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Completed Not applicable Interventional Accepts healthy volunteers

Brief Interventions With Text Messaging to Reduce Adolescent Alcohol and Marijuana Use

ClinicalTrials.gov ID: NCT03401333

Public ClinicalTrials.gov record NCT03401333. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 5, 2026, 6:41 PM EST

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Official title

Feasibility of Augmenting Brief Interventions With Text Messaging to Reduce Adolescent Alcohol and Marijuana Use

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study tests the feasibility of an intervention to prevent risky alcohol or marijuana use that adds a 4-week course of tailored text messaging to a brief motivational intervention for 13-18-year-old adolescents.

Study identification

NCT ID
NCT03401333
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Lead sponsor
Yale University
Other
Enrollment
10 participants

Conditions and interventions

Eligibility (public fields only)

Age range
13 Years to 18 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 14, 2017 (Actual)
Primary completion
Jun 6, 2018 (Actual)
Completion
Jun 6, 2018 (Actual)
Last update posted
Oct 23, 2018

2017 – 2018

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Yale New Haven Hospital New Haven Connecticut 06520 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03401333, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 23, 2018 · Synced Nov 5, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03401333 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →