Evidence map›Paper›PMID 16299015›Full record

SynthesisBMJ (Clinical research ed.)2005

Are experimental treatments for cancer in children superior to established treatments? Observational study of randomised controlled trials by the Children's Oncology Group.

Ambuj Kumar, Heloisa Soares, Robert Wells, Mike Clarke, Iztok Hozo, Archie Bleyer, Gregory Reaman, Iain Chalmers, Benjamin Djulbegovic, Children's Oncology Group

Open access · bronzeAbstract readComparative StudyMeta-Analysis
In one paragraph

Synthesis in BMJ (Clinical research ed.), 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 3 pooled it
5.7field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 3 syntheses or guidelines pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Implications of the Cass Review for health policy governing gender medicine for Australian minors.Australasian psychiatry : bulletin of Royal Australian and New Zealand College of Psychiatrists · 2025
    Review
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  8. Observational
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  14. New treatments compared to established treatments in randomized trials.The Cochrane database of systematic reviews · 2012
    Article
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  16. Review
  17. Article
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  19. Article
  20. Speeding up the evaluation of new agents in cancer.Journal of the National Cancer Institute · 2008
    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

10 authors at 5 institutions in 2 countries.

Ambuj KumarDepartment of Interdisciplinary Oncology, H Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL 33612, USA.
Heloisa Soares
Robert Wells
Mike Clarke
Iztok Hozo
Archie Bleyer
Gregory Reaman
Iain Chalmers
Benjamin Djulbegovic
Children's Oncology Group
University of South Florida · USThe University of Texas MD Anderson Cancer Center · USCochrane · GBNorthwest University · USWellcome Library · GB

Funding

Evaluation of the Quality of Clinical TrialsR01NS052956 · NINDS · H. LEE MOFFITT CANCER CTR &RES INST · PI DJULBEGOVIC, BENJAMIN · 2005 to 2006
$445k
Equipoise and the research integrity of clinical trialsR01NS044417 · NINDS · UNIVERSITY OF SOUTH FLORIDA · PI DJULBEGOVIC, BENJAMIN · 2002 to 2003
$290k
NINDS NIH HHS 1R01NS044417-01NINDS NIH HHS R01 NS052956
6 · The paper itself

Abstract

objectivesTo assess how often new treatments for childhood cancer assessed in phase III randomised trials are superior or inferior to standard treatments and whether the pattern of successes and failures in new treatments is consistent with uncertainty being the ethical basis for enrolling patients in such trials.

designObservational study.

settingPhase III randomised controlled trials carried out under the aegis of the Children's Oncology Group between 1955 and 1997, regardless of whether they were published.

main outcome measuresOverall survival, event free survival, and treatment related mortality.

results126 trials were included, involving 152 comparisons and 36,567 patients. The odds ratio for overall survival with experimental treatments was 0.96 (99% confidence interval 0.89 to 1.03), indicating that new treatments are as likely to be inferior as they are to be superior to standard treatments. This result was not affected by publication bias, methodological quality, treatment type, disease, or comparator.

conclusionsNew treatments in childhood cancer tested in randomised controlled trials are, on average, as likely to be inferior as they are to be superior to standard treatments, confirming that the uncertainty principle has been operating.

Indexed as

ChildClinical Trials, Phase III as TopicHumansMedical OncologyNeoplasmsOdds RatioRandomized Controlled Trials as TopicSurvival AnalysisTreatment Outcome

Identifiers

PMID16299015
PMCPMC1298846
OpenAlexW2048062070

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.