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Showing 1–17 of 17 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Reinforcement learning message delivery Clear all
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Family Matters Intervention

NCT02669797
View directory record Official record
Conditions
Childhood Obesity, Cardiovascular Disease Prevention
Interventions
In-home Visits and Food Preparation Activities, Ecological Momentary Intervention, Feedback on Video-recorded Family Meals, Maintenance
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
5 Years to 10 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
2
States / cities
Aurora, Colorado • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Adaptive Messaging to Support Depression Self-Management

NCT06458192
View directory record Official record
Conditions
Depression
Interventions
Adaptive Messaging Intervention, Non-Adaptive Messaging Intervention, Psychoeducation-Only Control
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional Results available

Reinforcement Learning in Diabetes Mellitus Trial

NCT04473326
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Medication Adherence
Interventions
Reinforcement Learning
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 84 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Evaluating a Web Delivered Behavioral Parent Training Intervention for Rural Parents of Children With Autism Spectrum Disorder

NCT05554198
View directory record Official record
Conditions
Autism Spectrum Disorder, Parenting, Parenting Intervention
Interventions
Attend Behavior Parent Training
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
2 Years to 11 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The YourMove Study: Optimizing Individualized and Adaptive mHealth Interventions Via Control Systems Engineering Methods

NCT05598996
View directory record Official record
Conditions
Inactivity, Physical, Sedentary Behavior
Interventions
COT-Based Intervention
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
25 Years to 80 Years
Enrollment
386 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Intern Health Study 2026

NCT07685925
View directory record Official record
Conditions
Depression / Major Depressive Disorder, Mood, Sleep, Physical Activity
Interventions
Intern Health Study behavioral change mobile notification
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Piloting a Reinforcement Learning Tool for Individually Tailoring Just-in-time Adaptive Interventions

NCT05751993
View directory record Official record
Conditions
Overweight and Obesity, Overweight, Obesity
Interventions
ADAPT
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Parent Training for Parents of Toddlers Born Very Premature:

NCT05217615
View directory record Official record
Conditions
Parenting, Problem Behavior, Premature Birth, Parenting Intervention
Interventions
ezParent, Coaching calls, Active Control
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
20 Months and older
Enrollment
452 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
3
States / cities
Chicago, Illinois • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Active, not recruiting No phase listed Observational

Precision Nudging for Hypertension Management: Observational Study

NCT06354192
View directory record Official record
Conditions
Hypertension
Interventions
Precision Nudging for Hypertension Management
Behavioral
Lead sponsor
Lirio
Industry
Eligibility
18 Years and older
Enrollment
12,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Greensboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Refinement and Adaption of Reinforcement Learning to Personalize Behavioral Messaging for Healthy Habits

NCT05742685
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Medication Adherence
Interventions
Reinforcement Learning
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 84 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Improving Behavioral Health for Caregivers and Children After Pediatric Injury

NCT06856057
View directory record Official record
Conditions
Quality of Life, PTSD, Depression Not Otherwise Specified, Child Externalizing Behavior
Interventions
Caregivers' Aid to Accelerate Recovery after pediatric Emergencies (CAARE)
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
348 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
4
States / cities
Los Angeles, California • Lexington, Kentucky • Ann Arbor, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Mobile App to Increase Physical Activity in Students

NCT04440553
View directory record Official record
Conditions
Mobile Health, Physical Activity, Exercise, Mood, Machine Learning
Interventions
Uniform random message delivery, Reinforcement learning message delivery
Behavioral
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years to 65 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2020 · Synced Sep 3, 2026, 5:37 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Intern Health Study 2025

NCT07052357
View directory record Official record
Conditions
Depression - Major Depressive Disorder, Mood, Sleep, Physical Activity
Interventions
Intern Health Study behavioral change mobile notification
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Healthy Eating Education for Latinos

NCT04724382
View directory record Official record
Conditions
Diet, Healthy, Diet Habit, Obesity, Blood Pressure, Psychological
Interventions
Culturally tailored healthy eating advice, Standard healthy eating advice
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
25 Years to 65 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 25, 2023 · Synced Sep 3, 2026, 5:37 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Social Media and Risk-reduction Training for Preterm Infant Care Practices

NCT07420686
View directory record Official record
Conditions
Safe Sleep Education, SUID, Sudden Infant Death Syndrome (SIDS)
Interventions
Safe Sleep NICU Quality Improvement Campaign, Shared Reading NICU Quality Improvement Campaign, Safe Sleep TodaysNICUBaby videos and messages, Shared Reading TodaysNICUBaby videos and messages
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
13 Years and older · Female only
Enrollment
1,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2028
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Culturally Optimized Messages for Latinos

NCT05589740
View directory record Official record
Conditions
Diet, Healthy, Diet Habit, Obesity, Blood Pressure, Psychological
Interventions
Culturally tailored healthy eating advice, Standard healthy eating advice
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
25 Years to 65 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Sep 3, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Stay Well at Home: a Text-messaging Study Social Distancing

NCT04473599
View directory record Official record
Conditions
Depressive Symptoms, Anxiety, COVID-19
Interventions
Uniform random message delivery, Reinforcement learning message delivery, Mood ratings only
Behavioral
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated May 22, 2023 · Synced Sep 3, 2026, 5:37 PM EDT