- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02827552
Description of Individual Radiosensitivity With Molecular Biomarkers in a Pediatric Oncology Population (ARPEGE BioM)
Integrative Molecular Analysis of Individual Radiosensitivity Among a Population of Pediatric Patients Treated With Radiation in Eastern France.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
900 children and adolescents benefit from radiation each year in France. The mean age at diagnosis is 5 years; life expectancy for the 80% of them who could cure is long, and the incidence of radiation-related acute and mainly late complications - not evaluated to date - could exceed that of adults. Dysfunction of irradiated organs and growth disorders are specific to the pediatric subpopulation. Individual radiosensitivity of children and adolescents is unknown at this time, probably with large variability depending on the age when considering the changes in metabolic functions throughout growth. These complications are largely attributable to inter individual constitutional variations of cellular response to DNA damage.
Subject to radiation-induced DNA damages such as double-strand breaks (DSB), cells reacts by triggering a whole series of phosphorylation events coordinated within multi protein complexes whose interplay is still misknown (DNA damage response i.e. DDR). Indirect Immunofluorescence cell scanning has revolutionized radiation biology research by permitting the detection of individual DSB in each cell nucleus in a dose range from 1 mGy to 10 Gy. This technique has notably confirmed that yield of unrepaired DSB is correlated with cell RS. From a broad spectrum of human radiosensitive skin fibroblast cell lines, the Inserm CRU 1052 team proposed a general model of DSB signaling and repair and a molecular assay to stratify patients according to their individual RS.
ARPEGE biomarqueurs is a prospective multicenter study to prospectively evaluate with this assay the RS of children and adolescents treated over a year in all pediatric oncology departments of the Region Grand Est and set thresholds in this population. 150 children are thus potentially includable in different centers. The assay will be performed on primary fibroblasts cultured from a skin biopsy taken at diagnosis. The RS of patients will be measured in blind. Confusion factors such as irradiated volume, skin phototype, previous chemotherapy regimen, smoking, comorbities (diabetes, immunodeficiency, chronic inflammatory disease ...) will be reported. In parallel the RT-acute toxicity will be reported according to NCI-CTCAE v4.0 reference scale three months of the completion of RT then periodically during 15 years.
Screening hypersensitive patients would be a major step forward in the management of cancers, opening a view to personalized medicine.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Besançon, France, 25 000
- CHU de Besançon
-
Dijon, France, 21 000
- CHU de Dijon
-
Dijon, France, 21 000
- Georges-François-Leclerc
-
Lyon, France, 69 000
- Centre Leon Berard
-
Reims, France, 51 100
- CHU de Reims
-
Strasbourg, France, 67 065
- Centre Paul Strauss
-
Strasbourg, France, 67 098
- Hopital de Hautepierre
-
Toulouse, France, 31059
- CHRU Toulouse
-
Toulouse, France, 31059
- IUCT Oncopole
-
Vandoeuvre-lès-Nancy, France, 54 500
- Institut de Cancérologie de Lorraine
-
Vandoeuvre-lès-Nancy, France, 54500
- CHRU Nancy
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Children < 18 years old
- Patient with an indication of radiotherapy
- Patient must be affiliated to a social security system
- Patient under parental autority
- Ability to provide an informed written consent form
Exclusion Criteria:
- Contraindications for skin biopsy
- Contraindications for radiotherapy
- Referred to palliative radiotherapy
- Prior radiotherapy in the same area
- Indication of hypofractionated radiotherapy
- Patient monitoring impossible
- Patients deprived of liberty or under supervision
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: ARPEGE BioM
N/A (not a randomized study)
|
skin biopsy performed prior radiation to characterize in blind the individual radiosensitivity of the patient
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
skin fibroblast radiosenstivity
Time Frame: up to 5 months
|
residual double-strand breaks 24h after ex vivo radiation assessed with indirect immunofluorescence (gammaH2AX marker).
|
up to 5 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
early cutaneous, mucosal and hematological early radiation toxicity
Time Frame: 3 months
|
early radiation toxicity pattern assessed according to CTACAE v4.0 scale
|
3 months
|
pATM nucleoshuttling
Time Frame: up to 5 months
|
pATM foci counted 10 minutes and 1 hour after ex vivo radiation assessed with indirect immunofluorescence (pATM marker).
|
up to 5 months
|
mean micronuclei number
Time Frame: up to 5 months
|
micronuclei counted 24 hours after ex vivo radiation assessed with indirect immunofluorescence (DAPI marker).
|
up to 5 months
|
late radiation toxicity
Time Frame: 15 years
|
deterministic tissue effects as well as secondary malignancies occurring in radiation field more than 3 months and up to 15 years after RT, using CTCAE v4.0 scale
|
15 years
|
Collaborators and Investigators
Investigators
- Principal Investigator: BERNIER CHASTAGNER VALERIE, MD, Institut de Cancérologie de Lorraine
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 2015-A00975-44
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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