Bath additives for the treatment of childhood eczema (BATHE): protocol for multicentre parallel group randomised trial
Ridd, Matthew J.
Francis, Nicholas Andrew
Thomas, Kim S.
Williams, Hywel C.
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AbstractIntroduction Bath emollients are widely prescribed for childhood eczema, yet evidence of their benefits over direct application of emollients is lacking. Objectives To determine the clinical and cost-effectiveness of adding bath emollient to the standard management of eczema in children Methods and analysis Design: Pragmatic open 2-armed parallel group randomised controlled trial. Setting: General practitioner (GP) practices in England and Wales. Participants: Children aged over 12 months and less than 12 years with eczema, excluding inactive or very mild eczema (5 or less on Nottingham Eczema Severity Scale). Interventions: Children will be randomised to either bath emollients plus standard eczema care or standard eczema care only. Outcome measures: Primary outcome is long-term eczema severity, measured by the Patient-Oriented Eczema Measure (POEM) repeated weekly for 16 weeks. Secondary outcomes include: number of eczema exacerbations resulting in healthcare consultations over 1 year; eczema severity over 1 year; disease-specific and generic quality of life; medication use and healthcare resource use; cost-effectiveness. Aiming to detect a mean difference between groups of 2.0 (SD 7.0) in weekly POEM scores over 16 weeks (significance 0.05, power 0.9), allowing for 20% loss to follow-up, gives a total sample size of 423 children. We will use repeated measures analysis of covariance, or a mixed model, to analyse weekly POEM scores. We will control for possible confounders, including baseline eczema severity and child's age. Cost-effectiveness analysis will be carried out from a National Health Service (NHS) perspective. Ethics and dissemination This protocol was approved by Newcastle and North Tyneside 1 NRES committee 14/NE/0098. Follow-up will be completed in 2017. Findings will be disseminated to participants and carers, the public, dermatology and primary care journals, guideline developers and decision-makers.
Santer, Miriam, Rumsby, Kate, Ridd, Matthew J., Francis, Nicholas Andrew <http://orca.cf.ac.uk/view/cardiffauthors/A000696Q.html>, Stuart, Beth, Chorozoglou, Maria, Wood, Wendy, Roberts, Amanda, Thomas, Kim S., Williams, Hywel C. and Little, Paul 2015. Bath additives for the treatment of childhood eczema (BATHE): protocol for multicentre parallel group randomised trial. BMJ Open 5 (10) , e009575. 10.1136/bmjopen-2015-009575 <http://dx.doi.org/10.1136/bmjopen-2015-009575> file </88065/1/BMJ%20Open-2015-Santer-.pdf>