Using social media to recruit study participants for a randomized trial for hypertension

Eur Heart J Digit Health. 2020 Nov 30;1(1):71-74. doi: 10.1093/ehjdh/ztaa010. eCollection 2020 Nov.

Abstract

Aims: The present study aimed to evaluate the potential of social media as an approach to recruit hypertensive subjects.

Methods and results: In addition to conventional trial recruitment, Facebook ads were run. Over a 115-day recruitment period, Facebook reached 5.3 million people in 168 separate campaigns run in the proximity of 19 sites in the USA and 14 sites in Europe. A total of 182 839 participants (3.4%) clicked on the ad; of those 10 483 subjects (5.7%) completed a dedicated questionnaire. This resulted in 3632 potential candidates. A total of 285 potential candidates were recruited by various recruitment strategies in the specified time period, of which 184/285 (64.6%) came from Facebook. When comparing Facebook with a 7-day radio spot in the same time period, 48 radio spots were launched; resulting in nine inquiries with eventually five potential candidates and two consents.

Conclusion: Targeted social media was a successful and efficient strategy to recruit hypertensive subjects.

Keywords: Facebook; Hypertension; Recruitment; Social media; Trials.