Real-world effectiveness evaluation of budesonide/formoterol Spiromax for the management of asthma and chronic obstructive pulmonary disease in the UK

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METHODS: Patients with asthma and/or COPD who switched to BF Spiromax were matched (1:3) with non-switchers. Data were obtained from the Optimum Patient Care Research Database and Clinical Practice Research Datalink in the UK. The primary end point was the proportion of patients achieving disease control (using the risk domain control (RDC) algorithm); secondary end points were: exacerbation rate, short-acting β2-agonist (SABA) use and treatment stability (achieved RDC; no maintenance treatment change). Non-inferiority was defined as having 95% CI lower bound above -10%, using conditional logistic regression and adjusted for relevant confounders.

OBJECTIVES: Budesonide/formoterol (BF) Spiromax ® is an inhaled corticosteroid/long-acting β2-agonist fixed-dose combination (FDC) inhaler, designed to minimise common inhaler errors and provide reliable and consistent dose delivery in asthma and chronic obstructive pulmonary disease (COPD). We evaluated non-inferiority of BF Spiromax after changing from another FDC inhaler, compared with continuing the original inhaler.

RESULTS: Comparing 385 matched patients (asthma 253; COPD 132) who switched to BF Spiromax with 1091 (asthma 743; COPD 348) non-switchers, non-inferiority of BF Spiromax in RDC was demonstrated (adjusted difference: +6.6%; 95% CI -0.3 to 13.5). Among patients with asthma, switchers to BF Spiromax versus BF Turbuhaler® reported fewer exacerbations (adjusted rate ratio (RR) 0.76;95% CI 0.60 to 0.99; p=0.044); were less likely to use high daily doses of SABA (adjusted OR 0.71;95% CI 0.52 to 0.98; p=0.034); used fewer SABA inhalers (adjusted RR 0.92;95% CI 0.86 to 0.99; p=0.019); and were more likely to achieve treatment stability (adjusted OR 1.44;95% CI 1.02 to 2.04; p=0.037). No significant differences in these end points were seen among patients with COPD.

CONCLUSIONS: Among UK patients with asthma and COPD, real-world use of BF Spiromax was non-inferior to BF Turbuhaler in terms of disease control. Among patients with asthma, switching to BF Spiromax was associated with reduced exacerbations, reduced SABA use and improved treatment stability versus continuing on BF Turbuhaler.


  • Jaco Voorham
  • Nicolas Roche
  • Hicham Benhaddi
  • Marianka van der Tol
  • Victoria Carter
  • Job F.M. van Boven
  • Leif Bjermer
  • Marc Miravitlles
  • David B. Price
External organisations
  • Observational and Pragmatic Research Institute Pte Ltd
  • Paris Descartes University
  • University Medical Center Groningen
  • Skåne University Hospital
  • Vall d'Hebron University Hospital
  • University of Aberdeen
  • Cochin Hospital
  • Teva Pharma Belgium nv
  • University of Groningen
  • CIBER Enfermedades Respiratorias (CIBERES)
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Respiratory Medicine and Allergy


  • asthma, budesonide/formoterol, chronic obstructive pulmonary disease, comparative effectiveness research, disease control, inhalation devices
Original languageEnglish
Article numbere022051
JournalBMJ Open
Issue number10
Publication statusPublished - 2018 Oct 27
Publication categoryResearch