Single dose of budesonide/formoterol turbuhaler compared to salbutamol pMDI for speed of bronchodilator onset in asthma: a randomised cross-over trial. Kearns, N., Williams, M., Bruce, P., Black, M., Kearns, C., Sparks, J., Braithwaite, I., Weatherall, M., & Beasley, R. Thorax, July, 2022.
doi  abstract   bibtex   
OBJECTIVE: To compare bronchodilator response after to salbutamol and budesonide/formoterol in adults with stable asthma. METHODS: A double-blind, cross-over, single-centre, placebo-controlled, non-inferiority trial. Adults with stable asthma were randomised to different orders of two treatment regimens: two actuations of placebo via MDI and one actuation of budesonide/formoterol 200/6 µg via turbuhaler; and one actuation of placebo turbuhaler and two actuations of salbutamol 100 µg via MDI. The primary outcome measure was FEV1 after 2 min. Secondary outcome measures included FEV1, mBorg Dyspnoea Scale score and visual analogue score for breathlessness over 30 min. RESULTS: Forty-nine of 50 potential participants were randomised. One participant withdrew following the first intervention visit and another could not be randomised due to COVID-19 restrictions. The mean (SD) change from baseline FEV1 2 min after treatment administration for budesonide/formoterol and salbutamol was 0.08 (0.14) L, n=49, and 0.17 (0.18) L, n=48, respectively, mean (95% CI) paired difference of -0.097 L (-0.147 to -0.047), p=0.07, against a non-inferiority bound of -0.06 L. In the secondary analysis, FEV1 over 30 min was lower for budesonide/formoterol compared with salbutamol, difference (95% CI): -0.10 (-0.12 to -0.08) L, p\textless0.001. There were no differences in Visual Analogue Scale score or mBorg Dyspnoea Scale score between treatments. CONCLUSION: The results do not support the primary hypothesis of non-inferiority at the boundary of -0.06 L for the difference between budesonide/formoterol 200/6 µg compared with salbutamol 200 µg for FEV1 at 2 min, and could be consistent with inferiority with a p value of 0.07. For the secondary analysis of FEV1 measurements over time, the FEV1 was higher with salbutamol. TRIAL REGISTRATION NUMBER: Australian and New Zealand Clinical Trials Registry (ACTRN 12619001387112).
@article{kearns_single_2022,
	title = {Single dose of budesonide/formoterol turbuhaler compared to salbutamol {pMDI} for speed of bronchodilator onset in asthma: a randomised cross-over trial},
	issn = {1468-3296},
	shorttitle = {Single dose of budesonide/formoterol turbuhaler compared to salbutamol {pMDI} for speed of bronchodilator onset in asthma},
	doi = {10.1136/thorax-2022-219052},
	abstract = {OBJECTIVE: To compare bronchodilator response after to salbutamol and budesonide/formoterol in adults with stable asthma.
METHODS: A double-blind, cross-over, single-centre, placebo-controlled, non-inferiority trial. Adults with stable asthma were randomised to different orders of two treatment regimens: two actuations of placebo via MDI and one actuation of budesonide/formoterol 200/6 µg via turbuhaler; and one actuation of placebo turbuhaler and two actuations of salbutamol 100 µg via MDI. The primary outcome measure was FEV1 after 2 min. Secondary outcome measures included FEV1, mBorg Dyspnoea Scale score and visual analogue score for breathlessness over 30 min.
RESULTS: Forty-nine of 50 potential participants were randomised. One participant withdrew following the first intervention visit and another could not be randomised due to COVID-19 restrictions. The mean (SD) change from baseline FEV1 2 min after treatment administration for budesonide/formoterol and salbutamol was 0.08 (0.14) L, n=49, and 0.17 (0.18) L, n=48, respectively, mean (95\% CI) paired difference of -0.097 L (-0.147 to -0.047), p=0.07, against a non-inferiority bound of -0.06 L. In the secondary analysis, FEV1 over 30 min was lower for budesonide/formoterol compared with salbutamol, difference (95\% CI): -0.10 (-0.12 to -0.08) L, p{\textless}0.001. There were no differences in Visual Analogue Scale score or mBorg Dyspnoea Scale score between treatments.
CONCLUSION: The results do not support the primary hypothesis of non-inferiority at the boundary of -0.06 L for the difference between budesonide/formoterol 200/6 µg compared with salbutamol 200 µg for FEV1 at 2 min, and could be consistent with inferiority with a p value of 0.07. For the secondary analysis of FEV1 measurements over time, the FEV1 was higher with salbutamol.
TRIAL REGISTRATION NUMBER: Australian and New Zealand Clinical Trials Registry (ACTRN 12619001387112).},
	language = {eng},
	journal = {Thorax},
	author = {Kearns, Nethmi and Williams, Mathew and Bruce, Pepa and Black, Melissa and Kearns, Ciléin and Sparks, Jenny and Braithwaite, Irene and Weatherall, Mark and Beasley, Richard},
	month = jul,
	year = {2022},
	pmid = {35851045},
	keywords = {asthma, inhaler devices},
	pages = {thoraxjnl--2022--219052},
}

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