- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03649035
Eus-guided Cryothermal Ablation in Stage III Pancreatic Adenocarcinoma
Use of the Eus-guided Cryothermal Ablation in the Multimodality Approach to Patients With Stage III (Locally Advanced and Borderline Resectable) Pancreatic Adenocarcinoma
Pancreatic cancer represents the 11th most commonly diagnosed cancer in men and 9th in women, being the third leading cause of cancer-related death in the Western countries. Pancreatic cancer has a very poor prognosis and median overall survival is less than 5 months in population-based studies. Approximately 80% of patients with pancreatic cancer present with unresectable disease, which is either due to locally advanced or metastatic disease. About 40% of patients have metastases at the time of diagnosis and in another 30 to 40 % of the patients tumour resection is not feasible because of vascular invasion, or poor general conditions. In resectable patients surgical resection with negative margins (R0) continues to be worldwide considered the only chance to cure, however, this standard treatment is usually reserved to a small number of patients. In patients with locally advanced tumour, neoadjuvant treatment has been proposed in various modalities as a way to decrease size and downstage the tumour leading to a resectable disease. Several phase I - II studies have shown the capability of chemotherapy alone or chemo radiotherapy based regimens to increase the resection rates of these patients and the related median overall survival.
Systemic chemotherapy followed by chemoRT or stereotattic body radiation therapy (SBRT) is an option for selected patients with unresectable disease and good PS who have not developed metastatic disease.
This sequence is especially recommended in cases in which it is highly unlikely that the patient will become resectable (ie, complete encasement of SMA/superior celiac artery). Due to the significant rate of toxicity of the radio therapy (RT) treatment alone or in adjunct to chemotherapy, other local treatments with the goal to downstage the primary tumour with less or no toxicity as compared to RT have been proposed.
Radiofrequency (RF) has been used with success in solid cancers like the hepatocellular carcinoma while cryoablation has been used for breast and renal cancers. RFA has been applied in few clinical trials in human pancreatic cancer either without any imaging guidance or just under intra-operatory ultrasound control during palliative open surgery.
The HybridTherm probe (HTP), (ERBE Elektromedizin GmbH, Tübingen, Germany) combines bipolar RF-ablation with cryogenic induced cooling. A bipolar radiofrequency system creates ablation with less collateral thermal damage than standard monopolar systems but with the trade-off to lose overall efficiency.
In a recent in-vivo study the feasibility of the HTP in patients with unresectable locally advanced pancreatic adenocarcinoma has been shown. HTP has been applied under EUS-guidance to patients who have been already treated by chemotherapy (two lines) and in many cases with the adjunct of RT.
Study Overview
Status
Intervention / Treatment
Study Type
Phase
- Phase 3
Contacts and Locations
Study Locations
-
-
Milano
-
Rozzano, Milano, Italy, 20089
- Istituto Clinico Humanitas
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion criteria:
- Only patients with pathologically proven, locally advanced, unresectable pancreatic adenocarcinoma will be selected.
- The criteria for unresectability will be: encasement or thrombosis of one or more large vessels surrounding the pancreas (celiac axis, portal vein, and/or superior mesenteric artery and/or vein, and/or hepatic artery, except the splenic vessels); infiltration of the vessel wall or contact 180° for more than 2 cm length, with initial stricture of the vessel or alteration of the Doppler signal (each patient will undergo thoracic and abdominal-CT with contrast medium to check resectability and detect the absence of distant metastasis).
Esclusion criteria:
- Patients with pancreatic tumors other than pancreatic adenocarcinoma (PDAC)
- Patients with resectable, borderline resectable or metastatic PDAC
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of participants with feasible EUS-guided Cryothermal Ablation
Time Frame: The day of procedure
|
The procedure will be defined as "feasible" if the placement of the probe inside the tumor will be successful and "not feasible" if it will not be possible to place the probe inside the lesion because of difficulties such as hardness of the tumor, stiffness of the GI wall, or interposition of vessels
|
The day of procedure
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Progression-free survival
Time Frame: 6 months after the procedure
|
To demonstrate the efficacy of the HybridTherm probe in the control of the tumour progression in terms of progression-free survival, measured at 6-month after therapy onset (PFS-6) by MRI. PFS-6 takes in consideration the tumour growth in relation to the volume/size evaluated as a difference between the previous and the current examination. In practice, it is the time interval between the enrolment of the patient and the first radiological evidence of tumor progression. |
6 months after the procedure
|
Number of participants with treatment-related adverse events
Time Frame: 30 days after the procedure
|
Complications will be recorded and laboratory and radiologic follow-up will be performed to detect them.
|
30 days after the procedure
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- HTP1
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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