DRKS00023650.

Study name	An entertainment‐education approach to improve vaccine confidence during the COVID‐19 pandemic: an online randomised controlled experiment with 24,000 participants
Starting date	April 2021
Contact information	Stanford University, Ms.  Dr.  Maya  Adam, 291 Campus Drive Li Ka Shing Building, 94305‐510  Stanford, USA
Methods	Study design: randomised controlled experiment Type of publication: trial registration Setting: online Country: China and the USA Language: English
Intervention	Intervention arm A: receives the storytelling‐informational approach video followed by the survey Intervention arm B: receives the storytelling‐analogy approach video followed by the survey Intervention arm C: receives the storytelling‐emotion‐focused approach video followed by the survey Control arm: receives the survey first, followed by a collage of the three videos.
Population	Population: 12,000 online participants in each of two countries, China and the USA. Inclusion criteria: 18 to 65 years; registered on the ProA or Kurundata platform.
Outcomes	Primary outcome Establish the effectiveness of the video in reducing COVID‐19 vaccine hesitancy. Secondary outcomes Establish the effectiveness of each of the videos in increasing behavioural intent towards COVID‐19 vaccination. Establish the effectiveness of each of the videos in increasing participants’ level of hope.
Estimated completion date and number of participants	NR
Notes	COI: NR Sponsor: Heidelberg Institute of Global Health, University of Heidelberg (Institutional funding)