Recruitment of adults with moderate eczema for a randomised trial: Comparison of traditional versus modern methods

Australas J Dermatol. 2021 Nov;62(4):e510-e515. doi: 10.1111/ajd.13699. Epub 2021 Sep 3.

Abstract

Background: Clinical trial recruitment is challenging for investigators who often overestimate the pool of qualified, willing subjects. Moreover, there is a paucity of literature, particularly in dermatology, regarding recruitment and the comparative success of advertising strategies.

Methods: Both 'traditional' (physician referral, newspaper and radio advertisements, letterbox drops, posters/flyers, word-of-mouth) and 'modern' (patient recruitment services, social media, Google advertisements, websites, email) recruitment methods were used to enrol 100 patients (>18 years) diagnosed with moderate eczema for a randomised, double-blind, placebo-controlled trial investigating the efficacy and safety of a topical eczema treatment over 4 weeks. The relationships between recruitment method and patient age, sex, race, study completion and costs were analysed.

Results: The majority of patients recruited were young, with millennials and Gen Z comprising 77% of the study population. Both traditional and modern recruitment methods were equally successful in recruiting younger patients, with older patients predominately recruited by traditional methods. Eighty per cent more men were recruited by traditional compared to modern methods, whilst 67% more women than men were recruited by modern methods. Recruitment method neither appeared to be influenced by race, nor did it effect whether patients completed the study. Costs per enrolment were similar for both methods.

Conclusions: This study shows that despite the high proportion of young patients and the rising popularity of social media and increased internet use, a combination of both traditional and modern recruitment methods was required to successfully meet the trial enrolment target of 100 adult patients with moderate eczema.

Keywords: Eczema Area Severity Index; atopic dermatitis; hydration; randomised controlled trial; social media; transepidermal water loss.

Publication types

  • Comparative Study

MeSH terms

  • Administration, Topical
  • Adolescent
  • Adult
  • Advertising
  • Age Factors
  • Aged
  • Australia
  • Double-Blind Method
  • Eczema / drug therapy*
  • Female
  • Humans
  • Male
  • Mass Media
  • Middle Aged
  • Patient Selection*
  • Randomized Controlled Trials as Topic*
  • Social Media
  • Young Adult