The aim of our study is to build up biological, radiological and tissue collections so as to identify, at the time of diagnosis of pancreatic adenocarcinoma, multifactorial factors and/or biomarkers (tissue, plasma, radiomic) predictive of the success of the complete therapeutic sequence. So we can distinguish 3 biological collections here : * Collection for ctDNA assay on STRECK tubes * Collection on PAXgene tubes * Tissus collection Considering the biology collection for ctDNA assay : blood samples will be taken on specific tubes before the start of neoadjuvant chemotherapy (C1), Before C2 and after C4 of neoadjuvant chemotherapy. For ctDN assay, 2x 10ml STRECK tubes will be taken at each point for each patient. At the end of the study, aliquots will be sent to INSERM unit U1245 to be analyzed Considering the biology collection on PAXgene tubes : 2,5 ml blood samples will be taken in PAXgene blood RNA tube before C1 for each patient Considering tissue collection: pre-chemotherapy biopsies and surgical specimens will be preserved after resection. Tissue sample will be collected and preserved in the tumor bank of Rouen university hospital, By collecting data for all screened patients (complete sequence in PANACHE02, NT failure (progression), randomization failure after surgery) at diagnosis (clinicobiological data, pre-NT biopsies, blood samples and imaging data) we first aim to refine patient selection for NT benefit with a multivariable signature approach and to identify biomarkers (blood, imaging) monitoring during the neoadjuvant phase that could be predictive of early detection for NT treatment failure. We therefore believe that the constitution of such cohort is critical to address numerous unmet needs.
Study Type
OBSERVATIONAL
Enrollment
820
CHU de Rouen
Rouen, France, France
factors and/or multifactorial biomarkers signature predictive of success of the complete therapeutic sequence
In relation with the primary objective the primary endpoint of the PANACHE02 screening cohort study is the success for the complete therapeutic sequence defined by the administration of at least 4 cycles of neoadjuvant modified FOLFIRINOX following by pancreatic tumor resection and at least one cycle of adjuvant treatment. A patient evaluable for the primary endpoint is a patient for whom we the success or the failure of the complete therapeutic sequence. A patient in success for the complete therapeutic sequence is a patient with an administration of at least 4 cycles of neoadjuvant modified FOLFIRINOX following by pancreatic tumor resection and at least one cycle of adjuvant treatment. A patient in failure for the complete therapeutic sequence is a patient with an administration of less than 4 cycles of neoadjuvant modified FOLFIRINOX and/or no resection and/or no adjuvant treatment administration.
Time frame: from enrollment to the first cycle of adjuvant treatment up to 2 months
Overall Survival (OS) in the overall population and according to the complete therapeutic sequence status
Overall survival; OS will be calculated from the date of diagnosis to the date of death from any cause. Alive patients will be censored at the last date known to be alive, either during study treatment period or during follow-up period.
Time frame: through study completion, an average of 76 months
prognostic value of ctDNA at diagnosis for OS
extraction of ctDNA, then quantification by fluorimetry before being analyzed by digital PCR (dPCR)
Time frame: through study completion, an average of 76 months
prognostic value of ctDNA at diagnosis for event free survival,
Event-free survival (EFS) was used to evaluate the time to failure since diagnosis. A failure is defined as progression before surgery, unresectable or metastatic disease at surgical exploration and recurrence or death whatever occurred first after surgery. Alive patients with no failure will be censored at the last date known to be alive with no failure events, either during study treatment period or during follow-up period.
Time frame: through study completion, an average of 76 months
tissue, serum and imaging libraries (Biological database development)
Assess several methods to quantify tumor response and its prognostic value. If pertinent and reproducible, the best method may better select the patients most likely to beneficiate from a chemotherapy switch than the pTNM stage. Different approaches will be compared to refine the identification of good/bad responders.
Time frame: through study completion, an average of 76 months
factors associated with early recurrence for patients resected (< 12 months after surgical resection).
For patients resected, Disease Free Survival (DFS), is defined as the time from complete surgical resection to first documented event (cancer relapse, second malignancy, or death, whichever occurred first), or until last contact if no event occurs. Patients lost to follow-up were censored at last follow-up visit.
Time frame: from surgical resection to the end of follow-up period at 28 months
the rate of patients with access to adjuvant treatment
Rate of patients with access to adjuvant treatment
Time frame: from enrollment to the adjuvant treatment period, an average of 5 months
factors at diagnosis associated with the access to adjuvant treatment
Time frame: from enrollment to the adjuvant treatment period at 5 months
safety and tolerance of the neoadjuvant chemotherapy
Safety and will be measured by the incidence and grade of AEs, SAEs, according to NCI-CTCAE v 5.0
Time frame: from enrollment to 90 days post operatively
overall morbidity of the neoadjuvant chemotherapy
Overall morbidity evaluated with DINDO-CLAVIEN at 30 days and 90 days post operatively The Clavien Dindo classification scale consists of several grades ranging from a postoperative event not requiring medical treatment Grade I to death Grade V (Grade I, II, IIIa, IIIb, IVa, IVb and V)
Time frame: from enrollment to 90 days post operatively
surgical morbidity and mortality rates
Surgical morbidity and mortality rates are evaluated with DINDO-CLAVIEN at 30 days and 90 days post operatively The Clavien Dindo classification scale consists of several grades ranging from a postoperative event not requiring medical treatment Grade I to death Grade V (Grade I, II, IIIa, IIIb, IVa, IVb and V)
Time frame: from enrollment to 90 days post operatively
value of the tumour response
size, T stage; resection margins, criterion R; lymph node invasion, N stage
Time frame: from enrollment to the end of follow-up period at 28 months
Number of patients with complete neoadjuvant sequence
complete neoadjuvant sequence correspond to mFOLFIRINOX Cycles + curative surgery
Time frame: from enrollment to the end of follow-up period at 28 months
evolution of health-related quality of life
(EORTC QLQ-C30 and QLQ-PAN26 questionnaires)
Time frame: from enrollment to the end of follow-up period at 28 months
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