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Perceptions of Proposed Warnings for Cannabis Edibles Packaging

Perceptions of Proposed Warnings for Cannabis Edibles Packaging (Cannabis Edibles Aim 2 Experiment)

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07496489
Enrollment
1250
Registered
2026-03-27
Start date
2026-05-27
Completion date
2026-07-21
Last updated
2026-08-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cannabis Use

Keywords

Cannabis, edibles, marijuana, marketing, packaging, warnings

Brief summary

The purpose of this study is to compare a delayed-effects warning to an expanded warning developed in previous experiments on knowledge, harm perceptions, and willingness to try cannabis edibles. Additionally, this study will examine the effects of a corresponding icon on attention to and recall of the warning.

Detailed description

Cannabis edibles are rapidly leading the legal recreational cannabis market. The Cannabis edibles present health harms that are not typical of smoked marijuana, including accidental overconsumption of high levels of THC. One effective way to communicate proper dosing and risks of overconsumptions is through package warnings. This experiment will assign participants to view real cannabis edibles packaging with one of four variations of warnings and a series of questions to assess knowledge, harm perceptions, and willingness to try the product shown. One group of participants will serve as the control and will see the same cannabis edibles packaging without a warning.

Interventions

BEHAVIORALNo Warning Control

Participants in the control condition will see an edible cannabis package without a warning message.

BEHAVIORALDelayed Effects Text Only

Participants will see a cannabis edibles package with a warning message containing a delayed effects message.

BEHAVIORALDelayed Effects Plus Icon

Participants will see a cannabis edibles package with a warning containing a delayed effects message and a corresponding icon.

BEHAVIORALDelayed Effects Plus Dose

Participants will view a cannabis edibles package with a warning containing delayed effects message and dosing instructions.

BEHAVIORALDelayed Effects Plus Dose Plus Adverse Effects

Participants will view a cannabis edibles package with a warning containing delayed effects, dosing instructions, and adverse effects message.

Sponsors

Wake Forest University Health Sciences
Lead SponsorOTHER
National Institute on Drug Abuse (NIDA)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)

Intervention model description

Assign participants to view a cannabis edibles package with one of four variations of a warning and answer a series of questions assessing knowledge, harm perceptions, and willingness to try the product shown. One group will serve as the control and will see the same cannabis edibles package without a warning.

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* English-speaking by self-selection * United States resident

Exclusion criteria

* Already participated in a precursor project (IRB00104038, IRB000111438) * Eligible but demographic and user group strata have already been met

Design outcomes

Primary

MeasureTime frameDescription
Product appeal scoreMinute 1One item to assess the appeal of the product. Results will be reported as means. Question: How appealing is this edible to you? Response options: (0) Not at all appealing to (10) Very appealing. Higher score denoting more appeal
Perception of product safety scoreMinute 1One item to assess the participants' perception of the safety of the product. Results will be presented as the frequency of each type of response. Question: How safe do you think it would be to eat this edible? Response options: (1) Not at all safe, (2) Slightly safe, (3) Somewhat safe, (4) Moderately safe, (5) Very safe. Higher score denoting more safe to eat
Perceived likelihood of experiencing unwanted effects scoreMinute 1One item to assess the participants' perception of the likelihood of experiencing unwanted effects. Results will be presented as the frequency of each type of response. Question: How likely are you to experience unwanted effects if you eat this edible? Response options: (1) Not at all likely, (2) Slightly likely, (3) Somewhat likely, (4) Moderately likely, (5) Very likely. Higher score denoting greater likelihood of experiencing side effects
Interest in a free sample scoreMinute 1One item to assess how interested a participant would be in a free sample of the product. Results will be presented as the frequency of each type of response. Question: How interested would you be in a free sample of this edible? Response options: (1) Not at all interested, (2) Slightly interested, (3) Somewhat interested, (4) Moderately interested, (5) Very interested. Higher score denoting more interest
Concern about the risks of overconsumption due to warning scoreMinute 1One item to assess how much the warning makes the participant concerned about the risks of overconsumption for participants randomized to view a package with a warning (intervention conditions only). Results will be presented as the frequency of each type of response. Question: How much does this warning make you concerned about potential risks from eating too much of this edible? Response options: (1) Not at all, (2) A little, (3) Somewhat, (4) Quite a bit, (5) A great deal. Higher score denotes more concern
Improved understanding of safe consumption due to warning scoreMinute 1One item to assess how much the warning gives the participant a better understanding of how to safely consume an edible (intervention conditions only). Results will be presented as the frequency of each type of response. Question: How much does this warning give you a better understanding of how to safely consume this edible? Response options: (1) Not at all, (2) a little, (3) somewhat, (4) quite a bit, (5) a great deal. Higher score denotes better understanding of safety

Secondary

MeasureTime frameDescription
Warning recallMinute 1One item to assess the participant's recall of a warning message on the package. Results will be presented as the percentage correctly selected. Question: Do you recall seeing a warning on the package we showed you earlier? Response Options: Yes, No
Attention ScoreMinute 1One measure to assess the extent to which the warning grabbed the participant's attention. Asked of those who recall seeing a warning on the package. Results will be presented as frequency of each type of response. Question: How much did the warning grab your attention? Response options: (0) Not at all, (1) A little, (3) Somewhat, (4) A lot, Higher score denotes more attention

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORBeth Reboussin, PhD

Wake Forest University Health Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 28, 2026