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Showing 1–24 of 66 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Vulnerable Populations Clear all
Completed Not applicable Interventional

Habit Building Software Application to Increase Engagement of Vulnerable Populations in the National Diabetes Prevention Program (NDPP) Lifestyle Change Program (LCP)

NCT06656273
View directory record Official record
Conditions
Prediabetes
Interventions
FT LCP
Behavioral
Lead sponsor
The Institute for Iterative Thinking
Industry
Eligibility
18 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Felton, California
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Citizen Science Expansion Project

NCT05548803
View directory record Official record
Conditions
Covid19
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
52,351 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
9
States / cities
Sacramento, California • San Francisco, California • Downers Grove, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 22, 2026, 5:02 PM 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, 5:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Addressing Social Determinants of Health & Diabetes Self-Management in Vulnerable Populations

NCT03802825
View directory record Official record
Conditions
Diabetes
Interventions
Diabetes Self-Management Training, Standard Patient Navigation
Behavioral · Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 28, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Active, not recruiting Phase 2 Interventional Results available

Isa-Pom-Dex in Elderly/Frail Subjects With RRMM

NCT05911321
View directory record Official record
Conditions
Multiple Myeloma, Relapse, Refractory, Aging, Co-morbidity
Interventions
Isatuximab, Pomalidomide, Dexamethasone
Drug
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational Results available

Impact of Medicaid Health Home on Patients With Diabetes in New York City

NCT02713321
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Not listed
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
96,759 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Jul 22, 2026, 5:02 PM 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, 5:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

BioImage Study: A Clinical Study of Burden of Atherosclerotic Disease in an At-Risk Population

NCT00738725
View directory record Official record
Conditions
Plaque, Atherosclerotic Disease, Heart Disease, Stroke
Interventions
Not listed
Lead sponsor
BG Medicine, Inc
Industry
Eligibility
55 Years to 80 Years
Enrollment
7,687 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
2
States / cities
Oakland Park, Florida • Justice, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 26, 2015 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational

Improving Lung Cancer Screening Adherence by Overcoming Barriers for Vulnerable Populations

NCT04969341
View directory record Official record
Conditions
Lung Carcinoma
Interventions
Survey Administration, Electronic Health Record Review
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
Not listed
Enrollment
947 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 19, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Not listed Not applicable Interventional

HIV Medication Adherence in Underserved Populations

NCT02392884
View directory record Official record
Conditions
Human Immunodeficiency Virus, Acquired Immunodeficiency Syndrome
Interventions
Cognitive Rehabilitation
Behavioral
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 18, 2015 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Minor Increase Over Minimal Risk Research in NICU

NCT02482012
View directory record Official record
Conditions
Infant, Premature, Infant, Late, Infant, Preterm, Infant
Interventions
Survey
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Feb 24, 2016 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Project 2, Study 2: Extended Exposure to Low Nicotine Content Cigarettes in Opioid Abusers

NCT02250664
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Very low nicotine content cigarettes
Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 70 Years
Enrollment
775 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Nov 30, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional

A Pilot Study to Examine the Impact of a Therapy Dog Intervention on Loneliness and Related Health Outcomes in Vulnerable Populations

NCT05089201
View directory record Official record
Conditions
Loneliness, Depression, Anxiety, Quality of Life
Interventions
Animal-assisted interaction, Conversational control
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Project 3, Study 2: Extended Exposure to Low Nicotine Content Cigarettes in People With Current Affective Disorders

NCT02232737
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Very low nicotine content cigarettes
Other
Lead sponsor
Brown University
Other
Eligibility
18 Years to 70 Years
Enrollment
775 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Providence, Rhode Island • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Dec 6, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Recruiting Phase 2 Interventional

Isa-Rd for Frail and/or Much Older Patients With Newly Diagnosed Multiple Myeloma

NCT05145400
View directory record Official record
Conditions
Multiple Myeloma, Cancer
Interventions
Isatuximab, Lenalidomide, Dexamethasone
Drug
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2033
U.S. locations
5
States / cities
Chapel Hill, North Carolina • Charlotte, North Carolina • Durham, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional

Improving Advance Care Planning by Preparing Diverse Seniors for Decision Making

NCT01990235
View directory record Official record
Conditions
Chronic Disease
Interventions
PREPARE Intervention
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
55 Years and older
Enrollment
541 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 2Phase 3 Interventional

Peer-driven Intervention to Seek, Test & Treat Heterosexuals at High Risk for HIV

NCT01607541
View directory record Official record
Conditions
HIV/AIDS
Interventions
BCAP peer-driven intervention (PDI), Control intervention
Behavioral
Lead sponsor
New York University
Other
Eligibility
18 Years to 60 Years
Enrollment
3,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 2, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Data2Action Oregon Project: Supporting Data-driven Decision-Making for Substance Use Services, Policy, and Overdose Prevention

NCT06852170
View directory record Official record
Conditions
Substance Abuse, Decision Making, Shared, Implementation Science, Decision Making, Organizations, Substance-related Disorders, Policy
Interventions
Co-Design Sessions (CDS), Data products
Other
Lead sponsor
Chestnut Health Systems
Other
Eligibility
18 Years and older
Enrollment
341 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Results available

Small Financial Incentives to Promote Smoking Cessation

NCT02737566
View directory record Official record
Conditions
Smoking Cessation
Interventions
Standard Care + Financial Incentives, Standard Care
Behavioral · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Not listed No phase listed Observational

Caring for the Whole Person

NCT03034369
View directory record Official record
Conditions
Behavioral Health
Interventions
Access to Care, Depression Screening, Patient-Provider Relationship, Patient-Clinic Interactions, Stigma, Provider Continuity, Symptom Severity, Diagnoses, Social support, Preventive Screening, Inpatient Hospitalization Utilization, Inpatient Readmissions, Post-Admission follow-up
Other
Lead sponsor
Providence Health & Services
Other
Eligibility
18 Years and older
Enrollment
6,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low Nicotine Content Cigarettes in Vulnerable Populations: Women of Reproductive Age

NCT04092387
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Varying the nicotine content of cigarettes, E-Cigarettes
Other
Lead sponsor
University of Vermont
Other
Eligibility
21 Years to 44 Years · Female only
Enrollment
326 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Mar 17, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

NIRS Monitoring in the NICU and AKI

NCT07222722
View directory record Official record
Conditions
Acute Kidney Injury (AKI), Postnatal AKI
Interventions
NIRS Monitoring
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
24 Weeks to 30 Weeks
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Impact of Exogenous Ketones on Sleep Apnea

NCT06687655
View directory record Official record
Conditions
Obstructive Sleep Apnea, Sleep
Interventions
Ketone-IQ, Placebo
Dietary Supplement
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 9, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

Sexual Health Empowerment for Women's Health

NCT03984695
View directory record Official record
Conditions
Cervical Cancer, Breast Cancer, Contraceptive Usage, Sexually Transmitted Diseases
Interventions
SHE-WOMEN
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
279 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jul 22, 2026, 5:02 PM EDT