Evidence map›Paper›PMID 22334451›Full record

ArticleThe oncologist2012

Outpatient use of low molecular weight heparin monotherapy for first-line treatment of venous thromboembolism in advanced cancer.

Thomas Delate, Daniel M Witt, Debra Ritzwoller, Jane C Weeks, Lawrence Kushi, Mark C Hornbrook, Erin J Aiello Bowles, Deborah Schrag

Open access · bronzeAbstract read
In one paragraph

Article in The oncologist, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
3.3field-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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Observational
  7. Article
  8. Direct oral anticoagulants for the treatment and prevention of venous thromboembolism in patients with cancer: current evidence.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2021
    Review
  9. Assessment of adherence to cancer-associated venous thromboembolism guideline and pharmacist's impact on anticoagulant therapy.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2021
    Article
  10. Prevention and Treatment of Cancer-Associated Venous Thromboembolism: a Review.Current treatment options in cardiovascular medicine · 2019
    Review
  11. Duration of anticoagulant therapy and VTE recurrence in patients with cancer.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2019
    Article
  12. Treatment of cancer-associated venous thromboembolism in the age of direct oral anticoagulants.Annals of oncology : official journal of the European Society for Medical Oncology · 2019
    Review
  13. Review
  14. Observational
  15. Article
  16. Review
  17. Adherence to treatment guidelines for cancer-associated thrombosis: a French hospital-based cohort study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2016
    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

8 authors at 4 institutions in 1 country.

Thomas DelateClinical Pharmacy Research Scientist, Pharmacy Department, Kaiser Permanente Colorado, 16601 E. Centretech Parkway, Aurora, Colorado 80011, USA. tom.delate@kp.org
Daniel M Witt
Debra Ritzwoller
Jane C Weeks
Lawrence Kushi
Mark C Hornbrook
Erin J Aiello Bowles
Deborah Schrag
Kaiser Permanente · USDana-Farber Cancer Institute · USKaiser Permanente Center for Health Research · USKaiser Permanente Washington Health Research Institute · US

Funding

The HMO Cancer Research Network (CRN)U19CA079689 · NCI · KAISER FOUNDATION HEALTH PLAN OF WASHINGTON · PI MAZOR, KATHLEEN MICHELE · 1999 to 2011
$62.6M
Building CER Capacity: Aligning CRN, CMS, and State Resources to Map Cancer CareRC2CA148185 · NCI · DANA-FARBER CANCER INST · PI RITZWOLLER, DEBRA P, WEEKS, JANE C. · 2009 to 2009
$2.0M
Comparative Effectiveness of Cancer TherapiesK05CA166208 · NCI · DANA-FARBER CANCER INST · PI WEEKS, JANE C. · 2012 to 2013
$346k
NCI NIH HHS 5U19CA079689NCI NIH HHS K05 CA166208NCI NIH HHS RC2 CA148185NCI NIH HHS U19 CA079689NCI NIH HHS U19CA79689
6 · The paper itself

Abstract

backgroundEvidence-based treatment guidelines recommend low molecular weight heparin (LMWH) monotherapy for cancer-associated venous thromboembolism (VTE). This analysis assessed the first-line treatment strategies for VTE in patients with advanced solid tumors.

methodsUsing administrative data from advanced lung, prostate, colon, or breast cancer patients diagnosed between January 2000 and December 2007 at four HMOs with integrated delivery systems, patients with an inpatient or outpatient VTE diagnosed within 2 years after cancer diagnosis and an outpatient purchase of warfarin, LMWH, and/or fondaparinux anticoagulant within 7 days of the VTE diagnosis were identified. First-line outpatient VTE pharmacological treatment and factors independently associated with receipt/non-receipt of LMWH monotherapy were assessed.

resultsOverall, 25% of the 1,089 eligible patients received LMWH monotherapy as primary VTE treatment. The percentage increased steadily over time from 18% among patients diagnosed in 2000 to 31% among those diagnosed in 2007. Factors associated with LMWH monotherapy included VTE diagnosis year, chemotherapy within 60 days prior to VTE diagnosis, history of VTE prior to cancer diagnosis, and invasive surgery in the 90 days following VTE diagnosis. Colorectal and prostate cancer patients versus lung cancer patients and stage III versus stage IV patients were less likely to be treated with LMWH monotherapy.

conclusionsAdoption of LMWH monotherapy as initial treatment for cancer-associated VTE was low but increased steadily over the study period. Future studies should explore reasons underlying the underutilization of this preferred evidence-based treatment as well as the comparative effectiveness of LMWH versus warfarin-based anticoagulation in real-world cancer patients with VTE.

Indexed as

NeoplasmsOutpatientsAgedFemaleHeparin, Low-Molecular-WeightHumansMaleMiddle AgedNeoplasm StagingRisk FactorsTreatment OutcomeVenous ThromboembolismWarfarinHeparin, Low-Molecular-WeightWarfarin

Identifiers

PMID22334451
PMCPMC3316928
OpenAlexW2124028214

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.