An interventional study of Collection of tumor and blood sample in Diagnosis of Soft Tissue Sarcoma (STS), sponsored by Centre Leon Berard. Not yet recruiting at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-02-10.
Sponsored by Centre Leon Berard · Not applicable, Interventional, and Other
This trial is a monocentric, clinico-biological cohort study with prospective enrollment, aiming to develop a method for detecting and sorting CTCs (circulating tumour cells) from liquid biopsies (fresh blood samples) in patients with advanced or metastatic soft tissue sarcomas.This study include collection of clinical data, of tumor samples (collected during standard of care).
EXPERIMENTAL PLAN One archival tumor sample (any FFPE and/or frozen tumor sample from surgery specimen or biopsy) will be collected.
A total of 100 patients will be enrolled.
Considering the nature of this trial, the sample size was defined in an empirical manner considering that over the 36-month enrollment period, 100 patients could be enrolled.
The percentage of patients with detectable CTC (primary criterion) will be given with its associateed 95% confidence interval. For the seondary criteria, qualitative variables will be described using frequency and percentage distributions. The number of missing data will be given, but will not be considered for the calculation of proportions. Quantitative data will be described using the number of observations, mean, standard deviation, median, minimum and maximum values.
Patient characteristics and other baseline data (demographics, disease characteristics) will be summarized.
All data analyses will be performed using the SAS version 9.4 statistical software
9,365 studies on the registry are indexed under Neoplasms; 2,489 are open to participants now.
This study's planned enrollment of 100 is above the median of 50 across 7,253 interventional studies indexed under Neoplasms.
Browse Neoplasms studies →Centre Leon Berard is the lead sponsor of 206 studies on the registry; 61 are open to participants now.
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Exclusion Criteria:
A clinico-biological cohort with collection of tumor and blood sample for detecting and sorting circulating tumor cells
Other: Collection of tumor and blood sample
Collection of tumor and blood sample for detecting and sorting circulating tumor cells
To develop a method for detecting and sorting CTCs (circulating tumour cells) from liquid biopsies (fresh blood samples) in patients with advanced or metastatic soft tissue sarcomas
Percentage of patients with detectable CTC
Time frame: 48 months
Characterise the genetic profile of CTCs
Transcriptomic data Genomic data Percentage of organoids formed Changes in CTC counts
Time frame: 48 months
Establish tumour organoids from CTCs harvested before any initial treatment and, where possible, at the time of the first tumour recurrence
Transcriptomic data Genomic data Percentage of organoids formed Changes in CTC counts
Time frame: 48 months
Correlate the clinical response to treatments with the in vitro efficacy of the same treatments on tumour organoids.
progression free survival according RECIST 1.1 criteria
Time frame: 48 months
Assess the role of CTCs in tumour monitoring
progression free survival according RECIST 1.1 criteria
Time frame: 48 months
Evaluate the mechanisms of resistance to chemotherapy
progression free survival according RECIST 1.1 criteria
Time frame: 48 months
This study is not yet recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.
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Centre Leon Berard