# Nornicotine in Smokeless Tobacco as a Precursor for Carcinogen Exposure

> **NCT03998735** · PHASE1 · ACTIVE_NOT_RECRUITING · sponsor: **Masonic Cancer Center, University of Minnesota** · enrollment: 55 (estimated)

## Conditions studied

- Smokeless Tobacco

## Interventions

- **DRUG:** Herbal Snuff (Smokeless Tobacco)

## Key facts

- **NCT ID:** NCT03998735
- **Lead sponsor:** Masonic Cancer Center, University of Minnesota
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2021-10-19
- **Primary completion:** 2025-08-01
- **Final completion:** 2026-08
- **Target enrollment:** 55 (ESTIMATED)
- **Last updated:** 2025-11-26

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03998735

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03998735, "Nornicotine in Smokeless Tobacco as a Precursor for Carcinogen Exposure". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT03998735. Licensed CC0.

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