Evidence map›Paper›PMID 34580795›Full record

Observational studyGastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association2022

Treatment response after palliative radiotherapy for bleeding gastric cancer: a multicenter prospective observational study (JROSG 17-3).

Tetsuo Saito, Takashi Kosugi, Naoki Nakamura, Hitoshi Wada, Ayako Tonari, Hirofumi Ogawa, Norio Mitsuhashi, Kazunari Yamada, Takeo Takahashi, Kei Ito and 10 more

Abstract readMulticenter StudyObservational Study
PubMed Publisher
In one paragraph

Observational study in Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Article
  3. Review
  4. Radiotherapy as an antihemorrhagic approach in gastric cancer: the RANTIGA study.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026
    Article
  5. Article
  6. Early angiographic changes after hemostatic radiotherapy for gastric cancer bleeding, mentioning the mechanism and potential immediate effects of the treatment.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025
    Article
  7. Article
  8. Hemostatic palliative radiotherapy for gastric cancer: A literature review.Technical innovations & patient support in radiation oncology · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. 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

20 authors.

Tetsuo SaitoDepartment of Radiation Oncology, Arao Municipal Hospital, 2600, Arao, Arao-shi, Kumamoto, 864-0041, Japan. tetsuosaito1977@gmail.com.ORCID http://orcid.org/0000-0003-1955-6773
Takashi KosugiDepartment of Radiation Oncology, Fujieda Municipal General Hospital, Shizuoka, Japan.
Naoki NakamuraDepartment of Radiology, St. Marianna University School of Medicine, Kanagawa, Japan.
Hitoshi WadaDepartment of Radiation Oncology, Southern TOHOKU Proton Therapy Center, Fukushima, Japan.
Ayako TonariDepartment of Radiation Oncology, Kyorin University Hospital, Tokyo, Japan.
Hirofumi OgawaDivision of Radiation Therapy, Shizuoka Cancer Center, Shizuoka, Japan.
Norio MitsuhashiRadiation Therapy Center, Hitachi, Ltd., Hitachinaka General Hospital, Ibaraki, Japan.
Kazunari YamadaDepartment of Radiation Oncology, Seirei Mikatahara General Hospital, Shizuoka, Japan.
Takeo TakahashiDepartment of Radiation Oncology, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
Kei ItoDivision of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan.
Shuhei SekiiDepartment of Radiation Oncology, Kita-Harima Medical Center, Hyogo, Japan.
Norio ArakiDepartment of Radiation Oncology, National Hospital Organization Kyoto Medical Center, Kyoto, Japan.
Miwako NozakiDepartment of Radiation Oncology, Saitama Medical Center, Dokkyo Medical University, Saitama, Japan.
Joichi HeiannaDepartment of Radiology, Nanbu Tokushukai Hospital, Okinawa, Japan.
Kenta MurotaniBiostatistics Center, Kurume University, Fukuoka, Japan.
Yasuhiro HiranoDivision of Radiation Oncology and Particle Therapy, National Cancer Center Hospital East, Chiba, Japan.
Atai SatohDepartment of Surgery, Southern TOHOKU General Hospital, Fukushima, Japan.
Tsuyoshi OnoeDivision of Radiation Therapy, Shizuoka Cancer Center, Shizuoka, Japan.
Takahiro WatakabeDepartment of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.
Naoto ShikamaDivision of Radiation Oncology, Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPalliative radiotherapy seems to be rarely performed for incurable gastric cancer. In this first multicenter study, we examined the effectiveness of palliative radiotherapy and investigated whether biologically effective dose (BED) is associated with survival, response, or re-bleeding.

methodsEligibility criteria included blood transfusion or hemoglobin levels < 8.0 g/dL. The primary endpoint was the intention-to-treat (ITT) bleeding response rate at 4 weeks. Response entailed all of the following criteria: (i) hemoglobin levels ≥ 8.0 g/dL; (ii) 7 consecutive days without blood transfusion anytime between enrollment and blood sampling; and (iii) no salvage treatment (surgery, endoscopic treatment, transcatheter embolization, or re-irradiation) for bleeding gastric cancer. Re-bleeding was defined as the need for blood transfusion or salvage treatment.

resultsWe enrolled 55 patients from 15 institutions. The ITT response rates were 47%, 53%, and 49% at 2, 4, and 8 weeks, respectively. The per-protocol response rates were 56%, 78%, and 90% at 2, 4, and 8 weeks, respectively. Neither response nor BED (α/β = 10) predicted overall survival. Multivariable Fine-Gray model showed that BED was not a significant predictor of response. Univariable Cox model showed that BED was not significantly associated with re-bleeding. Grades 1, 2, 3, and, ≥ 4 radiation-related adverse events were reported in 11, 9, 1, and 0 patients, respectively.

conclusionsThe per-protocol response rate increased to 90% during the 8-week follow-up. The frequent occurrence of death starting shortly after enrollment lowered the ITT response rate. BED was not associated with survival, bleeding response, or re-bleeding.

Indexed as

Stomach NeoplasmsBlood TransfusionGastrointestinal HemorrhageHumansPalliative CareRadiotherapy DosageBleeding gastric cancerMulticenter prospective observational studyPalliative radiotherapyRe-bleedingResponse rate

Identifiers

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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.