Trial · NCT07910331
§SMOKE Nicotine and Tobacco Youth Cohort
NCT07910331, Recruiting, University of Southern Denmark
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. §SMOKE Nicotine and Tobacco Youth Cohort. Trials, record NCT07910331. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07910331
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- §SMOKE Nicotine and Tobacco Youth Cohort
- NCT number
- NCT07910331
- Status
- Recruiting
- Enrollment
- 10,000 participants, estimated
- Lead sponsor
- University of Southern Denmark
- Conditions
Tobacco Use Behavior, Nicotine Dependence Tobacco Product, E-Cigarette Use, Smoking ( Cigarette), Smoking Cessation, Nicotine Pouches, Heated Tobacco Products, Polytobacco Use, Adolescent Health, Young Adult Health
- First posted
- 2026-11-02
- Last updated
- 2026-11-09
Source ClinicalTrials.gov
Registered outcomes10
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Longitudinal tobacco and nicotine use trajectories | Baseline through 4 years | Patterns of tobacco and nicotine use over time, including initiation, cessation, relapse, product switching, exclusive product use, and multiple-product use. |
| Primary | Transitions between tobacco and nicotine use states/behavior | Baseline through 4 years | Transitions between predefined or latent use states (e.g., non-use, experimentation, regular use, cessation, relapse, and multiple-product use) observed across follow-up waves. |
| Primary | Educational, health, and social outcomes associated with tobacco and nicotine use trajectories | Baseline through end of available register follow-up | Educational attainment, healthcare utilization, mental health indicators, and labour market outcomes associated with different tobacco and nicotine use trajectories. |
| Primary | Predictors of tobacco and nicotine use initiation and continuation | Baseline through 4 years | Associations between individual, psychological, interpersonal, and societal factors and subsequent initiation, continuation, cessation, relapse, and product switching of tobacco and nicotine products. Factors include dependence symptoms, risk perceptions, mental health, peer and parental use, marketing exposure, product availability, and exposure to tobacco control policies. |
| Secondary | Initiation of tobacco or nicotine product use | Baseline through 4 years | First reported use of any tobacco or nicotine product among baseline non-users. |
| Secondary | Cessation of tobacco or nicotine use | Baseline through 4 years | Transition from current use to sustained non-use of tobacco or nicotine products. |
| Secondary | Poly-product tobacco and nicotine use | Baseline through 4 years | Concurrent use of two or more tobacco or nicotine products. |
| Secondary | Nicotine dependence | Baseline through 4 years | Level of self-reported nicotine dependence measured using The Short Nicotine Dependence Index. The scale runs from 1 (lowest) to 9 (highest). |
| Secondary | Change in perceived relative health risk of tobacco and nicotine products compared with cigarettes | Baseline through 4 years | Change in perceived health risk of tobacco and nicotine products relative to cigarettes, assessed using a single survey item: "How would you rate the following products in relation to cigarettes in terms of health risks?" |
| Secondary | Health-related quality of life (QALYs) | Baseline through 4 years | Health-related quality of life associated with different tobacco and nicotine use trajectories and transition patterns, assessed using the EuroQol 5-Dimension Youth Version (EQ-5D-Y) and the Child Health Utility 9D (CHU9D). The EQ-5D-Y descriptive system consists of 5 dimensions (mobility, self-care, usual activities, pain/discomfort, and feeling worried, sad or unhappy), each with 3 response levels. Responses can be converted into a utility index score, with higher scores indicating better health-related quality of life. The CHU9D consists of 9 dimensions with 5 response levels each and can similarly be converted into a utility index score. Quality-adjusted life years (QALYs) may be estimated directly from participant-reported data or derived using published utility weights where appropriate. |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07910331
GET https://conductscience.org/api/trials/v1/NCT07910331/registered