Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 2, 2026, 3:45 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–7 of 7 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
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

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
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
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 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

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

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