RT Journal Article SR Electronic T1 Supporting self-care for eczema: protocol for two randomised controlled trials of ECO (Eczema Care Online) interventions for young people and parents/carers JF BMJ Open JO BMJ Open FD British Medical Journal Publishing Group SP e045583 DO 10.1136/bmjopen-2020-045583 VO 11 IS 2 A1 Ingrid Muller A1 Beth Stuart A1 Tracey Sach A1 Julie Hooper A1 Sylvia Wilczynska A1 Mary Steele A1 Kate Greenwell A1 Katy Sivyer A1 Lucy Yardley A1 Hywel C Williams A1 Joanne R Chalmers A1 Paul Leighton A1 Laura M Howells A1 Matthew J Ridd A1 Sandra Lawton A1 Gareth Griffiths A1 Jacqui Nuttall A1 Sinead M Langan A1 Amanda Roberts A1 Amina Ahmed A1 Hayden Kirk A1 Taeko Becque A1 Paul Little A1 Kim S Thomas A1 Miriam Santer YR 2021 UL http://bmjopen.bmj.com/content/11/2/e045583.abstract AB Introduction Eczema care requires management of triggers and various treatments. We developed two online behavioural interventions to support eczema care called ECO (Eczema Care Online) for young people and ECO for families. This protocol describes two randomised controlled trials (RCTs) aimed to evaluate clinical and cost-effectiveness of the two interventions.Methods and analysis Design: Two independent, pragmatic, unmasked, parallel group RCTs with internal pilots and nested health economic and process evaluation studies. Setting: Participants will be recruited from general practitioner practices in England. Participants: Young people aged 13–25 years with eczema and parents and carers of children aged 0–12 years with eczema, excluding inactive or very mild eczema (five or less on Patient-Oriented Eczema Measure (POEM)). Interventions: Participants will be randomised to online intervention plus usual care or to usual eczema care alone. Outcome measures: Primary outcome is eczema severity over 24 weeks measured by POEM. Secondary outcomes include POEM 4-weekly for 52 weeks, quality of life, eczema control, itch intensity (young people only), patient enablement, health service and treatment use. Process measures include treatment adherence, barriers to adherence and intervention usage. Our sample sizes of 303 participants per trial are powered to detect a group difference of 2.5 (SD 6.5) in monthly POEM scores over 24 weeks (significance 0.05, power 0.9), allowing for 20% loss to follow-up. Cost-effectiveness analysis will be from a National Health Service and personal social service perspective. Qualitative and quantitative process evaluation will help understand the mechanisms of action and participant experiences and inform implementation.Ethics and dissemination The study has been approved by South Central Oxford A Research Ethics Committee (19/SC/0351). Recruitment is ongoing, and follow-up will be completed by mid-2022. Findings will be disseminated to participants, the public, dermatology and primary care journals, and policy makers.Trial registration number ISRCTN79282252.