2021-05-26
2022-03-07
2025-12
8
NCT04835402
Aalborg University Hospital
Aalborg University Hospital
INTERVENTIONAL
Electroporation Potentiated Immunotherapy in Cancer
The study is investigating the efficacy and safety of combined irreversible electroporation (IRE) and checkpoint inhibition in metastatic pancreatic cancer.
The aim of the study is to investigate whether checkpoint inhibition in conjunction with IRE of a single liver metastasis can elicit a systemic anticancer immune response in patients with pancreatic cancer. Adult patients, in WHO performance status 0-1, with liver metastatic pancreatic cancer, intolerant to or progressing on first or further lines of chemotherapy can enter the trial. Pembrolizumab infusion is given every six weeks for up to six months. IRE of a single liver metastasis is performed between the first and second pembrolizumab infusion. Response to the therapy is examined by CT (RECIST) on non-IRE-ablated lesions every 2 months. Assessments of changes in peripheral blood immune cell composition, tumor gene expression and tumor infiltrating lymphocytes is performed on serial biopsies and blood samples.
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 |
---|---|---|
2021-03-24 | N/A | 2022-03-08 |
2021-04-06 | N/A | 2022-03-09 |
2021-04-08 | N/A | 2022-03 |
This section provides details of the study plan, including how the study is designed and what the study is measuring.
Primary Purpose:
Treatment
Allocation:
Na
Interventional Model:
Single Group
Masking:
None
Arms and Interventions
Participant Group/Arm | Intervention/Treatment |
---|---|
EXPERIMENTAL: Intervention Day 1: Pembrolizumab 400mg Day 10: Irreversible electroporation Day 42/84/126/168: Pembrolizumab 400mg | DRUG: Pembrolizumab
DEVICE: Irreversible electroporation
|
Primary Outcome Measures | Measure Description | Time Frame |
---|---|---|
Objective response rate (ORR) according to RECIST 1.1 | (in patients receiving at least one dose of pembrolizumab, IRE and an evaluable CT-scan) | 6 months after treatment start |
Serious adverse reaction (SAR) rate according to CTCAE v5 | (in patients receiving at least one dose of pembrolizumab) | cumulative after 12 months after treatment start |
Secondary Outcome Measures | Measure Description | Time Frame |
---|---|---|
Median overall survival | Through study completion, an average of 1 year | |
Median progression-free survival | Through study completion, an average of 1 year | |
ORR | (in patients that have received at least one dose of pembrolizumab and an evaluable CT-scan) | 2 months, 4 months and 6 months after treatment start |
Clinical benefit ratio | (defined as objective response or stable disease for at least 8 weeks during treatment in patients receiving at least one dose of pembrolizumab, IRE and an evaluable CT-scan) | 8 weeks after treatment start |
Serum CA-19-9 response | (response defined as a decrease of at least 20 % observed during treatment in patients with elevated CA 19-9 at baseline) | 2 months, 4 months and 6 months after treatment start |
Survival rate | 6 months and 12 months after treatment start | |
Progression-free survival rate | 6 months and 12 months after treatment start | |
Mean difference in perceived quality of life measured by EORTC QLQ-C30 v3 | (for subscales: Global health status, Physical functioning, Fatigue, Nausea and vomiting, Pain, Appetite loss and Diarrhea) | 2 months, 4 months, 6 months, 8 months, 10 months and 12 months after treatment start |
Mean difference in nutrition status measured by PG-SGA-SF | (difference in total numerical score of the patient-generated subjective global assessment (short form) PG-SGA(c) SF (range 0-37, lower is better) | 2 months, 4 months, 6 months, 8 months, 10 months and 12 months after treatment start |
Difference in peripheral blood naïve T cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood effector memory T cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood central memory T cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood effector T cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood terminally differentiated effector T cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood exhausted T cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood regulatory T cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood conventional dendritic cell type 1 count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood conventional dendritic cell type 2 count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood plasmacytoid dendritic cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Difference in peripheral blood myeloid-derived suppressor cell count prior to IRE-treatment, 1 day after IRE-treatment and 6 weeks after IRE-treatment compared to baseline | (based on flow cytometry measures of naïve, EM, CM, EFF, TE, EX T cells, Tregs, cDC1, cDC2, pDC and MDSC concentrations) | 8 days, 11 days, 52 days after treatment start |
Histological tumor regression grade in tumor biopsies after pembrolizumab and after pembrolizumab + IRE compared to baseline | (based on the CAP regression grading system) | 10 days and 52 days after treatment start |
Difference in tumor RNA expression after pembrolizumab and after pembrolizumab + IRE compared to baseline | (based on NanoString RNA panCancer IO 360 gene panel. Analysis will explore the cancer-immunological mechanisms of the therapy in order to guide future studies. No specific outcomes are predetermined) | 10 days and 52 days after treatment start |
Difference in (histological) tumor infiltrating leukocyte (TIL) pattern after pembrolizumab and after pembrolizumab + IRE compared to baseline | (Based on analysis by immunohistochemistry. The relative concentration of leukocytes will be estimated and compared. The exact subpopulations of leukocytes will be based on the findings in outcomes 12 and 14, to validate the results) | 10 days and 52 days after treatment start |
Adverse event rate (CTCAEv5, all grades) | (all events registered during active treatment and follow-up) | cumulative after 12 months after treatment start |
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
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:
This is where you will find people and organizations involved with this study.
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