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NCT00644839 · ClinicalTrials.gov registry record · Phase 1
Study Examing The Effect Of Omeprazole On Safety, Tolerability And How The Body Processes An Experimental Drug
A Phase 1 study, sponsored by Pfizer.
- Completed
- Registry status
- Phase 1
- Development phase
- 28
- Enrollment target
NCT00644839: Completed Phase 1 study, sponsored by Pfizer.
NCT00644839 is a Phase 1 study that has completed, run by Pfizer. The registered enrollment target is 28 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (53% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00644839, a Phase 1 study, has completed, sponsored by Pfizer.
- COMPLETED
- Registry status
- Phase 1
- Development phase
- 28 participants
- Enrollment target
Study Summary
Experiment in the test tube indicated that CP-945,598 becomes less soluble with increase of pH (less acidity). Changes in stomach acid levels may affect the solubility of CP-945,598, therefore, alters its availability in the blood. Omeprazole decreases acid levels in stomach. This study will compare the time course of drug concentrations in the body, safety, and tolerability of CP-945,598 given with and without omeprazole.
Interventions
- DRUG CP-945,598
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 28 participants |
| Start Date | 2008-04 |
| Est. Completion | 2008-07 |
| Phase | Phase 1 |
What the finished NCT00644839 record still lists
NCT00644839 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 28 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (53% lower).
The record links to 0 conditions, and to 1 intervention - of which CP-945,598 is the first listed.
NCT00644839 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00644839 about?
NCT00644839 is a clinical study titled "Study Examing The Effect Of Omeprazole On Safety, Tolerability And How The Body Processes An Experimental Drug". Experiment in the test tube indicated that CP-945,598 becomes less soluble with increase of pH (less acidity). Changes in stomach acid levels may affect the solubility of CP-945,598, therefore, alters its availability in the blood. Omeprazole decreases acid levels in stomach. This study will compare...
What is the current status of trial NCT00644839?
This trial is currently completed. It is a Phase 1 study. The enrollment target is 28 participants. The study started on 2008-04. Estimated completion is 2008-07.
What interventions are being tested in trial NCT00644839?
The interventions under investigation include: CP-945,598 (DRUG).
Who is sponsoring clinical trial NCT00644839?
This trial is sponsored by Pfizer, which has 1,845 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00644839's enrollment target sits among peer trials
28 1447th of 2000 higher than 538 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 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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