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NCT00992550 · ClinicalTrials.gov registry record · Phase 1
Comparison of Hookah and Cigarette Smoking
A Phase 1 study, sponsored by University of California, San Francisco.
- Completed
- Registry status
- Phase 1
- Development phase
- 13
- Enrollment target
NCT00992550: Completed Phase 1 study, sponsored by University of California, San Francisco.
NCT00992550 is a Phase 1 study that has completed, run by University of California, San Francisco. The registered enrollment target is 13 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (78% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00992550, a Phase 1 study, has completed, sponsored by University of California, San Francisco.
- COMPLETED
- Registry status
- Phase 1
- Development phase
- 13 participants
- Enrollment target
Study Summary
The aim of this study is to compare exposure to tobacco smoke toxins in individuals who smoke both cigarettes and Hookah pipes. Sixteen subjects will be hospitalized on the research ward for two visits of 4 days each. At one visit they will smoke their usual cigarettes in approximately normal frequency, and at the other visit they will smoke Hookah at least twice per day. The order of the visits will be randomized. On the fourth day of each visit (when nicotine, carbon monoxide (CO), and some carcinogen levels will be in a steady state condition), circadian blood and urine and expired air samples will be collected.
Interventions
- DRUG Cigarette
- DRUG Hookah
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 13 participants |
| Start Date | 2009-10 |
| Est. Completion | 2011-03 |
| Phase | Phase 1 |
What the finished NCT00992550 record still lists
NCT00992550 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 13 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (78% lower).
The record links to 0 conditions, and to 2 interventions - of which Cigarette is the first listed.
NCT00992550 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00992550 about?
NCT00992550 is a clinical study titled "Comparison of Hookah and Cigarette Smoking". The aim of this study is to compare exposure to tobacco smoke toxins in individuals who smoke both cigarettes and Hookah pipes. Sixteen subjects will be hospitalized on the research ward for two visits of 4 days each. At one visit they will smoke their usual cigarettes in approximately normal freque...
What is the current status of trial NCT00992550?
This trial is currently completed. It is a Phase 1 study. The enrollment target is 13 participants. The study started on 2009-10. Estimated completion is 2011-03.
What interventions are being tested in trial NCT00992550?
The interventions under investigation include: Cigarette (DRUG), Hookah (DRUG).
Who is sponsoring clinical trial NCT00992550?
This trial is sponsored by University of California, San Francisco, which has 1,713 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00992550's enrollment target sits among peer trials
13 1847th of 2000 higher than 149 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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