Reactions to Warnings on Hookah Ads

NCT03723616 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 2588

Last updated 2025-12-18

Study results available
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Summary

The purpose of this study is to help us better understand what kinds of waterpipe tobacco advertisements appeal to young adults as well as to help evaluate and create health warnings that can be placed on waterpipe tobacco advertisements to inform young adults of the risks associated with smoking hookah tobacco.

Conditions

  • Reactions to Warnings
  • Hookah Smoking

Interventions

BEHAVIORAL

Ads Only

Participants will view 2 ads without replacement.

BEHAVIORAL

Ads with text-only health warning labels (HWLs)

Participants will view HWLs in one of four domains: long- and short-term health events, toxicants, and addiction; participants viewed two HWLs within each domain - there were two HWLs per domain. The text HWLs were placed randomly on two ads out of the possible four ad themes without replacement. Thus, participants viewed two HWLs within the same domain, with each warning being placed on a different ad.

BEHAVIORAL

Ads with text + graphic health warning labels (HWLs)

Participants will view HWLs in one of four domains: long- and short-term health events, toxicants, and addiction; participants viewed two HWLs within each domain - there were two HWLs per domain. The text + graphic HWLs were placed randomly on two ads out of the possible four ad themes without replacement. Thus, participants viewed two HWLs within the same domain, with each warning being placed on a different ad.

Sponsors & Collaborators

Principal Investigators

  • Isaac Lipkus, PhD · Duke University

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
34 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2018-10-05
Primary Completion
2021-03-26
Completion
2021-03-26

Countries

  • United States

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03723616 on ClinicalTrials.gov