NCT05563181

Brief Summary

The primary objective of this study is to examine differences in intentions (measured by hypothetical beverage selection) between the following conditions: (1) Control condition: Viewing beverages with a barcode, (2) viewing beverages that have an icon-plus-text warning label, "WARNING: High in added sugar", (3) viewing a campaign message about warning labels in one's preferred language + viewing beverages with a barcode, and (4) viewing a campaign message about warning labels in one's preferred language + viewing beverages with the warning label above. An additional objective is to compare other message reactions and perceptions and perceptions of SSBs (sugar-sweetened beverages) between the conditions. This study will use an online randomized controlled trial among Latino/a/x adults to assign participants to one of the above conditions.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,275

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2022

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 26, 2022

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 3, 2022

Completed
4 days until next milestone

Study Start

First participant enrolled

October 7, 2022

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 5, 2022

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 10, 2023

Completed
Last Updated

August 1, 2025

Status Verified

July 1, 2025

Enrollment Period

2 months

First QC Date

September 26, 2022

Last Update Submit

July 29, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Intention to purchase a sugar-sweetened beverage in a hypothetical selection task (not a scale)

    Measured in a hypothetical beverage selection task in which participants are shown supermarket shelves containing a variety of sugar-sweetened and non-sugar-sweetened beverages, labeled according to condition. Participants will be asked to select the one beverage they would want to purchase for themselves, and this outcome will be dichotomized as hypothetical selection of an SSB or not. Adapted from doi: 10.2105/AJPH.2021.306488.

    Approximately 0.5-2 minutes

Secondary Outcomes (9)

  • Intention to consume sugar-sweetened beverages and water in the next 4 weeks (there is no scale title)

    ≤20 minutes

  • Scale title: University of North Carolina (UNC) Perceived message effectiveness (PME)

    ≤20 minutes

  • Noticing the label (not a scale)

    ≤20 minutes

  • Outcome expectations re: sugar-sweetened beverages increasing risk of type 2 diabetes, heart disease, and tooth decay (there is no scale title)

    ≤20 minutes

  • Perception of learning something new from the label (not a scale)

    ≤20 minutes

  • +4 more secondary outcomes

Other Outcomes (1)

  • Intention to purchase a sugar-sweetened beverage for one's child under the age of 18 in a hypothetical selection task (not a scale)

    Approximately 0.5-2 minutes

Study Arms (4)

Control bar code

PLACEBO COMPARATOR

Viewing beverages that contain control labels (i.e., bar codes) on sugar-sweetened beverages

Behavioral: Control bar code label

Warning label

EXPERIMENTAL

Viewing beverages that contain an added-sugar warning label (icon-plus-text yellow label that says, "WARNING: High in added sugar," on sugar-sweetened beverages

Behavioral: Warning label

Control bar code + informational campaign about warning labels

EXPERIMENTAL

Viewing an informational campaign about warning labels followed by viewing beverages that contain control labels (i.e., bar codes) on sugar-sweetened beverages

Behavioral: Control bar code labelBehavioral: Informational campaign poster about added-sugar warning labels

Warning label + informational campaign about warning labels

EXPERIMENTAL

Viewing an informational campaign about warning labels followed by viewing beverages that contain an added-sugar warning label (icon-plus-text yellow label that says, "WARNING: High in added sugar," on sugar-sweetened beverages

Behavioral: Warning labelBehavioral: Informational campaign poster about added-sugar warning labels

Interventions

Viewing beverages that contain control labels (i.e., bar codes) on sugar-sweetened beverages

Control bar codeControl bar code + informational campaign about warning labels
Warning labelBEHAVIORAL

Viewing beverages that contain an added-sugar warning label (icon-plus-text yellow label that says, "WARNING: High in added sugar," on sugar-sweetened beverages

Warning labelWarning label + informational campaign about warning labels

Viewing an informational campaign about added-sugar warning labels. The poster will be shown in Spanish (instead of English) if the participant reports speaking and reading in Spanish better than English.

Control bar code + informational campaign about warning labelsWarning label + informational campaign about warning labels

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Identifying as Latino/a/x
  • Residing within the United States and U.S. territories
  • Age 18+

You may not qualify if:

  • Failing attention check question
  • Speeding (finishing survey in \<33% of the median completion time)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, Davis

Davis, California, 95616, United States

Location

Related Publications (1)

  • Wolf EC, Hall MG, Schillinger D, Krieger J, Woo Baidal JA, Solar S, Lin C, Falbe J. Online RCT of Added-Sugar Warning Labels and Spanish-English Label Education. Am J Prev Med. 2025 Oct;69(4):107966. doi: 10.1016/j.amepre.2025.107966. Epub 2025 Jul 4.

MeSH Terms

Conditions

Behavior

Study Officials

  • Jennifer Falbe

    UC Davis

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

September 26, 2022

First Posted

October 3, 2022

Study Start

October 7, 2022

Primary Completion

December 5, 2022

Study Completion

March 10, 2023

Last Updated

August 1, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations