Impact of E-cigarette Device Warnings

Completed · Not applicable

Conditions studied: Vaping Behaviors

In brief

The purpose of this randomized clinical trial is to determine whether e-cigarette warnings increase intentions to quit vaping without the unintended consequence of pushing users toward smoking. This trial addresses these issues by evaluating the impact of e-cigarette warnings by randomly assigning vapers to have their devices and refills labeled with control messages, text warnings, or pictorial warnings. Participants will be US adult (ages 21+) vapers. The trial expects \~1,200 participants to complete Visits 1, 3, and 5.

Key facts

Study ID

NCT05714982

Run by

UNC Lineberger Comprehensive Cancer Center

People needed

1369

Starts

2023-02-23

Expected to finish

2024-07-23

Last updated by the study team

2025-09-12

Who can join

Age: 21 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Be 21 years or older
• Currently vape every day or some days
• Use an e-cigarette that contains nicotine
• Be able to attend 2 in-person appointments
• Be able to bring in e-cigarette device and 2 weeks' worth or refills to 2 in-person appointments
• Be willing to let us apply a sticker to the device and refill materials
• Be willing to use only the labeled e-cigarette during the study
• Be able to complete 3 surveys online at home
• Be able to read and speak English
• Be able to complete a survey on a computer without help

You may not qualify if…

• Pregnant people
• If e-cigarette device cannot be labeled
• Vapers concurrently enrolled in any research studies about vaping or using other tobacco products
• Vapers who live in the same household as someone who has enrolled in the study

Where it is running

• Ewald & Wasserman Research Consultants, LLC — San Francisco, California, United States

Full record on ClinicalTrials.gov

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