Understanding Tobacco and Cannabis Co-Use Practices: Initiation, Escalation, and Maintenance

NCT07439471 — Recruiting, 40 participants, Roswell Park Cancer Institute

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Registry	NCT07439471
Status	Recruiting
Study type	Observational
Enrollment	40 (Estimated)
Sponsor	Roswell Park Cancer Institute (Other)
Conditions	Cigarette Smoking-Related Carcinoma
Interventions	Non-Interventional Study (Other)
Dates	start 2026-09-28 (estimated), primary completion 2027-03-01 (estimated), completion 2027-03-01 (estimated), first posted 2026-02-27, last updated 2026-08-17
Locations	1 site in United States

-Summary

This study evaluates histories among cannabis and tobacco co-users of their initiation, escalation, and maintenance of the co-use behavior.

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+Detailed description

PRIMARY OBJECTIVE:

I. To generate detailed thematic analysis of structured interviews to provide insights into individual historical factors, social contextual factors, and product-level factors that contribute to the co-use of nicotine/tobacco and cannabis products.

OUTLINE: This is an observational study.

Participants complete an interview and survey on study.

+Arms and interventions

Arm	Type	Interventions	Description
Observational		Other: Non-Interventional Study	Participants complete an interview and survey on study.

Non-Interventional Study (Other), also known as Non-Interventional Observational Study, Noninterventional (Observational) Study: Non-interventional study

+Outcome measures

Primary outcomes

thematic analysis of individual narratives on nicotine and cannabis [Reported at baseline]: Structured interview sessions

Secondary outcomes

Insight into the Social contexts of use and co-use of nictotine and cannabis [reported at baseline]: Structured interview session on escalation of use
Insight into Current practices of tobacco/cannabis use [reported at baseline]: Structured interview session on maintenance of use
Insights into factors that contribute to the co-use of nicotine/tobacco and cannabis products [reported at baseline]: Structured interview sessions on history of use

+Eligibility

Sex: All, ages: 18 Years to 30 Years

Inclusion Criteria:

* * Adults aged 18 to 30 years old.

  * Currently living in the Roswell Park catchment area.
  * Able to speak, read, and write in English.
  * Currently consuming cannabis at least weekly.

    * Group 1: currently using cigarettes daily and not using nicotine vaping products more than one day per week.
    * Group 2: currently using nicotine vaping products daily and not using cigarettes more than one day per week.

Exclusion Criteria:

* * Unwilling or unable to follow protocol requirements.

  * Individuals under the age of 18 or over 30.
  * Individuals not meeting product consumption criteria for inclusion items 3 and 4.

+Locations (1)

Facility	City	Country	Status
Roswell Park Cancer Institute	Buffalo, New York	United States	Recruiting

+Investigators

Connor Martin, Principal investigator, Roswell Park Cancer Institute