Substance Use and Media Preferences
The goal of this randomized clinical trial is to learn how alcohol use, cannabis use, and using both substances affect whether and how quickly people stop a video being shown to a woman. The study will recruit 312 people from the Metro-Denver area who drink alcohol and use cannabis; half of the participants will be women. The main questions it aims to answer are:
- How do alcohol, cannabis, and their combined use affect whether participants stop the video and how quickly they do so?
- Does alcohol use versus alcohol and cannabis use by others in the scenario affect whether and how quickly participants stop the video?
Researchers will compare four randomly assigned groups: alcohol only, cannabis only, both alcohol and cannabis, and neither substance. Participants will also be randomly assigned to one of two scenarios involving alcohol use or alcohol and cannabis use by others. These comparisons will help researchers understand how participants' own substance use and substance use by others affect their decisions to intervene.
Participants will:
- Complete a phone call to review the study and schedule a mobile laboratory visit at their home.
- Have their ID checked, complete a breath alcohol test to confirm no alcohol is in their system, and be weighed. Female participants will also take a pregnancy test.
- Provide written consent and complete questionnaires so researchers can confirm eligibility before random assignment.
- Follow their assigned substance-use condition. Participants in the cannabis-only group will smoke their usual cannabis at home while staff monitor them through Zoom. Those in the alcohol-only group will drink two weight-based alcoholic beverages, with a target blood alcohol concentration of 0.08%. Those assigned to both substances will use cannabis first and then drink alcohol. Those assigned to neither substance will not use either as part of the study.
- Provide blood and breath samples to measure cannabis-related THC and alcohol levels.
- Complete a task in which they can choose to stop a video being shown to a woman. Researchers will measure whether they stop the video and how long they take to do so.
- Take part in a recorded interview about their experience and the reasons they did or did not stop the video. Researchers will analyze these interviews to better understand how substance use affects decisions.
- Answer questions about what they believed the study was testing and their impressions of the other participants, receive an explanation of the study, and receive compensation.
研究概览
地位
地位
条件
条件
干预/治疗
干预/治疗
研究类型
研究类型
注册 (估计的)
注册
阶段
阶段
- 不适用
联系人和位置
学习地点
-
-
Colorado
-
Denver、Colorado、美国、80045
- University of Colorado Anschutz Medical Campus
-
接触:
- Ruschelle Leone, PhD
- 电话号码:303-724-7052
- 邮箱:ruschelle.leone@cuanschutz.edu
-
首席研究员:
- Ruschelle Leone, PhD
-
-
参与标准
资格标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Provision of signed and dated informed consent form.
- Stated willingness to comply with all study procedures and lifestyle considerations .
- Aged 21-30, verified by a photo ID.
- Consume an alcohol quantity on a single occasion that is equal to or greater than the dose administered in the laboratory on ≥ 3 days in the past year (see Table 1).
- Smoked cannabis ≥ 3 days in the past year.
- Engaging in simultaneous alcohol and cannabis use ≥ 1 day in the past year.
Exclusion Criteria:
- Currently being treated or in recovery for alcohol or drug problems; currently interested in seeking treatment for drinking or drug use via self-report.
- Experienced an adverse event while co-using alcohol and cannabis at any time in the past 3 months.
- Any medical or psychiatric condition, as well as current use of a medication, that would contraindicate alcohol administration as determined by the Study Physician.
- Acute Psychiatric Symptomatology: elevated psychological distress as indicated by a score greater than 65 on the Brief Symptom Inventory.
- Self-report that a participant is trying to get pregnant, currently pregnant, or a positive pregnancy test.
- Combined height and weight that is either less than 6 feet tall and over 230 lbs, or over 250 lbs and over 6 ft tall as measured during the lab visit or by a valid photo ID.
- Current or past participation in PI Leone's research study 'Understanding the Influence of Alcohol and Media on Relationships' protocol #24-1867.
学习计划
研究是如何设计的?
设计细节
- 主要用途:基础科学
- 分配:随机化
- 介入模型:阶乘赋值
- 屏蔽:无(打开标签)
手臂数量
武器和干预
参与者组/臂参与者组/臂 |
干预/治疗干预/治疗 |
|---|---|
|
实验性的:Alcohol Consumption + Alcohol Consumption of Others
Participants will be assigned to drink alcohol and the others in the study will also be assigned to drink alcohol. |
Participants will consume a moderate alcohol dose condition (target BrAC .08%) with the National Institute on Alcohol Abuse and Alcoholism (NIAAA) approved alcohol administration procedures. Others in the study will be assigned to drink alcohol |
|
实验性的:Alcohol Consumption + Alcohol/Cannabis Consumption of Others
Participants will be assigned to drink alcohol and the others in the study will be assigned to drink alcohol and consume cannabis. |
Participants will consume a moderate alcohol dose condition (target BrAC .08%) with the National Institute on Alcohol Abuse and Alcoholism (NIAAA) approved alcohol administration procedures. Others in the study will be assigned to drink alcohol and consume cannabis |
|
实验性的:Alcohol/Cannabis Consumption + Alcohol Consumption of Others
Participants will be assigned to drink alcohol and consume cannabis; and the others in the study will be assigned to drink alcohol. |
Others in the study will be assigned to drink alcohol Participants in this group will self-administer legal-market flower cannabis Participants will consume a moderate alcohol dose condition (target BrAC .08%) with the National Institute on Alcohol Abuse and Alcoholism (NIAAA) approved alcohol administration procedures. |
|
实验性的:Alcohol/Cannabis Consumption + Alcohol/Cannabis Consumption of Others
Participants will be assigned to drink alcohol and consume cannabis; and the others in the study will be assigned to drink alcohol and consume cannabis. |
Others in the study will be assigned to drink alcohol and consume cannabis Participants in this group will self-administer legal-market flower cannabis Participants will consume a moderate alcohol dose condition (target BrAC .08%) with the National Institute on Alcohol Abuse and Alcoholism (NIAAA) approved alcohol administration procedures. |
|
有源比较器:Sober + Alcohol Consumption of Others
Participants will be assigned to drink a non-alcohol control beverage; and the others in the study will be assigned to drink alcohol. |
Others in the study will be assigned to drink alcohol Participants will be assigned to a no-alcohol control beverage and to not consume cannabis. |
|
有源比较器:Sober + Alcohol/Cannabis Consumption of Others
Participants will be assigned to drink a non-alcohol control beverage; and the others in the study will be assigned to drink alcohol and consume cannabis. |
Others in the study will be assigned to drink alcohol and consume cannabis Participants will be assigned to a no-alcohol control beverage and to not consume cannabis. |
|
实验性的:Cannabis Consumption + Alcohol Consumption of Others
Participants will be assigned to consume cannabis, and the others in the study will be assigned to drink alcohol. |
Others in the study will be assigned to drink alcohol Participants in this group will self-administer legal-market flower cannabis |
|
实验性的:Cannabis Consumption + Alcohol/Cannabis Consumption of Others
Participants will be assigned to consume cannabis, and the others in the study will be assigned to drink alcohol and consume cannabis. |
Others in the study will be assigned to drink alcohol and consume cannabis Participants in this group will self-administer legal-market flower cannabis |
研究衡量的是什么?
主要结果指标
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Intervention Likelihood
大体时间:Up to three hours after consent
|
Stopping a woman from watching content during the Bystander Intervention Paradigm (Parrott et al., 2012, Leone et al., 2015). Possible scores are 0 (not stopping) to 1 (stopping). |
Up to three hours after consent
|
|
Intervention Speed
大体时间:Up to three hours after consent
|
The amount of time the woman watches the sexually explicit film during the Bystander Intervention Paradigm (Parrott et al., 2012, Leone et al., 2015). Scores range from 0 to 4 minutes. |
Up to three hours after consent
|
|
Number of Bystander Barriers
大体时间:Up to four hours after consent
|
Count number of barriers experienced during the paradigm via a semi-structured interview. |
Up to four hours after consent
|
|
Number of Bystander Facilitators
大体时间:Up to four hours after consent
|
Count number of facilitators experienced during the paradigm via a semi-structured interview. |
Up to four hours after consent
|
合作者和调查者
合作者
合作者
研究记录日期
研究主要日期
学习开始 (估计的)
学习开始
初级完成 (估计的)
初级完成
研究完成 (估计的)
研究完成
研究注册日期
首次提交
首次提交
首先提交符合 QC 标准的
首先提交符合 QC 标准的
首次发布 (实际的)
首次发布
研究记录更新
最后更新发布 (实际的)
最后更新发布
上次提交的符合 QC 标准的更新
上次提交的符合 QC 标准的更新
最后验证
最后验证
更多信息
与本研究相关的术语
其他研究编号
其他研究编号
- 26-1956
- R01AA032801 (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)?
IPD 计划说明
IPD will be available in the NIAAA Data Archive.
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
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.