Evidence map›Paper›PMID 28077085›Full record

SynthesisBMC nephrology2017

Erythropoiesis stimulating agents and reno-protection: a meta-analysis.

Steve Elliott, Dianne Tomita, Zoltan Endre

Open access · goldAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in BMC nephrology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
3.9field-weighted citation impact, top 6% 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, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Erythropoiesis-stimulating agents for preventing acute kidney injury.The Cochrane database of systematic reviews · 2024
    Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Updates on Novel Erythropoiesis-Stimulating Agents: Clinical and Molecular Approach.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2020
    Review
  16. Review
  17. Article
  18. Erythropoietin, a multifaceted protein with innate and adaptive immune modulatory activity.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2019
    Review
  19. Article
  20. Risk Factors for Recurrent Acute Kidney Injury in a Large Population-Based Cohort.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2019
    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 2 countries.

Steve ElliottAmgen Inc, One Amgen Center, Newbury Park, Thousand Oaks, CA, 91320, USA. elliottsge@gmail.com.ORCID http://orcid.org/0000-0002-1388-0823
Dianne TomitaAmgen Inc, One Amgen Center, Newbury Park, Thousand Oaks, CA, 91320, USA.
Zoltan EndreDepartment of Nephrology, Prince of Wales Hospital and Clinical School, University of New South Wales, Sydney, NSW, 2031, Australia.
Amgen (United States) · USUNSW Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundErythropoiesis stimulating agents (ESAs) were proposed to enhance survival of renal tissues through direct effects via activation of EPO receptors on renal cells resulting in reduced cell apoptosis, or indirect effects via increased oxygen delivery due to increased numbers of Hb containing red blood cells. Thus through several mechanisms there may be benefit of ESA administration on kidney disease progression and kidney function in renal patients. However conflicting ESA reno-protection outcomes have been reported in both pre-clinical animal studies and human clinical trials. To better understand the potential beneficial effects of ESAs on renal-patients, meta-analyses of clinical trials is needed.

methodsLiterature searches and manual searches of references lists from published studies were performed. Controlled trials that included ESA treatment on renal patients with relevant renal endpoints were selected.

resultsThirty two ESA controlled trials in 3 categories of intervention were identified. These included 7 trials with patients who had a high likelihood of AKI, 7 trials with kidney transplant patients and 18 anemia correction trials with chronic kidney disease (predialysis) patients. There was a trend toward improvement in renal outcomes in the ESA treated arm of AKI and transplant trials, but none reached statistical significance. In 12 of the anemia correction trials, meta-analyses showed no difference in renal outcomes with the anemia correction but both arms received some ESA treatment making it difficult to assess effects of ESA treatment alone. However, in 6 trials the low Hb arm received no ESAs and meta-analysis also showed no difference in renal outcomes, consistent with no benefit of ESA/ Hb increase.

conclusionsMost ESA trials were small with modest event rates. While trends tended to favor the ESA treatment arm, these meta-analyses showed no reduction of incidence of AKI, no reduction in DGF or improvement in 1-year graft survival after renal transplantation and no significant delay in progression of CKD. These results do not support significant clinical reno-protection by ESAs.

Indexed as

Acute Kidney InjuryAdultAgedAged, 80 and overAnemiaComorbidityFemaleHematinicsHumansMaleMiddle AgedPrevalenceRenal AgentsRisk FactorsTreatment OutcomeHematinicsRenal AgentsAKI (acute kidney injury)AnemiaClinical trialEPOErythropoietinESAMeta-analysisProgression of CKDReno-protectionTissue protectionTransplant

Identifiers

PMID28077085
PMCPMC5225567
OpenAlexW2576202064

What OpenQuestion holds

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LicenceCC BY
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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.