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NCT03294473 · ClinicalTrials.gov registry record · NA
Centralized Reminder Recall - Flu RCT2
A NA study, sponsored by University of California, Los Angeles.
- Completed
- Registry status
- NA
- Development phase
- 70,190
- Enrollment target
NCT03294473: Completed NA study, sponsored by University of California, Los Angeles.
NCT03294473 is a NA study that has completed, run by University of California, Los Angeles. The registered enrollment target is 70,190 participants, above the 1,402-participant average among 58,714 other NA trials with a reported enrollment target (4906% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03294473, a NA study, has completed, sponsored by University of California, Los Angeles.
- COMPLETED
- Registry status
- NA
- Development phase
- 70,190 participants
- Enrollment target
Study Summary
This study is related to a previous study, Clinicaltrials.gov ID: NCT02924467. There are some modifications in relation to the intervention arms as well as the use of a different cohort, thereby justifying the second submission to Clinicaltrials.gov. This trial is taking place in New York State, through partnership with the New York State Health Department (excluding New York City), and Colorado. Each state will have it's own Clinicaltrial.gov submission -- this was decided as some of the intervention components are different enough that separate registrations were warranted. Despite U.S. guidelines for influenza vaccination of all children starting at 6 months, only about half of children are vaccinated annually leading to substantial influenza disease in children and spread of disease to adults. A major barrier is that families are not reminded about the need for their children to receive influenza vaccination. The investigators will evaluate the impact of patient reminder/recall (R/R) performed by state immunization information systems to improve influenza vaccination rates by using 4 clinical trials (2 per state) in two different states. The investigators will assess effectiveness and cost-effectiveness of 1) autodialer R/R 2) text messages R/R 3) mailed postcard R/R as compared to 4) standard of care control (no R/R).
Primary Outcome
Based on our prior studies, we plan to send up to 3 autodialer, text messages or postcards (based on randomization) reminders, roughly every 5-6 weeks. This will begin in October 2017 and end in December 2017. Outcomes are assessed at 6 months using IIS data.
Interventions
- BEHAVIORAL R/R - Autodialers
- BEHAVIORAL R/R - Texting
- BEHAVIORAL R/R - mailed postcard
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 70,190 participants |
| Start Date | 2017-10-18 |
| Est. Completion | 2018-05-04 |
| Phase | NA |
What the finished NCT03294473 record still lists
NCT03294473 is an interventional study that assigns participants to a tested intervention. Its 70,190 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 (4906% higher).
The record links to 0 conditions, and to 3 interventions - of which R/R - Autodialers is the first listed.
NCT03294473 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03294473 about?
NCT03294473 is a clinical study titled "Centralized Reminder Recall - Flu RCT2". This study is related to a previous study, Clinicaltrials.gov ID: NCT02924467. There are some modifications in relation to the intervention arms as well as the use of a different cohort, thereby justifying the second submission to Clinicaltrials.gov. This trial is taking place in New York State, thr...
What is the current status of trial NCT03294473?
This trial is currently completed. It is a NA study. The enrollment target is 70,190 participants. The study started on 2017-10-18. Estimated completion is 2018-05-04.
What interventions are being tested in trial NCT03294473?
The interventions under investigation include: R/R - Autodialers (BEHAVIORAL), R/R - Texting (BEHAVIORAL), R/R - mailed postcard (BEHAVIORAL).
Who is sponsoring clinical trial NCT03294473?
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 NCT03294473's enrollment target sits among peer trials
70,190 4th of 2000 higher than 1,997 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
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