Evidence map›Paper›PMID 28222158›Full record

SynthesisPloS one2017

The effect of anti-angiogenic agents on overall survival in metastatic oesophago-gastric cancer: A systematic review and meta-analysis.

David L Chan, Katrin M Sjoquist, David Goldstein, Timothy J Price, Andrew J Martin, Yung-Jue Bang, Yoon-Koo Kang, Nick Pavlakis

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

10 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Peritoneal metastasis in gastric cancer: results from the German database.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2020
    Article
  8. Mast Cells, Angiogenesis and Lymphangiogenesis in Human Gastric Cancer.International journal of molecular sciences · 2019
    Review
  9. Review
  10. New drug developments in metastatic gastric cancer.Therapeutic advances in gastroenterology · 2018
    Review
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

8 authors at 6 institutions in 2 countries.

David L ChanDepartment of Medical Oncology, Royal North Shore Hospital, Sydney, New South Wales, Australia.ORCID http://orcid.org/0000-0002-7773-3144
Katrin M SjoquistNational Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney, New South Wales, Australia.
David GoldsteinDepartment of Medical Oncology, Prince of Wales Hospital, Sydney, New South Wales, Australia.
Timothy J PriceDepartment of Medical Oncology, The Queen Elizabeth Hospital and University of Adelaide, Australia.
Andrew J MartinNational Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney, New South Wales, Australia.
Yung-Jue BangDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
Yoon-Koo KangDepartment of Oncology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, South Korea.
Nick PavlakisDepartment of Medical Oncology, Royal North Shore Hospital, Sydney, New South Wales, Australia.
Royal North Shore Hospital · AUThe University of Sydney · AUPrince of Wales Hospital · AUQueen Elizabeth Hospital · AUSeoul National University · KRUlsan College · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies of anti-angiogenic agents (AAs), combined with chemotherapy (chemo) or as monotherapy in metastatic oesophago-gastric cancer (mOGC), have reported mixed outcomes. We undertook systematic review and meta-analysis to determine their overall benefits and harms.

methodsRandomized controlled trials in mOGC were sought investigating the addition of AAs to standard therapy (best supportive care or chemo). The primary endpoint was overall survival (OS) with secondary endpoints progression-free survival (PFS), overall response rate (ORR) and toxicity. Estimates of treatment effect from individual trials were combined using standard techniques. Subgroup analyses were performed by line of therapy, region, age, performance status, histological type, number of metastatic sites, primary site, mechanism of action and HER2 status.

resultsFifteen trials evaluating 3502 patients were included in quantitative analysis. The addition of AAs was associated with improved OS: HR 0·81 (95% CI 0·75-0·88, p<0·00001) and improved PFS: HR 0·68 (95% CI 0·63-0·74, p<0·00001). Subgroup analyses favoured greater benefit for OS in 2nd/3rd line settings (HR 0·74) compared to 1st-line settings (HR 0·91) (X2 = 6·00, p = 0·01). OS benefit was seen across all regions-Asia (HR 0·83) and rest of world (HR 0·75)-without significant subgroup interaction. Results from 8 trials evaluating 2602 patients were pooled for toxicity > = Grade 3: with OR 1·39 (95% CI 1·17-1·65).

conclusionsThe addition of AAs to standard therapy in mOGC improves OS. Improved efficacy was only observed in 2nd- or 3rd-line setting and not in 1st-line setting. Consistent OS benefit was present across all geographical regions. This benefit is at the expense of increased overall toxicity.

Indexed as

Angiogenesis InhibitorsAntineoplastic AgentsCarcinomaDisease-Free SurvivalEsophageal NeoplasmsGenes, erbB-2HumansPublication BiasQuality of LifeRandomized Controlled Trials as TopicStomach NeoplasmsSurvival AnalysisTreatment OutcomeAngiogenesis InhibitorsAntineoplastic Agents

Identifiers

PMID28222158
PMCPMC5319652
OpenAlexW2591309948

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.