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Immune Response After Pancreatic Cancer Treatment


2017-02-15


2020-02-25


2020-02-25


38

Study Overview

Immune Response After Pancreatic Cancer Treatment

The aim of this project is to describe the differential immunologic responses of patients who undergo in situ IRE, margin accentuation IRE with surgical resection of the primary tumor, and surgical resection of the primary tumor only. The primary hypothesis is that IRE induces a long and sustained activation of the cell-mediated immune system, which is distinct from the immune response after surgical resection only. The primary endpoint of this study is the comparison of the CD4+/CD8+ ratio as an indicator of antitumor immunity both longitudinally within a group after the intervention and over time between the three groups. CD4+/CD8+ ratio will be measured preoperatively and at postoperative days 1, 7, 42, and 180. As a secondary outcome, additional measurements will be taken to more specifically characterize the immune response based on peripheral blood samples. Flow cytometry will be used to quantify cell subsets, and ELISA will be used to measure cytokine levels , at the same time-points as for the primary outcome. Each group of patients as described above will consist of 10 consecutive pancreatic cancer patients. Patients aged 18 or older with resectable, borderline resectable, or locally advanced pancreatic cancer will be included. Patients with locally advanced disease will undergo 3 months of preoperative chemotherapy with monitoring to exclude metastatic disease. Main exclusion criteria are cardiac conduction abnormalities and signs of distant metastasis.

N/A

  • Pancreatic Cancer
  • PROCEDURE: irreversible electroporation (IRE)
  • 2016-02037

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 Registration Dates Results Reporting Dates Study Record Updates

2016-12-20  

N/A  

2020-02-25  

2017-03-02  

N/A  

2020-02-26  

2017-03-03  

N/A  

2020-02  

Study Plan

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

Design Details

Primary Purpose:
N/A


Allocation:
N/A


Interventional Model:
N/A


Masking:
N/A


Arms and Interventions

Participant Group/ArmIntervention/Treatment
: 10 IRE locally advanced

patients undergoing in situ IRE for locally advanced pancreatic

PROCEDURE: irreversible electroporation (IRE)

  • Irreversible electroporation is an emerging, mainly non-thermal ablative modality. It circumvents some downsides of thermal ablation and has the potential for broad application among patients with pancreatic cancer.
: 10 IRE borderline resection

patients undergoing margin accentuation IRE for borderline resectable disease

PROCEDURE: irreversible electroporation (IRE)

  • Irreversible electroporation is an emerging, mainly non-thermal ablative modality. It circumvents some downsides of thermal ablation and has the potential for broad application among patients with pancreatic cancer.
: 10 resection only

patients undergoing surgical resection only

Primary Outcome MeasuresMeasure DescriptionTime Frame
Immunological outcomeflowcytometry42 days
Immunological outcomeFlowcytometry6 months
Immunological outcomeFlowcytometry9 months
Immunological outcomeELISA42 days
Immunological outcomeELISA6 months
Immunological outcomeELISA9 months
Secondary Outcome MeasuresMeasure DescriptionTime Frame
Number of local tumor recurrencesmeasured via CT42 days
Number of local tumor recurrencesmeasured via CT3 months
Number of local tumor recurrencesmeasured via CT6 months
Number of local tumor recurrencesmeasured via CT9 months
Number of distant tumor recurrencesmeasured via CT42 days
Number of distant tumor recurrencesmeasured via CT3 months
Number of distant tumor recurrencesmeasured via CT6 months
Number of distant tumor recurrencesmeasured via CT9 months
Overall survivalsurvival of patient42 days
Overall survivalsurvival of patient3 months
Overall survivalsurvival of patient6 months
Overall survivalsurvival of patient9 months
Cancer specific survivalsurvival of patient42 days
Cancer specific survivalsurvival of patient3 months
Cancer specific survivalsurvival of patient6 months
Cancer specific survivalsurvival of patient9 months

Contacts and Locations

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

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.

Ages Eligible for Study:
ALL

Sexes Eligible for Study:
18 Years

Accepts Healthy Volunteers:

    Inclusion Criteria:

  • Age ≥ 18 years
  • Able to undergo general anesthesia (ASA ≤ 4)
  • Performance status ECOG <=2 (Eastern Cooperative Oncology Group)
  • Life expectancy of at least 6 months
  • Resectable, borderline resectable, or locally advanced pancreatic cancer
  • Patients who have locally advanced disease have to show no tumor progression after 3 month of neo-adjuvant chemotherapy+/-XRT before undergoing in situ IRE

  • Exclusion Criteria:

  • Cardiac AV conduction abnormalities, ventricular fibrillation
  • History of epilepsy
  • Recent history of myocardial infarction (2 months)
  • Evidence of distant metastasis (e.g. liver, lung, peritoneum)
  • Informed consent cannot be given by the patient
  • Known hypersensitivity to the IRE electrodes (stainless steel 304L)
  • Women of childbearing potential who are pregnant, breast feeding, or not taking an adequate method of contraception at the time of procedure

Collaborators and Investigators

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


    • PRINCIPAL_INVESTIGATOR: Mathias Worni, MD, Inselspital Berne

    Publications

    The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

    General Publications

    No publications available