Breast CancerCCB-RTNCT04002570
Adjuvant Radiotherapy on Circulating Cells in Breast Cancer Patients
An observational study of Breast Cancer, run by Clinica Luganese Moncucco at 1 site in Switzerland.
Trial summary
Radiation applied to the preserved breast during radiotherapy treatment activates numerous molecular cascades in tumor bed adjacent cells causing an inflammatory state. During this process, pre-clinical studies demonstrated CD11b + and CD11b+cKit+cells mobilization in the blood. Read more about this study
- Who is it for?
- Ages 18 to 75 years, women only
- Conditions the study is for
- Breast Cancer
- What is being tested?
- blood samples collection
- How many people
- 13 participants
- Where
- 1 siteSwitzerland
- Study dates
- 25 Oct 2015to 30 Dec 2020
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- Women only
- Adult, Older adult
Study population: patients performing treatments for breast cancer
Who may be able to join
- breast cancer diagnosis bioptically proven with pre-operative clinical stage cT1-4, N0-1, M0;
- patients who are candidates for conservative surgery (tumorectomy / quadrantectomy +/- lymphadenectomy or sentinel lymph node) or patients already undergoing conservative surgery;
- patients who are candidates for an adjuvant mammary radiotherapy treatment +/- adjuvant or neoadjuvant chemotherapy due to a triple negative or a high ki67 value that has indicated it;
- understanding of the Italian language for the Coordinating Center, understanding of the French language for the satellite center.
Who cannot join
- previous mastectomy surgery;
- concomitant cancer diseases;
- previous chemo / radiotherapy treatments in the last three years.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effects of Adjuvant Radiotherapy on Bone-marrow Derived and Immune Cells in Breast Cancer Patients
Radiation applied to the preserved breast during radiotherapy treatment activates numerous molecular cascades in tumor bed adjacent cells causing an inflammatory state. During this process, pre-clinical studies demonstrated CD11b + and CD11b+cKit+cells mobilization in the blood. These cells are involved in numerous processes during tumor progression/control and metastases development. The expected results in clinical setting allow us to investigate the development of innovative therapeutic and monitoring strategies. The clinical repercussions would consist in identifying new predictive and prognostic targets in breast cancer.
Read the detailed description
Every year, around one million women are newly diagnosed with breast cancer. Early screening and adjuvant treatments with curative intent such as radiotherapy, hormone therapy, chemotherapy, immunotherapy, have reduced the incidence of breast cancer specific mortality. Despite this, breast cancer remains the main cause of cancer mortality in Europe. The primary cause is due to metastases development in different organs, such as lung, liver, bones and brain. A significant decrease in mortality in breast cancer patients is likely to be achieved by preventing the formation of metastases or by implementing the efficacy of their treatment. Radiotherapy is one of the pillars of breast cancer adjuvant treatments with important survival benefits.
Mutual and dynamic communications between tumor cells and the tumor microenvironment (TME) influence the development and evolution of the tumor as well as the appearance of distant metastases. The mediators of the immune and inflammatory response that constitute TME, as well as mediators of tumor progression, are also considered "targets" of future therapeutic strategies.
Radiation applied to the preserved breast during radiotherapy treatment activates numerous molecular cascades in tumor bed adjacent cells causing an inflammatory state. During this process, pre-clinical studies demonstrated CD11b + and CD11b+cKit+cells mobilization in the blood. These cells are involved in numerous processes during tumor progression/control and metastases development. The results allow us to investigate the development of innovative therapeutic and monitoring strategies. The clinical repercussions would consist in identifying new predictive and prognostic targets in breast cancer.
- Conditions
- Breast Cancer
- Being tested
- blood samples collection
- Keywords
- breast cancer, circulating bone marrow-derived cells, circulating immune cells, radiotherapy, conservative treatment, disease control
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
blood samples collectionOther
blood samples collection are performed at 4 different timepoints: preop, pre rt, week 6 rt, week 12-14 (fu) for GROUP I and GROUP II; blood samples collection are performed at 3 different timepoints: pre rt, week 6 rt, week 12-14 (fu) for GROUP I bis; blood samples collection are performed just once for control GROUP.
| Study group | Role | What they receive |
|---|---|---|
| GROUP I/GROUP I bis | 20 breast cancer patients who performed radiotherapy treatment Receives: Other: blood samples collection | |
| GROUP II | maximum 10 patients who performed radiotherapy and chemotherapy and/or immunotherapy and/or neo-adjuvant hormone therapy or/and adjuvant immunotherapy/hormone therapy. Receives: Other: blood samples collection | |
| CONTROLS GROUP | healthy women with +/- 5 years compared to breast cancer patients age Receives: Other: blood samples collection |
What is being measured
The primary outcome is the main question the study is designed to answer.
the frequency of CD11b⁺cKit⁺ cells in peripheral blood and/or gene expression in circulating CD11b⁺ cells
validate the hypothesis that adjuvant radiotherapy in breast cancer modulates the frequency of CD11b⁺cKit⁺ cells in peripheral blood and / or gene expression in circulating CD11b⁺ cells, evaluating their trend at different time points compared to radiotherapy treatment.
Measured: pre surgery
the frequency of CD11b⁺cKit⁺ cells in peripheral blood and/or gene expression in circulating CD11b⁺ cells
validate the hypothesis that adjuvant radiotherapy in breast cancer modulates the frequency of CD11b⁺cKit⁺ cells in peripheral blood and / or gene expression in circulating CD11b⁺ cells, evaluating their trend at different time points compared to radiotherapy treatment.
Measured: pre radiotherapy
the frequency of CD11b⁺cKit⁺ cells in peripheral blood and/or gene expression in circulating CD11b⁺ cells
validate the hypothesis that adjuvant radiotherapy in breast cancer modulates the frequency of CD11b⁺cKit⁺ cells in peripheral blood and / or gene expression in circulating CD11b⁺ cells, evaluating their trend at different time points compared to radiotherapy treatment.
Measured: week 6 of radiotherapy
Secondary outcomes (1)
radiotherapy alters in a potentially predictive way the frequency of CD11b⁺cKit⁺ cells in peripheral blood
validate the hypothesis that adjuvant radiotherapy alters in a potentially predictive way the frequency of CD11b⁺cKit⁺ cells in peripheral blood and / or gene expression in circulating CD11b⁺ cells.
Measured: week 12-14 (fu)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Jun 2019
- Study start25 Oct 2015
- Primary completion15 Sep 2020
- Study completion30 Dec 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (16)Papers the sponsor has linked to this study.
- Other trials for Breast CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 13 participants (actual)
Sponsor and investigators
- Lead sponsor
- Clinica Luganese Moncucco
- Sponsor type
- University, hospital or other
- Collaborators
- University of Fribourg, Swiss National Science Foundation, Tsoutsou Pelagia MD, Head of Radation Therapy Department
- Responsible party
- Principal investigator, Alessandra Franzetti Pellanda, Clinica Luganese Moncucco
- Investigators
- Alessandra Franzetti Pellanda, MD, Principal investigator, Clinica Luganese Moncucco
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04002570
- Sponsor's protocol ID
- CirculatingCellsBreast-RT
- Acronym
- CCB-RT
- Status last verified
- Apr 2021
- First submitted
- 25 Jun 2019
- Last updated
- 27 Apr 2021
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Ruegg CR, Chiquet-Ehrismann R, Alkan SS. Tenascin, an extracellular matrix protein, exerts immunomodulatory activities. Proc Natl Acad Sci U S A. 1989 Oct;86(19):7437-41. doi: 10.1073/pnas.86.19.7437.
PubMed 2477841Lorusso G, Ruegg C. The tumor microenvironment and its contribution to tumor evolution toward metastasis. Histochem Cell Biol. 2008 Dec;130(6):1091-103. doi: 10.1007/s00418-008-0530-8. Epub 2008 Nov 6.
PubMed 18987874Hanahan D, Coussens LM. Accessories to the crime: functions of cells recruited to the tumor microenvironment. Cancer Cell. 2012 Mar 20;21(3):309-22. doi: 10.1016/j.ccr.2012.02.022.
PubMed 22439926Coussens LM, Werb Z. Inflammation and cancer. Nature. 2002 Dec 19-26;420(6917):860-7. doi: 10.1038/nature01322.
PubMed 12490959Schlaeppi M, Ruegg C, Tran-Thang C, Chapuis G, Tevaearai H, Lahm H, Sordat B. Role of integrins and evidence for two distinct mechanisms mediating human colorectal carcinoma cell interaction with peritoneal mesothelial cells and extracellular matrix. Cell Adhes Commun. 1997 Mar;4(6):439-55. doi: 10.3109/15419069709004460.
PubMed 9177905Boylan AM, Ruegg C, Kim KJ, Hebert CA, Hoeffel JM, Pytela R, Sheppard D, Goldstein IM, Broaddus VC. Evidence of a role for mesothelial cell-derived interleukin 8 in the pathogenesis of asbestos-induced pleurisy in rabbits. J Clin Invest. 1992 Apr;89(4):1257-67. doi: 10.1172/JCI115710.
PubMed 1556187Ruegg C, Pytela R, Erle DJ. Characterization of the leukocyte integrin subunit beta 7. Chest. 1993 Feb;103(2 Suppl):86S. doi: 10.1378/chest.103.2_supplement.86s. No abstract available.
PubMed 8428547Sharma P, Sahni NS, Tibshirani R, Skaane P, Urdal P, Berghagen H, Jensen M, Kristiansen L, Moen C, Sharma P, Zaka A, Arnes J, Sauer T, Akslen LA, Schlichting E, Borresen-Dale AL, Lonneborg A. Early detection of breast cancer based on gene-expression patterns in peripheral blood cells. Breast Cancer Res. 2005;7(5):R634-44. doi: 10.1186/bcr1203. Epub 2005 Jun 14.
PubMed 16168108Kuonen F, Secondini C, Ruegg C. Molecular pathways: emerging pathways mediating growth, invasion, and metastasis of tumors progressing in an irradiated microenvironment. Clin Cancer Res. 2012 Oct 1;18(19):5196-202. doi: 10.1158/1078-0432.CCR-11-1758. Epub 2012 Jun 22.
PubMed 22730447Drooger JC, Hooning MJ, Seynaeve CM, Baaijens MH, Obdeijn IM, Sleijfer S, Jager A. Diagnostic and therapeutic ionizing radiation and the risk of a first and second primary breast cancer, with special attention for BRCA1 and BRCA2 mutation carriers: a critical review of the literature. Cancer Treat Rev. 2015 Feb;41(2):187-96. doi: 10.1016/j.ctrv.2014.12.002. Epub 2014 Dec 8.
PubMed 25533736Ruegg C, Yilmaz A, Bieler G, Bamat J, Chaubert P, Lejeune FJ. Evidence for the involvement of endothelial cell integrin alphaVbeta3 in the disruption of the tumor vasculature induced by TNF and IFN-gamma. Nat Med. 1998 Apr;4(4):408-14. doi: 10.1038/nm0498-408.
PubMed 9546785Han M, Liew CT, Zhang HW, Chao S, Zheng R, Yip KT, Song ZY, Li HM, Geng XP, Zhu LX, Lin JJ, Marshall KW, Liew CC. Novel blood-based, five-gene biomarker set for the detection of colorectal cancer. Clin Cancer Res. 2008 Jan 15;14(2):455-60. doi: 10.1158/1078-0432.CCR-07-1801. Epub 2008 Jan 18.
PubMed 18203981Coates AS, Winer EP, Goldhirsch A, Gelber RD, Gnant M, Piccart-Gebhart M, Thurlimann B, Senn HJ; Panel Members. Tailoring therapies--improving the management of early breast cancer: St Gallen International Expert Consensus on the Primary Therapy of Early Breast Cancer 2015. Ann Oncol. 2015 Aug;26(8):1533-46. doi: 10.1093/annonc/mdv221. Epub 2015 May 4.
PubMed 25939896Directive 2001/20/EC of the European Parliament and of the Council of 4 April 2001 on the approximation of the laws, regulations and administrative provisions of the member states relating to the implementation of good clinical practice in the conduct of clinical trials on medicinal products for human use. Med Etika Bioet. 2002 Spring-Summer;9(1-2):12-9. No abstract available.
PubMed 16276663Dixon JR Jr. The International Conference on Harmonization Good Clinical Practice guideline. Qual Assur. 1998 Apr-Jun;6(2):65-74. doi: 10.1080/105294199277860.
PubMed 10386329
Study at a glance
From the registry record, last updated by the sponsor on 27 Apr 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Adjuvant Radiotherapy on Bone-marrow Derived and Immune Cells in Breast Cancer Patients
- ClinicalTrials.gov ID
- NCT04002570
- Acronym / sponsor ID
- CCB-RT / CirculatingCellsBreast-RT
- Conditions
- Breast Cancer
- Keywords
- breast cancer, circulating bone marrow-derived cells, circulating immune cells, radiotherapy, conservative treatment, disease control
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 13 participants (actual)
- Lead sponsor
- Clinica Luganese MoncuccoUniversity, hospital or other
- Collaborators
- University of Fribourg, Swiss National Science Foundation, Tsoutsou Pelagia MD, Head of Radation Therapy Department
- Study start
- 25 Oct 2015 (actual)
- Primary completion
- 15 Sep 2020 (actual)
- Study completion
- 30 Dec 2020 (actual)
- First posted
- 28 Jun 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Radiation applied to the preserved breast during radiotherapy treatment activates numerous molecular cascades in tumor bed adjacent cells causing an inflammatory state. During this process, pre-clinical studies demonstrated CD11b + and CD11b+cKit+cells mobilization in the blood. These cells are involved in numerous processes during tumor progression/control and metastases development. The expected results in clinical setting allow us to investigate the development of innovative therapeutic and monitoring strategies. The clinical repercussions would consist in identifying new predictive and prognostic targets in breast cancer.
Detailed description
Every year, around one million women are newly diagnosed with breast cancer. Early screening and adjuvant treatments with curative intent such as radiotherapy, hormone therapy, chemotherapy, immunotherapy, have reduced the incidence of breast cancer specific mortality. Despite this, breast cancer remains the main cause of cancer mortality in Europe. The primary cause is due to metastases development in different organs, such as lung, liver, bones and brain. A significant decrease in mortality in breast cancer patients is likely to be achieved by preventing the formation of metastases or by implementing the efficacy of their treatment. Radiotherapy is one of the pillars of breast cancer adjuvant treatments with important survival benefits.
Mutual and dynamic communications between tumor cells and the tumor microenvironment (TME) influence the development and evolution of the tumor as well as the appearance of distant metastases. The mediators of the immune and inflammatory response that constitute TME, as well as mediators of tumor progression, are also considered "targets" of future therapeutic strategies.
Radiation applied to the preserved breast during radiotherapy treatment activates numerous molecular cascades in tumor bed adjacent cells causing an inflammatory state. During this process, pre-clinical studies demonstrated CD11b + and CD11b+cKit+cells mobilization in the blood. These cells are involved in numerous processes during tumor progression/control and metastases development. The results allow us to investigate the development of innovative therapeutic and monitoring strategies. The clinical repercussions would consist in identifying new predictive and prognostic targets in breast cancer.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| GROUP I/GROUP I bis | – | Other: blood samples collection20 breast cancer patients who performed radiotherapy treatment |
| GROUP II | – | Other: blood samples collectionmaximum 10 patients who performed radiotherapy and chemotherapy and/or immunotherapy and/or neo-adjuvant hormone therapy or/and adjuvant immunotherapy/hormone therapy. |
| CONTROLS GROUP | – | Other: blood samples collectionhealthy women with +/- 5 years compared to breast cancer patients age |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- Female only
- Age groups
- Adult, Older adult
- Study population
- patients performing treatments for breast cancer
Key inclusion criteria (4 listed)
- breast cancer diagnosis bioptically proven with pre-operative clinical stage cT1-4, N0-1, M0;
- patients who are candidates for conservative surgery (tumorectomy / quadrantectomy +/- lymphadenectomy or sentinel lymph node) or patients already undergoing conservative surgery;
- patients who are candidates for an adjuvant mammary radiotherapy treatment +/- adjuvant or neoadjuvant chemotherapy due to a triple negative or a high ki67 value that has indicated it;
- understanding of the Italian language for the Coordinating Center, understanding of the French language for the satellite center.
Key exclusion criteria (3 listed)
- previous mastectomy surgery;
- concomitant cancer diseases;
- previous chemo / radiotherapy treatments in the last three years.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| blood samples collectionblood samples collection are performed at 4 different timepoints: preop, pre rt, week 6 rt, week 12-14 (fu) for GROUP I and GROUP II; blood samples collection are performed at 3 different timepoints: pre rt, week 6 rt, week 12-14 (fu) for GROUP I bis; blood samples collection are performed just once for control GROUP. | Other | CONTROLS GROUP, GROUP I/GROUP I bis, GROUP II |
Primary outcome
the frequency of CD11b⁺cKit⁺ cells in peripheral blood and/or gene expression in circulating CD11b⁺ cells
Time frame: pre surgery
validate the hypothesis that adjuvant radiotherapy in breast cancer modulates the frequency of CD11b⁺cKit⁺ cells in peripheral blood and / or gene expression in circulating CD11b⁺ cells, evaluating their trend at different time points compared to radiotherapy treatment.
the frequency of CD11b⁺cKit⁺ cells in peripheral blood and/or gene expression in circulating CD11b⁺ cells
Time frame: pre radiotherapy
validate the hypothesis that adjuvant radiotherapy in breast cancer modulates the frequency of CD11b⁺cKit⁺ cells in peripheral blood and / or gene expression in circulating CD11b⁺ cells, evaluating their trend at different time points compared to radiotherapy treatment.
the frequency of CD11b⁺cKit⁺ cells in peripheral blood and/or gene expression in circulating CD11b⁺ cells
Time frame: week 6 of radiotherapy
validate the hypothesis that adjuvant radiotherapy in breast cancer modulates the frequency of CD11b⁺cKit⁺ cells in peripheral blood and / or gene expression in circulating CD11b⁺ cells, evaluating their trend at different time points compared to radiotherapy treatment.
1 secondary outcome
radiotherapy alters in a potentially predictive way the frequency of CD11b⁺cKit⁺ cells in peripheral blood
Time frame: week 12-14 (fu)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Apr 2021.
- Background: PubMed 2477841Ruegg CR, Chiquet-Ehrismann R, Alkan SS. Tenascin, an extracellular matrix protein, exerts immunomodulatory activities. Proc Natl Acad Sci U S A. 1989 Oct;86(19):7437-41. doi: 10.1073/pnas.86.19.7437.
- Background: PubMed 18987874Lorusso G, Ruegg C. The tumor microenvironment and its contribution to tumor evolution toward metastasis. Histochem Cell Biol. 2008 Dec;130(6):1091-103. doi: 10.1007/s00418-008-0530-8. Epub 2008 Nov 6.
- Background: PubMed 22439926Hanahan D, Coussens LM. Accessories to the crime: functions of cells recruited to the tumor microenvironment. Cancer Cell. 2012 Mar 20;21(3):309-22. doi: 10.1016/j.ccr.2012.02.022.
- Background: PubMed 12490959Coussens LM, Werb Z. Inflammation and cancer. Nature. 2002 Dec 19-26;420(6917):860-7. doi: 10.1038/nature01322.
- Background: PubMed 9177905Schlaeppi M, Ruegg C, Tran-Thang C, Chapuis G, Tevaearai H, Lahm H, Sordat B. Role of integrins and evidence for two distinct mechanisms mediating human colorectal carcinoma cell interaction with peritoneal mesothelial cells and extracellular matrix. Cell Adhes Commun. 1997 Mar;4(6):439-55. doi: 10.3109/15419069709004460.
- Background: PubMed 1556187Boylan AM, Ruegg C, Kim KJ, Hebert CA, Hoeffel JM, Pytela R, Sheppard D, Goldstein IM, Broaddus VC. Evidence of a role for mesothelial cell-derived interleukin 8 in the pathogenesis of asbestos-induced pleurisy in rabbits. J Clin Invest. 1992 Apr;89(4):1257-67. doi: 10.1172/JCI115710.
- Background: PubMed 8428547Ruegg C, Pytela R, Erle DJ. Characterization of the leukocyte integrin subunit beta 7. Chest. 1993 Feb;103(2 Suppl):86S. doi: 10.1378/chest.103.2_supplement.86s. No abstract available.
- Background: PubMed 16168108Sharma P, Sahni NS, Tibshirani R, Skaane P, Urdal P, Berghagen H, Jensen M, Kristiansen L, Moen C, Sharma P, Zaka A, Arnes J, Sauer T, Akslen LA, Schlichting E, Borresen-Dale AL, Lonneborg A. Early detection of breast cancer based on gene-expression patterns in peripheral blood cells. Breast Cancer Res. 2005;7(5):R634-44. doi: 10.1186/bcr1203. Epub 2005 Jun 14.
- Background: PubMed 22730447Kuonen F, Secondini C, Ruegg C. Molecular pathways: emerging pathways mediating growth, invasion, and metastasis of tumors progressing in an irradiated microenvironment. Clin Cancer Res. 2012 Oct 1;18(19):5196-202. doi: 10.1158/1078-0432.CCR-11-1758. Epub 2012 Jun 22.
- Background: PubMed 25533736Drooger JC, Hooning MJ, Seynaeve CM, Baaijens MH, Obdeijn IM, Sleijfer S, Jager A. Diagnostic and therapeutic ionizing radiation and the risk of a first and second primary breast cancer, with special attention for BRCA1 and BRCA2 mutation carriers: a critical review of the literature. Cancer Treat Rev. 2015 Feb;41(2):187-96. doi: 10.1016/j.ctrv.2014.12.002. Epub 2014 Dec 8.
- Background: PubMed 9546785Ruegg C, Yilmaz A, Bieler G, Bamat J, Chaubert P, Lejeune FJ. Evidence for the involvement of endothelial cell integrin alphaVbeta3 in the disruption of the tumor vasculature induced by TNF and IFN-gamma. Nat Med. 1998 Apr;4(4):408-14. doi: 10.1038/nm0498-408.
- Background: PubMed 18203981Han M, Liew CT, Zhang HW, Chao S, Zheng R, Yip KT, Song ZY, Li HM, Geng XP, Zhu LX, Lin JJ, Marshall KW, Liew CC. Novel blood-based, five-gene biomarker set for the detection of colorectal cancer. Clin Cancer Res. 2008 Jan 15;14(2):455-60. doi: 10.1158/1078-0432.CCR-07-1801. Epub 2008 Jan 18.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Alessandra Franzetti Pellanda, MD principal investigator
Clinica Luganese Moncucco
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Breast Cancer, run by Clinica Luganese Moncucco at 1 site in Switzerland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 27 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
the frequency of CD11b⁺cKit⁺ cells in peripheral blood and/or gene expression in circulating CD11b⁺ cells (time frame: pre surgery). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04002570, which also lists 16 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Apr 2021.