Transfusions and Nitric Oxide Level in Preterm Infants

NCT ID: NCT00787124

Last Updated: 2018-09-28

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

8 participants

Study Classification

OBSERVATIONAL

Study Start Date

2008-09-30

Study Completion Date

2009-09-30

Brief Summary

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The purpose of this study is to better understand S-nitrosohemeglobin (SNO-Hb) in transfused blood of extremely preterm infants. The long term goal of the project is to identify variation in the SNO-Hb between packed red blood cell units, and between and among individual preterm infants pre and post-transfusion. Duke investigators are developing methods to replenish SNO-Hb, which, if successful, would improve RBC deformation in addition to providing a vasodilatory stimulation to hypoxic tissue, and lead to a randomized clinical trial testing treated vs. untreated RBC transfusions in extremely premature infants.

AIM 1. Measure the Total Hemoglobin (Hb)-bound nitric oxide (NO), Hb \[Fe\] NO, SNO-Hb (a calculated value = (total Hb-NO - Hb \[Fe\] NO) in blood to be transfused in extremely preterm babies, and in samples pre and post- transfusion from the babies.

Hypothesis 1: Measures of NO and SNO-Hb will be low in blood used for transfusion in preterm infants and will be decreased in the post-transfusion samples from the infants compared with the pre-transfusion samples.

AIM 2. Collect clinical data about study participants, including oxygen saturation and measures of perfusion pre and post-transfusion.

Hypothesis 2: Measures of perfusion will be reduced by 20% post-transfusion in extremely preterm infants.

Detailed Description

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Conditions

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Prematurity Anemia Necrotizing Enterocolitis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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1

\< 28 weeks gestation, \< 30 days of age, \< 3 previous transfusions

No interventions assigned to this group

2

\< 28 weeks gestation, \>=30 days of age, \>= 3 previous transfusions

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Infant \< 28 weeks gestation at birth
* Undergoing PRBC transfusion with a volume ≥ 10 cc/kg
* Availability and willingness of the parent/legally authorized representative to provide written informed consent.

Exclusion Criteria

* Any concomitant condition, which in the opinion of the investigator would preclude a patient's participation in the study
* Previous participation in the study.
Maximum Eligible Age

365 Days

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Children's Miracle Network

OTHER

Sponsor Role collaborator

Duke University

OTHER

Sponsor Role lead

Responsible Party

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Phillip Brian Smith

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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P Brian Smith, MD MHS

Role: PRINCIPAL_INVESTIGATOR

Duke University

Locations

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Duke University Medical Center

Durham, North Carolina, United States

Site Status

Countries

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United States

Other Identifiers

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Pro00007939

Identifier Type: -

Identifier Source: org_study_id

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