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Showing 1–24 of 163 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Social Networks Clear all
Completed Not applicable Interventional Results available

Improving Adherence to Web-Based Cessation Programs: A Social Network Approach

NCT01544153
View directory record Official record
Conditions
Smoking Cessation
Interventions
WEB, Social Network, Nicotine Replacement Therapy (NRT)
Behavioral
Lead sponsor
Truth Initiative
Other
Eligibility
18 Years and older
Enrollment
5,292 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Nov 12, 2017 · Synced Jul 22, 2026, 10:08 AM EDT
Completed No phase listed Observational

Mediators of Atherosclerosis in South Asians Living in America (MASALA) Social Network Study

NCT02268513
View directory record Official record
Conditions
Atherosclerosis
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
40 Years and older
Enrollment
775 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
2
States / cities
San Francisco, California • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 20, 2018 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Community Network-driven COVID-19 Testing and Vaccination of Vulnerable Populations in the Central US

NCT04743908
View directory record Official record
Conditions
Covid19
Interventions
Social Network Strategy + COVID-19 messaging
Other
Lead sponsor
University of Chicago
Other
Eligibility
15 Years and older
Enrollment
1,328 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 9, 2024 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Enhancing Housing First Programs With a Social Network Substance Use Intervention

NCT02140359
View directory record Official record
Conditions
Alcohol Drinking, Drug Abuse, HIV
Interventions
Motivational Network Interview
Behavioral
Lead sponsor
RAND
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
2
States / cities
Los Angeles, California • Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Nov 23, 2017 · Synced Jul 22, 2026, 10:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

ID and Testing Via Friendship Networks

NCT00841360
View directory record Official record
Conditions
Asymptomatic HIV, HIV Infections
Interventions
Index Recruiter, Friendship Network Member
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
13 Years to 24 Years · Female only
Enrollment
535 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
3
States / cities
Miami, Florida • Chicago, Illinois • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 27, 2017 · Synced Jul 22, 2026, 10:08 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Mobilizing Social Network Resources for HIV Care Support

NCT05123274
View directory record Official record
Conditions
HIV Infections
Interventions
Social Support Mobilization, Individual Care Counseling
Behavioral
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older · Male only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Jul 22, 2026, 10:08 AM EDT
Not yet recruiting Not applicable Interventional

Combining Social Network Strategies and Routine Substance Use Screening

NCT07414459
View directory record Official record
Conditions
HIV, Substance Use Disorder (SUD)
Interventions
Substance use disorder screening, Social network intervention
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Male only
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing the Efficacy of an Online Social Network Intervention to Increase Social Support for Physical Activity

NCT01421758
View directory record Official record
Conditions
Cardiovascular Disease, Cancer, Obesity
Interventions
online social network enrollment plus education and self monitoring, Web education control
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
17 Years to 24 Years · Female only
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 18, 2016 · Synced Jul 22, 2026, 10:08 AM EDT
Active, not recruiting Not applicable Interventional

Increasing PrEP Use in High-Risk Social Networks of African-American MSM in Underserved Low-Risk Cities

NCT03823209
View directory record Official record
Conditions
Human Immunodeficiency Virus
Interventions
Social Network, Brief HIV Prevention Counseling
Behavioral
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
16 Years and older · Male only
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
2
States / cities
Cleveland, Ohio • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 18, 2025 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional

Examining How a Facilitated Self-Sampling Intervention and Testing Navigation Intervention Influences COVID-19 Testing

NCT05606016
View directory record Official record
Conditions
COVID-19
Interventions
Facilitated Self-Sampling Intervention (FSSI), Testing Navigation Intervention (TNI)., Control
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
1,232 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
3
States / cities
Brownsville, Texas • Houston, Texas • Tyler, Texas
Source: ClinicalTrials.gov public record
Updated Jun 30, 2025 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Community Resilience Learning Collaborative and Research Network

NCT03977844
View directory record Official record
Conditions
Depression, Social Stress, Anxiety, Quality of Life, Disaster
Interventions
Technical Assistance, Community Engagement and Planning, Community Resources (CR), Community Resources + eBT
Other
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years and older
Enrollment
258 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated May 23, 2021 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Enhanced Internet Behavior Therapy for Treating Obesity

NCT00212238
View directory record Official record
Conditions
Obesity
Interventions
internet behavioral weight loss program
Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
21 Years to 60 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 17, 2010 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Network & Dyad HIV Prevention Intervention for IDU's - 1

NCT00218335
View directory record Official record
Conditions
HIV, Hepatitis
Interventions
Intervention Condition, Control Condition
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 75 Years
Enrollment
1,024 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 17, 2013 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Building Social Networks to Enhance Postpartum Weight Loss and Appropriate Infant Feeding Practices

NCT01081340
View directory record Official record
Conditions
Obesity
Interventions
Social network building intervention, Home visit
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 12, 2018 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Social Network Weight Loss Intervention

NCT04273503
View directory record Official record
Conditions
Diet, Healthy, Weight Loss
Interventions
Mentoring/educational session
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 29, 2021 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Social Network Analysis to Identify Community Health Workers

NCT04210024
View directory record Official record
Conditions
Type2 Diabetes
Interventions
Diabetes Empowerment Education Program
Other
Lead sponsor
Brittany L Smalls
Other
Eligibility
18 Years to 99 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
2
States / cities
Hyden, Kentucky • Stinnett, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 2, 2024 · Synced Jul 22, 2026, 10:08 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Improving Health Equity for COVID-19 Vaccination for At-risk Populations Using Online Social Networks

NCT04779827
View directory record Official record
Conditions
Vaccination Refusal, Covid19, Heart Diseases
Interventions
Online Social Network and Collective Intelligence Intervention, Independent Control
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
4,476 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional

Adolescents Living With HIV (ALWH): Social Networks, Adherence and Retention

NCT04077047
View directory record Official record
Conditions
HIV/AIDS
Interventions
iEngage
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
15 Years to 21 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Jul 22, 2026, 10:08 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Taxi STEP (Social Networks, Technology, and Exercise Through Pedometers)

NCT03010163
View directory record Official record
Conditions
Physical Conditioning
Interventions
Health Fair, Pedometer, Text Messaging, Social Network Support
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
21 Years and older · Male only
Enrollment
290 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional

Study of Peer Relationships at School

NCT01011764
View directory record Official record
Conditions
Autism
Interventions
SKILLS vs ENGAGE
Behavioral
Lead sponsor
Health Resources and Services Administration (HRSA)
Federal
Eligibility
7 Years to 12 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
5
States / cities
Los Angeles, California • Tallahassee, Florida • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 15, 2012 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional

Motivational Interviewing Integrated With Social Network Counseling for Teens

NCT01922947
View directory record Official record
Conditions
Substance Use
Interventions
Motivational Interviewing w/Social Network Counseling, Active Control Condition
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
14 Years to 18 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 11, 2017 · Synced Jul 22, 2026, 10:08 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate Community-Based Measures to Increase RSV Vaccine Use Among Latino Adults

NCT07171164
View directory record Official record
Conditions
Older Adults Without Any Specific Clinical Condition, Social Networks, RSV Immunization, Vaccine Uptake
Interventions
Motivate Aim: CHW text message reminders and counseling, Motivate Aim: CHW text message reminders only, Activate Aim: CHW text message reminders and counseling, Activate Aim: CHW text message reminders only
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Jul 22, 2026, 10:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Strengthening Adolescent-Adult Networks to Reduce Youth Violence

NCT05185453
View directory record Official record
Conditions
Violence in Adolescence, Social Interaction, Coping Skills, Adolescent Behavior
Interventions
Strengthening Connections for Change, Job Readiness Training
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
13 Years and older
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 22, 2024 · Synced Jul 22, 2026, 10:08 AM EDT
Recruiting Not applicable Interventional

Reducing Parental Substance Use and Enhancing Family Resilience Among Rural Families Through Ohio START

NCT07278427
View directory record Official record
Conditions
Substance Use Disorder (SUD), Rural Health, Family Resilience, Child Maltreatment, Child Well-beiing, Substance Use Recovery
Interventions
Ohio START (Ohio Sobriety, Treatment, and Reducing Trauma)
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Jul 22, 2026, 10:08 AM EDT