The effect of corticosteroids on pulmonary function in a large cohort of late adolescents and adults with Duchenne muscular dystrophy

Pietrusz, Aleksandra, Stimpson, Georgia, Astin, Rónan, Guglieri, Michela, Desikan, Mahalekshmi, Schiava, Marianela, Brady, Stefen, Soleimani, Bebak, Freebody, Jane, Nickol, Annabel, Michaelides, George, Ramdharry, Gita, Savvatis, Konstantinos, James, Meredith, K., Muni Lofra, Robert, Marini Bettolo, Chiara, Muntoni, Francesco and Quinlivan, Ros (2026) The effect of corticosteroids on pulmonary function in a large cohort of late adolescents and adults with Duchenne muscular dystrophy. Muscle & Nerve. ISSN 0148-639X (In Press)

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Abstract

Introduction/Aims: Corticosteroids (CS) are routinely prescribed for children with Duchenne muscular dystrophy (DMD) to delay disease progression. However, evidence supporting their use beyond adolescence into adulthood is limited, resulting in inconsistent clinical practice. The aim of this study was to assess the effect of continuing CS on respiratory function in males with DMD age ≥16 years and to understand the impact of CS discontinuation. Methods: This was a multi-centre, retrospective cohort study. Pulmonary function data from medical records of 208 males, stratified into 3 groups (CS-continued, CS-stopped, CS-naïve) was assessed. Results: Data was available for 208 subjects (age 16y–40.5y). Continued CS use was associated with delayed respiratory decline compared with CS-stopped or CS-naive, demonstrated by later attainment of key pulmonary milestones (forced vital capacity (FVC) <1 L (24.75y vs 19.25y vs 20.5y; p<0.0001), FVC percent predicted <50% (17.5y vs 16.25y vs 16.75y; p=0.0031) and <30% (22.79y vs 17.04y vs 18.38y; p<0.0001)) and initiation of non-invasive ventilation (NIV) (median age 19.17y vs 16y vs 17.33y; p=0.0031) . Longitudinal measures of lung function declined fastest in the CS-stopped group (p<0.05). Discussion: Continuing CS therapy into late adolescence and adulthood slows respiratory decline in DMD, even at doses below recommended levels. The most rapid rate of decline appeared in the CS-stopped group. Clinically, these findings support long-term CS continuation in DMD to preserve pulmonary function and delay the onset of NIV. However, the balance of benefits vs side effects of long-term CS and optimal CS dose in adults remains unclear.

Item Type:	Article
Additional Information:	Data Availability Statement: Data are available from the corresponding author upon reasonable request
Uncontrolled Keywords:	dmd,adolescent,adult,corticosteroids,pulmonary,1*,this is outside my research area and therefore not ref-able for my unit of assessment ,/dk/atira/pure/researchoutput/REFrank/1_
Faculty \ School:	Faculty of Social Sciences > Norwich Business School
UEA Research Groups:	Faculty of Social Sciences > Research Groups > Employment Systems and Institutions
Depositing User:	LivePure Connector
Date Deposited:	11 Jun 2026 11:32
Last Modified:	11 Jun 2026 11:32
URI:	https://ueaeprints.uea.ac.uk/id/eprint/103363
DOI:	10.1002/mus.70312

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