An Exploratory Randomized double-arm controlled trial to evaluate the immunomodulatory effect of low versus high dose of Alveofact with or without Budesonide.
Neonatal respiratory distress syndrome (RDS) is caused by lung immaturity and surfactant deficiency in preterm newborns and is an important cause of morbidity and mortality. Surfactant therapy plays an essential role in the management of RDS as it reduces lung injury and improves survival, While surfactant alone is very effective, some studies showed that its combination with budesonide significantly reduces BPD and inflammatory markers. Neutrophils extracellular traps (NETs) are a defense mechanism where neutrophils are the reaction to microbial infection and cast a net-like structure. NETs are composed of chromatin decondensed and some 30 enzymes and peptides. Many components such as Neutrophil elastase (NE) and Myeloperoxidase enzyme (MPO) have antimicrobial, but also a cytotoxic property that causes tissue injury. The immune regulatory abilities of the pulmonary surfactant are known to alter the function of the adaptive and innate immune cells. So, in this study, The Investigator will Assess the immunomodulatory effect of low and high doses of Alveofact with or without Budesonide.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
60
Intratracheal High-dose Alveofact versus Low-dose Alveofact with or without Budesonide
Budesonide
Egypt Neonatal Intensive Care Units (NICUs), Ain Shams University Cairo, Abbasia, Egypt, 11517
Cairo, Egypt
RECRUITINGAssessment of Neutrophil Extracellular Trap (NET)
Neutrophil Extracellular Trapformation in neutrophil granulocytes as an evaluation of the therapeutic effect of two different doses of Alveofact with and without Steroids in Neonatal respiratory distress syndrome. Isolation of Neutrophil granulocytes from Bronchoalveolar fluid and whole blood samples using Neutrophil-specific magnetic beads. The purity and number of extracted neutrophils will be validated by cell morphology in hematoxylin-eosin staining and fluorescence-activated cell sorting for anti-CD-15 monoclonal antibodies. Assessment of Neutrophil Extracellular Trap (NET) formation: The amount of NET will be quantified by three different assays including; (1): measurement of neutrophil-specific Myeloperoxidase activity, (2): Neutrophil-elastase activity, and (3): Neutrophil-specific cell-free DNA (cfDNA).
Time frame: 48 hours after treatment
comparison of Alveolar with whole blood NET formation
Neutrophil Extracellular Trap (NET) will be extracted in alveolar fluid and compared with whole blood samples
Time frame: 48 hours
Clinical out come
Ventilation Duration in days.
Time frame: 1 month
Assessment of Reactive Oxygen Species (ROS)
the lipid peroxidation will be calorimetrically measured using thiobarbituric acid (TBA) reactive compounds such as malondialdehyde (MDA) in microplates at 532 nm.
Time frame: 48 hours
oxygen needs
FIO2 percentage on invasive and non-invasive respiratory support.
Time frame: 1 month
Hospital stay
Duration of NICU stay will be recorded in Days.
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Time frame: 1 month