Evidence map›Paper›PMID 20309588›Full record

SynthesisInternational journal of colorectal disease2010

Cetuximab-based therapy for metastatic colorectal cancer: a meta-analysis of the effect of K-ras mutations.

Ezzeldin M Ibrahim, Jamal M Zekri, Bakr M Bin Sadiq

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in International journal of colorectal disease, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 6 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

11 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Guideline
  2. Molecular Biomarkers for the Evaluation of Colorectal Cancer.American journal of clinical pathology · 2017
    Guideline
  3. Efficacy and toxicity of adding cetuximab to chemotherapy in the treatment of metastatic colorectal cancer: a meta-analysis from 12 randomized controlled trials.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Article
  8. Article
  9. Article
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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

3 authors.

Ezzeldin M IbrahimDepartment of Oncology, King Faisal Specialist Hospital and Research Center, PO Box 40047, Jeddah 21499, Kingdom of Saudi Arabia. ezzibrahim@kfshrc.edu.sa
Jamal M Zekri
Bakr M Bin Sadiq

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCetuximab has a favorable effect on patients with metastatic colorectal cancer harboring wild K-ras gene. This meta-analysis was planned to quantify the benefit.

methodsA meta-analysis of clinical studies that have used cetuximab-based therapy (CBT) for patients with known K-ras status.

resultsThere were four randomized studies (RS) that compared CBT versus non-cetuximab control (NCC) in 2,292 patients, and six non-randomized studies (NRS) included patients received cetuximab after failure of prior chemotherapy (411 patients). Patients in RS with wild K-ras tumor gained more benefit from CBT vs. NCC. For response rate (RR), the odds ratio was 2.10 (p = 0.0002), while the hazard ratio (HR) for progression-free survival (PFS) was 0.64 (p = 0.04). On the other hand, CBT was associated with an adverse effect on RR and no effect on PFS in mutated K-ras. In all patients who received CBT in RS and NRS, those with wild vs. mutated K-ras demonstrated higher RR (odds ratio 3.72; p < 0.0001). Compared with NCC in three RS, CBT showed significant overall survival (OS) advantage in patients with wild K-ras (HR = 0.68; p = 0.01).

conclusionsThe significant clinical benefit of CBT concerning RR, PFS, and OS was restricted to patients with wild-type K-ras. There is a need to better define potential responders to CBT.

Indexed as

Antibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic AgentsCetuximabColorectal NeoplasmsDisease-Free SurvivalHumansMutationNeoplasm MetastasisOdds RatioProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsTreatment OutcomeAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic AgentsCetuximabKRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras Proteins

Identifiers

What OpenQuestion holds

Textmetadata
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.