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Inhaled corticosteroids alone and in combination with long-acting β2 receptor agonists to treat reduced lung function in preterm-born children: a randomized clinical trial

Goulden, Nia, Cousins, Michael, Hart, Kylie, Jenkins, Alison, Willets, Gillian, Yendle, Louise, Doull, Iolo, Williams, E Mark, Hoare, Zoe and Kotecha, Sailesh ORCID: 2022. Inhaled corticosteroids alone and in combination with long-acting β2 receptor agonists to treat reduced lung function in preterm-born children: a randomized clinical trial. JAMA Pediatrics 176 (2) , pp. 133-141. 10.1001/jamapediatrics.2021.5111

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Importance Decreases in future lung function are a hallmark of preterm birth, but studies for management of decreased lung function are limited. Objective To determine whether 12 weeks of treatment with inhaled corticosteroids (ICS) alone or in combination with long-acting β2 agonists (LABA) improves spirometry and exercise capacity in school-aged preterm-born children who had percent predicted forced expiratory volume in 1 second (%FEV1) less than or equal to 85% compared with inhaled placebo treatment. Design, Setting, and Participants A double-blind, randomized, placebo-controlled trial was conducted to evaluate ICS and ICS/LABA against placebo. Preterm-born children (age, 7-12 years; gestation ≤34 weeks at birth) who did not have clinically significant congenital, cardiopulmonary, or neurodevelopmental abnormalities underwent spirometry, exercise testing, and measurement of fractional exhaled nitric oxide before and after treatment. A total of 144 preterm-born children at the Children’s Hospital for Wales in Cardiff, UK, were identified and enrolled between July 1, 2017, and August 31, 2019. Interventions Each child was randomized to 1 of 3 cohorts: fluticasone propionate, 50 μg, with placebo; fluticasone propionate, 50 μg, with salmeterol, 25 μg; or placebo inhalers, all given as 2 puffs twice daily for 12 weeks. Children receiving preexisting ICS treatment underwent washout prior to randomization to ICS or ICS/LABA. Main Outcomes and Measures The primary outcome was between-group differences assessed by adjusted pretreatment and posttreatment differences of %FEV1 using analysis of covariance. Intention-to-treat analysis was conducted. Results Of 144 preterm-born children who were identified with %FEV1 less than or equal to 85%, 53 were randomized. Treatment allocation was 20 children receiving ICS (including 5 with prerandomization ICS), 19 children receiving ICS/LABA (including 4 with prerandomization ICS), and 14 children receiving placebo. The mean (SD) age of children was 10.8 (1.2) years, and 29 of the randomized children (55%) were female. The posttreatment %FEV1 was adjusted for sex, gestation, bronchopulmonary dysplasia, intrauterine growth restriction, pretreatment corticosteroid status, treatment group, and pretreatment values. Posttreatment adjusted means for %FEV1, using analysis of covariance, were 7.7% (95% CI, −0.27% to 15.72%; P = .16) higher in the ICS group and 14.1% (95% CI, 7.3% to 21.0%; P = .002) higher in the ICS/LABA group compared with the placebo group. Active treatment decreased the fractional exhaled nitric oxide and improved postexercise bronchodilator response but did not improve exercise capacity. One child developed cough when starting inhaler treatment; no other adverse events reported during the trial could be attributed to the inhaler treatment.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > RJ Pediatrics
Publisher: American Medical Association
ISSN: 2168-6203
Funders: Medical Research Council, GSK UK
Date of First Compliant Deposit: 24 May 2022
Date of Acceptance: 3 October 2021
Last Modified: 21 Jun 2023 17:32

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