Clinical trial NCT04716010: Developing and Evaluating Product Messaging
Official title: Developing and Evaluating Product Messaging
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Cancer of Colon
Cancer of Rectum
Lead sponsor: University of North Carolina, Chapel Hill
Sponsor class: OTHER
Collaborators: name: Wellcome Trust
name: University of Edinburgh
name: National Heart, Lung, and Blood Institute (NHLBI)
First posted: 2021-01-20
Enrollment: 4160
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: Purpose: To assess the impact of taxes, warnings, and a combination of taxes and warnings on US adults' decisions to purchase products that contain red meat in an online grocery store.

Procedures (methods): Participants will be recruited from Prime Panels (an online panel research company). Following online consent, participants will be assigned to one of four trial arms: 1) Control (no warning and no tax), 2) Warnings (all products that contain red meat have a health warning and environmental warning), 3) Tax (30% tax on products that contain red meat), and 4) Combined warning and tax (all products that contain red meat will have the two warnings and a 30% tax). Then, participant will enter an online grocery store reflecting their assigned arm. The participant will be instructed to complete a shopping task in the online grocery store. After completing the shopping task, participants will be redirected to an online survey and answer a series of questions about the shopping task, labels (excluding tax and control groups), and taxes (excluding warning and control groups). Questions will also include standard demographic and health related variables.

Detailed description: Participants will be recruited from Prime Panels (an online panel research company). Following online consent, participants will be randomly assigned to one of four trial arms affecting the appearance of an online grocery store. Once in the online grocery store, participants will complete a shopping task. The participants will have 9 specified items to add to their shopping cart (1 pizza, 1 burrito, Burger patties \[meat or vegetarian\], Breakfast sausages \[meat or vegetarian\], 1 frozen individual meal, 1 loaf of bread, 1 sandwich filling \[for example, ham, turkey, or peanut butter\], 1 pack of tortillas, 1 taco filling \[for example, steak, chicken, or beans\]). Participants will be informed that they will not be spending any of their own money to complete the shopping task. After completing the shopping task, participants will be redirected to a survey. They will provide self-reported responses to survey questions (e.g. perceived healthfulness from eating red meat, perceived risk of cancer from eating red meat, thinking about the health/environmental harms of food products). Participants will also answer demographic and health related questions.

Eligibility criteria: Inclusion Criteria:

* 18 years or older
* Consumes red meat at least once per week.
* Responsible for at least 50% of grocery shopping for the household.
* Lives in the United States

Exclusion Criteria:

* Individuals who have participated in research studies from previous aims of this research.

Primary outcomes:
measure: Count of Products That Contain Red Meat
timeFrame: At completion of ~15 minute shopping task
measure: Percentage of Red Meat Containing Products
timeFrame: At completion of ~15 minute shopping task
Secondary outcomes:
measure: Total Saturated Fat
timeFrame: At completion of ~15 minute shopping task
measure: Total Sodium
timeFrame: At completion of ~15 minute shopping task
measure: Total Calories
timeFrame: At completion of ~15 minute shopping task
measure: Perceived Healthfulness
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Perceived Cancer Risk
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Perceived Environmental Risk
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Cognitive Elaboration (Health)
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Cognitive Elaboration (Environment)
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Cognitive Elaboration (Price)
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Specific Perceived Healthfulness
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Specific Perceived Environmental Risk
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Perceived Cost of the Burger Product.
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Perceived Cost of the Pizza Product.
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Perceived Cost of the Ham Product.
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Intention to Reduce
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
Other outcomes:
measure: Percentage of Participants Who Support Tax
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Percentage of Participants Who Support Health Warning Label
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Percentage of Participants Who Support Environmental Warning Label
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Mean Modified Waterlander Acceptability Scale Score
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
measure: Ease of Store Use
timeFrame: ~15 minutes post-test computer survey following the ~15 minute shopping task
Locations:
city: Chapel Hill
country: United States
facility: Carolina Population Center
state: North Carolina
Study officials:
affiliation: University of North Carolina, Chapel Hill
name: Lindsey S Taillie, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Edinburgh
name: Lindsay Jaacks, PhD
role: PRINCIPAL_INVESTIGATOR
References: