Trial · NCT00650585
An Effectiveness Trial of Project ALERT
NCT00650585, Not applicable, Completed, Pacific Institute for Research and Evaluation; results first posted 2009-10-21
3 sourcestrials-2026-11-12-0.5.0
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ConductScience Library. An Effectiveness Trial of Project ALERT. Trials, record NCT00650585. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00650585
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Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- An Effectiveness Trial of Project ALERT
- NCT number
- NCT00650585
- Status
- Completed
- Phases
- Not applicable
- Enrollment
- 8,338 participants, actual
- Lead sponsor
- Pacific Institute for Research and Evaluation
- Conditions
- Alcohol Drinking, Smoking, Marijuana Smoking
- Interventions
- Project ALERT
- First posted
- 2008-04-02
- Last updated
- 2013-06-13
- Results first posted
- 2009-10-21
Source ClinicalTrials.gov
Registered outcomes8
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Self-reported 30-day Use of Alcohol | measured approximately 30 days after intervention completed | Students completed an 81-item self-report questionnaire. They were asked on how many days they had used alcohol in the previous 30 days. Response options included "none," "1 or 2 days in the last month," "3 to 5 days in the last month," "6 to 19 days in the last month," and "20 or more days in the last month." Response options were dichotomized into none and at least one day. |
| Primary | Self-reported 30-day Use of Cigarettes | measured approximately 30 days after intervention completed | Students completed an 81-item self-report questionnaire. They were asked on how many days they had smoked cigarettes in the previous 30 days. Response options included "none," "1 or 2 days in the last month," "3 to 5 days in the last month," "6 to 19 days in the last month," and "20 or more days in the last month." Response options were dichotomized into none and at least one day. |
| Primary | Self-reported 30-day Marijuana Use | measured approximately 30 days after intervention completed | Students completed an 81-item self-report questionnaire. They were asked on how many days they had used marijuana in the previous 30 days. Response options included "none," "1 or 2 days in the last month," "3 to 5 days in the last month," "6 to 19 days in the last month," and "20 or more days in the last month." Response options were dichotomized into none and at least one day. |
| Primary | Self-reported 30-day Inhalant Use | measured approximately 30 days after intervention completed | Students completed an 81-item self-report questionnaire. They were asked on how many days they had used inhalants in the previous 30 days. Response options included "none," "1 or 2 days in the last month," "3 to 5 days in the last month," "6 to 19 days in the last month," and "20 or more days in the last month." Response options were dichotomized into none and at least one day. |
| Primary | Self-reported Lifetime Alcohol Use | measured approximately 30 days after intervention completed | Students completed an 81-item self-report questionnaire. To assess lifetime use, we asked if the respondent had ever used alcohol (yes or no). |
| Primary | Self-reported Lifetime Cigarette Use | measured approximately 30 days after intervention completed | Students completed an 81-item self-report questionnaire. To assess lifetime use, we asked if the respondent had ever smoked cigarettes (yes or no). |
| Primary | Self-reported Lifetime Marijuana Use | measured approximately 30 days after intervention completed | Students completed an 81-item self-report questionnaire. To assess lifetime use, we asked if the respondent had ever used marijuana (yes or no). |
| Primary | Self-reported Lifetime Inhalant Use | measured approximately 30 days after intervention completed | Students completed an 81-item self-report questionnaire. To assess lifetime use, we asked if the respondent had ever used inhalants (yes or no). |
Source ClinicalTrials.gov
Outcomes8
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
| Type | Outcome | Time frame | Population | Units | Measured as |
|---|---|---|---|---|---|
| PRIMARY | Self-reported 30-day Use of Alcohol | measured approximately 30 days after intervention completed | Data were cleaned to remove cases with logical inconsistencies which decreased our sample by 3.6% of respondents at pretest and 7.5% at post-test. Missing covariate data were imputed using the Expectation Maximization (EM) algorithm. Missing data were imputed using the EM algorithms implemented in the Missing Value Analysis module in SPSS 13.0. | Participants | NUMBER |
| PRIMARY | Self-reported 30-day Use of Cigarettes | measured approximately 30 days after intervention completed | Data were cleaned to remove cases with logical inconsistencies which decreased our sample by 3.6% of respondents at pretest and 7.5% at post-test. Missing covariate data were imputed using the Expectation Maximization (EM) algorithm. Missing data were imputed using the EM algorithms implemented in the Missing Value Analysis module in SPSS 13.0. | participants | NUMBER |
| PRIMARY | Self-reported 30-day Marijuana Use | measured approximately 30 days after intervention completed | Data were cleaned to remove cases with logical inconsistencies which decreased our sample by 3.6% of respondents at pretest and 7.5% at post-test. Missing covariate data were imputed using the Expectation Maximization (EM) algorithm. Missing data were imputed using the EM algorithms implemented in the Missing Value Analysis module in SPSS 13.0. | participants | NUMBER |
| PRIMARY | Self-reported 30-day Inhalant Use | measured approximately 30 days after intervention completed | Data were cleaned to remove cases with logical inconsistencies which decreased our sample by 3.6% of respondents at pretest and 7.5% at post-test. Missing covariate data were imputed using the Expectation Maximization (EM) algorithm. Missing data were imputed using the EM algorithms implemented in the Missing Value Analysis module in SPSS 13.0. | participants | NUMBER |
| PRIMARY | Self-reported Lifetime Alcohol Use | measured approximately 30 days after intervention completed | Data were cleaned to remove cases with logical inconsistencies which decreased our sample by 3.6% of respondents at pretest and 7.5% at post-test. Missing covariate data were imputed using the Expectation Maximization (EM) algorithm. Missing data were imputed using the EM algorithms implemented in the Missing Value Analysis module in SPSS 13.0. | participants | NUMBER |
| PRIMARY | Self-reported Lifetime Cigarette Use | measured approximately 30 days after intervention completed | Data were cleaned to remove cases with logical inconsistencies which decreased our sample by 3.6% of respondents at pretest and 7.5% at post-test. Missing covariate data were imputed using the Expectation Maximization (EM) algorithm. Missing data were imputed using the EM algorithms implemented in the Missing Value Analysis module in SPSS 13.0. | participants | NUMBER |
| PRIMARY | Self-reported Lifetime Marijuana Use | measured approximately 30 days after intervention completed | Data were cleaned to remove cases with logical inconsistencies which decreased our sample by 3.6% of respondents at pretest and 7.5% at post-test. Missing covariate data were imputed using the Expectation Maximization (EM) algorithm. Missing data were imputed using the EM algorithms implemented in the Missing Value Analysis module in SPSS 13.0. | participants | NUMBER |
| PRIMARY | Self-reported Lifetime Inhalant Use | measured approximately 30 days after intervention completed | Data were cleaned to remove cases with logical inconsistencies which decreased our sample by 3.6% of respondents at pretest and 7.5% at post-test. Missing covariate data were imputed using the Expectation Maximization (EM) algorithm. Missing data were imputed using the EM algorithms implemented in the Missing Value Analysis module in SPSS 13.0. | participants | NUMBER |
Source ClinicalTrials.gov
Results by group16
Each measurement the trial posted, group by group, in the words and numbers it posted.
| Outcome | Group | Category | Value | Spread | Units |
|---|---|---|---|---|---|
| Self-reported 30-day Use of Alcohol | Control Group | 330 | Participants | ||
| Self-reported 30-day Use of Alcohol | Treatment Group | 332 | Participants | ||
| Self-reported 30-day Use of Cigarettes | Control Group | 130 | participants | ||
| Self-reported 30-day Use of Cigarettes | Treatment Group | 144 | participants | ||
| Self-reported 30-day Marijuana Use | Control Group | 130 | participants | ||
| Self-reported 30-day Marijuana Use | Treatment Group | 116 | participants | ||
| Self-reported 30-day Inhalant Use | Control Group | 224 | participants | ||
| Self-reported 30-day Inhalant Use | Treatment Group | 239 | participants | ||
| Self-reported Lifetime Alcohol Use | Control Group | 1236 | participants | ||
| Self-reported Lifetime Alcohol Use | Treatment Group | 1288 | participants |
1 to 10 of 16Source ClinicalTrials.gov
See all 16 results by groupParticipant flow6
How many started, completed or left each group, period by period.
| Period | Milestone | Group | Participants | Units counted |
|---|---|---|---|---|
| Overall Study | STARTED | Control Group | 4,348 | |
| Overall Study | STARTED | Treatment Group | 3,990 | |
| Overall Study | COMPLETED | Control Group | 2,551 | |
| Overall Study | COMPLETED | Treatment Group | 2,513 | |
| Overall Study | NOT COMPLETED | Control Group | 1,797 | |
| Overall Study | NOT COMPLETED | Treatment Group | 1,477 |
Source ClinicalTrials.gov
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 totals6
The totals the trial posted for each group.
| Total | Group | Affected | At risk |
|---|---|---|---|
| Total, all-cause mortality | Control Group | ||
| Total, all-cause mortality | Treatment Group | ||
| Total, other adverse events | Control Group | 0 | 0 |
| Total, other adverse events | Treatment Group | 0 | 0 |
| Total, serious adverse events | Control Group | 0 | 0 |
| Total, serious adverse events | Treatment Group | 0 | 0 |
Source ClinicalTrials.gov
Papers1
The papers the trial lists on ClinicalTrials.gov.
| PMID | Listed as |
|---|---|
| 19581545 | RESULT |
Source PubMed
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 comparisons8
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
| Comparison | Source |
|---|---|
| Treatment Group vs Control Group: Self-reported Lifetime Inhalant Use | Trial comparisons |
| Treatment Group vs Control Group: Self-reported 30-day Inhalant Use | Trial comparisons |
| Treatment Group vs Control Group: Self-reported Lifetime Alcohol Use | Trial comparisons |
| Treatment Group vs Control Group: Self-reported 30-day Use of Alcohol | Trial comparisons |
| Treatment Group vs Control Group: Self-reported Lifetime Marijuana Use | Trial comparisons |
| Treatment Group vs Control Group: Self-reported 30-day Use of Cigarettes | Trial comparisons |
| Treatment Group vs Control Group: Self-reported 30-day Marijuana Use | Trial comparisons |
| Treatment Group vs Control Group: Self-reported Lifetime Cigarette Use | 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/NCT00650585
GET https://conductscience.org/api/trials/v1/NCT00650585/registered