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Low Dose Radiation to Improve T-Cell Infiltration in Pancreatic Cancer

Randomised Phase I/II Trial in Order to Evaluate the Effect of Neoadjuvant Radiation on Tumor Infiltrating T-cells by Neoadjuvant Low-Dose-Radiation Therapy in Primarily Resectable Pancreatic Cancer

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01027221
Acronym
IMPACT2010
Enrollment
32
Registered
2009-12-07
Start date
2009-11-30
Completion date
2019-09-30
Last updated
2021-06-10

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

Conditions

Primarily Resectable Pancreatic Cancer

Keywords

Low Dose Radiation, pancreatic cancer, Immunostimulation

Brief summary

Principal purpose of the study is the determination of an active local external beam radiotherapy dose leading to a maximum number of tumor infiltrating T-cells.

Interventions

RADIATIONneoadjuvant photon radiation

single fraction, four dimensions (4D) planned, image guided, Radiation at a dose of 0,5 Gy in Intensity modulated radiotherapy (IMRT)-technique 2 days before resection

Sponsors

Heidelberg University
CollaboratorOTHER
German Cancer Research Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Radiological diagnosis of resectable pancreatic carcinoma is required prior to treatment. Potentially resectable is defined as no extrapancreatic disease, no evidence (on CT) of involvement of the celiac axis or superior mesenteric artery, no evidence (on CT or MRI) of occlusion of the superior mesenteric vein or superior mesenteric-portal venous confluence. * No evidence of metastatic disease as determined by chest CT scan, abdominal CT scan (or MRI) * 18 years of age or older * American Society of Anesthesiologists (ASA)- Performance status of 1 to 3 * Women of child bearing potential must practice adequate contraception and refrain from breast feeding. Female patients must have a negative pregnancy test within 7 days of treatment * Informed consent

Exclusion criteria

* Locally irresectable pancreatic cancer * distant metastases * medically unfit for surgery * Pregnant or lactating women * prior chemotherapy or radiation treatment * Other serious uncontrolled medical conditions that the investigator feels might compromise study participation * Unwillingness to participate or inability to comply with the protocol for the duration of the study * Major surgery, excluding laparoscopy, within 4 weeks of the start of study treatment, without complete recovery * Participation in other interventional trials

Design outcomes

Primary

MeasureTime frameDescription
Principal purpose of the study is the determination of an active local external beam radiotherapy dose leading to a maximal number of tumor infiltrating T-cells. The total T-cell activity serves as primary surrogate parameters for anti- tumoral activity1 yearPrincipal purpose of the study is the determination of an active local external beam radiotherapy dose leading to a maximal number of tumor infiltrating T-cells. The total T-cell activity serves as primary surrogate parameters for anti- tumoral activity

Secondary

MeasureTime frameDescription
surgical morbidity in patients undergoing pancreatic resection who received this protocol treatment1 yearsurgical morbidity in patients undergoing pancreatic resection who received this protocol treatment
frequencies of tumor-reactive T-cells in blood and bone marrow2 yearsfrequencies of tumor-reactive T-cells in blood and bone marrow
local control and recurrence patterns of pancreatic cancer relative to a standard as seen in historical controls5 yearslocal control and recurrence patterns of pancreatic cancer relative to a standard as seen in historical controls
expression of proinflammatory cytokines and activation-dependent, immune-associated transcriptionally factors in tumors and blood2 yearsexpression of proinflammatory cytokines and activation-dependent, immune-associated transcriptionally factors in tumors and blood
quality of life according to the EORTC QoL questionnaire after 6, 12, 18 and 24 months3 yearsquality of life according to the EORTC QoL questionnaire after 6, 12, 18 and 24 months
expression of migration-relevant adhesion molecules on tumor endothelial cells2 yearsexpression of migration-relevant adhesion molecules on tumor endothelial cells

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026