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Enrolling by Invitation

NCT Number: NCT07513337

Effects of Cannabis Species Labeling and Marketing on Perceptual, Subjective and Objective Use Outcomes (Aim 2 Study)

This study looks at how cannabis product label and marketing claims affect product perceptions, use expectancies, and use intentions among inexperienced and experienced cannabis users. Participants will answer online survey questions on their perceptions of a cannabis product advertisement.

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Key information

Conditions

Cannabis Use

Age range

21 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

2213 McElderry St.

Baltimore, Maryland, 21205, United States

About this study

This study aims to specify how product label and marketing claims affect product perceptions, use expectancies, and use intentions among cannabis users. A randomized 4 (Sativa, Indica, Hybrid, no strain label) x 3 (energizing, sedative, no claim) online experiment will be conducted with a sample of adults from states that have legalized adult cannabis recreational use. Our main research questions are: (1) Do label and marketing claim affect (a) harm perceptions, (b) subjective effects expectancies (e.g., arousal, sedation), (c) willingness to use, and (d) willingness to use during daily activities (e.g., driving)? and (2) Do label and marketing claim interact to affect product perceptions, use expectancies, and use intentions?

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age = 21+
  • Live in in a US state (or Washington D.C.) in which recreational cannabis sale is legal and implemented
  • For inexperienced users: lifetime cannabis use >1 & <= 10
  • For experienced users: lifetime cannabis use>10 & <100, past month cannabis use>0

Exclusion criteria

  • Under age 21
  • Does not live in a US state (or Washington D.C.) in which recreational cannabis sale is legal and implemented
  • Lifetime cannabis use >=100 times
  • Lifetime cannabis use <1 time
  • Lifetime cannabis use>10 & <100 AND past month cannabis use=0

Treatment and study plan

Strain label

Other

Presentation of strain label on cannabis advertising material

Claim

Other

Presentation of claim on cannabis advertising material

Primary outcomes

  1. Harm perception - One time use

    Time frame: Immediately after viewing ad

    How harmful participant perceives the product to be after one time use. Participants will answer a survey item, In your opinion, what is the level of risk to one's health from using the product you just viewed one time?; with response options ranging from 0-Very low risk to 4-Very high risk.

  2. Harm perception - Daily use

    Time frame: Immediately after viewing ad

    How harmful participant perceives the product to be with daily use. Participants will answer a survey item, In your opinion, what is the level of health risk from using the product you just viewed on a daily basis?; with response options ranging from 0-Very low risk to 4-Very high risk.

  3. Expectancy effects

    Time frame: Immediately after viewing ad

    Effects participant expects to feel after using the product. Participants will answer a survey item, Please rate the extent to which you expect to feel each of the following effects [paranoid; panicked; fearful; anxious; suspicious; like my heart is racing; sluggish; drowsy; out of it; slow; lazy; excited; heightened senses; sociable; creative; wise; in tune with nature; focused; productive; sleepy; happy; euphoric; calm; relaxed; pain-free] after using the product you just viewed; with response options ranging from 0-not at all to 10-extremely.

  4. Willingness to use

    Time frame: Immediately after viewing ad

    How willing participant is to use the product. Participants will answer a survey item, How willing would you be to use the product you just viewed?; with response options ranging from 0-Not at all willing to 4-Very willing.

  5. Willingness to use during daily activities

    Time frame: Immediately after viewing ad

    How willing participant is to use the product during daily activities. Participants will answer a survey item, How willing would you be to use the product you just viewed if you [wanted to concentrate; wanted to relax; wanted to socialize; wanted to do a creative activity (e.g., art, music); wanted to feel happier; wanted to relieve medical symptoms/treat a medical condition/mental health condition; were going to drive a car in the next 30 minutes; were going to bed in the next 30 minutes; were planning to stay home for the next several hours; were going to work in the next 30 minutes; were at a party]?; with response options ranging from 0-Not at all willing to 4-Very willing.

Sponsors and collaborators

Lead sponsor

Johns Hopkins Bloomberg School of Public Health

Other

Collaborators

  • National Institute on Drug Abuse (NIDA)

Registry information

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Apr 7, 2026
Registry last updated
Jul 20, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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