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Oxygen Toxicity in the Resuscitation in Extremely Premature Infants (OXTOX)

F

Fundacion Para La Investigacion Hospital La Fe

Status and phase

Completed
Phase 3

Conditions

Birth Asphyxia
Premature Birth

Treatments

Procedure: Resuscitation

Study type

Interventional

Funder types

Other

Identifiers

NCT00494702
PIO51O5
FISPI05105

Details and patient eligibility

About

The investigators hypothesize that using low oxygen concentrations during resuscitation of extremely premature infants will avoid oxidative stress derived damage and improve outcome.

Full description

This is a prospective randomized trial enrolling premature infants of less than 28 weeks gestation. Patients are randomly assigned to become resuscitation with an initial oxygen inspiratory fraction (FiO2) of 30% or 90%. Main objective is to reach a target saturation of 85% at 15 min of life.

Immediately after birth pre-and-postductal pulse oximeters are set and oxygen saturation (SpO2) continuously monitored and registered as long as the patient requires oxygen supplementation. FiO2 is stepwise adjusted (increased or decreased 10%) every 90 sec according to heart rate, SpO2 and responsiveness.

Blood samples are drawn from umbilical cord and at day 1, 2 and 7 from peripheral vein to determine oxidative stress markers (GSH, GSSG), angiogenic factors (VEGF, VEGF receptors, Angiopoietin), pro-inflammatory markers (IL8, TNF alfa) and pro-apoptotic markers (Fas Ligand; Cytochrome C).

Urine is collected every day during the first week of life to determine oxidative stress markers (8-oxo-dG; O-tyrosine; F2 isoprostanes; Isofurans).

Babies are followed in the NICU and clinical condition recorded. Serial examinations for ROP and Auditory evoked potentials will be performed. Neurodevelopmental outcome is evaluated at 2 years of postnatal life. Main outcome: Achievement of a target saturation of 85% at 15 min of life. Secondary outcomes: acute complications during delivery; chronic complications (BPD, ROP, IPVH); mortality in the neonatal period.

Enrollment

88 patients

Sex

All

Ages

1 to 3 minutes old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Prematurity of less than 28 weeks gestation

Exclusion criteria

  • Severe malformations
  • Chromosomopathies
  • Informed consent not signed

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

88 participants in 2 patient groups

LOX
Experimental group
Description:
Low saturation group of premature infants that will be kept within preset limits of 85-89%
Treatment:
Procedure: Resuscitation
Procedure: Resuscitation
HOX
Active Comparator group
Description:
HOX group of premature infants will be kept within preset saturation limits of 90-93%
Treatment:
Procedure: Resuscitation
Procedure: Resuscitation

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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