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NCT01557621 · ClinicalTrials.gov registry record · NA
Comparative Effectiveness Trial of Two Reminder/Recall Methods to Increase Immunization Rates in Young Children
A NA study, sponsored by University of Colorado, Denver.
- Completed
- Registry status
- NA
- Development phase
- 68,000
- Enrollment target
NCT01557621: Completed NA study, sponsored by University of Colorado, Denver.
NCT01557621 is a NA study that has completed, run by University of Colorado, Denver. The registered enrollment target is 68,000 participants, above the 1,402-participant average among 58,714 other NA trials with a reported enrollment target (4750% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01557621, a NA study, has completed, sponsored by University of Colorado, Denver.
- COMPLETED
- Registry status
- NA
- Development phase
- 68,000 participants
- Enrollment target
Study Summary
The purpose of this study is to determine if a collaborative centralized population-based reminder/recall intervention is more effective than a traditional practice-based reminder/recall intervention at increasing immunizations among young children.
Primary Outcome
The definition of up-to-date is based on the national Advisory Committee on Immunization Practices(ACIP)recommended series of antigens (4:3:1:3:3:1:3) to be received by the age of 19-20 months. Three different cohorts of children aged 19-35 months will be assessed across the 3 year study period. Outcomes from each cohort will be assessed 6 months post-intervention.
Interventions
- BEHAVIORAL Collaborative Pop-Based R/R: Phone/Mail Group
- BEHAVIORAL Collaborative Pop-Based R/R: Mail-Only Group
- BEHAVIORAL Practice-based Recall
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 68,000 participants |
| Start Date | 2012-09 |
| Est. Completion | 2015-12 |
| Phase | NA |
What the finished NCT01557621 record still lists
NCT01557621 is an interventional study that assigns participants to a tested intervention. Its 68,000 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 (4750% higher).
The record links to 0 conditions, and to 3 interventions - of which Collaborative Pop-Based R/R: Phone/Mail Group is the first listed.
NCT01557621 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT01557621 about?
NCT01557621 is a clinical study titled "Comparative Effectiveness Trial of Two Reminder/Recall Methods to Increase Immunization Rates in Young Children". The purpose of this study is to determine if a collaborative centralized population-based reminder/recall intervention is more effective than a traditional practice-based reminder/recall intervention at increasing immunizations among young children.
What is the current status of trial NCT01557621?
This trial is currently completed. It is a NA study. The enrollment target is 68,000 participants. The study started on 2012-09. Estimated completion is 2015-12.
What interventions are being tested in trial NCT01557621?
The interventions under investigation include: Collaborative Pop-Based R/R: Phone/Mail Group (BEHAVIORAL), Collaborative Pop-Based R/R: Mail-Only Group (BEHAVIORAL), Practice-based Recall (BEHAVIORAL).
Who is sponsoring clinical trial NCT01557621?
This trial is sponsored by University of Colorado, Denver, which has 1,283 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT01557621's enrollment target sits among peer trials
68,000 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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