Evidence map›Paper›PMID 40557341›Full record

ArticleAnnals of surgery open : perspectives of surgical history, education, and clinical approaches2025

A Randomized Open-Label, Noninferiority, Phase 3, Multicenter, Controlled Trial to Compare Laparoscopic Surgery With Open Surgery for Symptomatic, Noncurable Stage IV Colorectal Cancer (JCOG1107).

Tomonori Akagi, Masafumi Inomata, Ryo Kanzaka, Hiroshi Katayama, Haruhiko Fukuda, Akio Shiomi, Masaaki Ito, Jun Watanabe, Kohei Murata, Yasumitsu Hirano and 5 more

Abstract read
In one paragraph

Article in Annals of surgery open : perspectives of surgical history, education, and clinical approaches, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

15 authors.

Tomonori AkagiDepartment of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Oita, Japan.
Masafumi InomataDepartment of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Oita, Japan.
Ryo KanzakaJCOG Data Center/Operations Office, National Cancer Center Hospital, Tokyo, Japan.
Hiroshi KatayamaJCOG Data Center/Operations Office, National Cancer Center Hospital, Tokyo, Japan.
Haruhiko FukudaJCOG Data Center/Operations Office, National Cancer Center Hospital, Tokyo, Japan.
Akio ShiomiDivision of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, Shizuoka, Japan.
Masaaki ItoDepartment of Colorectal Surgery, National Cancer Center Hospital East, Chiba, Japan.
Jun WatanabeDepartment of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Kanagawa, Japan.
Kohei MurataDepartment of Surgery, Kansai Rosai Hospital, Hyogo, Japan.
Yasumitsu HiranoDepartment of Gastroenterological Surgery, Saitama Medical University International Medical Center, Saitama, Japan.
Manabu ShimomuraDepartment of Gastrointestinal Surgery, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan.
Shunsuke TsukamotoDepartment of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan.
Tetsuya HamaguchiDepartment of Gastroenterological Oncology, Saitama Medical University International Medical Center, Saitama, Japan.
Seigo KitanoOita University, Oita, Japan.
Yukihide KanemitsuDepartment of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: To confirm noninferiority of laparoscopic (LAP) to open surgery (OP) for progression-free survival (PFS) of patients with non-curable stage IV colorectal cancer (CRC). Background: Benefits of LAP versus OP are suggested, but long-term survival following LAP for symptomatic, noncurable CRC remains unclear. Methods: In this open-label, multicenter, randomized controlled trial, only accredited surgeons from 42 Japanese institutions participated. Eligibility criteria included pathologically proven adenocarcinoma or adenosquamous carcinoma; primary tumor anywhere in the colon causing bowel stenosis and/or bleeding; and at least 1 to 3 noncurable factors. Patients received mFOLFOX6+bevacizumab or CapeOX+bevacizumab postoperatively and were randomly assigned 1:1 to the OP or LAP group. The primary endpoint was PFS, with noninferiority margin for the hazard ratio (HR) set at 1.38. Results: Between January 2013 and January 2021, 195 patients were randomized (OP, n = 95, LAP, n = 100). Ninety-two patients received OP and 98 LAP, with 82 OP and 86 LAP patients receiving postoperative chemotherapy. Median PFS was 9.7 months (95% CI = 8.7-11.3) for OP and 10.4 months (9.1-12.4) for LAP. Noninferiority of LAP was confirmed [HR = 1.02; 91.4% CI = 0.79-1.32 (<1.38), Conclusions: LAP appears to be an acceptable standard treatment for symptomatic, noncurable stage IV CRC. Trial registration: UMIN-CTR, number UMIN000009715.

Indexed as

colorectal cancerlaparoscopic surgerynon-curablestage IVsymptomatic

Identifiers

PMID40557341
PMCPMC12185070

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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.