# Metabolism of NNK in Japanese Americans

> **NCT04228952** · — · COMPLETED · sponsor: **Masonic Cancer Center, University of Minnesota** · enrollment: 16 (actual)

## Conditions studied

- Smoking

## Interventions

- **COMBINATION_PRODUCT:** Modified Natural American Spirit-Tan or Green cigarettes injected with labeled NNK

## Key facts

- **NCT ID:** NCT04228952
- **Lead sponsor:** Masonic Cancer Center, University of Minnesota
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2020-09-01
- **Primary completion:** 2021-10-15
- **Final completion:** 2025-04-14
- **Target enrollment:** 16 (ACTUAL)
- **Last updated:** 2025-08-01

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04228952

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04228952, "Metabolism of NNK in Japanese Americans". Retrieved via AI Analytics 2026-07-19 from https://api.ai-analytics.org/clinical/NCT04228952. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*