Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Randomized Study of Weekly Erythropoietin Dosing in Preterm Infants

This study has been completed.
National Center for Research Resources (NCRR)
Information provided by (Responsible Party):
University of New Mexico Identifier:
First received: November 4, 2010
Last updated: June 19, 2013
Last verified: June 2012
Preterm infants are a risk for multiple transfusions, and the administration of human recombinant erythropoietin (Epo) has been shown to decrease transfusion requirements. Dosing usually occurs three times a week, but extended dosing schedules have been successful in adults. The investigators assessed weekly Epo dosing in preterm infants compared to standard three times weekly dosing.

Condition Intervention Phase
Preterm Infants
Drug: three times weekly Epo
Drug: weekly Epo
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Masked Study of Weekly Erythropoietin Dosing in Preterm Infants

Resource links provided by NLM:

Further study details as provided by University of New Mexico:

Primary Outcome Measures:
  • Baseline Retic Count [ Time Frame: baseline ]
    retic count measured at study entry

  • Reticulocyte Count [ Time Frame: 4 weeks ]
    reticulocyte count at 4 weeks (end of study)

Enrollment: 20
Study Start Date: April 2006
Study Completion Date: December 2009
Primary Completion Date: March 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: three times weekly Epo
Epo 400 units/kg three times weekly given subcutaneously for 4 weeks
Drug: three times weekly Epo
Epo 400 units/kg administered subcutaneously three times per week for a total of 4 weeks
Other Names:
  • Epoetin alfa
  • Procrit
Active Comparator: weekly Epo
1,200 units/kg given once a week subcutaneously for 4 weeks
Drug: weekly Epo
Epo 1,200 units/kg administered subcutaneously once a week for a total of 4 weeks
Other Names:
  • Epoetin alfa
  • Procrit

Detailed Description:

Erythropoietin (Epo) increases and maintains hematocrit using once weekly dosing in adults with anemia due to end stage renal disease. Epo is used in preterm infants to treat the anemia of prematurity, but has not been studied using once weekly dosing. We compared reticulocyte responses of once weekly Epo dosing with thrice weekly dosing in preterm infants.

Infants ≤1,500 grams and ≥7 days of age were randomized to once weekly Epo, 1,200 units/kg/dose, or thrice weekly Epo, 400 units/kg/dose, subcutaneously for 4 weeks, along with iron and vitamin supplementation. Complete blood counts, absolute reticulocyte counts (ARC), transfusions, phlebotomy losses, and adverse events were recorded.


Ages Eligible for Study:   up to 100 Days   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • < or = 1,500 grams
  • < or = 32 weeks gestation
  • > or = 7 days of age
  • informed consent obtained

Exclusion Criteria:

  • hemolytic disease
  • hypertension
  • seizures
  • thromboses
  • major malformation
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01235923

United States, New Mexico
Albuquerque, New Mexico, United States, 87131
Sponsors and Collaborators
University of New Mexico
National Center for Research Resources (NCRR)
Principal Investigator: Robin K Ohls, MD University of New Mexico
  More Information

Responsible Party: University of New Mexico Identifier: NCT01235923     History of Changes
Other Study ID Numbers: 05-380
M01RR000997 ( US NIH Grant/Contract Award Number )
Study First Received: November 4, 2010
Results First Received: November 29, 2012
Last Updated: June 19, 2013

Keywords provided by University of New Mexico:

Additional relevant MeSH terms:
Premature Birth
Obstetric Labor, Premature
Obstetric Labor Complications
Pregnancy Complications
Epoetin Alfa
Hematinics processed this record on May 24, 2017