Evidence map›Paper›PMID 40526592›Full record

ArticlePloS one2025

A multicenter prospective study to determine the optimal range of lymph node dissection in pancreatic cancer surgery after neoadjuvant chemotherapy (LYMRIN-Trial): Project study by the Japan Pancreas Society and JON 2302-P.

Nana Kimura, Yoshihiro Shirai, Ayaka Itoh, Katsuhisa Hirano, Kazuto Shibuya, Kenta Murotani, Makoto Ueno, Sohei Satoi, Hiroaki Nagano, Junji Furuse and 3 more

Abstract readMulticenter Study
In one paragraph

Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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

13 authors.

Nana KimuraDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.
Yoshihiro ShiraiDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.ORCID https://orcid.org/0000-0002-4907-0101
Ayaka ItohDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.
Katsuhisa HiranoDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.
Kazuto ShibuyaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.ORCID https://orcid.org/0000-0002-9969-5644
Kenta MurotaniBiostatistics Center, Kurume University Graduate School of Medicine, Kurume, Fukuoka, Japan.ORCID https://orcid.org/0000-0003-0623-9365
Makoto UenoDepartment of Gastroenterology, Kanagawa Cancer Center, Yokohama, Kanagawa, Japan.
Sohei SatoiDepartment of Surgery, Kansai Medical University, Osaka, Japan.
Hiroaki NaganoDepartment of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan.
Junji FuruseDepartment of Gastroenterology, Kanagawa Cancer Center, Yokohama, Kanagawa, Japan.
Yoshifumi TakeyamaDepartment of Surgery, Kindai University Faculty of Medicine, Osaka, Japan.
Tsutomu FujiiDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.ORCID https://orcid.org/0000-0003-0625-1911
LYMRIN-Trial collaborators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionClear evidence regarding the optimal extent of lymph node dissection during pancreatectomy for pancreatic ductal adenocarcinoma (PDAC) is lacking. The index of estimated benefit of lymph node dissection is useful for evaluating the effectiveness of dissection at each lymph node station, but a prospective study is needed for accurate assessment. The aim of the LYMRIN trial is to determine the optimal station of lymph node dissection in pancreatectomy after neoadjuvant chemotherapy using gemcitabine and S-1 (GS) by evaluating the rate of lymph node metastasis and the index of estimated benefit of each type of lymph node dissection.

methodsThis multicenter prospective interventional trial in Japan that will include a total of 545 PDAC patients (head: 200 patients, body: 165 patients, and tail 180 patients) from 42 leading institutions and hospitals in Japan. Patients diagnosed with resectable PDAC after neoadjuvant GS therapy will be considered eligible for inclusion. Eligible patients will undergo pancreatoduodenectomy or distal pancreatectomy with regional lymph node dissection. The primary endpoint is the percentage of metastases in each lymph node station. DISCUSSION: The results of this study will clarify the optimal extent of lymph node dissection, allowing for a more conservative surgical approach, thereby avoiding unnecessary invasive procedures for patients.

trial registrationUniversity Hospital Medical Information Network Clinical Trials Registry, UMIN 000051879. Registered 1 October 2023, https://center6.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000059119.

Indexed as

Carcinoma, Pancreatic DuctalLymph Node ExcisionPancreatic NeoplasmsAgedDeoxycytidineDrug CombinationsFemaleGemcitabineHumansJapanLymphatic MetastasisLymph NodesMaleMiddle AgedNeoadjuvant TherapyOxonic AcidDeoxycytidineDrug CombinationsGemcitabineOxonic AcidS 1 (combination)Tegafur

Identifiers

PMID40526592
PMCPMC12173190

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Registered trials

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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.