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NCT03734237 · ClinicalTrials.gov registry record · Phase 4
A Pragmatic Assessment of Influenza Vaccine Effectiveness in the DoD
A Phase 4 study, sponsored by Henry M. Jackson Foundation for the Advancement of Military Medicine.
- Active
- Registry status
- Phase 4
- Development phase
- 15,448
- Enrollment target
NCT03734237: Active Phase 4 study, sponsored by Henry M. Jackson Foundation for the Advancement of Military Medicine.
NCT03734237 is a Phase 4 study that is active but no longer recruiting, run by Henry M. Jackson Foundation for the Advancement of Military Medicine. The registered enrollment target is 15,448 participants, above the 517-participant average among 9,235 other Phase 4 trials with a reported enrollment target (2888% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03734237, a Phase 4 study, is active but no longer recruiting, sponsored by Henry M. Jackson Foundation for the Advancement of Military Medicine.
- ACTIVE NOT RECRUITING
- Registry status
- Phase 4
- Development phase
- 15,448 participants
- Enrollment target
Study Summary
A total of 18,000 eligible subjects (or 6,000 subject distributed evenly between the 3 study arms) will be enrolled. Eligible subjects will be randomized in 1:1:1 (cell-culture-based vaccine, the recombinant vaccine, or the egg-based vaccine) over four influenza seasons (2018-2019, 2019-2020, 2020-2021, and 2021-2022).
Primary Outcome
Laboratory-confirmed influenza as ascertained by a sensitive and specific assay.
Interventions
- BIOLOGICAL Egg based influenza vaccines
- BIOLOGICAL Recombinant influenza vaccines
- BIOLOGICAL Cell-culture based influenza vaccines
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 15,448 participants |
| Start Date | 2018-11-06 |
| Est. Completion | 2026-06-30 |
| Phase | Phase 4 |
What the registry record for NCT03734237 still lists
NCT03734237 is an interventional study that assigns participants to a tested intervention. Its 15,448 participants enrollment target places it among the larger protocols in the corpus, above the 517-participant average among 9,235 other Phase 4 trials with a reported enrollment target (2888% higher).
The record links to 0 conditions, and to 3 interventions - of which Egg based influenza vaccines is the first listed.
NCT03734237 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03734237 about?
NCT03734237 is a clinical study titled "A Pragmatic Assessment of Influenza Vaccine Effectiveness in the DoD". A total of 18,000 eligible subjects (or 6,000 subject distributed evenly between the 3 study arms) will be enrolled. Eligible subjects will be randomized in 1:1:1 (cell-culture-based vaccine, the recombinant vaccine, or the egg-based vaccine) over four influenza seasons (2018-2019, 2019-2020, 2020-2...
What is the current status of trial NCT03734237?
This trial is currently active not recruiting. It is a Phase 4 study. The enrollment target is 15,448 participants. The study started on 2018-11-06. Estimated completion is 2026-06-30.
What interventions are being tested in trial NCT03734237?
The interventions under investigation include: Egg based influenza vaccines (BIOLOGICAL), Recombinant influenza vaccines (BIOLOGICAL), Cell-culture based influenza vaccines (BIOLOGICAL).
Who is sponsoring clinical trial NCT03734237?
This trial is sponsored by Henry M. Jackson Foundation for the Advancement of Military Medicine, which has 60 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03734237's enrollment target sits among peer trials
15,448 7th of 2000 higher than 1,994 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 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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