Condition or disease | Intervention/treatment | Phase |
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Relapse Leukemia Allogeneic Stem Cell Transplantation Immune Evasion, Tumor | Biological: blood sample Biological: bone marrow sample | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 104 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Basic Science |
Official Title: | Study of the Immunoevasive Mecanisms and Especially Myeloid Suppressive Cells in the Medullar Microenvironment Employed by Myeloid Malignancy (AML and High Risk MDS) When Relapsing After Allogeneic Stem Cell Transplantation |
Estimated Study Start Date : | September 1, 2019 |
Estimated Primary Completion Date : | June 30, 2022 |
Estimated Study Completion Date : | November 1, 2022 |
Arm | Intervention/treatment |
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Experimental: immune escape mecanims
Cohort study with a representative sample of patients
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Biological: blood sample
20 ml at inclusion, and 20ml at 1, 3, 6 and 12 months after allo HSCT
Biological: bone marrow sample 3 ml at inclusion, and 3 ml at 1, 3, 6 and 12 months after allo HSCT
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To investigate the relationship between the percentage of myeloid derived suppressive cells (MDSCs) in total leukocytes in peripheral blood and the relapse incidence after allogeneic stem cell transplantation.
The patients will be grouped according to median MDSC frequency values. Relapse incidence will be compared across the two groups (low and high frequency of MDSC).
Ages Eligible for Study: | 18 Years to 71 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Contact: Maud D'AVENI, MD | +33383153289 | m.daveni-piney@chru-nancy.fr | |
Contact: Marie-Therese RUBIO, MD | +33383153282 | m.rubio@chru-nancy.fr |
Tracking Information | |||||||||
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First Submitted Date ICMJE | May 3, 2019 | ||||||||
First Posted Date ICMJE | May 28, 2019 | ||||||||
Last Update Posted Date | May 28, 2019 | ||||||||
Estimated Study Start Date ICMJE | September 1, 2019 | ||||||||
Estimated Primary Completion Date | June 30, 2022 (Final data collection date for primary outcome measure) | ||||||||
Current Primary Outcome Measures ICMJE |
Myeloid suppressive cells and relapse incidence [ Time Frame: 2 years ] To investigate the relationship between the percentage of myeloid derived suppressive cells (MDSCs) in total leukocytes in peripheral blood and the relapse incidence after allogeneic stem cell transplantation.
The patients will be grouped according to median MDSC frequency values. Relapse incidence will be compared across the two groups (low and high frequency of MDSC).
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Original Primary Outcome Measures ICMJE | Same as current | ||||||||
Change History | No Changes Posted | ||||||||
Current Secondary Outcome Measures ICMJE |
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Original Secondary Outcome Measures ICMJE | Same as current | ||||||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||||||
Descriptive Information | |||||||||
Brief Title ICMJE | Immunoevasive Tactics Employed by Myeloid Malignancy After Allogeneic Stem Cell Transplantation | ||||||||
Official Title ICMJE | Study of the Immunoevasive Mecanisms and Especially Myeloid Suppressive Cells in the Medullar Microenvironment Employed by Myeloid Malignancy (AML and High Risk MDS) When Relapsing After Allogeneic Stem Cell Transplantation | ||||||||
Brief Summary | Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is still the only treatment available to cure acute myeloid leukemia and high risk myelodysplasia. Allo-HSCT has an anti-tumor effect (called the graft versus leukemia effect= GVL) mediated by donor lymphocytes. This GVL effect is often associated with graft-versus-host disease (GVHD). Several studies have shown that the relapse incidence is lower in patients developing chronic GVHD. These studies confirm the impact of donor immune system on leukemic residual cells. In fact, the relapse incidence increased in patients with no sign of GVHD. The investigators assume that leukemic cells probably use mechanisms to inhibit the allogeneic response. These escape mechanisms to immunosurveillance have been described in other malignancies. Out of context of the allo-HSCT, in acute myeloid leukemias and myelodysplasia, correlations between the severity of the disease and the presence of regulatory T cells (Tregs) or exhausted T cells (PD1 positive) in the bone marrow and in the blood of patients were described at the time of diagnosis or relapse. Myeloid Derived Suppressive Cells (MDSCs) have been described as capable of inducing Tregs and exhausted T cells in the tumor microenvironment.The investigators want to evaluate the role of myeloid suppressive cells in bone marrow after allo HSCT. They hypothesize that their presence in bone marrow and / or blood recipient is correlated to the relapse incidence. | ||||||||
Detailed Description | Not Provided | ||||||||
Study Type ICMJE | Interventional | ||||||||
Study Phase ICMJE | Not Applicable | ||||||||
Study Design ICMJE | Allocation: N/A Intervention Model: Single Group Assignment Masking: None (Open Label) Primary Purpose: Basic Science |
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Condition ICMJE |
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Intervention ICMJE |
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Study Arms ICMJE | Experimental: immune escape mecanims
Cohort study with a representative sample of patients
Interventions:
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Publications * |
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||||||
Recruitment Status ICMJE | Not yet recruiting | ||||||||
Estimated Enrollment ICMJE |
104 | ||||||||
Original Estimated Enrollment ICMJE | Same as current | ||||||||
Estimated Study Completion Date ICMJE | November 1, 2022 | ||||||||
Estimated Primary Completion Date | June 30, 2022 (Final data collection date for primary outcome measure) | ||||||||
Eligibility Criteria ICMJE |
Inclusion Criteria:
Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | 18 Years to 71 Years (Adult, Older Adult) | ||||||||
Accepts Healthy Volunteers ICMJE | No | ||||||||
Contacts ICMJE |
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Listed Location Countries ICMJE | Not Provided | ||||||||
Removed Location Countries | |||||||||
Administrative Information | |||||||||
NCT Number ICMJE | NCT03964922 | ||||||||
Other Study ID Numbers ICMJE | 2019-A00842-55 | ||||||||
Has Data Monitoring Committee | Yes | ||||||||
U.S. FDA-regulated Product |
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IPD Sharing Statement ICMJE | Not Provided | ||||||||
Responsible Party | Central Hospital, Nancy, France | ||||||||
Study Sponsor ICMJE | Central Hospital, Nancy, France | ||||||||
Collaborators ICMJE | Not Provided | ||||||||
Investigators ICMJE | Not Provided | ||||||||
PRS Account | Central Hospital, Nancy, France | ||||||||
Verification Date | May 2019 | ||||||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |