Impact of E-cigarette Device Warnings
Public ClinicalTrials.gov record NCT05714982. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Randomized Clinical Trial Evaluating the Impact of E-cigarette Device Warnings
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
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.
Study identification
- NCT ID
- NCT05714982
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 1,369 participants
Conditions and interventions
Conditions
Interventions
- Label with text health warning Other
- Label with pictorial health warning Other
- Label with neutral statements about vaping Other
Other
Eligibility (public fields only)
- Age range
- 21 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 22, 2023
- Primary completion
- Jul 22, 2024
- Completion
- Jul 22, 2024
- Last update posted
- Sep 11, 2025
2023 – 2024
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Ewald & Wasserman Research Consultants, LLC | San Francisco | California | 94104 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05714982, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 11, 2025 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05714982 live on ClinicalTrials.gov.