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Showing 1–16 of 16 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Bystander Behavior Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Experimentally Testing the Effectiveness of a Campus-based Bystander Intervention

NCT02083302
View directory record Official record
Conditions
Assaultive Behavior, Violence, Sexual Assault and Rape, Helping Behavior
Interventions
SCREAM Theater Dose 1, SCREAM Theater Doses 2 & SCREAM Theater Dose 3, SCREAM Theater Dose 4
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 21 Years
Enrollment
4,385 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 10, 2014 · Synced Sep 2, 2026, 2:15 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Evaluating a Video Bystander Program for First-Year College Students

NCT03056560
View directory record Official record
Conditions
Bystander Behavior
Interventions
TakeCARE (video bystander program)
Behavioral
Lead sponsor
Southern Methodist University
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 2, 2018 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Middle School Teacher Module for a Brief Bullying Intervention Program

NCT06017752
View directory record Official record
Conditions
Bullying
Interventions
STAC Teacher Module
Behavioral
Lead sponsor
Boise State University
Other
Eligibility
21 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Boise, Idaho
Source: ClinicalTrials.gov public record
Updated Sep 30, 2024 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Promoting Prosocial Bystander Behavior in Intoxicated Men: Evaluation of RealConsent2.0

NCT04912492
View directory record Official record
Conditions
Alcohol Intoxication, Sexual Violence, Helping Behavior
Interventions
RealConsent1.0, RealConsent2.0, Stress Management, Alcohol intoxication, No-Alcohol Placebo
Behavioral
Lead sponsor
Georgia State University
Other
Eligibility
21 Years to 25 Years
Enrollment
667 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
2
States / cities
Atlanta, Georgia • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of the Safer Bars Prevention Program for Sexual Assault

NCT04141839
View directory record Official record
Conditions
Sexual Assault Precursor Behavior
Interventions
Safer Bars
Behavioral
Lead sponsor
Mary Koss
Other
Eligibility
19 Years and older
Enrollment
681 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Pilot of Bystander Training Programming in Sexual Violence and Subtance Abuse

NCT02591212
View directory record Official record
Conditions
Sexual Violence
Interventions
Green Dot, Wellness Initiatives for Student Empowerment
Behavioral
Lead sponsor
University of Kentucky
Other
Eligibility
18 Years to 24 Years
Enrollment
427 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 25, 2016 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Middle School Parent Module for a Brief Bullying Intervention Program

NCT06002347
View directory record Official record
Conditions
Bullying
Interventions
STAC Parent Module for Middle School
Behavioral
Lead sponsor
Boise State University
Other
Eligibility
21 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Boise, Idaho
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bystander Intervention for Hazardous Drinking

NCT06543342
View directory record Official record
Conditions
Hazardous Behavior, Alcohol Consequences
Interventions
Bystander Brief Motivational Intervention
Behavioral
Lead sponsor
Brown University
Other
Eligibility
17 Years and older
Enrollment
187 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Aug 15, 2024 · Synced Sep 2, 2026, 2:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Multi-College Bystander Efficacy Evaluation

NCT02659423
View directory record Official record
Conditions
Sexual Violence
Interventions
BIC 1, BIC 2, BIC 3
Behavioral
Lead sponsor
Ann Coker
Other
Eligibility
18 Years to 24 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Mar 14, 2021 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Using VR to Assess the Efficacy of a Motivational Interviewing Intervention to Increase Bystander Behaviors

NCT04160702
View directory record Official record
Conditions
Sexual Assault
Interventions
Motivate-The-Bystander (MTB)
Behavioral
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
18 Years to 25 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Mar 18, 2021 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Online Bullying Bystander Intervention for Middle Schools Phase II

NCT05572398
View directory record Official record
Conditions
Adolescent, Bullying, Technology, Mental Health
Interventions
STAC-T
Behavioral
Lead sponsor
Klein Buendel, Inc.
Industry
Eligibility
11 Years and older
Enrollment
613 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
2
States / cities
Boise, Idaho • University, Mississippi
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

ConnectEd: A Randomized Controlled Trial Connecting Through Educational Training

NCT02786472
View directory record Official record
Conditions
Sexual Violence
Interventions
Online Bystander Training, Online Substance Abuse Training, In-Person Bystander Training, In-Person Combination Training
Behavioral
Lead sponsor
Heather Bush
Other
Eligibility
17 Years to 24 Years
Enrollment
3,178 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 23, 2020 · Synced Sep 2, 2026, 2:15 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

EAT: A Reliable Eating Assessment Technology for Free-living Individuals

NCT06118528
View directory record Official record
Conditions
Wearable Electronic Device
Interventions
Blur Obfuscation, Cartoon Obfuscation, Edge Obfuscation, No Obfuscation (raw)
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 2, 2026, 2:15 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Motivations, Attitudes, and Perceptions Study

NCT05873413
View directory record Official record
Conditions
Alcohol Drinking, Sexual Violence, Social Norms
Interventions
Motivate-the-Bystander, Motivate-the-Bystander+Alcohol, Attention-only Control
Behavioral
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
18 Years to 25 Years
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

In-School Evaluation of Bystander: A Game-Based Intervention for Sexual Violence Prevention

NCT02919098
View directory record Official record
Conditions
Bystander Behavioral Intentions
Interventions
Bystander, a game-based bystander intervention program, Infection City, a game-based program about meningitis
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
13 Years to 19 Years
Enrollment
601 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Sep 2, 2026, 2:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Translating an In-Person Brief, Bystander Bullying Intervention (STAC) to a Technology-Based Intervention

NCT04681495
View directory record Official record
Conditions
Bullying of Child, Bullying
Interventions
STAC
Behavioral
Lead sponsor
Klein Buendel, Inc.
Industry
Eligibility
11 Years to 80 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
2
States / cities
Golden, Colorado • Boise, Idaho
Source: ClinicalTrials.gov public record
Updated Jun 22, 2021 · Synced Sep 2, 2026, 2:15 AM EDT