# Evaluating Selected Constituents in the Exhaled Breath Samples

> **NCT04143256** · NA · COMPLETED · sponsor: **Juul Labs, Inc.** · enrollment: 135 (actual)

## Conditions studied

- Electronic Cigarette Use
- Cigarette Use, Electronic
- Tobacco Use
- Tobacco Smoking

## Interventions

- **OTHER:** JUUL ENDS 5% Virginia Tobacco
- **OTHER:** JUUL 3% Virginia Tobacco ENDS
- **OTHER:** JUUL 5% Mint ENDS
- **OTHER:** JUUL 3% Mint ENDS
- **OTHER:** JUUL 5% Menthol ENDS
- **OTHER:** JUUL 3% Menthol ENDS
- **OTHER:** JUUL 5% Mango ENDS
- **OTHER:** JUUL 3% Mango ENDS
- **OTHER:** US Cigarette, Non-menthol - Marlboro Gold King Size
- **OTHER:** US Cigarette, Menthol - Newport King Size

## Key facts

- **NCT ID:** NCT04143256
- **Lead sponsor:** Juul Labs, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-10-03
- **Primary completion:** 2019-12-12
- **Final completion:** 2019-12-13
- **Target enrollment:** 135 (ACTUAL)
- **Last updated:** 2020-02-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04143256

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04143256, "Evaluating Selected Constituents in the Exhaled Breath Samples". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04143256. Licensed CC0.

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