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Inhaled corticosteroids in ventilated preterm neonates: a non-randomized dose-ranging study.

ABSTRACT: BACKGROUND:Inhaled corticosteroids (ICS) offer targeted treatment for bronchopulmonary dysplasia (BPD) with minimal systemic effects compared to systemic steroids. However, dosing of ICS in the management of infants at high-risk of developing BPD is not well established. The objective of this study was to determine an effective dose of ICS for the treatment of ventilator-dependent infants to facilitate extubation or reduce fractional inspired oxygen concentration. METHODS:Forty-one infants born at ?75% from baseline) in ?60% of infants in the group. Oxygen requirements, complications and long-term neurodevelopmental outcomes were also assessed. RESULTS:The median age at enrollment was 22 (10-28) postnatal days. The primary outcome, therapeutic efficacy as defined above, was not achieved in any group. However, there was a significant reduction in post-treatment FiO2 at a dose of 800 ?g bid. No obvious trends were seen in long-term neurodevelopmental outcomes. CONCLUSIONS:Therapeutic efficacy was not achieved with all studied doses of ICS. A significant reduction in oxygen requirements was noted in ventilator-dependent preterm infants at 10-28 days of age when given 800 ?g of HFA-BDP bid. Larger randomized trials of ICS are required to determine efficacy for the management of infants at high-risk for development of BPD. TRIAL REGISTRATION:This clinical trial was registered retrospectively on clinicaltrials.gov. The registration number is NCT03503994 .

SUBMITTER: Raghuram K

PROVIDER: S-EPMC5938808 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Inhaled corticosteroids in ventilated preterm neonates: a non-randomized dose-ranging study.

Raghuram Kamini K Dunn Michael M Jangaard Krista K Reilly Maureen M Asztalos Elizabeth E Kelly Edmond E Vincer Michael M Shah Vibhuti V

BMC pediatrics 20180507 1

<h4>Background</h4>Inhaled corticosteroids (ICS) offer targeted treatment for bronchopulmonary dysplasia (BPD) with minimal systemic effects compared to systemic steroids. However, dosing of ICS in the management of infants at high-risk of developing BPD is not well established. The objective of this study was to determine an effective dose of ICS for the treatment of ventilator-dependent infants to facilitate extubation or reduce fractional inspired oxygen concentration.<h4>Methods</h4>Forty-on ...[more]

PMID: 29734948

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Project description:BackgroundMany patients with chronic obstructive pulmonary disease (COPD) still experience daily symptoms, exacerbations, and accelerated lung function decline, even when receiving maximal combined treatment with inhaled long-acting bronchodilators and corticosteroids. Novel treatment options are needed for these patients. Phosphodiesterases (PDEs) are enzymes that impact a range of cellular functions by modulating levels of cyclic nucleotides, and there is evidence to suggest that combined inhibition of PDE3 and PDE4 can have additive (or perhaps synergistic) effects. This study investigated the efficacy and safety of ensifentrine, a first-in-class dual inhibitor of PDE 3 and 4, in patients with COPD.MethodsThis randomised, double-blind, placebo-controlled, parallel-group, dose-ranging study recruited patients with COPD, post-bronchodilator forced expiratory volume in 1 s (FEV1) 40-80% predicted and FEV1/forced vital capacity ratio ≤ 0.7. Patients were randomised equally to inhale nebulised ensifentrine 0.75, 1.5, 3 or 6 mg or placebo, all twice daily.Primary outcomeplacebo-adjusted difference in peak FEV1 (assessed over 3 h) at Week 4.ResultsThe study took place between July 2017 and February 2018. Of 405 patients randomly assigned to medication, 375 (92.6%) completed the study. For peak FEV1 at Week 4, all four ensifentrine doses were superior to placebo (p ≤ 0.0001) with least squares mean differences of 146 (95% CI 75-216), 153 (83-222), 200 (131-270) and 139 (69-210) mL for ensifentrine 0.75, 1.5, 3 and 6 mg, respectively. Respiratory symptoms (assessed using the Evaluating Respiratory Symptoms questionnaire) were also significantly improved with all ensifentrine doses at Week 4. Adverse events were reported by 33.3, 44.4, 35.4 and 36.3% patients with ensifentrine 0.75, 1.5, 3 and 6 mg, respectively, and 39.2% with placebo.ConclusionsIn this four-week Phase IIb study, all four ensifentrine doses significantly improved bronchodilation and symptoms, with a dose-ranging effect from 0.75 to 3 mg twice daily, and all doses well tolerated. The study supports the continuing development of ensifentrine in COPD.Trial registrationEudraCT 2016-005205-40, registered 30 May 2017.

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Inhaled corticosteroids in ventilated preterm neonates: a non-randomized dose-ranging study.

Publications

Inhaled corticosteroids in ventilated preterm neonates: a non-randomized dose-ranging study.

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