Trial · NCT04843501
Middle School Cluster Randomized Controlled Trial (RCT) to Evaluate E-Cigarette Prevention Program: CATCH My Breath
NCT04843501, Not applicable, Completed, The University of Texas Health Science Center, Houston; results first posted 2026-02-06
3 sourcestrials-2026-11-12-0.5.0
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ConductScience Library. Middle School Cluster Randomized Controlled Trial (RCT) to Evaluate E-Cigarette Prevention Program: CATCH My Breath. Trials, record NCT04843501. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04843501
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Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Middle School Cluster Randomized Controlled Trial (RCT) to Evaluate E-Cigarette Prevention Program: CATCH My Breath
- NCT number
- NCT04843501
- Status
- Completed
- Phases
- Not applicable
- Enrollment
- 2,059 participants, actual
- Lead sponsor
- The University of Texas Health Science Center, Houston
- Conditions
- E-cigarette Use
- Interventions
- CATCH My Breath (CMB) program for E-cigarette prevention among adolescents, Texas Education Agency (TEA) required tobacco prevention program
- First posted
- 2021-04-13
- Last updated
- 2026-02-06
- Results first posted
- 2026-02-06
Source ClinicalTrials.gov
Registered outcomes6
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Number of Students Who Currently Use E-cigarettes | baseline | Current use is defined as e-cigarette use in the last 30 days. |
| Primary | Number of Students Who Currently Use E-cigarettes | 3 years | Current use is defined as e-cigarette use in the last 30 days. |
| Primary | Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | baseline | |
| Primary | Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | 3 years | |
| Primary | Number of Students Who Are Susceptible to E-cigarette Use | baseline | Susceptibility to e-cigarette use is defined as never used an e-cigarette but having tendencies that indicate that e-cigarette use is likely. Susceptibility is assessed with a questionnaire that asks "Do any of your friends use e-cigarettes?," "Are you curious about e-cigarettes?," and "Do you think you will try an e-cigarette in the next year?" Yes to any of these three questions indicates susceptibility to e-cigarette use. |
| Primary | Number of Students Who Are Susceptible to E-cigarette Use | 3 years | Susceptibility to e-cigarette use is defined as never used an e-cigarette but having tendencies that indicate that e-cigarette use is likely. Susceptibility is assessed with a questionnaire that asks "Do any of your friends use e-cigarettes?," "Are you curious about e-cigarettes?," and "Do you think you will try an e-cigarette in the next year?" Yes to any of these three questions indicates susceptibility to e-cigarette use. |
Source ClinicalTrials.gov
Outcomes6
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
| Type | Outcome | Time frame | Population | Units | Measured as |
|---|---|---|---|---|---|
| PRIMARY | Number of Students Who Currently Use E-cigarettes | baseline | Participants who reported ever using e-cigarettes at baseline were included in the analysis for this outcome measure. | Participants | COUNT_OF_PARTICIPANTS |
| PRIMARY | Number of Students Who Currently Use E-cigarettes | 3 years | Participants who reported ever using e-cigarettes at 3 years were included in the analysis for this outcome measure. | Participants | COUNT_OF_PARTICIPANTS |
| PRIMARY | Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | baseline | Participants | COUNT_OF_PARTICIPANTS | |
| PRIMARY | Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | 3 years | Participants | COUNT_OF_PARTICIPANTS | |
| PRIMARY | Number of Students Who Are Susceptible to E-cigarette Use | baseline | Participants who indicated they have never used an e-cigarette were assessed for this outcome. Data were only collected for participants who answered the questions. | Participants | COUNT_OF_PARTICIPANTS |
| PRIMARY | Number of Students Who Are Susceptible to E-cigarette Use | 3 years | Participants who indicated they have never used an e-cigarette were assessed for this outcome. Data were only collected for participants who answered the questions. | Participants | COUNT_OF_PARTICIPANTS |
Source ClinicalTrials.gov
Results by group12
Each measurement the trial posted, group by group, in the words and numbers it posted.
| Outcome | Group | Category | Value | Spread | Units |
|---|---|---|---|---|---|
| Number of Students Who Currently Use E-cigarettes | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 9 | Participants | ||
| Number of Students Who Currently Use E-cigarettes | Texas Education Agency Required Tobacco Prevention Program | 4 | Participants | ||
| Number of Students Who Currently Use E-cigarettes | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 5 | Participants | ||
| Number of Students Who Currently Use E-cigarettes | Texas Education Agency Required Tobacco Prevention Program | 1 | Participants | ||
| Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 37 | Participants | ||
| Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | Texas Education Agency Required Tobacco Prevention Program | 17 | Participants | ||
| Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 27 | Participants | ||
| Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | Texas Education Agency Required Tobacco Prevention Program | 25 | Participants | ||
| Number of Students Who Are Susceptible to E-cigarette Use | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 357 | Participants | ||
| Number of Students Who Are Susceptible to E-cigarette Use | Texas Education Agency Required Tobacco Prevention Program | 171 | Participants |
1 to 10 of 12Source ClinicalTrials.gov
See all 12 results by groupParticipant flow36
How many started, completed or left each group, period by period.
| Period | Milestone | Group | Participants | Units counted |
|---|---|---|---|---|
| Fall 2021 | STARTED | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 1,110 | 12 |
| Fall 2021 | STARTED | Texas Education Agency Required Tobacco Prevention Program | 611 | 10 |
| Fall 2021 | COMPLETED | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 1,110 | 12 |
| Fall 2021 | COMPLETED | Texas Education Agency Required Tobacco Prevention Program | 611 | 10 |
| Fall 2021 | NOT COMPLETED | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 0 | 0 |
| Fall 2021 | NOT COMPLETED | Texas Education Agency Required Tobacco Prevention Program | 0 | 0 |
| Spring 2022 | STARTED | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 892 | 12 |
| Spring 2022 | STARTED | Texas Education Agency Required Tobacco Prevention Program | 457 | 10 |
| Spring 2022 | COMPLETED | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 892 | 12 |
| Spring 2022 | COMPLETED | Texas Education Agency Required Tobacco Prevention Program | 457 | 10 |
1 to 10 of 36Source ClinicalTrials.gov
See all 36 participant flowAdverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals6
The totals the trial posted for each group.
| Total | Group | Affected | At risk |
|---|---|---|---|
| Total, all-cause mortality | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 0 | 1,332 |
| Total, all-cause mortality | Texas Education Agency Required Tobacco Prevention Program | 0 | 727 |
| Total, other adverse events | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 0 | 1,332 |
| Total, other adverse events | Texas Education Agency Required Tobacco Prevention Program | 0 | 727 |
| Total, serious adverse events | CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents | 0 | 1,332 |
| Total, serious adverse events | Texas Education Agency Required Tobacco Prevention Program | 0 | 727 |
Source ClinicalTrials.gov
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants1
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.
| Project | Title | Principal investigators | Organization | Funder | Fiscal years |
|---|---|---|---|---|---|
| R01CA242171 | Middle School Cluster RCT to Evaluate E-Cigarette Prevention Program: CATCH My Breath | KELDER, STEVEN HAROLD | UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON | NATIONAL CANCER INSTITUTE | 2019 to 2023 |
Source NIH RePORTER
Trial comparisons8
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
| Comparison | Source |
|---|---|
| CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents vs Texas Education Agency Required Tobacco Prevention Program: Number of Students Who Currently Use E-cigarettes | Trial comparisons |
| CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents vs Texas Education Agency Required Tobacco Prevention Program: Number of Students Who Are Susceptible to E-cigarette Use | Trial comparisons |
| CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents vs Texas Education Agency Required Tobacco Prevention Program: Number of Students Who Currently Use E-cigarettes | Trial comparisons |
| CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents vs Texas Education Agency Required Tobacco Prevention Program: Number of Students Who Are Susceptible to E-cigarette Use | Trial comparisons |
| CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents vs Texas Education Agency Required Tobacco Prevention Program: deaths from any cause | Trial comparisons |
CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents vs Texas Education Agency Required Tobacco Prevention Program: Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | Trial comparisons |
CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents vs Texas Education Agency Required Tobacco Prevention Program: Number of Students Who Have Ever Used E-cigarettes in Their Lifetime | Trial comparisons |
| CATCH My Breath (CMB) Program for E-cigarette Prevention Among Adolescents vs Texas Education Agency Required Tobacco Prevention Program: serious adverse events | Trial comparisons |
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/NCT04843501
GET https://conductscience.org/api/trials/v1/NCT04843501/flow?page=2