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Showing 1–24 of 671 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional

RETAIN Kentucky Impact Evaluation

NCT05173350
View directory record Official record
Conditions
Disability
Interventions
RETAIN KY, Active Comparator
Other
Lead sponsor
Mathematica Policy Research, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
3,153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Personalized Behavioral Intervention for Older Adults With Musculoskeletal Pain and Sleep Complaints

NCT03921840
View directory record Official record
Conditions
Sleep, Pain
Interventions
ELDERFITNESS, Control
Behavioral · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
60 Years to 85 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 3, 2022 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Mobile Enhanced Prevention Support for People Leaving Jail

NCT04036396
View directory record Official record
Conditions
HIV Infections, Sexually Transmitted Diseases, Bacterial, Hepatitis C, Substance Use Disorders
Interventions
Mobile Enhanced Prevention Support, Usual Care plus Customized Referrals
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 49 Years · Male only
Enrollment
233 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
3
States / cities
Los Angeles, California • Santa Fe Springs, California
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fruits and Vegetables Incentives Study

NCT04235413
View directory record Official record
Conditions
Obesity, Fruit and Vegetable Intake, Healthy Diet
Interventions
Real-Time Incentives Group
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
244 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 11, 2023 · Synced Sep 2, 2026, 10:29 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The BEACH Interview Study- Pregnant and Breastfeeding Mothers

NCT03036696
View directory record Official record
Conditions
Pediatric Obesity, Recruitment
Interventions
Pregnant Mothers Interview, Breastfeeding Mothers Interview
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 11, 2019 · Synced Sep 2, 2026, 10:29 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Pharmaceutically-Enhanced Reinforcement for Reduced Alcohol and Smoking

NCT05181891
View directory record Official record
Conditions
Alcohol Use Disorder (AUD), Nicotine Use Disorder
Interventions
Contingency Management, Non-contingent control
Behavioral
Lead sponsor
Washington State University
Other
Eligibility
18 Years and older
Enrollment
205 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

SNAP Fruit and Vegetable Incentive Program Digital Promotions for Farmers' Markets

NCT04458350
View directory record Official record
Conditions
Fruit and Vegetable Intake, Healthy Diet, Food Insecurity
Interventions
Digital Promotions Group
Behavioral
Lead sponsor
Tufts University
Other
Eligibility
18 Years and older
Enrollment
251,966 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 27, 2020 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Results available

Steps to Eliminate Postoperative Problems

NCT02880176
View directory record Official record
Conditions
Bladder Cancer
Interventions
Financial Incentive to Increase Ambulation
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 8, 2021 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Contingency Management for Smoking Cessation

NCT04881630
View directory record Official record
Conditions
Smoking Cessation
Interventions
Automated Mobile Contingency Management (CM), Standard Care (SC)
Behavioral · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
532 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Internet Assisted Obesity Treatment Enhanced With Financial Incentives

NCT02688621
View directory record Official record
Conditions
Obesity
Interventions
Internet Only, Internet + Incentives
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
418 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Columbia, South Carolina • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Use of Incentives for Stressful Medical Procedures

NCT06254898
View directory record Official record
Conditions
Healthy
Interventions
Child life standard of care, Child life standard of care + incentives provided with conditional agreement., Child life standard of care + incentive provided unconditionally.
Behavioral
Lead sponsor
Jennifer Staab, MS, CCLS
Other
Eligibility
6 Years to 17 Years
Enrollment
186 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
3
States / cities
Aurora, Colorado • Broomfield, Colorado • Highlands Ranch, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Does Preference-based HIV Testing Increase Uptake in High Risk Populations?

NCT02714140
View directory record Official record
Conditions
HIV Testing
Interventions
PB-HCT ++, Economic incentive, SMS Reminder
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
1,194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Durham, North Carolina • Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 17, 2021 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Results available

Use of Behavioral Economics in Repeat SARS-CoV-2 (COVID-19) Antibody Testing in Disadvantaged Communities

NCT04901624
View directory record Official record
Conditions
SARS-CoV-2
Interventions
Family Risk Messaging, Personal Risk Messaging, Loss Protection, Lottery Incentive
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
5 Years and older
Enrollment
2,164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 13, 2024 · Synced Sep 2, 2026, 10:29 PM EDT
Recruiting No phase listed Observational

Comparing Use of Incentive Spirometry With and Without Reminder

NCT06101030
View directory record Official record
Conditions
Post Operative
Interventions
Signal On
Device
Lead sponsor
Tidal Medical Technologies
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
3
States / cities
Silver Spring, Maryland • Rochester, Minnesota • New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Sep 2, 2026, 10:29 PM EDT
Withdrawn Phase 3 Interventional

Vitality Health Incentives for Physical Activity

NCT01277367
View directory record Official record
Conditions
Obesity
Interventions
Discovery Vitality base program, Communication, Charitable Incentive, Prize Draw Incentive, Direct Payment, Free Choice
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 18, 2016 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Trial of Using SmokeBeat to Monitor and Increase Smoking Abstinence in Pregnant Women

NCT03209557
View directory record Official record
Conditions
Tobacco Use Cessation, Pregnancy Related
Interventions
SmartWatch SmokeBeat Application
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced Sep 2, 2026, 10:29 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Ohio State University (OSU) SCREEN Community Program

NCT06666192
View directory record Official record
Conditions
Breast Carcinoma, Cervical Carcinoma, Colorectal Carcinoma
Interventions
Cancer Screening, Discussion, Educational Activity, Educational Intervention, Focus Group, Health Care Delivery, Health Promotion, Health Promotion and Education, Health Risk Assessment, Implementation, Informational Intervention, Internet-Based Intervention, Interview, Outreach, Patient Navigation, Survey Administration
Other · Behavioral · Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
Not listed
Enrollment
2,067 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

COVID-19 Booster Incentives

NCT05648773
View directory record Official record
Conditions
Booster Message, Booster Message + Financial Incentive
Interventions
Messaging, Financial Incentive, Placebo
Behavioral · Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
57,893 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Martinez, California
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Sep 2, 2026, 10:29 PM EDT
Withdrawn Not applicable Interventional

Inpatient ICOUGH RECOVERY App Version 2.0

NCT03599037
View directory record Official record
Conditions
Post Operative Complications, Pneumonia
Interventions
ICOUGH Recovery App v2.0
Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Results available

A Pilot Randomized Controlled Trial of Financial Incentives, Text Messaging, and Usual Care for Homeless Smokers

NCT02565381
View directory record Official record
Conditions
Smoking
Interventions
Transdermal nicotine patch, In-person smoking cessation counseling, Contingent financial rewards for smoking abstinence, Text messages to support smoking abstinence
Drug · Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 13, 2017 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Results available

Prolonged Exposure Therapy for PTSD and Opioid Use Disorder

NCT04104022
View directory record Official record
Conditions
Post Traumatic Stress Disorder, Opioid-use Disorder
Interventions
Prolonged Exposure Therapy, Attendance-based monetary incentives
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 2, 2026, 10:29 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Incentive Processing and Learning in Anorexia Nervosa and Bulimia Nervosa

NCT05056597
View directory record Official record
Conditions
Anorexia Nervosa, Bulimia Nervosa
Interventions
Not listed
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 39 Years · Female only
Enrollment
252 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Sep 2, 2026, 10:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Smartphone-based Financial Incentives

NCT03922360
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Smartphone-based Financial Incentives, Best Practices
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 2, 2026, 10:29 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Oklahoma Study of Native American Pain Risk IV: Smoking Cessation and Pain

NCT07080788
View directory record Official record
Conditions
Smoking Cessation Intervention, Pain, Smoking (Tobacco) Addiction
Interventions
Smoking Cessation
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 2, 2026, 10:29 PM EDT