# Text-based Reminders to Promote COVID-19 Vaccinations

> **NCT04801524** · NA · COMPLETED · sponsor: **University of California, Los Angeles** · enrollment: 250000 (actual)

## Conditions studied

- Covid19, Vaccines

## Interventions

- **BEHAVIORAL:** Self-benefit
- **BEHAVIORAL:** Prosocial-benefit
- **BEHAVIORAL:** Early access
- **BEHAVIORAL:** Fresh start

## Key facts

- **NCT ID:** NCT04801524
- **Lead sponsor:** University of California, Los Angeles
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-02-07
- **Primary completion:** 2021-12-31
- **Final completion:** 2022-01-01
- **Target enrollment:** 250000 (ACTUAL)
- **Last updated:** 2022-09-13

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04801524

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04801524, "Text-based Reminders to Promote COVID-19 Vaccinations". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04801524. Licensed CC0.

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