# COMET Study 1: Filter Ventilated Cigarette Substitution in the ETM

> **NCT03306173** · NA · COMPLETED · sponsor: **Virginia Polytechnic Institute and State University** · enrollment: 142 (actual)

## Conditions studied

- Substance-Related Disorders

## Interventions

- **OTHER:** Commercially available cigarette

## Key facts

- **NCT ID:** NCT03306173
- **Lead sponsor:** Virginia Polytechnic Institute and State University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-08-08
- **Primary completion:** 2020-03-10
- **Final completion:** 2020-03-10
- **Target enrollment:** 142 (ACTUAL)
- **Last updated:** 2025-10-07

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03306173

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03306173, "COMET Study 1: Filter Ventilated Cigarette Substitution in the ETM". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT03306173. Licensed CC0.

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