Biosynthesis of PGD2 in Vivo
Summary
The investigator would like to see if aspirin could block niacin-induced flushing by analyzing blood and urine after taking aspirin. Phase I: Subjects were assigned to either placebo or aspirin groups. They were given 5 days of 81 mg aspirin or placebo. On day 5, they were given a single dose of niacin (600 mg) administered 30 minutes after the last dose of aspirin or placebo. The same subjects came back for cross-over study and were assigned to a different group. There was a 2-week washout period between each treatment. Urine was collected sequentially for analysis Phase II: The same study subjects come back for an open label one week study. They were given 5 days of taking 81 mg Aspirin, taken once daily, followed by a single dose of 600 mg Niacin on day 6. Urine was collected sequentially for analysis
Timeline
- Start
- 2007-07
- Primary completion
- 2012-01
- Completion
- 2012-01
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Comparator | Aspirin | Small molecule | 81 mg | — |
| Comparator | Niacin | Small molecule | 600 mg | — |