The effect of an additional Braun anastomosis in patients after pancreas head resections

Organizational Data

DRKS-ID:
DRKS00024364
Recruitment Status:
Recruiting ongoing
Date of registration in DRKS:
2021-04-28
Last update in DRKS:
2024-01-31
Registration type:
Prospective

Acronym/abbreviation of the study

RECOPS

URL of the study

No Entry

Brief summary in lay language

Along with operations on the esophagus and rectum, operations on the pancreas are among the high-risk procedures in the gastrointestinal tract. Depending on the experience of the center, mortality can rise to over 10%. In order to reduce the rate of complications, several options for reconstruction of the gastrointestinal passage have been presented. One of them is the so-called reconstruction according to Child, which provides an anastomosis of the pancreas, bile ducts and duodenum in pylorus-preserving operations or stomach in the classical variant on a single loop of small intestine. Regardless of the different reconstruction techniques, leaks of the anastomosis of the small bowel loop and the residual pancreas represent the main risk of postoperative mortality and for the occurrence of postoperative complications. To decrease the rate of leakage, this trial investigates the benefit of an additional anastomosis between the efferent and the afferent loop of the anastomosis of the small bowel loop and the duodenum. This should facilitate the outflow of the afferent small intestine, to which the anastomosis of the pancreas is attached, and at the same time reduce the risk of backflow of food and digestive juices from the efferent look.

Brief summary in scientific language

The pylorus-preserving partial pancreatoduodenectomy according to Transverso-Longmire is one of the most complex and demanding operations for surgeons as well as for patients. Depending on the expertise of the center as well as the surgeon, the mortality rate increases from less than 5% in centers specializing in pancreatic surgery to more than 10%. Pancreatic fistulas represent a major risk factor for postoperative mortality. Depending on the severity of the clinically relevant pancreatic fistula, the mortality rate increases to 40%. Several reconstruction techniques have been developed to minimize the risk of postoperative complications. The most commonly used reconstruction technique is the Child reconstruction. Here, the pancreaticojejunostomy, the hepaticojejunostomy, and the duodenojejunostomy are attached to a single jejunal loop. In this randomized-controlled study, the benefit of an additional anastomosis between the afferent and efferent loop of the duodenojejunostomy - also called Braun's anastomosis - is to be explored. This is intended to facilitate the outflow of bile and pancreatic fluids from the afferent loop while reducing reflux from the efferent loop, thus relieving the pressure on the pancreaticojejunostomy. This should reduce not only the rate of pancreatic fistulae but also the rate of postoperative complications per se.

Health condition or problem studied

ICD10:
C25.0 - Head of pancreas
ICD10:
C25.1 - Body of pancreas
ICD10:
K86.0 - Alcohol-induced chronic pancreatitis
ICD10:
K86.1 - Other chronic pancreatitis
ICD10:
C24.0 - Extrahepatic bile duct
ICD10:
C24.1 - Ampulla of Vater
ICD10:
C24.8 - Overlapping lesion of biliary tract
ICD10:
C24.9 - Biliary tract, unspecified
ICD10:
K86.8 - Other specified diseases of pancreas
ICD10:
K86.9 - Disease of pancreas, unspecified
Healthy volunteers:
No

Interventions, Observational Groups

Arm 1:
Patients after pylorus-preserving pancreaticoduodenectomy followed by Child reconstruction and an additional Braun anastomosis between afferent and efferent loop of the gastrojejunostomy
Arm 2:
Patients after pylorus-preserving pancreaticoduodenectomy followed by Child reconstruction

Endpoints

Primary outcome:
Incidence of clinically relevant POPF according to the current definition of the International Study group of Pancreatic surgery (ISGPS) within a postoperative period of 30 (+10) days
Secondary outcome:
1. Incidence and severity of clinically relevant postoperative delayed gastric emptying according to ISPGS-definition (30 POD) 2. Incidence and severity of postoperative haemorrhages according to ISGPS-definition (30 POD) 3. Incidence and severity of postoperative complications according to the Clavien-Dindo classification within 30 days after surgery 5. Complication comprehensive index after operation during hospital stay 6. In-hospital, 30- and 90-day mortality rates 7. Incidence of reoperations and reinterventions 8. Incidence of anastomotic leaks of the Braun enteroenterostomy 9. Quality of life after pancreas resection (EORTC QLQ-C30) 10. Length of hospital stay (measured between day 0 of the operation and discharge) 11. Length of stay on ICU (measured from day 0 of the operation) 12. Histopathological tumor stage 13. Postoperative pain according to the Visual Analogue Scale (VAS 0-10) 14. Incidence of re-admission within the duration of the study after discharge

Study Design

Purpose:
Treatment
Allocation:
Randomized controlled study
Control:
  • Control group receives no treatment
Phase:
III
Study type:
Interventional
Mechanism of allocation concealment:
No Entry
Blinding:
Yes
Assignment:
Parallel
Sequence generation:
No Entry
Who is blinded:
  • Assessor
  • Patient/subject

Recruitment

Recruitment Status:
Recruiting ongoing
Reason if recruiting stopped or withdrawn:
No Entry

Recruitment Locations

Recruitment countries:
  • Germany
Number of study centers:
Multicenter study
Recruitment location(s):
  • University medical center TU München München
  • University medical center Universitätsklinikum Heidelberg, Chirurgische Klinik Heidelberg
  • University medical center Universitätsklinikum Bochum, Chirurgische Klinik Bochum
  • University medical center LMU, Chirurgie München
  • University medical center Uniklinik Köln, Standort Witten/Herdecke Köln
  • University medical center UKE Hamburg
  • University medical center Uniklinik Freiburg Freiburg
  • University medical center Universitätsklinikum Halle Halle Saale
  • University medical center Universitätsklinikum Würzburg Würzburg
  • University medical center Universitätsklinikum Dresden Dresden
  • University medical center Universitätsklinikum Mannheim Mannheim
  • University medical center Universitätsklinikum Schleswig Holstein Lübeck Lübeck
  • University medical center Universitätsklinikum Erlangen Erlangen
  • Medical center BETHESDA Krankenhaus Duisburg

Recruitment period and number of participants

Planned study start date:
2022-02-01
Actual study start date:
2022-04-08
Planned study completion date:
No Entry
Actual Study Completion Date:
No Entry
Target Sample Size:
616
Final Sample Size:
No Entry

Inclusion Criteria

Sex:
All
Minimum Age:
18 Years
Maximum Age:
99 Years
Additional Inclusion Criteria:
1. Patients with benign or malignant diseases of the pancreas, the distal bile duct and the duodenum requiring a pylorus-preserving pancreaticoduodenectomy 2. Surgical reconstruction by Child reconstruction defined as pancreaticojejunostomy followed by hepaticojejunostomy followed by duodenojejunostomy 3. Age ≥ 18 years. 4. Ability to understand the character and individual consequences of the trial and to sign the informed consent

Exclusion Criteria

1. Patients undergoing classical Kausch-Whipple resection 2. Patients undergoing pylorus-preserving pancreaticoduodenectomy with requirement of intraoperative arterial resection 3. Patients with pylorus-preserving pancreaticoduodenectomy with requirement of multivisceral resections 4. Laparoscopic or laparoscopic-assisted pancreatic surgery 5. Distal pancreatectomy 6. Enucleations 7. Patients after previous major GI-surgery in medical history 8. Pregnant or breast-feeding women 9. Planned re-laparotomy up to 30 days after initial surgery Emergency surgery

Addresses

Primary Sponsor

Address:
Klinikum Rechts der Isar der TU München
Ismaninger Strasse 22
81675 München
Germany
Telephone:
+49 89 4140 0
Fax:
+49 89 4140 2184
Contact per E-Mail:
Contact per E-Mail
URL:
http://www.chir.med.tum.de
Investigator Sponsored/Initiated Trial (IST/IIT):
Yes

Contact for Scientific Queries

Address:
Klinikum Rechts der Isar der TU München
Dr. Stephan Schorn
Ismaninger Straße 22
81675 München
Germany
Telephone:
+498941405089
Fax:
+498941402184
Contact per E-Mail:
Contact per E-Mail
URL:
http://www.chir.med.tum.de

Contact for Public Queries

Address:
Klinik und Poliklinik für Chirurgie der TU München
Prof. Dr. Daniel Reim
Ismaninger Strasse 22
81675 München
Germany
Telephone:
+498941405019
Fax:
+498941402184
Contact per E-Mail:
Contact per E-Mail
URL:
http://www.chir.med.tum.de

Principal Investigator

Address:
Klinikum Rechts der Isar der TU München
Dr. Stephan Schorn
Ismaninger Straße 22
81675 München
Germany
Telephone:
+498941405089
Fax:
+498941402184
Contact per E-Mail:
Contact per E-Mail
URL:
http://www.chir.med.tum.de

Sources of Monetary or Material Support

Public funding institutions financed by tax money/Government funding body (German Research Foundation (DFG), Federal Ministry of Education and Research (BMBF), etc.)

Address:
Deutsche Forschungsgemeinschaft
Kennedyallee 40
53175 Bonn
Germany
Telephone:
No Entry
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
http://www.dfg.de

Ethics Committee

Address Ethics Committee

Address:
Ethikkommission der Fakultät für Medizin der Technischen Universität München
Ismaninger Str. 22
81675 München
Germany
Telephone:
+49-89-41404371
Fax:
+49-89-41404199
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Vote of leading Ethics Committee

Vote of leading Ethics Committee
Date of ethics committee application:
2020-12-11
Ethics committee number:
775/20 S
Vote of the Ethics Committee:
Approved
Date of the vote:
2021-04-06

Further identification numbers

Other primary registry ID:
No Entry
EudraCT Number:
No Entry
UTN (Universal Trial Number):
No Entry
EUDAMED Number:
No Entry

IPD - Individual Participant Data

Do you plan to make participant-related data (IPD) available to other researchers in an anonymized form?:
No
IPD Sharing Plan:
No Entry

Study protocol and other study documents

Study protocols:
Study Protocol RECOPS Version 3.0
Study abstract:
No Entry
Other study documents:
No Entry
Background literature:
No Entry
Related DRKS studies:
No Entry

Publication of study results

Planned publication:
No Entry
Publikationen/Studienergebnisse:
No Entry
Date of first publication of study results:
No Entry
DRKS entry published for the first time with results:
No Entry

Basic reporting

Basic Reporting / Results tables:
No Entry
Brief summary of results:
No Entry