Evidence map›Paper›PMID 19808215›Full record

Trial reportClinical journal of the American Society of Nephrology : CJASN2009

A randomized controlled study of weekly and biweekly dosing of epoetin alfa in CKD Patients with anemia.

Pablo E Pergola, Gary Gartenberg, Min Fu, Marsha Wolfson, Sudhakar Rao, Peter Bowers

Open access · greenAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Clinical journal of the American Society of Nephrology : CJASN, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 4 pooled it
0.9field-weighted citation impact, top 24% 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

11 citing papers in PubMed, 4 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Dose of erythropoiesis-stimulating agents and adverse outcomes in CKD: a metaregression analysis.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2013
    Pooled it
  5. Trial
  6. Article
  7. Article
  8. Article
  9. Switch from epoetin to darbepoetin alfa in hemodialysis: dose equivalence and hemoglobin stability.International journal of nephrology and renovascular disease · 2014
    Article
  10. Review
  11. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Pablo E PergolaRenal Associates, PA, 215 East Quincy Street, Suite 610, San Antonio, TX 78215. ppergola@raparesearch.com.
Gary Gartenberg
Min Fu
Marsha Wolfson
Sudhakar Rao
Peter Bowers
Johnson & Johnson (United States) · USOrtho Clinical Diagnostics (United States) · USRenal Associates P. A. · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesIn clinical practice, physicians often use once-weekly (QW) and biweekly (Q2W) dosing of epoetin alfa to treat anemia in patients with chronic kidney disease (CKD). Although the literature supports this practice, previous studies were limited by short treatment duration, lack of randomization, or absence of the approved three times per week (TIW) dosing arm. This randomized trial evaluated extended dosing regimens of epoetin alfa, comparing QW and Q2W to TIW dosing in anemic CKD subjects. The primary objective was to show that treatment with epoetin alfa at QW and Q2W intervals was not inferior to TIW dosing. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: 375 subjects with stage 3 to 4 CKD were randomized equally to the three groups and treated for 44 wk; to explore the impact of changing from TIW to QW administration on hemoglobin (Hb) control and adverse events, subjects on TIW switched to QW after 22 wk. The Hb was measured weekly, and the dose of epoetin alfa was adjusted to achieve and maintain an Hb level of 11.0 to 11.9 g/dl.

resultsBoth the QW and Q2W regimens met the primary efficacy endpoint. More subjects in the TIW group than in the QW and Q2W groups exceeded the Hb ceiling. Adverse events were similar across treatment groups and consistent with the morbidities of CKD patients.

conclusionsAdministration of epoetin alfa at QW and Q2W intervals are potential alternatives to TIW dosing for the treatment of anemia in stage 3 to 4 CKD subjects.

Indexed as

AdultAgedAged, 80 and overAnemiaDose-Response Relationship, DrugEpoetin AlfaErythrocyte TransfusionErythropoietinFemaleHematinicsHemoglobinsHumansHypertension, RenalIncidenceIronKidney Failure, ChronicEpoetin AlfaErythropoietinHematinicsHemoglobinsIronRecombinant Proteins

Identifiers

PMID19808215
PMCPMC2774960
OpenAlexW2148520689

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.