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Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use Cigarettes, E-cigarettes and Cannabis (Co-Tox Study)

Roswell Park Cancer Institute · NCT07167225

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Opens the official ClinicalTrials.gov record, with the study team’s contacts. Bored Studies doesn’t enroll anyone.

Key facts

Compensation
Not posted. Ask the study team before screening.
Who can join
Ages 18–25 · All sexes
Healthy volunteers
Accepted
Study type
Observational
Target enrollment
150
US sites recruiting
1
Study start
April 3, 2025
Record last updated
August 26, 2026

Status re-checked against ClinicalTrials.gov within the last 12 hours.

What the study is about

This study evaluates the amount of nicotine, cannabis, and toxicants linked to the use of nicotine e-cigarette and/or cannabis products in the blood and urine of young adult users as well as the cannabis and nicotine use behaviors of consumers.

Being studied: Effectiveness of different recruitment approaches; Choice of study completion locations; Cannabis Engagement Assessment; E-cigarette dependence Scale; Nicotine dependence Scale; Co use practices QUestionnaire

Conditions: Cigarette Smoking-Related Carcinoma; E-Cig Use

Eligibility criteria

Copied from the official record. The study team makes the final decision at screening.

Show full criteria

Inclusion Criteria

  • Young adult (18-25 years old).
  • Ability to read and write in English.
  • Participants must fall into one of the following groups (based on self-report):
  • Predominant e-cigarette consumer: defined as using nicotine-containing e-cigarettes daily for the past six months but not having used other nicotine containing products more than weekly or cannabis products for the past month.
  • Predominant cannabis consumer: defined as using cannabis at least 3x/week for the past six months in any form, including smoking, vaping, and oral use, with no more than weekly use of any nicotine or tobacco products.
  • E-cigarette-cannabis co-consumers: defined as daily use of nicotine e-cigarettes and use of cannabis at least 3x/week, including smoking, vaping, and oral use, for at least the past six months, with no use of other nicotine containing products more than weekly
  • Predominant cigarette consumers: defined as using cigarettes at least daily for the past six months, but not have used other nicotine-containing products more than weekly or cannabis products for the past month
  • Predominant cigarette-cannabis co-consumers: defined as those reporting daily cigarette use and use of cannabis at least 3x/week (including smoking or vaping) for at least the past six months, with no more than weekly use of other nicotine-containing products
  • No self-reported diagnosis of kidney disease (current, or within the past year prior to the study visit).
  • Participants must understand the voluntary nature of this study and sign a written informed consent form before proceeding with study activities.

Exclusion Criteria

  • Individuals under the age of 18 or over the age of 25.
  • Currently pregnant or breastfeeding (female participants).
  • Unwilling or unable to follow protocol requirements

Recruiting US locations

  • Roswell Park Comprehensive Cancer Center

    Buffalo, NY 14263

    Site contact: ASK RPCI · 877-275-7724

Study contacts (from the official record)

  • ASK RPCI · 1-800-767-9355 · askroswell@roswellpark.org
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Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use… (NCT07167225) | Bored Studies