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Infant, Newborn, DiseasesPhase 3SUPPORTNCT00233324

Surfactant Positive Airway Pressure and Pulse Oximetry Trial

A Phase 3 study testing Surfactant, Continuous Positive Airway Pressure (CPAP) and Supplemental oxygen with target saturation of 85 to 89% in people with Infant, Newborn, Diseases and Other Preterm Infants, run by NICHD Neonatal Research Network at 22 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This study compared the use of continuous positive airway pressure initiated at birth with the early administration of surfactant administered through a tube in the windpipe within 1 hour of birth for premature infants born at 24 to 27 weeks gestation. Read more about this study

Who is it for?
Ages 24 to 27 weeks
What is being tested?
Surfactant, Continuous Positive Airway Pressure (CPAP) and Supplemental oxygen with target saturation of 85 to 89%
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,316 participants
Where
22 sitesUnited States
Study dates
Feb 2005to Aug 2016
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 24 to 27 weeks
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Infants with a minimal gestational age of 24 weeks 0 days to 27 completed weeks (up to 27 6/7ths) by best obstetrical estimate
  • Infants who will receive full resuscitation as necessary, i.e., no parental request or physician decision to forego resuscitation
  • Infants whose parents/legal guardians have provided consent for enrollment, or
  • Infants without known major congenital malformations

Who cannot join

  • Any infant transported to the center after delivery
  • Infants whose parents/legal guardians refuse consent
  • Infants born during a time when the research apparatus/study personnel are not available
  • Infants < 24 weeks 0 days or > 28 weeks 0 days, completed weeks of gestation

Trial locations and contacts

22 sites in 1 country.

22 sites in 1 country

United States22 sites
  • University of New Mexico

    Albuquerque, New Mexico, 87131

  • Emory University

    Atlanta, Georgia, 30303

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35233

  • Tufts Medical Center

    Boston, Massachusetts, 02111

  • Wake Forest University

    Charlotte, North Carolina, 27157

  • Cincinnati Children's Medical Center

    Cincinnati, Ohio, 45267

  • Case Western Reserve University, Rainbow Babies and Children's Hospital

    Cleveland, Ohio, 44106

  • University of Texas Southwestern Medical Center at Dallas

    Dallas, Texas, 75235

  • Wayne State University

    Detroit, Michigan, 48201

  • RTI International

    Durham, North Carolina, 27705

  • Duke University

    Durham, North Carolina, 27710

  • University of Texas Health Science Center at Houston

    Houston, Texas, 77030

  • Indiana University

    Indianapolis, Indiana, 46202

  • University of Iowa

    Iowa City, Iowa, 52242

  • University of Tennessee

    Memphis, Tennessee, 38163

  • University of Miami

    Miami, Florida, 33136

  • Yale University

    New Haven, Connecticut, 06504

  • Stanford University

    Palo Alto, California, 94304

  • Brown University, Women & Infants Hospital of Rhode Island

    Providence, Rhode Island, 02905

  • University of Rochester

    Rochester, New York, 14642

  • University of Utah

    Salt Lake City, Utah, 84108

  • University of California at San Diego

    San Diego, California, 92103-8774

Other trials in United States

About this study

Official title: Surfactant Positive Airway Pressure and Pulse Oximetry Trial (SUPPORT) in Extremely Low Birth Weight Infants

This study compared the use of continuous positive airway pressure initiated at birth with the early administration of surfactant administered through a tube in the windpipe within 1 hour of birth for premature infants born at 24 to 27 weeks gestation. In addition, these infants within 2 hours of birth, had a special pulse oximeter placed to continuously monitor their oxygen saturation in two different target ranges (85-89% or 91-95%). This study helped determine whether or not these two management strategies affect chronic lung disease and survival of premature infants.

Read the detailed description

Study subjects were infants of 24 0/7ths to 27 6/7th weeks at birth for which a decision has been made to provide full resuscitation as required. Infants 27 weeks or less gestation (completed weeks by best obstetric estimate) were enrolled because more than 80% of such infants in the Network are intubated, usually early in their neonatal course. The feasibility trial demonstrated that the five NICHD centers involved could reduce intubation in the delivery room to less than 50% of such infants if they are not intubated for surfactant. We excluded infants of 23 weeks or less in view of their extremely high mortality and morbidity, and their almost universal need for delivery room intubation for resuscitation. Secondary studies included: neuroimaging/MRI, growth, and breathing outcomes.

Strata: There were two randomization strata, infants of 24 0/7ths to 25 6/7ths weeks, and infants of 26 0/7ths-27 6/7ths weeks by best obstetrical estimate.

Randomization:

Randomization was stratified by gestational age group, occurred prior to delivery for consented deliveries, and was performed by utilizing specially prepared double-sealed envelopes. Deliveries were randomized as a unit, thus multiples, twins, triplets, etc. were randomized to the same arm of the trial.

Informed Consent:

Parents were approached prior to delivery for informed consent, and their infants enrolled at delivery.

Study Intervention: Mode of Ventilatory Support The intervention began after birth when the infant was given to the resuscitation team. The conduct of the resuscitation followed usual guidelines, and once stabilized, all Control infants in both strata received prophylactic/early surfactant (within one hour of age), whereas all Treatment infants were placed on CPAP/PEEP following stabilization, and were intubated only for resuscitation indications.

Pulse Oximeter Allocation:

Infants were randomized to receive either a high- or low-saturation of peripheral oxygen (SpO2) as monitored by a study oximeter immediately following NICU admission, with a maximum allowable delay of two hours following admission.

The SUPPORT Trial recruitment was temporarily paused on November 23, 2005 based on concern regarding pulse oximeter readings > 95% and due to concern regarding separation of the two arms of the oximetry portion of the study. Further analyses were performed which showed that infants on room air accounted for a significant portion of pulse oximetry saturations above 95%. Separation of the two groups was reanalyzed based on time spent in room air and the duration of time spent at individual SpO2 values, which both showed group differences. The trial was restarted on February 6, 2006.

Follow-up: Subjects will be seen for a follow-up visit at 18-22 months corrected age to look at neurodevelopment.

Extended follow-up: Subjects enrolled in the Neuroimaging/MRI secondary study will also be seen for a follow-up visit at 6-7 years to look at later school-age development. Subjects attending the 6-7 year follow-up visit will be invited to participate in this secondary study which will analyze the relationship of salivary cortisol and dehydroepiandrosterone (DHEA) to: (a) blood pressure and adiposity; (b) prenatal and postnatal growth; and (c) DNA methylation patterns.

Being tested
Surfactant, Continuous Positive Airway Pressure (CPAP), Supplemental oxygen with target saturation of 85 to 89%, Supplemental oxygen with target saturation of 91 to 95%
Keywords
NICHD Neonatal Research Network, Extremely Low Birth Weight (ELBW), Very Low Birth Weight (VLBW), Prematurity, Mechanical ventilation, Surfactant, Intubation, Neurodevelopmental impairment, Pulse oximetry, Oxygen saturation, Positive-Pressure Respiration
Medical subject headings
Infant, Newborn, Diseases, Premature Birth, Bronchopulmonary Dysplasia, Retinopathy of Prematurity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SurfactantDrug

    Intubation and administration of surfactant by 1 hour of age.

  • Continuous Positive Airway Pressure (CPAP)Device

    Also called CPAP

    Continuous Positive Airway Pressure/Positive End Expiratory Pressure (CPAP/PEEP) begun in the delivery room and continuing in the NICU

  • Supplemental oxygen with target saturation of 85 to 89%Drug

    Also called Low oxygen

    Supplemental oxygen in the range of 85% to 89% until the infant is no longer requiring ventilatory support or oxygen

  • Supplemental oxygen with target saturation of 91 to 95%Drug

    Also called High oxygen

    Supplemental oxygen in the range of 91% to 95% until the infant is no longer requiring ventilatory support or oxygen.

Study groups in NCT00233324
Study groupRoleWhat they receive
Surfactant and Low OxygenExperimentalAdministration of surfactant by endotracheal tube and supplemental oxygen with target saturation of 85% to 89%
Receives: Drug: Surfactant; Drug: Supplemental oxygen with target saturation of 85 to 89%
Surfactant and High OxygenExperimentalAdministration of surfactant by endotracheal tube and supplemental oxygen with target saturationof 91% to 95%
Receives: Drug: Surfactant; Drug: Supplemental oxygen with target saturation of 91 to 95%
CPAP and Low OxygenExperimentalAdministration of continuous positive airway pressure (CPAP) and supplemental oxygen with target saturation of 85% to 89%
Receives: Device: Continuous Positive Airway Pressure (CPAP); Drug: Supplemental oxygen with target saturation of 85 to 89%
CPAP and High OxygenExperimentalAdministration of continuous positive airway pressure (CPAP)and supplemental oxygen with target saturation of 91% to 95%
Receives: Device: Continuous Positive Airway Pressure (CPAP); Drug: Supplemental oxygen with target saturation of 91 to 95%

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Survival Without Bronchopulmonary Dysplasia (BPD)

    Measured: 36 weeks

  2. Survival Without Severe Retinopathy of Prematurity (ROP) (Threshold Disease or the Need for Surgery)

    Measured: 55 weeks

Secondary outcomes (17)
  1. Death or Neurodevelopmental Impairment

    Measured: 18-22 months

  2. Duration of Mechanical Ventilation

    The length in days that an individual was on mechanical ventilation which includes high frequency and conventional ventilation.

    Measured: Entire NICU stay, up to 120 days

  3. Survival Without Ventilation

    Surviving the first 7 days of life without any need for ventilation by day 7

    Measured: From birth through first 7 days of life.

  4. Received Surfactant Treatment

    Received any surfactant treatment.

    Measured: From birth through 120 days of life.

  5. Number of Participants With Air Leaks

    Number of participants with air leaks including pnemothorax, pulmonary interstitial emphysema (PIE), and pneumopericardium.

    Measured: From birth through first 14 days of life.

  6. Physiological Bronchopulmonary Dysplasia

    Infants who received support via ventilator or CPAP at 36 weeks PMA. Alternatively, infants who received low levels of supplemental oxygen (<30%) at 36 weeks PMA may have been eligible for a physiologic challenge in which there was an attempt to wean the infant to room air. Specifically, infants were eligible for the challenge if at 36 weeks PMA if they were receiving effective oxygen <27% and had majority saturation >90%, or they were receiving effective oxygen 27-30% and had majority saturation >96%, or they were receiving room air by nasal cannula. The challenge took place between 36 and 37 weeks PMA. Those who were not challenged because their level of support increased (support with CPAP or ventilation or increased oxygen) were considered to have BPD, as were those who failed the challenge.

    Measured: 36 weeks post menstrual age.

  7. Death

    Participants who died by their follow-up visit at 18-22 months.

    Measured: 18-22 months

  8. Severe Intraventricular Hemorrhage (IVH)

    There are four grades of intraventricular hemorrhage: Grade I - echodensity/hemorrhage is confied to the germinal matrix. Grade II - echodensity/hemorrhage in the lateral ventricle(s) without distention. Grade III - echodensity/hemorrhage in the lateral ventricle(s) with distention. Grade IV - echodense lesion in the parenchyma. Severe IVH is defined as having IVH grades of III or IV.

    Measured: From birth through first 120 days of life.

  9. Periventricular Leukomalacia (PVL)

    Increased echogenicity or cysts in periventricular region.

    Measured: From birth through first 120 days of life.

  10. Threshold Retinopathy of Prematurity (ROP) Requiring Surgery

    Diagnosis of retinopathy of prematurity which resulted in requiring surgery.

    Measured: From birth through first 120 days of life.

  11. Endotracheal Intubation

    Insertion of a tube into the trachea to allow positive pressure ventilation for breathing.

    Measured: Delivery Room, post-delivery

  12. Duration of Oxygen Supplementation

    The length of time in days that a participant had oxygen supplementation.

    Measured: From birth through first 120 days of life.

  13. Pulse Oximetry Values > 90%

    Percentage of time spent above 90% oxygen saturation.

    Measured: From birth through first 120 days of life.

  14. Blindness in at Least One Eye

    Blindness in at least one eye by 18-22 months of life.

    Measured: 18-22 months

  15. Received Postnatal Steroids

    Participant received any doses or courses of systemic steroids to prevent or treat bronchopulmonary dysplasia/chronic lung disease.

    Measured: From birth through first 120 days of life.

  16. Necrotizing Enterocolitis (NEC)

    Proven necrotizing enterocolitis (NEC) diagnosis using the Modified Bell's Staging Criteria for NEC.

    Measured: From birth through first 120 days of life.

  17. Cerebral Palsy

    Incidence of cerebral palsy.

    Measured: 18-22 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Oct 2005 (estimated)
  2. Study startFeb 2005
  3. Primary completionFeb 2009
  4. Study completionAug 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
None (open label)
Enrolment
1,316 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00233324
Sponsor's protocol ID
NICHD-NRN-0033
Other IDs
U10HD021364, U10HD021373, U10HD021385, U10HD027851, U10HD027853, U10HD027856, U10HD027871, U10HD027880
Acronym
SUPPORT
Status last verified
Apr 2019
First submitted
3 Oct 2005
Last updated
18 Apr 2019
Data monitoring committee
Yes

Publications

  • Deuticke B. Monocarboxylate transport in red blood cells: kinetics and chemical modification. Methods Enzymol. 1989;173:300-29. doi: 10.1016/s0076-6879(89)73020-2. No abstract available.

    PubMed 2674614
  • SUPPORT Study Group of the Eunice Kennedy Shriver NICHD Neonatal Research Network; Carlo WA, Finer NN, Walsh MC, Rich W, Gantz MG, Laptook AR, Yoder BA, Faix RG, Das A, Poole WK, Schibler K, Newman NS, Ambalavanan N, Frantz ID 3rd, Piazza AJ, Sanchez PJ, Morris BH, Laroia N, Phelps DL, Poindexter BB, Cotten CM, Van Meurs KP, Duara S, Narendran V, Sood BG, O'Shea TM, Bell EF, Ehrenkranz RA, Watterberg KL, Higgins RD. Target ranges of oxygen saturation in extremely preterm infants. N Engl J Med. 2010 May 27;362(21):1959-69. doi: 10.1056/NEJMoa0911781. Epub 2010 May 16.

    PubMed 20472937
  • SUPPORT Study Group of the Eunice Kennedy Shriver NICHD Neonatal Research Network; Finer NN, Carlo WA, Walsh MC, Rich W, Gantz MG, Laptook AR, Yoder BA, Faix RG, Das A, Poole WK, Donovan EF, Newman NS, Ambalavanan N, Frantz ID 3rd, Buchter S, Sanchez PJ, Kennedy KA, Laroia N, Poindexter BB, Cotten CM, Van Meurs KP, Duara S, Narendran V, Sood BG, O'Shea TM, Bell EF, Bhandari V, Watterberg KL, Higgins RD. Early CPAP versus surfactant in extremely preterm infants. N Engl J Med. 2010 May 27;362(21):1970-9. doi: 10.1056/NEJMoa0911783. Epub 2010 May 16.

    PubMed 20472939
  • Rich WD, Auten KJ, Gantz MG, Hale EC, Hensman AM, Newman NS, Finer NN; National Institute of Child Health and Human Development Neonatal Research Network. Antenatal consent in the SUPPORT trial: challenges, costs, and representative enrollment. Pediatrics. 2010 Jul;126(1):e215-21. doi: 10.1542/peds.2009-3353. Epub 2010 Jun 29.

    PubMed 20587676
  • Di Fiore JM, Walsh M, Wrage L, Rich W, Finer N, Carlo WA, Martin RJ; SUPPORT Study Group of Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. Low oxygen saturation target range is associated with increased incidence of intermittent hypoxemia. J Pediatr. 2012 Dec;161(6):1047-52. doi: 10.1016/j.jpeds.2012.05.046. Epub 2012 Jun 26.

    PubMed 22738947
  • Rich W, Finer NN, Gantz MG, Newman NS, Hensman AM, Hale EC, Auten KJ, Schibler K, Faix RG, Laptook AR, Yoder BA, Das A, Shankaran S; SUPPORT and Generic Database Subcommittees of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. Enrollment of extremely low birth weight infants in a clinical research study may not be representative. Pediatrics. 2012 Mar;129(3):480-4. doi: 10.1542/peds.2011-2121. Epub 2012 Feb 27.

    PubMed 22371462
  • Ambalavanan N, Carlo WA, Wrage LA, Das A, Laughon M, Cotten CM, Kennedy KA, Laptook AR, Shankaran S, Walsh MC, Higgins RD; SUPPORT Study Group of the NICHD Neonatal Research Network. PaCO2 in surfactant, positive pressure, and oxygenation randomised trial (SUPPORT). Arch Dis Child Fetal Neonatal Ed. 2015 Mar;100(2):F145-9. doi: 10.1136/archdischild-2014-306802. Epub 2014 Nov 25.

    PubMed 25425651
  • Navarrete CT, Wrage LA, Carlo WA, Walsh MC, Rich W, Gantz MG, Das A, Schibler K, Newman NS, Piazza AJ, Poindexter BB, Shankaran S, Sanchez PJ, Morris BH, Frantz ID 3rd, Van Meurs KP, Cotten CM, Ehrenkranz RA, Bell EF, Watterberg KL, Higgins RD, Duara S; Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. Growth Outcomes of Preterm Infants Exposed to Different Oxygen Saturation Target Ranges from Birth. J Pediatr. 2016 Sep;176:62-68.e4. doi: 10.1016/j.jpeds.2016.05.070. Epub 2016 Jun 22.

    PubMed 27344218
  • Stevens TP, Finer NN, Carlo WA, Szilagyi PG, Phelps DL, Walsh MC, Gantz MG, Laptook AR, Yoder BA, Faix RG, Newman JE, Das A, Do BT, Schibler K, Rich W, Newman NS, Ehrenkranz RA, Peralta-Carcelen M, Vohr BR, Wilson-Costello DE, Yolton K, Heyne RJ, Evans PW, Vaucher YE, Adams-Chapman I, McGowan EC, Bodnar A, Pappas A, Hintz SR, Acarregui MJ, Fuller J, Goldstein RF, Bauer CR, O'Shea TM, Myers GJ, Higgins RD; SUPPORT Study Group of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. Respiratory outcomes of the surfactant positive pressure and oximetry randomized trial (SUPPORT). J Pediatr. 2014 Aug;165(2):240-249.e4. doi: 10.1016/j.jpeds.2014.02.054. Epub 2014 Apr 13.

    PubMed 24725582
  • Vaucher YE, Peralta-Carcelen M, Finer NN, Carlo WA, Gantz MG, Walsh MC, Laptook AR, Yoder BA, Faix RG, Das A, Schibler K, Rich W, Newman NS, Vohr BR, Yolton K, Heyne RJ, Wilson-Costello DE, Evans PW, Goldstein RF, Acarregui MJ, Adams-Chapman I, Pappas A, Hintz SR, Poindexter B, Dusick AM, McGowan EC, Ehrenkranz RA, Bodnar A, Bauer CR, Fuller J, O'Shea TM, Myers GJ, Higgins RD; SUPPORT Study Group of the Eunice Kennedy Shriver NICHD Neonatal Research Network. Neurodevelopmental outcomes in the early CPAP and pulse oximetry trial. N Engl J Med. 2012 Dec 27;367(26):2495-504. doi: 10.1056/NEJMoa1208506.

    PubMed 23268664
  • Hintz SR, Bann CM, Vohr BR, McGowan EC, Vaucher YE, Fuller MG, Das A, Wilson-Costello DE, Garey DM, Sibley CK, Higgins RD; Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. Neonatal Neuroimaging Among Children Born Extremely Preterm and Motor Coordination Impairment at School-Age. J Pediatr. 2025 Oct;285:114704. doi: 10.1016/j.jpeds.2025.114704. Epub 2025 Jun 24.

    PubMed 40571094
  • Lowe J, Bann CM, Dempsey AG, Fuller J, Taylor HG, Gustafson KE, Watson VE, Vohr BR, Das A, Shankaran S, Yolton K, Ball MB, Hintz SR; Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. Do Bayley-III Composite Scores at 18-22 Months Corrected Age Predict Full-Scale IQ at 6-7 Years in Children Born Extremely Preterm? J Pediatr. 2023 Dec;263:113700. doi: 10.1016/j.jpeds.2023.113700. Epub 2023 Aug 26.

    PubMed 37640232
  • Lowe J, Fuller JF, Dempsey AG, Do B, Bann CM, Das A, Gustafson KE, Vohr BR, Hintz SR, Watterberg KL; SUPPORT NEURO School-Age Study Subcommittee of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. Cortisol awakening response and developmental outcomes at 6-7 years in children born extremely preterm. Pediatr Res. 2023 Feb;93(3):689-695. doi: 10.1038/s41390-022-02113-9. Epub 2022 Jun 17.

    PubMed 35715492
  • Duncan AF, Bann CM, Dempsey AG, Adams-Chapman I, Heyne R, Hintz SR; Eunice Kennedy Shriver National Institute of Child Health and Development Neonatal Research Network. Neuroimaging and Bayley-III correlates of early hand function in extremely preterm children. J Perinatol. 2019 Mar;39(3):488-496. doi: 10.1038/s41372-019-0314-0. Epub 2019 Jan 28.

    PubMed 30692613
  • Duncan AF, Bann CM, Dempsey A, Peralta-Carcelen M, Hintz S; Eunice Kennedy Shriver National Institute of Child Health and Development Neonatal Research Network. Behavioral Deficits at 18-22 Months of Age Are Associated with Early Cerebellar Injury and Cognitive and Language Performance in Children Born Extremely Preterm. J Pediatr. 2019 Jan;204:148-156.e4. doi: 10.1016/j.jpeds.2018.08.059. Epub 2018 Oct 3.

    PubMed 30292492

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Surfactant, Continuous Positive Airway Pressure (CPAP) and Supplemental oxygen with target saturation of 85 to 89% in people with Infant, Newborn, Diseases and Other Preterm Infants, run by NICHD Neonatal Research Network at 22 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 22 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 5 Dec 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Survival Without Bronchopulmonary Dysplasia (BPD) (time frame: 36 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00233324, which also lists 19 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Apr 2019.

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