ToPanc Trial: Survival After Total Versus Partial Pancreaticoduodenectomy for Adenocarcinoma of the Pancreatic Head, Distal Cholangiocarcinoma, and Ampullary Cancer

NCT ID: NCT06801899

Last Updated: 2025-09-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

170 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-12

Study Completion Date

2029-07-31

Brief Summary

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The goal of this clinical trial is to learn if total removal of the pancreas is a preferable alternative to partial removal in patients with cancer of the pancreatic head who are at high risk of pancreatic leakage. The main question it aims to answer is:

Does total pancreas removal improve survival without reducing quality of life compared to partial removal?

The only study specific procedures are the collection of 2 blood samples (7.5ml for each time point, preoperatively and during the hospitalisation) and the completion of the questionnaires.

Detailed Description

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The pancreas is located in the upper abdomen and has 2 main functions: Production of digestive juices and of insulin, the latter being most important for blood sugar regulation and energy conservation. Certain types of cancer in the pancreatic head are very aggressive, but with complete surgical removal of the tumor and additional chemotherapy cure is possible. For tumor resection, the head of the pancreas as well as duodenum and part of the bile duct are removed. 3 new connections are built: the remaining pancreas, bile duct and stomach are connected to a loop of small intestine.

This operation takes around 6 hours and leads to complications in 20-30% of cases. A serious complication and unfortunately the most frequent is the leaking of the pancreas remnant, with outflow of the aggressive digestive juice into the surrounding tissue. Consequences may be severe bleeding and/or infections. Many studies show that affected patients have an increased risk of tumor recurrence and a reduced survival.

To avoid pancreatic leak, the entire pancreas can be removed. So far, removal of the whole pancreas has only been chosen in cases of very advanced cancer. After both, partial or total pancreas removal, patients need to substitute digestive enzymes. This can be done by capsules, which need to be taken with every meal. But while some patients after partial removal maintain sufficient function to produce insulin, all patients after total removal are diabetic and need insulin injections. In the past, blood sugar control in the absence of insulin production was difficult and accompanied by low quality of life (QoL). This has changed tremendously by the introduction of continuous glucose monitoring (sensors, which are attached to the arm) and automated insulin delivery systems (also known as "artificial pancreas"). This development renders total pancreas removal a reasonable alternative, with the advantage, that only 2 new connections are made: One between the bile duct and small intestine and one between the stomach and the small intestine.

Study question: Is removal of the whole pancreas in patients at high risk of a pancreatic leakage a preferable alternative to partial removal?

For this study, patients with cancer of the pancreatic head who are planned for surgery can be included. These patients will be randomly assigned to two groups:

1. Standard group: partial removal of the pancreas
2. Study group: total removal of the pancreas

Both techniques are safe and are established techniques to treat cancer in the pancreatic head. After the operation, many clinical data will be recorded. The two most important factors will be survival and quality of life, which will be assessed by questionnaires on a regular base. Additionally, postoperative complications, chemotherapy rates, tumor recurrence and many more data will be monitored.

Conditions

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Pancreatic Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Total pancreatectomy (TP)

Group Type EXPERIMENTAL

Total pancreatectomy (TP)

Intervention Type PROCEDURE

The investigators perform TP in patients who undergo surgical resection of a malignant tumor in the pancreatic head.

Pancreaticoduodenectomy (PD)

Group Type ACTIVE_COMPARATOR

Partial pancreaticoduodenectomy (PD)

Intervention Type PROCEDURE

The investigators perform partial PD with anastomosis of the pancreas in patients who undergo surgical resection of a malignant tumor in the pancreatic head. This is the current standard procedure.

Interventions

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Total pancreatectomy (TP)

The investigators perform TP in patients who undergo surgical resection of a malignant tumor in the pancreatic head.

Intervention Type PROCEDURE

Partial pancreaticoduodenectomy (PD)

The investigators perform partial PD with anastomosis of the pancreas in patients who undergo surgical resection of a malignant tumor in the pancreatic head. This is the current standard procedure.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Adult patients (age ≥ 18 years) scheduled to undergo PD for highly suspected or histologically proven, resectable pancreatic ductal adenocarcinoma (PDAC), distal cholangiocarcinoma (DCC), and/or ampullary cancer (pancreaticobiliary type)
* Suspected pancreas anastomosis at high-risk for development of a postoperative pancreatic fistula (POPF) (grade "D" according to Schuh et al. (29): Estimation by CT scan, MRI, and/or Endoscopic Ultrasound
* Written informed consent

Exclusion Criteria

* Duodenal carcinoma, ampullary cancer (intestinal type), neuroendocrine tumors, benign tumors, chronic pancreatitis
* Medical conditions that do not allow appreciation of the nature, scope, and possible consequences of the trial as judged by the investigator
* Pregnancy. A beta-Human Chorionic Gonadotropin (bHCG) pregnancy test must to be performed for women of child-bearing potential (defined as premenopausal women who have not undergone surgical sterilization)
* Inability to follow the study procedures, e.g., due to psychological disorders, dementia, etc.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Insel Gruppe AG, University Hospital Bern

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Anna S Wenning, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Department of Visceral Surgery and Medicine Inselspital, Bern University Hospital

Locations

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Department of Surgery, Kantonsspital Baden

Baden, , Switzerland

Site Status RECRUITING

Department of Visceral Surgery, University Hospital Basel

Basel, , Switzerland

Site Status NOT_YET_RECRUITING

Inselspital, Bern University Hospital

Bern, , Switzerland

Site Status RECRUITING

Department of Visceral Surgery, University Hospital Geneva

Geneva, , Switzerland

Site Status RECRUITING

Department of General, Visceral, Endocrine and Transplantation Surgery, Kantonsspital St. Gallen

Sankt Gallen, , Switzerland

Site Status RECRUITING

Department of Surgery, Stadtspital Triemli Zürich

Zurich, , Switzerland

Site Status NOT_YET_RECRUITING

Department of Surgery and Transplantation, University Hospital Zürich

Zurich, , Switzerland

Site Status RECRUITING

Countries

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Switzerland

Central Contacts

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Anna S Wenning, MD, PhD

Role: CONTACT

+41 (0)31 632 71 41

Nadine Uebersax

Role: CONTACT

+41 (0)31 684 33 69

Facility Contacts

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Prof. Dr. med. Antonio Nocito

Role: primary

+41 56 486 30 02

Prof. Dr. med. Beat Müller

Role: primary

+41 61 777 73 03

Anna S Wenning, MD, PhD

Role: primary

Prof. Dr. med. Christian Toso

Role: primary

+41 22 372 77 02

PD Dr. med. Ignazio Tarantino

Role: primary

+41 71 494 13 12

Dr. med. Stefan Gutknecht

Role: primary

+41 44 416 43 61

Prof. Dr. med. José Oberholzer

Role: primary

+41 44 255 33 00

Other Identifiers

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2024-02010

Identifier Type: -

Identifier Source: org_study_id

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