Testing Warning Labels for Retail Cannabis Products Using a Discrete Choice Experiment
2026年7月24日 更新者：University of Oklahoma
Developing and Testing Warning Labels for Retail Cannabis Products
This discrete choice experiment (DCE) study aims to address gaps in cannabis packaging regulatory research by testing how variations in cannabis packaging and health warning design impact reactions to packaging and intentions about cannabis use.
The goal of this work is to identify the most effective combination of health warning features to improve consumer awareness of cannabis health risks.
Establishing criteria for cannabis products in the US is critical because inconsistent state guidelines have resulted in contradictory policies in legal retail states, arguably leading to increased hazardous use and failure to meet public health standards.
The contributions of this study's outcomes are expected to be significant because they will benefit public health as cannabis becomes available in legal retail markets and regulatory and governmental agencies seek effective ways to communicate cannabis risks to the public.
研究概览
详细说明
The DCE will be conducted via a self-administered online questionnaire, with inclusion criteria assessed before assignment to choice set conditions.
Participants will be residents of legal-retail cannabis use states, able to legally purchase cannabis (21 or older), who have used cannabis in the past 30 days (i.e., current use).
Frequency of cannabis use (i.e., monthly, weekly, daily), mode (e.g., flower, vape, etc.), and dose (i.e., THC level) will be measured through self-report.
Inclusion criteria are reported using cannabis (any mode) in the past 30 days.
Consented participants will be presented with descriptions of cannabis packaging attributes and an example choice set to become familiar with DCE tasks.
Participants will be asked to imagine the cannabis products in the DCE as the only choices they have available to them "in the near future" and to evaluate images within this scenario.
Participants will be randomly assigned to view 16 choice sets.
To optimize the evaluation of preferences and reduce respondent burden, we will assign contrasting labels to "choice sets," each of which will include 4 images of products in such a way that each attribute level appears an equal number of times in combination with all other attribute levels.
Presentation order of the 16 choice sets will be randomized within and across choice sets to minimize ordering effects.
Participants will view each choice set for as long as they wish.
After evaluating choice sets, participants will complete a recall task to assess retention of health warning information and will be provided a debrief page with information about substance use and resources for seeking help with substance use.
研究类型
介入性
注册 (估计的)
450
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习联系方式
- 姓名：Zachary Massey, PhD
- 电话号码：405-271-6872
- 邮箱：zachary-massey@ou.edu
学习地点
-
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Oklahoma
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Oklahoma City、Oklahoma、美国、73104
- 招聘中
- University of Oklahoma
-
接触：
- Zachary Massey, PhD
- 电话号码：405-271-6872
- 邮箱：zachary-massey@ou.edu
-
-
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
- 成人
- 年长者
接受健康志愿者
不
研究人群
The study population consists of adults aged 21 years and older residing in U.S. states with legal retail cannabis markets (i.e., adult use non-medical or "recreational") who report cannabis use within the past 30 days.
Participants will be recruited from an online consumer research panel and will represent active adult cannabis consumers in these jurisdictions.
描述
Eligibility for participation includes: 1) being 21 years of age or older, 2) being able to speak and understand English, 3) self-reported having consumed cannabis in the last 30 days (any mode, e.g., flower, vape, edible, etc.), and 4) residing in a U.S. state or jurisdiction where retail (i.e., non-medical) cannabis use is legal.
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：预防
- 分配：不适用
- 介入模型：单组作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Discrete choice experiment (DCE) cohort
Adult participants (21+) enrolled in this single-arm cohort will complete a computer-based discrete choice experiment during a single study visit (conducted online).
They will review a series of hypothetical cannabis products and select their preferred options.
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A discrete choice experiment (DCE) consisting of 16 distinct choice sets.
Each choice set presents combinations of the following attributes: 1) Cannabis package style: 1) "Standardized" plain package, 2) plain package with brand logo and fonts, 3) brand color background with brand logo and fonts, and 4) fully branded with brand imagery, brand logo, and brand descriptors and fonts.
Branding type: 1) Adventure brand vs. 2) Earthy brand.
Health warning size: 1) Small (20% of packaging surface) - health warnings use currently mandated warning language from multiple jurisdictions vs. 2) Large (40% of packaging surface) - health warnings use currently mandated warning language from multiple jurisdictions.
Product THC content: 1) Low THC vs. 2) High THC.
Product type: 1) Joints, 2) Vape, 3) Edibles, and 4) Drinks.
Participants will rate all combinations of product attributes.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Risk perceptions about cannabis products
大体时间：At the time of survey completion (approximately 15 minutes)
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Binary measure using best-worst scaling.
For each question, participants will also have the option of indicating none of the above/opt-out as a response.
For each choice set, the statement selected as the best option will be coded using a value of 1, and the worst will be coded as -1.
The remaining statements in that set will be coded as 0. If the participant selects none of the above, all statements in that choice set will be assigned a value of 0.
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At the time of survey completion (approximately 15 minutes)
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Cannabis product use intentions
大体时间：At the time of survey completion (approximately 15 minutes)
|
Binary measure using best-worst scaling.
For each question, participants will also have the option of indicating none of the above/opt-out as a response.
For each choice set, the statement selected as the best option will be coded using a value of 1, and the worst will be coded as -1.
The remaining statements in that set will be coded as 0. If the participant selects none of the above, all statements in that choice set will be assigned a value of 0.
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At the time of survey completion (approximately 15 minutes)
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Zachary Massey, PhD、University of Oklahoma
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2026年5月19日
初级完成 (估计的)
2026年12月31日
研究完成 (估计的)
2026年12月31日
研究注册日期
首次提交
2026年7月7日
首先提交符合 QC 标准的
2026年7月7日
首次发布 (实际的)
2026年7月14日
研究记录更新
最后更新发布 (实际的)
2026年7月27日
上次提交的符合 QC 标准的更新
2026年7月24日
最后验证
2026年7月1日
更多信息
与本研究相关的术语
其他相关的 MeSH 术语
其他研究编号
- 17276
- 1K01DA057395-01A1 (美国 NIH 拨款/合同)
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)？
未定
IPD 计划说明
The data that support the findings of this study are available from the corresponding author upon reasonable request.
药物和器械信息、研究文件
研究美国 FDA 监管的药品
不
研究美国 FDA 监管的设备产品
不
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.