Evidence map›Paper›PMID 37254179›Full record

ArticleTrials2023

Conventional partial pancreatoduodenectomy versus an extended pancreatoduodenectomy (triangle operation) for pancreatic head cancers-study protocol for the randomised controlled TRIANGLE trial.

Patrick Heger, Thilo Hackert, Markus K Diener, Manuel Feißt, Christina Klose, Colette Dörr-Harim, Friedhelm Möhlenbrock, Markus W Büchler, André L Mihaljevic

Open access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in Trials, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.1field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 9 citations in OpenAlex.

  1. Pancreatic Cancer Frequently Infiltrates the TRIANGLE Compartment: A Surgical Option to Prevent Local Recurrence.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Patrick HegerDepartment of General and Visceral Surgery and Clinical Trial Centre of the Department of General and Visceral Surgery (ulmCARES), University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
Thilo HackertDepartment of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany.
Markus K DienerDepartment of General and Visceral Surgery, University Hospital Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany.
Manuel FeißtInstitute of Medical Biometry (IMBI), University of Heidelberg, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany.
Christina KloseInstitute of Medical Biometry (IMBI), University of Heidelberg, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany.
Colette Dörr-HarimDepartment of General and Visceral Surgery and Clinical Trial Centre of the Department of General and Visceral Surgery (ulmCARES), University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
Friedhelm MöhlenbrockArbeitskreis der Pankreatektomierten e.V, Thomas-Mann-Straße 40, 53111, Bonn, Germany.
Markus W BüchlerDepartment of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany.
André L MihaljevicDepartment of General and Visceral Surgery and Clinical Trial Centre of the Department of General and Visceral Surgery (ulmCARES), University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany. andre.mihaljevic@uni-ulm.de.ORCID http://orcid.org/0000-0003-1902-657X
Heidelberg University · DEUniversität Ulm · DEUniversity Medical Center Freiburg · DE

Funding

Bundesministerium für Bildung und Forschung 01KG2129
6 · The paper itself

Abstract

backgroundPancreatic ductal carcinoma (PDAC) is the fourth most frequent cause of cancer-related death in the Western world, and its incidence is rising. In patients that undergo curative resection, local recurrence (LR) is frequent. A recently described surgical technique of extended pancreatoduodenectomy (PD) termed the TRIANGLE operation has been proposed as a promising approach to reduce LR and improve disease-free survival in PDAC patients.

methodsThe TRIANGLE trial is a multicentre confirmatory randomised controlled superiority trial with two parallel study groups. A total of 270 patients with suspected or histologically confirmed pancreatic head cancer scheduled for PD will be included in the trial and randomly assigned to the intervention group (extended PD defined as Inoue level 3 dissection along the superior mesenteric and celiac artery as well as removal of all soft tissue in the so-called triangle between the celiac artery, the SMA and the mesenterico-portal axis) or the control group (conventional PD with lymphadenectomy and removal of soft tissue according to current guidelines). The primary endpoint of the trial will be the disease-free survival of patients. Other perioperative outcomes as well as oncological parameters and patient-reported outcomes will be analysed as secondary outcomes. DISCUSSION: Despite multimodal treatment, LR remains high and disease-free survival is limited following PD for PDAC. The TRIANGLE operation could address these shortcomings of conventional PD as indicated in several retrospective studies. However, this technique could be associated with more adverse events for patients including intractable diarrhoea. The TRIANGLE trial will close the evidence gap as well as offer a risk-benefit assessment of this more radical approach to PD.

trial registrationGerman Clinical Trials Register DRKS00030576 (UTN U1111-1243-4412) 19th December 2022.

Indexed as

Carcinoma, Pancreatic DuctalHead and Neck NeoplasmsPancreatic NeoplasmsEquivalence Trials as TopicHumansMulticenter Studies as TopicPancreasPancreaticoduodenectomyRandomized Controlled Trials as TopicRetrospective StudiesCarcinomaPancreatic ductalPancreatic neoplasmsPancreaticoduodenectomyRandomised controlled trial

Identifiers

PMID37254179
PMCPMC10228091
OpenAlexW4378783294

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.