Nornicotine in Smokeless Tobacco as a Precursor for Carcinogen Exposure
Public ClinicalTrials.gov record NCT03998735. 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
- NCT03998735
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 1
- Lead sponsor
- Masonic Cancer Center, University of Minnesota
- Other
- Enrollment
- 55 participants
Conditions and interventions
Conditions
Interventions
- Herbal Snuff (Smokeless Tobacco) Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 65 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
- Oct 18, 2021
- Primary completion
- Jul 31, 2025
- Completion
- Jul 31, 2026
- Last update posted
- Nov 25, 2025
2021 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Masonic Cancer Center | Minneapolis | Minnesota | 55411 | — |
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 NCT03998735, 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 Nov 25, 2025 · Synced Jun 26, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03998735 live on ClinicalTrials.gov.