Personalized First-line Chemotherapy Choice in Advanced Pancreatic Adenocarcinoma Using Transcriptomic Signatures (PACsign)

April 30, 2026 updated by: Institut Curie

Pilot Study of Personalized First-line Chemotherapy Choice for Patients With Advanced Pancreatic Adenocarcinoma Using Transcriptomic Signatures (PACsign)

The aim of this study is to assess the clinical value of 5 transcriptomic signatures prognostic of chemotherapeutic sensitivity to improve the Objective Response Rate (ORR) of first-line (L1). Chemotherapy regimen (FOLFIRINOX vs Gem-nabP) will be selected based on transcriptomic signatures applied to the pre-therapeutic liver biopsy of newly diagnosed PDAC patients.

Study Overview

Detailed Description

Step 1: patients will sign a 1st informed consent prospectively for the molecular screening (RNAseq profile). 5 transcriptomic signatures will be applied for prediction of response to 5 Fluoro-Uracil (5FU), oxaliplatin, irinotecan, gemcitabine and taxane. Biomarker status will be obtained for all patients as part of good clinical practice.

Patients will be eligible for prospective step 2 only if the transcriptomic analysis is informative and the treatment can be started within 28 days.

Step 2: study treatment strategy: based on the results of transcriptomic signatures, patients will receive either FOLFIRINOX or Gem-nabP according to the following algorithm (2nd informed consent):

  • Predicted to be FOLFIRINOX sensitive (regardless of sensitivity to Gem-nabP) = FOLFIRINOX
  • Predicted to be FOLFIRINOX and Gem-nabP resistant = FOLFIRINOX
  • Presence of a germline breast cancer (BRCA) mutation (regardless of transcriptomic signature) = FOLFIRINOX (tumors sensitive to platinum).
  • Predicted to be Gem-nabP sensitive and FOLFIRINOX resistant = Gem-nabP

Chemotherapy with FOLFIRINOX and Gemcitabine plus nab-paclitaxel will be administered as in routine practice, according to their approval. Dose adaptation will be allowed according to investigator's usual practice.

Study Type

Interventional

Enrollment (Estimated)

85

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Clichy, France, 92210
        • Recruiting
        • Hôpital Beaujon
        • Contact:
          • Louis DE MESTIER, MD
      • Créteil, France, 94010
        • Recruiting
        • Hôpital Henri Mondor
        • Contact:
          • Charlotte FENIOUX, MD
      • Lille, France, 59037
        • Recruiting
        • Hôpital Claude Hurriez
        • Contact:
          • Antony TURPIN, MD
      • Marseille, France, 13573
        • Recruiting
        • Institut Paoli-Calmettes
        • Contact:
          • Brice CHANEZ, MD
      • Reims, France, 51092
        • Recruiting
        • CHU Robert Debré
        • Contact:
          • Olivier BOUCHE, MD
      • Saint-Cloud, France, 92210
        • Recruiting
        • Institut Curie
        • Contact:
          • Aude GUILLEMIN, MD, PhD
      • Villejuif, France, 94800
        • Recruiting
        • Hôpital PAUL BROUSSE 12 Avenue Paul Vaillant Couturier
        • Contact:
          • Cindy NEUZILLET, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years to 71 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Written informed consent obtained from the patient prior to performing any protocol-related procedures, including screening evaluations.
  2. Willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations including follow up.
  3. Histologically or cytologically proven Pancreatic Ductal Adenocarcinoma (PDAC).
  4. Metastatic disease.
  5. Measurable or evaluable lesions according to RECIST v1.1 criteria.
  6. First-line therapy (previous neoadjuvant/adjuvant chemotherapy not allowed).
  7. Age ≥ 18 years (no upper limit, patients ≥ 75 years old must have a G8 score ≥ 14).
  8. 3. Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) 0-1.
  9. Availability of tumor tissue sample from the primary pancreatic tumor or liver metastasis (chemo-naïve) before inclusion in step 1.
  10. Adequate organ function, as defined by the following (blood test ≤ 7 days prior to inclusion):

    1. Serum aspartate aminotransferase (AST) and serum alanine aminotransferase (ALT) ≤ 3 x upper limit of normal (ULN) (≤ 5 ULN in case of liver metastases)
    2. Total serum bilirubin ≤ 1.5 ULN
    3. Serum albumin ≥ 28 g/L
    4. Hemoglobin ≥ 9.0 g/dl
    5. Absolute neutrophil count (ANC) ≥ 1,500/μL
    6. Platelets ≥ 100,000/μL
    7. Creatinine clearance ≥ 50 mL/min (MDRD).
  11. No Dihydropyrimidine dehydrogenase (DPD) deficiency (normal uracil level).
  12. Life expectancy ≥ 3 months.
  13. a. Evidence of post-menopausal status b. (or) negative urinary or serum pregnancy test for female pre-menopausal patients.
  14. Registration in a National Health Care System.

Exclusion Criteria:

  1. Concurrent enrolment in another interventional clinical study.
  2. Previous treatment with chemotherapy for pancreatic cancer.
  3. Uncontrolled massive pleural effusion or massive ascites.
  4. Known deficiency in UGT1A1 (homozygous UGT1A1*28 allele).
  5. Active bacterial, viral, or fungal infection requiring systemic therapy, including tuberculosis, hepatitis B (known positive Hepatitis B Virus surface antigen (HBsAg) result), hepatitis C (with positive RNA), Sars-Cov-2 or human immunodeficiency virus (positive HIV 1/2 antibodies).
  6. Diagnosis of any second malignancy within the last 3 years, except for adequately treated basal cell or squamous cell skin cancer, or in situ carcinoma of the cervix uteri.
  7. Known active central nervous system metastases and/or carcinomatous meningitis; patients with previously treated brain metastases may participate provided they are stable (without evidence of progression by imaging for at least 4 weeks prior to the first dose of trial treatment and any neurologic symptoms have returned to baseline).
  8. Uncontrolled intercurrent illness, including but not limited to, symptomatic congestive heart failure or coronary disease, peripheral artery disease, severe chronic obstructive pulmonary disease, decompensated cirrhosis, serious chronic gastrointestinal conditions associated with diarrhea, or psychiatric illness/social situations that would limit compliance with study requirement, substantially increase risk of incurring AEs or compromise the ability of the patient to give written informed consent.
  9. Live vaccine administration within 30 days prior to the first dose of study treatment.
  10. Known or suspected allergy or hypersensitivity to any of the study drugs or any of the study drug excipients.
  11. History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with participation for the full duration of the trial, or is not in the best interest of the participant, in the opinion of the treating investigator.
  12. Radiotherapy treatment to more than 30% of the bone marrow or with a wide field of radiation within 4 weeks of the first dose of study drug.
  13. Major surgical procedure (as defined by the Investigator) within 4 weeks prior to the first dose of trial treatment.
  14. Pregnancy/lactation.
  15. Person under legal protection or tutelage or guardianship.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Molecular screening for prediction of response
L1 chemotherapy regimen (FOLFIRINOX vs Gemcitabine plus nab-paclitaxel (GemnabP)) will be selected based on transcriptomic signatures applied to the pre-therapeutic biopsy of newly diagnosed PDAC patients.
Formalin-Fixed Paraffin-Embedded (FFPE) samples will be centralized in which nucleic acids extraction (DNA+RNA) and FFPE-compatible RNA-sequencing will be performed in real-time (≤28 days). RNAseq reads will be processed and all 5 transcriptomic signatures will be applied for prediction of response to 5FU, oxaliplatin, irinotecan, gemcitabine and taxane. In addition, biomarkers status will be obtained for all patients as part of good clinical practice.
Blood (serum and plasma) will be drawn at baseline, week 8, and tumor progression in order to look for surrogate biomarkers of tumor signatures in liquid biopsy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Objective Response Rate (ORR) at 4 months based on thorax-abdomen-pelvis (TAP) CT scan every 8 weeks according to RECIST v1.1.
Time Frame: 4 months
ORR, defined as the percentage of patients whose disease decreased by at least 30% (partial response - PR) and/or disappeared (complete response - CR) under treatment among patients who start treatment.
4 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression-Free Survival (PFS)
Time Frame: 18 months
PFS, defined as the time from the date of treatment initiation to the date of progression or death whatever the cause. Progression will be assessed by the investigator based on TAP-CT scan every 8 weeks according to RECIST v1.1.
18 months
Overall Survival (OS)
Time Frame: 18 months
OS, defined from the date of treatment initiation to the date of death whatever the cause.
18 months
Disease Control Rate (DCR)
Time Frame: 18 months
DCR, defined as the percentage of patients who have achieved complete response, partial response or stable disease according to RECIST v1.1 among patients who start treatment.
18 months
Treatment-related severe (grade 3-5) toxicities
Time Frame: 18 months
Toxicities will be graded, according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v5.0 (digestive, hematologic, neuropathy).
18 months
Feasibility of study procedure
Time Frame: 12 months
Measured as the rate of usable samples
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Study Director: Cindy NEUZILLET, MD, PhD, Hopital Paul Brousse

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 12, 2022

Primary Completion (Estimated)

December 11, 2028

Study Completion (Estimated)

December 11, 2028

Study Registration Dates

First Submitted

July 7, 2022

First Submitted That Met QC Criteria

July 25, 2022

First Posted (Actual)

July 26, 2022

Study Record Updates

Last Update Posted (Actual)

May 1, 2026

Last Update Submitted That Met QC Criteria

April 30, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Sponsor will share de-identified data sets. Documents generated under the project will be disseminated in accordance with Institut Curie policies.

IPD Sharing Time Frame

Data requests can be submitted starting 9 months after last article publication and will be made accessible for up to 12 months.

IPD Sharing Access Criteria

Access to trial individual participant data can be requested by qualified researchers engaging in independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a data sharing agreement (DSA).

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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