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NCT03599557 · ClinicalTrials.gov registry record · NA
The STOP-HPV Trial 1: Communication Intervention
A NA study, sponsored by University of California, Los Angeles.
- Completed
- Registry status
- NA
- Development phase
- 48
- Enrollment target
NCT03599557: Completed NA study, sponsored by University of California, Los Angeles.
NCT03599557 is a NA study that has completed, run by University of California, Los Angeles. The registered enrollment target is 48 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03599557, a NA study, has completed, sponsored by University of California, Los Angeles.
- COMPLETED
- Registry status
- NA
- Development phase
- 48 participants
- Enrollment target
Study Summary
Most adolescents who receive human papillomavirus (HPV) vaccine are vaccinated in pediatric practices, yet missed opportunities (MOs) for HPV vaccination occur often and lead to low HPV vaccination rates. This cluster randomized clinical trial (RCT) will test the effectiveness (and cost-effectiveness) of training providers on HPV vaccine communication to reduce MOs and increase HPV vaccination rates.
Primary Outcome
The difference in the missed opportunity rate for HPV vaccination between the baseline period (12 months long) and the feedback period (6 months long) among all the clinicians in the participating practices, regardless of whether they received the training intervention. A missed opportunity is a visit-based measure, with the denominator representing all the visits where an HPV vaccine is due at the time of the visit and the numerator representing the number of visits where an HPV vaccine was not
Interventions
- BEHAVIORAL STOP-HPV communication intervention
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 48 participants |
| Start Date | 2018-08-07 |
| Est. Completion | 2019-10-21 |
| Phase | NA |
What the finished NCT03599557 record still lists
NCT03599557 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 48 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower).
The record links to 0 conditions, and to 1 intervention - of which STOP-HPV communication intervention is the first listed.
NCT03599557 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03599557 about?
NCT03599557 is a clinical study titled "The STOP-HPV Trial 1: Communication Intervention". Most adolescents who receive human papillomavirus (HPV) vaccine are vaccinated in pediatric practices, yet missed opportunities (MOs) for HPV vaccination occur often and lead to low HPV vaccination rates. This cluster randomized clinical trial (RCT) will test the effectiveness (and cost-effectivenes...
What is the current status of trial NCT03599557?
This trial is currently completed. It is a NA study. The enrollment target is 48 participants. The study started on 2018-08-07. Estimated completion is 2019-10-21.
What interventions are being tested in trial NCT03599557?
The interventions under investigation include: STOP-HPV communication intervention (BEHAVIORAL).
Who is sponsoring clinical trial NCT03599557?
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 NCT03599557's enrollment target sits among peer trials
48 1381st of 2000 higher than 601 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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