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NCT03666026 · ClinicalTrials.gov registry record · NA
Patient Portal - Flu Reminder Recall
A NA study, sponsored by University of California, Los Angeles.
- Completed
- Registry status
- NA
- Development phase
- 164,205
- Enrollment target
NCT03666026: Completed NA study, sponsored by University of California, Los Angeles.
NCT03666026 is a NA study that has completed, run by University of California, Los Angeles. The registered enrollment target is 164,205 participants, above the 1,401-participant average among 58,714 other NA trials with a reported enrollment target (11621% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03666026, a NA study, has completed, sponsored by University of California, Los Angeles.
- COMPLETED
- Registry status
- NA
- Development phase
- 164,205 participants
- Enrollment target
Study Summary
This trial is taking place in Los Angeles, CA at clinics within the UCLA Health System. Despite the Advisory Committee on Immunization Practices (ACIP) recommendation in 2010 that all people above 6 months of age should receive an annual flu vaccine, vaccination rates remain low: at 6m-4.9 yrs. (70%), 5-17.9 yrs. (56%), 18-64.9 yrs. (38%), and \>65 yrs. (63%). The investigators will assess the effectiveness and cost-effectiveness of 1, 2, 3 MyChart R/R messages as compared to the standard of care control (no messages).
Primary Outcome
Number of participants in each arm who received influenza vaccination
Interventions
- BEHAVIORAL 1 MyChart R/R
- BEHAVIORAL 2 MyChart R/R
- BEHAVIORAL 3 MyChart R/R
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 164,205 participants |
| Start Date | 2018-10-02 |
| Est. Completion | 2019-04-02 |
| Phase | NA |
What the finished NCT03666026 record still lists
NCT03666026 is an interventional study that assigns participants to a tested intervention. Its 164,205 participants enrollment target places it among the larger protocols in the corpus, above the 1,401-participant average among 58,714 other NA trials with a reported enrollment target (11621% higher).
The record links to 0 conditions, and to 3 interventions - of which 1 MyChart R/R is the first listed.
NCT03666026 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03666026 about?
NCT03666026 is a clinical study titled "Patient Portal - Flu Reminder Recall". This trial is taking place in Los Angeles, CA at clinics within the UCLA Health System. Despite the Advisory Committee on Immunization Practices (ACIP) recommendation in 2010 that all people above 6 months of age should receive an annual flu vaccine, vaccination rates remain low: at 6m-4.9 yrs. (70...
What is the current status of trial NCT03666026?
This trial is currently completed. It is a NA study. The enrollment target is 164,205 participants. The study started on 2018-10-02. Estimated completion is 2019-04-02.
What interventions are being tested in trial NCT03666026?
The interventions under investigation include: 1 MyChart R/R (BEHAVIORAL), 2 MyChart R/R (BEHAVIORAL), 3 MyChart R/R (BEHAVIORAL).
Who is sponsoring clinical trial NCT03666026?
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 NCT03666026's enrollment target sits among peer trials
164,205 1st of 2000 higher than 2,000 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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