NCT04924803.

Study name	Community developed technology‐based messaging to increase COVID‐19 vaccine uptake among people who inject drugs
Starting date	14 June 2021
Contact information	Ian D Aronson, ia14@nyu.edu
Methods	Study design: randomised controlled trial Type of publication: trial registration Setting: via phone messages Country: USA Language: English and Spanish
Intervention	weekly text messages and intervention videos No video condition: weekly text messages designs to increase vaccination Video text condition: weekly text messages along with links to intervention videos
Population	Population: people who inject drugs Inclusion criteria: 18 and older, drug use, English or Spanish speaking Exclusion criteria: NR
Outcomes	Vaccine uptake (at baseline, at follow‐up) Vaccination series completion
Estimated completion date and number of participants	December 2023, 500 planned
Notes	COI: NR Funding: New York University