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Current Opinion in Allergy & Clinical Immunology:
doi: 10.1097/ACI.0b013e3283489c0e
Pharmacotherapy and evidence based medicine: Edited by David A. Khan and Enrico Compalati

Towards the Grade of Recommendations, Assessment, Development and Evaluation system: methods and results of budesonide/formoterol maintenance and reliever therapy research

Braido, Fulvio; Baiardini, Ilaria; Compalati, Enrico; Bordo, Alberto; Canonica, Giorgio W.

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Abstract

Purpose of review: Guidelines for clinical practice are expected to gather evidence-based recommendations to support optimal medical behaviours. The aim of the current review is to explore how currently available research regarding the strategy of using budesonide/formoterol (BUD/FORM) as maintenance and reliever therapy (Symbicort SMART) covers the items considered by the Grade of Recommendations, Assessment, Development and Evaluation (GRADE) system, through a comparative analysis of methodological approaches, clinical outcomes, patient-reported outcomes and costs, in order to highlight uncovered areas.

Recent findings: Thirteen trials providing data on 21 095 analysed patients were available. No serious limits in methodological study features were found. Evaluation of the clinical outcome was consistent with the efficacy of BUD/FORM maintenance and reliever therapy. As the time to first exacerbation was the primary outcome in most of the studies, conclusive indications cannot be drawn regarding other clinical outcomes or patient-reported outcomes, which were investigated as secondary outcomes. A comprehensive systematic review exploring all critical and important outcomes is desirable, but further research concerning the safety issues of Long Acting β2 Agonists (LABA) and patients’ reported outcomes about the SMART in respect to alternative strategies is likely to affect a clear recommendation in the near future.

Summary: The efficacy of BUD/FORM maintenance and reliever therapy in extending the time to first exacerbation appears consistent between studies. Further studies exploring all patients’ important outcomes are needed. Clinical and economic assessments are worthy of being investigated to verify the directness of the evidence in respect to real life patients and different geographical realities.

© 2011 Lippincott Williams & Wilkins, Inc.

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