Evidence map›Paper›PMID 18338813›Full record

SynthesisCancer2008

Breast cancer adjuvant chemotherapy dosing in obese patients: dissemination of information from clinical trials to clinical practice.

Christopher G Greenman, Christina H Jagielski, Jennifer J Griggs

Open access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in Cancer, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Body mass index and survival in women with breast cancer-systematic literature review and meta-analysis of 82 follow-up studies.Annals of oncology : official journal of the European Society for Medical Oncology · 2014
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Too Much, Too Little, or Just Right? Obesity and Dosing of Targeted Therapies in Breast Cancer.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2023
    Article
  9. Body mass index and patient-reported function, quality of life and treatment toxicity in women receiving adjuvant chemotherapy for breast cancer.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2023
    Article
  10. Observational
  11. Review
  12. Article
  13. Article
  14. Article
  15. Clinical management of obese patients with cancer.Nature reviews. Clinical oncology · 2013
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

3 authors at 2 institutions in 1 country.

Christopher G GreenmanUniversity of Rochester, Rochester, New York, USA.
Christina H Jagielski
Jennifer J Griggs
University of Michigan–Ann Arbor · USUniversity of Rochester · US

Funding

Cost-Effectiveness--Treatments--Ductal Carcinoma In SituR01CA092444 · NCI · UNIVERSITY OF ROCHESTER · PI GRIGGS, JENNIFER J · 2002 to 2004
$1.4M
NCI NIH HHS R01 CA092444NCI NIH HHS R01 CA922444-01A1
6 · The paper itself

Abstract

backgroundSubstantial variation in adjuvant breast cancer chemotherapy dosing in obese women suggests that there is uncertainty about optimal practices. The purpose of this study was to investigate variations in dose determinations in clinical trial protocols and publications over the last 3 decades as potential sources of this uncertainty.

methodsThe National Cancer Institute database was used to identify protocols of breast cancer adjuvant chemotherapy conducted by cooperative groups between 1970-2000, and these protocols were then obtained directly from the cooperative groups. Dose determinations were categorized in each protocol and in published reports from each clinical trial. Fisher exact tests were used to compare the proportions of protocols that used full weight-based doses over time.

resultsProtocol-specified chemotherapy dosing was obtained for all of 44 eligible trials. A significant increase was identified in the use of full weight-based doses in the later time period compared with the earlier (P = .004; 2-sided Fisher exact test). A notable exception was 1 cooperative group that continues to require dose limitations for doxorubicin and cyclophosphamide in patients with a body surface area of more than 2.0 m(2). Regardless of publication date, published reports of clinical trials rarely provide information on use of full or limited weight-based doses.

conclusionsVariations in dose determinations among clinical trial protocols and lack of information on use of full weight-based doses in most publications are 2 likely sources of variation in chemotherapy dosing in obese women. Developing consensus and disseminating information on optimal chemotherapy dosing will likely reduce such variation and may improve survival among obese patients with breast cancer.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsChemotherapy, AdjuvantClinical Trials as TopicCyclophosphamideDose-Response Relationship, DrugDoxorubicinFemaleHumansObesityPractice Guidelines as TopicPractice Patterns, Physicians'CyclophosphamideDoxorubicin

Identifiers

PMID18338813
PMCPMC4260327
OpenAlexW1994224918

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.