of patient has a transient response then progress and a few percentages of them are responder for a very long period of time By only targeting normal endothelial cells and tumor neo-vascularization the response should have been more homogenous thus highlighting that the treatment induced a Darwinian adaptation of tumor cells and cells of the microenvironment Two conclusions follow from these observations 1- The need to identify predictive markers of efficacy 2-The identification of druggable targets participating in progression on anti-angiogenic treatments Our results have highlighted the ELRCXCL cytokines pro-inflammatory and pro-angiogenic cytokines as prognosis markers of survival of mRCC patients and relevant therapeutic targets on experimental tumors in mice As VEGFVEGFR these cytokines are produced by tumor endothelial and inflammatory cells Their receptors CXCR1 2 are expressed physiologically by immune and endothelial cells and aberrantly by tumor cells generating at the same time autocrine proliferation loops chronic angiogenesis and inflammation Therefore the CXCLCXCR12 axis constitutes an independent axis of cancer development and propagation However the current standard of care is to administer anti-angiogenic therapies as the first line treatment The objective of this project is linked to the identification of potent predictive markers of efficacy easily measured in plasma samples Deciphering the molecular mechanisms associated with the production of such cytokines by tumor cells and by cells of the microenvironment represents an interesting intellectual challenge and a relevant way to improve the current treatments by targeting at progression on the current standard of care other pathways than the VEGFVEGFR axis
Detailed Description:
Metastatic renal cell carcinomas mRCC are highly angiogenic tumors because of mutation of the pVHL gene leading to over-expression of VEGF Therefore mRCC represents a paradigm for the use of anti-angiogenic treatments targeting the VEGFVEGFR pathway Despite an increase of the time to progression these treatments administered alone are not curative with ineluctable progression especially for the reference treatment sunitinib a multi kinase inhibitors of VEGF PDGF CSF1 receptors and c-kit FLT3 At progression with sunitinib treatment patients received mTOR inhibitors which is responsible at least of HIF1A mRNA translation then through a third line sorafenib that inhibits VEGFR2 3 PDGFR c-KIT and B-RAF The access to these different lines of treatment has finally prolonged survival but this situation is not satisfactory New way of thinking and new therapeutic targets are necessary to chronisize the pathology or even to cure it The current therapeutic practises are based on the statement that the treatments must destroy blood vessels to asphyxiate the tumors and that endothelial cells are normal cells that cannot adapt to the selection pressure exerted by the treatments These statements arewrong since tumor cells aberrantly express the receptors targeted by anti-angiogenic drugs leading to cell adaptation and tumor recurrence Another unexpected aspect associated with the use of anti-angiogenesis treatments was the diversity of the patientsresponse Some patients are right away refractory and die rapidly but the majority of patients has a transient response then progress and a few percentages of them are responders for a very long period By only targeting normal endothelial cells and tumor neo-vascularization the response should have been more homogenous 3 conclusions follow from these observations 1- The need to identify predictive markers of efficacy 2-The identification of druggable targets participating in progression on anti-angiogenic treatments 3- These targets should be independent of the VEGFVEGFR axis
The results have highlighted the ELRCXCL cytokines pro-inflammatory and pro-angiogenic cytokines as prognosis markers of survival of mRCC patients and relevant therapeutic targets on experimental tumors in mice As VEGFVEGFR these cytokines are produced by tumor endothelial and inflammatory cells Their receptors CXCR1 2 are expressed physiologically by immune and endothelial cells and aberrantly by tumor cells generating at the same time autocrine proliferation loops chronic angiogenesis and inflammation Therefore the CXCLCXCR12 axis constitutes an independent axis of cancer development and propagation However the current standard of care is to administer anti-angiogenic therapies as the first line treatment Hence what is the relevance of CXCL cytokines as predictive markers of sunitinib efficacy and what are the mechanisms linked to the production of CXCL cytokines by mRCC or in response to treatments Deciphering the molecular mechanisms associated with the production of such cytokines by tumor cells and by cells of the microenvironment represents an interesting intellectual challenge and a relevant way to improve the current treatments by targeting at progression on the current standard of care other pathways than the VEGFVEGFR axis
This project aimed at the improvement of current clinical practises for mRCC Numerous efforts have been given to the determination of prognosis markers for different tumors including mRCC However for clinical practises physicians are more interested to predictive markers of successfailure of a treatment that to biological prognosis markers that are most of the time as indicative as classical clinical parameters TNM for example The recent experiments have highlighted relevant cytokines ELRCXCL participating in the aggressiveness of mRCC Indeed the intra-tumor amounts of the ELRCXCL cytokine CXCL7 was a potent prognosis marker of survival independent of any clinical parameters Therefore it was indicative of poor prognosis for patients who were a priori of good prognosis according to the TNM or the Fuhrman grade consideration of nuclear and nucleolus size We have also demonstrated the prognosis value of two other ELRCXCL cytokine CXCL1 CXCL5 and CXCL8 Both of them are not independent of clinical parameters However their role as predictive markers of resistance to anti-angiogenic drugs the current standard of care is still unknown
For a medical point of view a rapid identification of responders and no-responders is of first importance It will avoid undesired toxic events for unresponsive patients and a rapid adaptation of the treatment considering that different lines of therapies are currently available for mRCC patients The determination of a threshold value for the most relevant cytokines is needed and this threshold must be determined of independent cohort of patients for a better reliability Such test should not be invasive for the patients and as simple as possible in order to introduce in clinical practises for a low price that can be reimburse by the social security It is compatible with what we propose to do by measuring ELRCXCL levels on blood samples with classical ELISA tests
Deciphering the mechanisms at the origin of the de novo synthesis of redundant pro-angiogenicpro-inflammatory cytokines under the selection pressure of treatment targeting the VEGFVEGFR pathway is intellectually challenging and may identify unknown parameters implicated in Darwinian adaptation of tumor cells among a very heterogeneous environment
The main objectives are
Research helping to the understanding of biological mechanisms from clinical observations Bed to Bench and the transfer of knowledge from the clinic to the laboratories bed to bench
Research helping to the prognosis
Research helping to the therapeutic decision and treatment monitoring
The results have highlighted the ELRCXCL cytokines pro-inflammatory and pro-angiogenic cytokines as prognosis markers of survival of mRCC patients and relevant therapeutic targets on experimental tumors in mice As VEGFVEGFR these cytokines are produced by tumor endothelial and inflammatory cells Their receptors CXCR1 2 are expressed physiologically by immune and endothelial cells and aberrantly by tumor cells generating at the same time autocrine proliferation loops chronic angiogenesis and inflammation Therefore the CXCLCXCR12 axis constitutes an independent axis of cancer development and propagation However the current standard of care is to administer anti-angiogenic therapies as the first line treatment Hence what is the relevance of CXCL cytokines as predictive markers of sunitinib efficacy and what are the mechanisms linked to the production of CXCL cytokines by mRCC or in response to treatments Deciphering the molecular mechanisms associated with the production of such cytokines by tumor cells and by cells of the microenvironment represents an interesting intellectual challenge and a relevant way to improve the current treatments by targeting at progression on the current standard of care other pathways than the VEGFVEGFR axis
This project aimed at the improvement of current clinical practises for mRCC Numerous efforts have been given to the determination of prognosis markers for different tumors including mRCC However for clinical practises physicians are more interested to predictive markers of successfailure of a treatment that to biological prognosis markers that are most of the time as indicative as classical clinical parameters TNM for example The recent experiments have highlighted relevant cytokines ELRCXCL participating in the aggressiveness of mRCC Indeed the intra-tumor amounts of the ELRCXCL cytokine CXCL7 was a potent prognosis marker of survival independent of any clinical parameters Therefore it was indicative of poor prognosis for patients who were a priori of good prognosis according to the TNM or the Fuhrman grade consideration of nuclear and nucleolus size We have also demonstrated the prognosis value of two other ELRCXCL cytokine CXCL1 CXCL5 and CXCL8 Both of them are not independent of clinical parameters However their role as predictive markers of resistance to anti-angiogenic drugs the current standard of care is still unknown
For a medical point of view a rapid identification of responders and no-responders is of first importance It will avoid undesired toxic events for unresponsive patients and a rapid adaptation of the treatment considering that different lines of therapies are currently available for mRCC patients The determination of a threshold value for the most relevant cytokines is needed and this threshold must be determined of independent cohort of patients for a better reliability Such test should not be invasive for the patients and as simple as possible in order to introduce in clinical practises for a low price that can be reimburse by the social security It is compatible with what we propose to do by measuring ELRCXCL levels on blood samples with classical ELISA tests
Deciphering the mechanisms at the origin of the de novo synthesis of redundant pro-angiogenicpro-inflammatory cytokines under the selection pressure of treatment targeting the VEGFVEGFR pathway is intellectually challenging and may identify unknown parameters implicated in Darwinian adaptation of tumor cells among a very heterogeneous environment
The main objectives are
Research helping to the understanding of biological mechanisms from clinical observations Bed to Bench and the transfer of knowledge from the clinic to the laboratories bed to bench
Research helping to the prognosis
Research helping to the therapeutic decision and treatment monitoring
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None