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NCT04565353 · ClinicalTrials.gov registry record · NA
Testing Multiple Behavioral Science Strategies to Increase Flu-Shot Rates
A NA study, sponsored by University of Pennsylvania.
- Completed
- Registry status
- NA
- Development phase
- 74,811
- Enrollment target
NCT04565353: Completed NA study, sponsored by University of Pennsylvania.
NCT04565353 is a NA study that has completed, run by University of Pennsylvania. The registered enrollment target is 74,811 participants, above the 1,402-participant average among 58,714 other NA trials with a reported enrollment target (5236% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04565353, a NA study, has completed, sponsored by University of Pennsylvania.
- COMPLETED
- Registry status
- NA
- Development phase
- 74,811 participants
- Enrollment target
Study Summary
This research aims to identify which behavioral science strategies are most effective at increasing flu vaccination rates overall and based on patients' individual characteristics. Past behavioral science interventions have shown promise in increasing flu vaccinations. For example, successful interventions have encouraged people to make concrete plans for when they will get a flu vaccination (Milkman et al. 2011), sent automated calls or text messages reminding patients to get a flu vaccination (Cutrona et al. 2018; Regan et al. 2017), or provided financial incentives for getting vaccinated (Nowalk et al. 2010). Although these results are promising, these studies have been conducted in isolation on different populations, which makes it difficult to compare their interventions' effectiveness or to have enough power to reliably detect differing responses to interventions based on individual characteristics. This research will simultaneously test 19 different SMS interventions to increase flu vaccinations in a "mega-study" and apply machine learning to identify which interventions work best for whom. The interventions are designed by behavioral science experts from the Behavior Change for Good Initiative (BCFG), Penn Medicine Nudge Unit (PMNU), and Geisinger Behavioral Insights Team (BIT). We expect to include at least 80,000 participants. The specific aims of this research are to identify (1) which behavioral science strategies effectively increase flu vaccination rates overall, and (2) which strategies are most effective for different subgroups (e.g., based on age, gender, race).
Primary Outcome
Our field experiment will be conducted with Penn Medicine and Geisinger Health patients via SMS messages sent prior to their first primary care appointment during the study period, hereafter referred to as the "target appointment." The key dependent variable is whether participants receive a flu shot at or before their target appointment (as recorded in their electronic health records). If participants cancel or do not show up for their target appointment after they have been randomized to a tr
Interventions
- BEHAVIORAL Flu shot text messages
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 74,811 participants |
| Start Date | 2020-09-20 |
| Est. Completion | 2021-03-31 |
| Phase | NA |
What the finished NCT04565353 record still lists
NCT04565353 is an interventional study that assigns participants to a tested intervention. Its 74,811 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 (5236% higher).
The record links to 0 conditions, and to 1 intervention - of which Flu shot text messages is the first listed.
NCT04565353 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04565353 about?
NCT04565353 is a clinical study titled "Testing Multiple Behavioral Science Strategies to Increase Flu-Shot Rates". This research aims to identify which behavioral science strategies are most effective at increasing flu vaccination rates overall and based on patients' individual characteristics. Past behavioral science interventions have shown promise in increasing flu vaccinations. For example, successful interv...
What is the current status of trial NCT04565353?
This trial is currently completed. It is a NA study. The enrollment target is 74,811 participants. The study started on 2020-09-20. Estimated completion is 2021-03-31.
What interventions are being tested in trial NCT04565353?
The interventions under investigation include: Flu shot text messages (BEHAVIORAL).
Who is sponsoring clinical trial NCT04565353?
This trial is sponsored by University of Pennsylvania, which has 1,423 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04565353's enrollment target sits among peer trials
74,811 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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