# Enhancing Source Credibility in Tobacco Regulatory Communications

> **NCT03339206** · NA · COMPLETED · sponsor: **UNC Lineberger Comprehensive Cancer Center** · enrollment: 845 (actual)

## Conditions studied

- Cigarette Smoking Behavior

## Interventions

- **BEHAVIORAL:** Constituent message with FDA and quitline
- **BEHAVIORAL:** Constituent message without FDA and quitline
- **BEHAVIORAL:** Littering message (Control)

## Key facts

- **NCT ID:** NCT03339206
- **Lead sponsor:** UNC Lineberger Comprehensive Cancer Center
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-10-10
- **Primary completion:** 2018-05-06
- **Final completion:** 2018-05-23
- **Target enrollment:** 845 (ACTUAL)
- **Last updated:** 2020-11-24

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03339206

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03339206, "Enhancing Source Credibility in Tobacco Regulatory Communications". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT03339206. Licensed CC0.

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