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ClinicalTrials.gov public records Last synced Sep 5, 2026, 7:17 AM EDT

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Showing 1–13 of 13 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Acquired Immunodeficiency Syndrome, HIV
Interventions
Provider Visit Incentive (PVI), Incentive Choice (IC)
Behavioral
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Atlanta, Georgia
Completed Not applicable Interventional

Nurtured in Nature

NCT04146025
Conditions
Postpartum Depression, Pregnancy Related, Environmental Exposure
Interventions
Nature Coach Intervention
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Cell Phone Use While Driving Among High Risk UBI Auto Policy Holders

NCT04587609
Conditions
Distracted Driving, Driving Impaired
Interventions
Free Phone Mounts, Commitment Contract, Personalized Habit Tips, Social Gamification Feedback, "Contest" Financial Incentives
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
1,668 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Physical Activity
Interventions
Social Incentive Gamification, Social Goals through Incentives to Charity, Daily Performance Feedback
Behavioral
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
14 Years and older
Enrollment
779 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Not applicable Interventional Results available

Intermittent Fasting Adherence and Self Tracking

NCT04836312
Conditions
Hypertension, Obesity
Interventions
Soft Commitment Device
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Not applicable Interventional Results available

The STEP 4Life Trial

NCT05069155
Conditions
Alzheimer Disease, At Risk, Alzheimer Disease, Protection Against, Dementia
Interventions
Gamification
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
55 Years to 75 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

The Ku Ola Project: Enhancing Health Promotion Among Native Hawaiian Men.

NCT06964633
Conditions
Health Promotion, Health
Interventions
Kūkākūkā Discussion Sessions
Behavioral
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years and older · Male only
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Honolulu, Hawaii
Conditions
Hypertension, Diabetes, Heart Failure, Ambulatory Difficulty, Mobility Limitation
Interventions
Social Support Gamification
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
50 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Smoking Cessation, Perioperative/Postoperative Complications
Interventions
Intervention1: Contract Agreement, Intervention2: Implementation Intentions
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Suspended Not applicable Interventional Accepts healthy volunteers

The Impact of Group Commitment Contracts on Smoking Cessation and Weight Loss

NCT04224727
Conditions
Smoking Cessation, Weight Loss
Interventions
Group Commitment Contract, Individual Monetary Rewards, Individual Commitment Contract, Information
Behavioral · Other
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
3,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Evanston, Illinois
Completed Not applicable Interventional Accepts healthy volunteers

In It To Quit: Commitment Contracts for Smoking Cessation

NCT02596061
Conditions
Smoking
Interventions
Deposit Contract, Incentives
Behavioral · Other
Lead sponsor
Community Health Center, Inc.
Industry
Eligibility
18 Years and older
Enrollment
311 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Middletown, Connecticut
Completed Not applicable Interventional

Nature and Well-Being Project

NCT04642235
Conditions
Environmental Exposure, Health Behavior, Health, Subjective
Interventions
Nature Nook, Nature Coach, Nature Nook + Nature Coach
Other · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers

BE Intervention for Naloxone Uptake

NCT06064981
Conditions
Harm Reduction
Interventions
Text message nudges, Commitment contract
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
2
States / cities
Philadelphia, Pennsylvania