Neutrophils in Bone Sarcomas (TANOs)
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| ClinicalTrials.gov Identifier: NCT04867421 |
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Recruitment Status :
Recruiting
First Posted : April 30, 2021
Last Update Posted : April 30, 2021
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Hypothesis: Tumor infiltrating neutrophils are present in osteosarcomas and chondrosarcomas and
Experimental design: Exploratory observational research
Population: Adult patients with osteosarcoma or chondrosarcoma
Assessment criteria: Determination of the presence of TANs within tumors and their N1 or N2 profile, the presence of other immune cells, and the PDL-1 status of the tumor.
Investigation plan: Proposal to participate at all eligible patient during the preoperative consultation. If the patient agrees to participate in the study he/she will be included. Participation in the study will not affect its coverage. Patient participation will lead to:
- Taking samples from an operative part,
- The collection of demographic data (age, sex, height, weight, body mass index), family history of cancer, history of bone trauma, sports practice, clinical and anatomopathology reports and data, medical history (Diabetes, Cardiovascular Diseases, Infectious Diseases, Autoimmune Diseases, Bone Metabolism Disorders, Allergies, Menopause, Drug treatments followed, Psychiatric disorders).
Statistical analysis plan: Description in frequency of the presence of TANs, of N1 and N2 profiles, of the presence of other immune cells both qualitatively and quantitatively. Analysis in subgroups on relevant criteria (age, sex, location, type of tumor).
| Condition or disease | Intervention/treatment |
|---|---|
| Osteosarcoma, Chondrosarcoma | Other: No intervention |
| Study Type : | Observational |
| Estimated Enrollment : | 25 participants |
| Observational Model: | Cohort |
| Time Perspective: | Prospective |
| Official Title: | Assessment of the Presence, and Characterization, of Tumor-associated Neutrophils in Bone Sarcomas: Pilot Study |
| Actual Study Start Date : | September 1, 2020 |
| Estimated Primary Completion Date : | August 1, 2025 |
| Estimated Study Completion Date : | August 1, 2025 |
| Group/Cohort | Intervention/treatment |
|---|---|
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TANOs
Adult patients with osteosarcoma or chondrosarcoma
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Other: No intervention
No intervention |
- Assessment of the presence of neutrophils in sarcoma-affected tissues [ Time Frame: Time of surgery ]Flow cytometry analysis on excised tissues
- Comparison of flow cytometry and histology for neutrophil assessment in sarcoma-affected tissues [ Time Frame: Time of surgery ]Neutrophil identification thanks to CD66b marker with both the techniques
- Identification of neutrophils N1 or N2 profile in sarcoma-affected tissues [ Time Frame: Time of surgery ]Flow cytometry (CD45 CD66b CD182 CD184 CD195)
- Identification of non-neutrophil leukocytes in sarcoma-affected tissues [ Time Frame: Time of surgery ]Flow cytometry analysis (CD45 CD3 CD4 CD8 CD19 CD33 CD80 CD163)
- Determination of PDL1 status of neutrophils in sarcoma-affected tissues [ Time Frame: Time of surgery ]Flow cytometry analysis (CD45 CD66b CD 274)
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
| Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
| Sexes Eligible for Study: | All |
| Accepts Healthy Volunteers: | No |
| Sampling Method: | Probability Sample |
Inclusion Criteria:
- Patient of 18 years and more
- Patient of the Orthopedic and Traumatological Surgery Department of the Reims University Hospital or the Godinot Institute
- Patient with osteosarcoma or chondrosarcoma to be operated on regardless of stage.
- Patient agreeing to participate in the study (informed consent form)
- Patient fluent in French
- Patient affiliated with a social security regimen
Exclusion Criteria:
- Patient having a medical history that may compromise the protocol (psychiatric, medical or pharmacological disorders such as the use of anti-inflammatory drugs, or any compound that may alter or modify the inflammatory reaction in the week preceding the protocol).
- Pregnant or breastfeeding women
- Patient with eating disorders (anorexia, bulimia, overeating)
- Patient protected by law (guardianship, curatorship, hospitalized without their consent and not protected by law, deprived of liberty)
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04867421
| Contact: Christophe MESA | 03 26 78 77 51 | cmensa@chu-reims.fr | |
| Contact: Frédéric VELARD | 03 26 91 80 10 | frederic.velard@univ-reims.fr |
| France | |
| Université de Reims Champagne-Ardenne | Recruiting |
| Reims, France | |
| Contact: Frédéric VELARD | |
| Principal Investigator: | Christophe MESA | Université de Reims Champagne-Ardenne - CHU de Reims |
| Responsible Party: | Université de Reims Champagne-Ardenne |
| ClinicalTrials.gov Identifier: | NCT04867421 |
| Other Study ID Numbers: |
2020-003-TANOs |
| First Posted: | April 30, 2021 Key Record Dates |
| Last Update Posted: | April 30, 2021 |
| Last Verified: | April 2021 |
| Studies a U.S. FDA-regulated Drug Product: | No |
| Studies a U.S. FDA-regulated Device Product: | No |
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Osteosarcoma Chondrosarcoma Tumor associated neutrophils |
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Osteosarcoma Chondrosarcoma Sarcoma Neoplasms, Connective and Soft Tissue |
Neoplasms by Histologic Type Neoplasms Neoplasms, Bone Tissue Neoplasms, Connective Tissue |

