Does the addition of clonidine to opioid therapy improve outcomes in infants with Neonatal Abstinence Syndrome?

To undertake a literature search and critical appraisal of best available evidence to answer the clinical question: Does the addition of clonidine (I) to standard treatment with an opioid (C) improve outcomes (O) in infants with Neonatal Abstinence Syndrome? A search of both comprehensive (MedLine and Embase) and pre-filtered databases (Dynamed, UpToDate and TRIP), utilising Boolean Operators to combine search terms appropriately. Three relevant studies were identified. One paper describing the outcomes of a randomised controlled trial by Agthe et al. (2009) most accurately answered the clinical question posed. This paper was critically appraised, and evidence applied to the clinical scenario. The use of clonidine as an adjunct to opioid in the management of infants with NAS reduces the total number of treatment days and dose of opioid required to control symptoms. However, there is a higher risk of rebound in symptoms post-cessation of opioid and clinicians need to account for this in their discharge planning. More large scale, multi-centre high-quality research is needed to clarify the role of clonidine in the treatment of NAS: as monotherapy versus adjunct, the optimal dose and longer-term impact on neurodevelopment.