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NCT00239694 · ClinicalTrials.gov registry record · Phase 4
PPV: Pneumococcal Polysaccharide Vaccine in Older Adults
A Phase 4 study, sponsored by National Institute on Aging (NIA).
- Completed
- Registry status
- Phase 4
- Development phase
- 100
- Enrollment target
NCT00239694: Completed Phase 4 study, sponsored by National Institute on Aging (NIA).
NCT00239694 is a Phase 4 study that has completed, run by National Institute on Aging (NIA). The registered enrollment target is 100 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (81% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00239694, a Phase 4 study, has completed, sponsored by National Institute on Aging (NIA).
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 100 participants
- Enrollment target
Study Summary
The purpose of this study is to measure how long the improvement in the immune system lasts in older people after they have been vaccinated, and to examine the immune response in older people who get vaccinated a second time.
Interventions
- BIOLOGICAL Pneumococcal Vaccine
- BIOLOGICAL Meningococcal Vaccine
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 100 participants |
| Start Date | 2001-04 |
| Est. Completion | 2012-08 |
| Phase | Phase 4 |
What the finished NCT00239694 record still lists
NCT00239694 is an interventional study that assigns participants to a tested intervention. The registered 100 participants enrollment target is mid-sized for trials with a published cap, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (81% lower).
The record links to 0 conditions, and to 2 interventions - of which Pneumococcal Vaccine is the first listed.
NCT00239694 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00239694 about?
NCT00239694 is a clinical study titled "PPV: Pneumococcal Polysaccharide Vaccine in Older Adults". The purpose of this study is to measure how long the improvement in the immune system lasts in older people after they have been vaccinated, and to examine the immune response in older people who get vaccinated a second time.
What is the current status of trial NCT00239694?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 100 participants. The study started on 2001-04. Estimated completion is 2012-08.
What interventions are being tested in trial NCT00239694?
The interventions under investigation include: Pneumococcal Vaccine (BIOLOGICAL), Meningococcal Vaccine (BIOLOGICAL).
Who is sponsoring clinical trial NCT00239694?
This trial is sponsored by National Institute on Aging (NIA), which has 131 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00239694's enrollment target sits among peer trials
100 770th of 2000 higher than 1,148 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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