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Preoperative mFOLFIRINOX (or Gem-Nab-P) +/- Isotoxic High-dose SBRT for Borderline Resectable Pancreatic Adenocarcinoma

Preoperative Treatment With mFOLFIRINOX (or Gem-Nab-P) +/- Isotoxic High-dose Stereotactic Body Radiation Therapy (iHD-SBRT) for Borderline Resectable Pancreatic Adenocarcinoma: a Randomised Phase II Study (STEREOPAC)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05083247
Acronym
STEREOPAC
Enrollment
256
Registered
2021-10-19
Start date
2023-03-24
Completion date
2030-12-31
Last updated
2023-05-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Borderline Resectable Pancreatic Adenocarcinoma, Pancreatic Adenocarcinoma, Pancreatic Neoplasm

Keywords

borderline resectable pancreatic cancer, neoadjuvant therapy, stereotactic body radiation therapy, chemotherapy

Brief summary

Surgical resection is the only potentially curative treatment for patients with pancreatic cancer with the aim of curative R0 resection and related improvement of survival. As a standard, surgery is usually followed by adjuvant therapy that improves survival but neoadjuvant therapy (NAT) is a rapidly emerging concept that needs to be explored and validated in terms of therapeutic options in borderline resectable pancreatic tumors. In this setting, preoperative FFX seems to be feasible and can be prolonged by radiation therapy. However, the exact and best therapeutic sequence is not yet known and the additional role of adding isotoxic high-dose stereotactic body radiotherapy (iHD-SBRT) to chemotherapy requires validation in randomised trials. We propose to evaluate the impact and efficacy of adding iHD-SBRT to preoperative neoadjuvant mFFX or Gem-NabP in patients with borderline resectable pancreatic adenocarcinoma.

Detailed description

STEREOPAC is an multicenter, academic, prospective, randomised comparative, interventional study. Patients receive 4 cycles of mFOLFIRINOX (or Gem-Nab-P)\*. A full restaging (clinical, morphologic imaging, vascular involvement, biologics, CA 19.9) is performed. Non-progressive patients will be randomised (1:1) to ARM A for receiving 4 additional cycles of chemo followed by surgery. or to ARM B for receiving 5th and 6th cycles of chemo then iHD-SBRT followed by a 7th (and optional 8th cycle) followed by surgery. \*: in case of CI or intolerance to mFFX, Gem-Nab-P regimen can be chosen or shifted to for 6 doses, then restaging, and then 3 doses followed by SBRT or 6 doses and immediate surgery) Adjuvant chemotherapy administration is indicated unless the patient's condition precludes it.

Interventions

DRUGmFOLFIRINOX or Gemcitabine nab-paclitaxel

oxaliplatin IV, irinotecan IV, leucovorin IV and 5-FU IV OR Gemcitabine IV Nab paclitaxel

RADIATIONIsotoxic High-Dose (iHD)-SBRT

Radiation therapy

PROCEDURESurgery

Surgery

Sponsors

Jules Bordet Institute
CollaboratorOTHER
Belgian Group of Digestive Oncology
CollaboratorOTHER
University Hospital St Luc, Brussels
CollaboratorOTHER
Erasme University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

comparative randomised phase II

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Cytologic or histologic proof of adenocarcinoma of the pancreatic head or uncinated process or body or tail. Diagnosis should be verified by local pathologist * cTNM stage: T1-4N0-2M0 * Confirmation of clinical and radiographic stage as borderline resectable (CT scan and/or MRI scan with contrast according to the NCCN criteria) by a multidisciplinary board, composed by a dedicated oncological surgeon, radiologist and GI oncologist) * Age \> 18 years old * No prior chemotherapy or radiation for pancreatic cancer * Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 * No grade ≥ 2 neuropathy * Laboratory parameters as follows: * Absolute neutrophil count (ANC) ≥ 1,500/mm³ * Platelet count ≥ 100,000/mm³ * Hemoglobin ≥ 9 g/dL * Creatinine ≤ 1.5 x upper limit of normal (ULN) or estimated GFR \>45 mL/min * Bilirubin ≤ 1.5 x ULN, including after adequate biliary stenting with metal stent (ideally 4 cm length) * Aspartate aminotransferase (AST) / alanine aminotransferase (ALT) ≤ 2.5x ULN * CA 19.9 \< 2500 kU/l (baseline, prior to any therapy and absence of cholestasis)

Exclusion criteria

* Evidence of extrapancreatic disease on diagnostic imaging (CT, MRI or PET scan), histologically proven or at laparoscopy, including distal nodal involvement beyond the peripancreatic tissues (including non-regional lymph node involvement, ie: proven involvement of precaval lumbar lymphadenopathy(ies) and/or distant metastases * Locally advanced disease as defined by the NCCN criteria (version 2.2021) ie \> 180° arterial encasement (SMA and CA) unreconstructible venous encasement (SMV/PV) due to tumor involvement or occlusion of a long segment. * CA 19.9 \> 2500 kU/l (baseline and absence of cholestasis) * Contraindication of surgery (general) * Contraindications to receive FFX or gemcitabine-nab-Paclitaxel * History of radiotherapy of the upper abdomen * Prior treatment with oxaliplatin, irinotecan, fluoruouracil or capecitabin * Patient \< 18 years old * Major surgery within 4 weeks of study entry * Uncontrolled pre-existing disease including, but not limited to: active infection, symptomatic congestive heart failure, unstable angina, social / psychiatric disorder that would limit compliance to treatment and good understanding of the informed consent form * Other concurrent anticancer therapies * Existence of another active neoplasia other than basal cell carcinoma of the skin, cervical carcinoma in situ or non-metastatic prostate cancer. Patients who have a history of neoplasia must have been in remission for more than 5 years to be included in the protocol * Pregnant or breastfeeding women; for women of childbearing potential only, a negative pregnancy test done \< 7 days prior to registration is required. Using of reliable contraception for at least 1 month before treatment is mandatory * Chronic concomitant treatment with strong inhibitors of cytochrome p450, family 3, subfamily a, polypeptide 4 gene (CYP3A4) is not allowed on this study; patients on strong CYP3A4 inhibitors must discontinue the drug for 14 days prior to registration on the study Additional

Design outcomes

Primary

MeasureTime frameDescription
Disease free survivalFrom date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 weeksDefined as time from randomisation to the first documentation of event where events considered are 1) disease progression, per RECIST, prior to surgery, 2) discovery of hepatic or peritoneal carcinomatosis during surgical exploration, 3) recurrent disease following R0-R1 surgery, or 4) death due to any cause.
R0 Resection rateup to 12 monthsDefined as the proportion of eligible randomised patients in whom a R0 resection was achieved during surgery after neoadjuvant treatment with FOLFIRINOX +/- iHD-SBRT. R0 resection indicates a microscopically margin-negative resection (\>1 mm) from the inked margins (pancreatic transection, vascular and posterior circumferential resection margins).

Secondary

MeasureTime frameDescription
Complete feasibility of the therapeutic sequenceup to 12 monthsDefined as the proportion of patient who performed completely the neoadjuvant therapeutic sequence with mFFX (or Gem-Nab-P) +/- iHD-SBRT until surgery (abdominal exploration with or without pancreatectomy). The therapeutic sequence will not be considered as feasible if less than 60% of patients do not complete it until surgery.
Overall survival (OS)Defined as the time interval between randomisation and death, assessed up to 60 monthsDefined as the time interval between randomisation and death. 95% confidence interval will be estimated based on standard method.
Locoregional failure free interval (LFFI)defined as the time interval between the randomisation and the 1st documented date of locoregional failure, assessed up to 60 monthsdefined as the time interval between the randomisation and the date of locoregional failure. A locoregional failure is any progressive or recurrent pancreatic cancer in the original tumour location or the N1-2 lymph node areas
Distant metastases free interval (DMFI)defined as the period of time without distant metastasis after randomisation, assessed up to 60 monthsdefined as the period of time without distant metastasis after randomisation.
Toxicity, Incidence of adverse eventsup to 24 monthsassessed per Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 and the Patient-Reported Outcomes version of the CTCAE
Resection rateup to 12 monthsdefined as the percentage of eligible randomised patients that underwent a curative-intent resection
Quality of life (QoL) assessment - Generalup to 24 monthsassessed per EORTC General Quality of life of Cancer patient questionnaire QLQ-C30 version 3.0 (minimum value: 30 - maximum value: 126; higher score associated with worse QoL outcome).
Quality of life (QoL) assessment - Pancreatic cancerup to 24 monthsassessed per EORTC Quality of life of Pancreatic Cancer patient questionnaire QLQ-PAN26 (minimum value: 26 - maximum value: 104; higher score associated with worse QoL outcome).
Quality of life (QoL) assessment - Depressionup to 24 monthsassessed per the depression test : Patient Health Questionnaire-9 (PHQ-9; minimum value: 0 - maximum value: 27; higher score associated with worse QoL outcome)
Technical and quality success rate of EUS-delivered fiducials.up to 12 monthsThe technical success is defined as at least one marker presumed to be inside the tumour at the end of the EUS procedure. The quality success is defined as a score equal or higher than 6/12 points based on the 5 items quality score defined in \[Figueiredo M, Bouchart C et al 2021\].
Postoperative complicationsup to 12 monthsdefined according to the Clavien-Dindo classification and definitions of post-pancreatic surgery complications (pancreatic fistula, delayed gastric emptying and bleeding) by the International study group on Pancreatic Surgery.
Pathologic complete/major response (pCR)up to 12 monthsDefined as the proportion of patients in whom a pCR or a major (\<10% of residual tumour cells) was confirmed by histopathologic review of the surgical specimen.

Countries

Belgium

Contacts

Primary ContactJean-Luc Van Laethem, MD PhD
jl.vanlaethem@erasme.ulb.ac.be003225553714
Backup ContactMia Persoons
mia.persoons@erasme.ulb.ac.be003225553016

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026