Hookah Smoking, Carbon Monoxide, and Coronary Endothelial Function
Public ClinicalTrials.gov record NCT03166787. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Study identification
- NCT ID
- NCT03166787
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 1
- Lead sponsor
- Cedars-Sinai Medical Center
- Other
- Enrollment
- 60 participants
Conditions and interventions
Conditions
Interventions
- Charcoal hookah Other
- E-coal hookah Other
- Cigarette Other
- Carbon Monoxide inhalation Drug
- Room Air inhalation Other
- vitamin C Drug
- tadalafil Drug
Other · Drug
Eligibility (public fields only)
- Age range
- 21 Years to 49 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 14, 2017
- Primary completion
- Apr 14, 2020
- Completion
- Oct 14, 2020
- Last update posted
- Apr 8, 2021
2017 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Cedars-Sinai Medical Center | Los Angeles | California | 90048 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03166787, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 8, 2021 · Synced Jul 22, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03166787 live on ClinicalTrials.gov.