Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT05586165 · ClinicalTrials.gov registry record · NA
Effects of Prompt to Bundle COVID-19 Booster and Flu Shot
A NA study, sponsored by University of California, Los Angeles.
- Completed
- Registry status
- NA
- Development phase
- 109,493
- Enrollment target
NCT05586165: Completed NA study, sponsored by University of California, Los Angeles.
NCT05586165 is a NA study that has completed, run by University of California, Los Angeles. The registered enrollment target is 109,493 participants, above the 1,402-participant average among 58,714 other NA trials with a reported enrollment target (7710% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT05586165, a NA study, has completed, sponsored by University of California, Los Angeles.
- COMPLETED
- Registry status
- NA
- Development phase
- 109,493 participants
- Enrollment target
Study Summary
This randomized controlled trial investigates whether text-based reminders can increase the bivalent COVID-19 booster uptake and whether text-based reminders that mention the opportunity to bundle the COVID-19 booster with the flu shot within the same appointment can increase take-up of both the COVID-19 booster and the flu vaccine.
Primary Outcome
Whether people receive the bivalent booster at either UCLA Health or CVS Pharmacy
Interventions
- BEHAVIORAL Reminder to boost protection against COVID-19
- BEHAVIORAL Flu Tag Along
- BEHAVIORAL COVID-19 Booster & Flu Bundle
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 109,493 participants |
| Start Date | 2022-10-18 |
| Est. Completion | 2023-12-31 |
| Phase | NA |
What the finished NCT05586165 record still lists
NCT05586165 is an interventional study that assigns participants to a tested intervention. Its 109,493 participants enrollment target places it among the larger protocols in the corpus, above the 1,402-participant average among 58,714 other NA trials with a reported enrollment target (7710% higher).
The record links to 0 conditions, and to 3 interventions - of which Reminder to boost protection against COVID-19 is the first listed.
NCT05586165 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT05586165 about?
NCT05586165 is a clinical study titled "Effects of Prompt to Bundle COVID-19 Booster and Flu Shot". This randomized controlled trial investigates whether text-based reminders can increase the bivalent COVID-19 booster uptake and whether text-based reminders that mention the opportunity to bundle the COVID-19 booster with the flu shot within the same appointment can increase take-up of both the COV...
What is the current status of trial NCT05586165?
This trial is currently completed. It is a NA study. The enrollment target is 109,493 participants. The study started on 2022-10-18. Estimated completion is 2023-12-31.
What interventions are being tested in trial NCT05586165?
The interventions under investigation include: Reminder to boost protection against COVID-19 (BEHAVIORAL), Flu Tag Along (BEHAVIORAL), COVID-19 Booster & Flu Bundle (BEHAVIORAL).
Who is sponsoring clinical trial NCT05586165?
This trial is sponsored by University of California, Los Angeles, which has 897 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT05586165's enrollment target sits among peer trials
109,493 2nd of 2000 the highest of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT05804188 · 105,000 participants
CRICKET: Critical Events in Anaesthetised Kids Undergoing Tracheal Intubation
- NCT02917460 · 102,000 participants · NA
Rady Children's Institute Genomic Biorepository
- NCT05741112 · 100,500 participants · NA
The Long COVID-19 Wearable Device Study
- NCT02620852 · 100,000 participants · NA
Women Informed to Screen Depending on Measures of Risk (Wisdom Study)
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI