Effects of New Pictorial Cigarette Pack Warnings on Vietnamese Smokers' Perceptions and Smoking Behaviors

Summary

This proposed study will assess the effects of different scenarios of PHW policies on smokers' reactions to warnings, attitudes and beliefs, behavioral intentions, and quitting behaviors, with specific aims: 1) to assess the impact of new PHWs covering 50% of cigarette packs, 2) to assess the impact of new larger PHWs covering 85% of cigarette packs, 3) to assess the impact of incorporating quitline information on cigarette packs, and 4) to assess the impact of plain packaging. These aims will be achieved by conducting a five-arm RCT among 1000 adult smokers (n=200 per arm). It includes four intervention groups: 1) branded pack with a new set of 6 PHWs covering 50% of cigarette packs without quitline information, 2) branded pack with a new set of 6 PHWs covering 85% of cigarette packs without quitline information, 3) branded pack with a new set of 6 PHWs covering 85% of cigarette packs with quitline information, and 4) plain pack with a new set of 6 PHWs covering 85% of cigarette packs with quitline information. A control group will use branded packs with the current set of 6 PHWs, covering 50% of cigarette packs without quitline information.

Given that the pictorial health warnings (PHW) on cigarette packs need to be renewed, this project will provide highly policy-relevant and timely scientific evidence on the effect of new PHW policies in Vietnam. Additionally, this project would be the first to address the research gap in understanding the effect of adding quitline information to PHWs-a gap not explored in previous studies. With the potential for significant outcomes, the findings will help Vietnamese policymakers enact stronger PHW policies in upcoming years, aiming to increase perceived harms of smoking and foster smoking cessation, ultimately saving millions of lives in Vietnam

Conditions

• Pictorial Health Warnings

Interventions

OTHER

Branded pack with new PHWs covering 50% of the pack without quitline information

Participants received and were required to view six images depicting a branded cigarette pack with a new set of six pictorial health warnings covering 50% of the pack, without quitline information.

OTHER

Branded pack with new PHWs covering 85% of the pack without quitline information

Participants received and were required to view six images depicting a branded cigarette pack with a new set of six pictorial health warnings covering 85% of the pack, without quitline information.

OTHER

Branded pack with new PHWs covering 85% of the pack with quitline information

Participants received and were required to view six images depicting a branded cigarette pack with a new set of six pictorial health warnings covering 85% of the pack, with quitline information

OTHER

Plain pack with new PHWs covering 85% of the pack with quitline information

Participants received and were required to view six images depicting a plain cigarette pack with a new set of six pictorial health warnings covering 85% of the pack, with quitline information

OTHER

Branded pack with the current set of PHWs covering 50% of the pack without quitline information

Participants received and were required to view 6 images depicting a branded cigarette pack with a current set of 6 pictorial health warnings covering 50% of cigarette packs without quitline information (It is the current pictorial health warnings implemented in Vietnam)

Sponsors & Collaborators

• Hanoi University of Public Health

  collaborator OTHER

• Georgia State University

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2024-08-24

Primary Completion

2024-09-24

Completion

2024-10-08

Countries

• Vietnam

Study Locations