Gene Signatures Searching of Sensitivity/Resistance to Neoadjuvant Radiotherapy in Patients With Resectable STS
RADIOSARC
[RADIOSARC] Searching for Specific Gene Signature(s) of Sensitivity/Resistance to Neoadjuvant Radiotherapy in Adults Patients With Resectable Soft Tissue Sarcomas of Limbs
2 other identifiers
observational
300
1 country
1
Brief Summary
To date, the radiation oncologist are missing biomarkers predictive of response/resistance to RT in order to identify patients who may benefit from RT and personalize the RT schedule. Our proposal is to conduct a cohort study aiming at identifying transcriptomic biomarkers predictive of sensitivity and/or resistance to RT in limbs STS patients
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Nov 2022
Typical duration for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 23, 2022
CompletedFirst Submitted
Initial submission to the registry
January 26, 2023
CompletedFirst Posted
Study publicly available on registry
February 22, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 23, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
November 23, 2025
CompletedFebruary 22, 2023
February 1, 2023
2.6 years
January 26, 2023
February 20, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
To define a transcriptomic signature of histological response to radiotherapy in STS patients using the percentage of residual viable cells as a clinical meaningful endpoint
Gene expression signature using RNAseq correlated to the percentage of residual viable cells on surgery specimen to define histological response.
36 months
Secondary Outcomes (1)
To identify biomarkers of sensitivity or resistance to radiotherapy in STS patients using additional clinical endpoints
36 months
Study Arms (2)
Retrospective cohort
A total sample size of 200 patients is expected in the retrospective thanks to the NETSARC/ CONTICABASE databases (French sarcoma reference network)
Prospective cohort
To ensure an external validation, patients from NETsarc centers experiencing preoperative RT will be prospectively accrued and transcriptomic signature will be tested. Up to 100 patients will be enrolled in this prospective cohort.
Interventions
As per standard of care and institutional guidelines
As per standard of care and institutional guidelines
Eligibility Criteria
Patients with Soft tissus sarcoma who underwent/undergo to preoperative Radiation and for whom resected tumour specimen is available.
You may qualify if:
- Male and female ≥ 18 years at time of non-opposition to participate to the study
- Patient with documented non-opposition to participate to the study.
- Patient with histologically and cytologically confirmed diagnosis with STS (..)
- Patient with availability of FFPE tumor block from initial diagnosis biopsy (mandatory) and surgery specimen (optional).
- Patients with tumor FFPE samples prepared with the last 4 years
- Patient with evaluable tumor sample meeting the following quality/quantity control criteria (..)
You may not qualify if:
- Patients with metastatic soft tissue sarcoma at diagnosis
- Patients with exclusive radiotherapy without surgical resection
- Patients receiving neo adjuvant systemic treatment (chemotherapy, immunotherapy, targeted therapy)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Centre Léon Bérard
Lyon, France
Biospecimen
Available FFPE Tumour samples at diagnosis and surgery from respectively Retrospective cohort \[200 patients\] and Propective Cohort \[100 patients\]
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- OTHER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 26, 2023
First Posted
February 22, 2023
Study Start
November 23, 2022
Primary Completion
June 23, 2025
Study Completion
November 23, 2025
Last Updated
February 22, 2023
Record last verified: 2023-02
Data Sharing
- IPD Sharing
- Will not share