This trial is a multicenter, prospective cohort study aiming to describe molecular profiles of soft tissue sarcoma (STS) with complex genomic profiles in particular to assess the incidence of NTRK1/2/3, ROS1 or ALK gene fusions to direct such patients through an ongoing clinical trial with entrectinib when appropriate. An exploratory translational program is also correlated to this trial in order to analyse immune gene expression.
Following inform consent form (ICF) signature, a formalin-fixed and paraffin-embedded (FFPE) tumor block (archival or a dedicated freshly collected tumor biopsy) will be collected for all enrolled patients and centralized at the biological resources platform of the Centre Léon Bérard. At reception, a central pathological review will be performed to confirm if quality and quantity of material is acceptable: all tumor sample should present at least 20 % (ideally 30 %) of tumor cells and have a surface area \> 5 mm2 (optimal condition is a surface area of 5-25 mm2). If the quality and quantity of tumor sample do not meet the standards, patients will be considered as "screening failure". If standards are met, inclusion will be confirmed and molecular screening will be initiated as well as the translational research program. The molecular screening to detect NTRK1,2,3, ROS1 or ALK gene rearrangements will be a two-step process, consisting of : 1. First, immunohistochemistry (IHC) assay to detect protein expression of TRKA/B/C (encoded by NTRK1,2,3), ROS1 or ALK. Only positive IHC samples will continued the 2nd step of molecular screening. Negative IHC patients do not require further NTRK, ROS or ALK gene rearrangement testing; however tumor samples will be further used for additional translational research program presented in Section VII and data about the clinical evolution of these patients will be collected 2. Second, RNAseq analysis will be performed on positive IHC specimens to detect specific rearrangements in the NTRK1,NTRK2, NTRK3, ROS1 or ALK genes. 3. Following molecular analyses, screening results will be immediately (within 24 hours) communicated to investigators, GSF-GETO Network and Ignyta representatives in order to recommend patients with NTRK1, NTRK2, NTRK3, ROS1 or ALK rearrangement for formal eligibility determination for potential enrolment in a clinical trial in particular with entrectinib (STARTRK-2; NCT02568267).
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
SCREENING
Masking
NONE
Enrollment
376
FFPE tumor block (archival or a dedicated freshly collected tumor biopsy) will be collected for all enrolled patients and centralized. Blood sampling for Translational Research (optional) (2\*10mL EDTA)
Centre Jean Perrin
Clermont-Ferrand, France
Centre Georges-Francois Leclerc
Dijon, France
Centre Oscar Lambret
Lille, France
CHU de Limoges Hôpital Dupuytren
Limoges, France
Centre Léon Bérard
Lyon, France
Institut de Cancérologie de Lorraine
Nancy, France
Centre Antoine Lacassagne
Nice, France
Institut Gustave ROUSSY
Paris, France
Centre Eugène Marquis
Rennes, France
Institut de Cancérologie de la Loire Lucien Neuwirth
Saint-Priest-en-Jarez, France
the proportion of patients with NTRK1/2/3, ROS1 or ALK gene fusions (95% confidence interval)
Such molecular pre-screening will allow to direct eligible patients with sarcomas harboring an NTRK1/2/3, ROS1 or ALK fusion to a clinical trial with entrectinib, when judged appropriate by the patient's treating oncologist. Depending of the molecular alterations, other therapeutic options could be envisaged.
Time frame: 24 months
Proportion of patients with NTRK1/2/3, ROS1, or ALK gene fusion per histological sub-types of STS with complex genomics
the partitioning of STS patients with NTRK1/2/3, ROS1 or ALK gene fusions within the different STS sub-types.
Time frame: 24 months since first inclusion
Clinical characteristics of patients with NTRK1/2/3, ROS1, or ALK gene fusion versus patients with no NTRK1/2/3, ROS1, or ALK gene fusion.
Comparisons of quantitative variables will be assessed with Student t-test or Wilcoxon-Mann and Whitney test , as appropriate. Comparisons of qualitative variables will be assessed with the X2 test or the Fisher's exact test, as appropriate.
Time frame: 24 months since first inclusion
anti-cancer treatments initiated since inclusion.
anti-cancer treatments initiated since inclusion among patients with NTRK1/2/3, ROS1, or ALK gene fusion and among patients with no NTRK1/2/3, ROS1, or ALK gene fusion.
Time frame: 36 months
Overall survival (OS)
Overall survival (OS) among patients with NTRK1/2/3, ROS1, or ALK gene fusion and among patients with no NTRK1/2/3, ROS1, or ALK gene fusion. It will be measured from the date of STS diagnosis to the date of death from any cause. Patients who are alive at the time of analysis will be censored at the date of last contact. OS will be estimated using the Kaplan-Meier method, and will be described in terms of medians along with the associated 2-sided 95% confidence interval (CI)
Time frame: 36 months
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.