Evidence map›Paper›PMID 20185602›Full record

Trial reportClinical journal of the American Society of Nephrology : CJASN2010

A randomized controlled study comparing once-weekly to every-2-week and every-4-week dosing of epoetin alfa in CKD patients with anemia.

Pablo E Pergola, Gary Gartenberg, Min Fu, Steven Sun, Marsha Wolfson, Peter Bowers

Open access · bronzeAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Clinical journal of the American Society of Nephrology : CJASN, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 3 pooled it
0.8field-weighted citation impact, top 27% 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

7 citing papers in PubMed, 3 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. 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
  4. Trial
  5. Anemia in chronic kidney disease.Pediatric nephrology (Berlin, Germany) · 2018
    Review
  6. Article
  7. Review
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

6 authors at 1 institution in 1 country.

Pablo E PergolaRenal Associates PA, 215 East Quincy Street, Suite 610, San Antonio, TX 78215, USA. ppergola@raparesearch.com
Gary Gartenberg
Min Fu
Steven Sun
Marsha Wolfson
Peter Bowers
Renal Associates P. A. · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesExtended-interval dosing of epoetin alfa (EPO) is commonly used to treat anemia in patients with chronic kidney disease (CKD). This study aimed to demonstrate that EPO dosed every 2 weeks (Q2W) and every 4 weeks (Q4W) was noninferior to once-weekly (QW) dosing. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: 430 anemic subjects with stage 3 to 4 CKD receiving a stable QW dose of EPO were randomized 1:1:2 to QW, Q2W, and Q4W dosing for 36 weeks. Hemoglobin (Hb) was measured weekly, and the dose of EPO was adjusted to maintain an Hb level of 11.0 to 11.9 g/dl. The primary endpoint was change in Hb from baseline to the average of the last 12 weeks of treatment.

resultsBoth the Q2W and Q4W dosing groups were noninferior to the QW group. The estimated difference of the mean change in Hb between Q2W and QW was -0.03 g/dl; and between Q4W and QW was -0.09 g/dl. From weeks 13 to 37, the mean percentage of weeks per subject with Hb 10.0 to 11.9 g/dl, inclusive, was 81% for QW, 81% for Q2W, and 75% for Q4W. Death occurred, respectively, in 4%, 3%, and 4%; thromboembolic vascular events occurred in 3%, 5%, and 3%; and serious adverse events occurred in 22%, 26%, and 26% of subjects.

conclusionsQ2W and Q4W EPO dosing maintained Hb levels in subjects with stage 3 to 4 CKD. Deaths, thromboembolic vascular events, and serious adverse events were comparable across the dosing groups.

Indexed as

AdultAgedAged, 80 and overAnemiaDrug Administration ScheduleDrug MonitoringEpoetin AlfaErythrocyte TransfusionErythropoietinFemaleHematinicsHemoglobinsHumansIron CompoundsKidney DiseasesMaleEpoetin AlfaErythropoietinHematinicsHemoglobinsIron CompoundsRecombinant Proteins

Identifiers

PMID20185602
PMCPMC2849701
OpenAlexW2120612796

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.