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Showing 1–24 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Reduced intervention letter Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Family Access to Dentist Study

NCT02395120
View directory record Official record
Conditions
Dental Caries
Interventions
Standard letter, Intervention letter, Reduced intervention letter, DIG, Reduced DIG
Behavioral
Lead sponsor
Case Western Reserve University
Other
Eligibility
5 Years to 10 Years
Enrollment
1,305 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
2
States / cities
Cleveland, Ohio • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 15, 2022 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional

Phone Interview to Prevent Recurring Opioid Overdoses

NCT02282306
View directory record Official record
Conditions
Overdose, Opioid-related Disorders, Drug Addiction, Drug Abuse, Substance Abuse, Opioid Use, Unspecified, Opioid Dependence, Drug Overdose
Interventions
TTIP-PRO
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 27, 2015 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional

Controlled Evaluation of a Computerized Anger-reduction Treatment for Suicide Prevention

NCT01918696
View directory record Official record
Conditions
Anger, Suicidal Ideation
Interventions
Anger Reduction Treatment, Progressive Muscle Relaxation, Control Condition
Behavioral
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jan 28, 2021 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Mood in Assisted Living Settings

NCT01763216
View directory record Official record
Conditions
Depressive Symptoms, Clinical Depression
Interventions
Road Tour, Boatload of Crosswords
Other
Lead sponsor
Marianne Smith
Other
Eligibility
55 Years and older
Enrollment
351 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2020
U.S. locations
32
States / cities
Amana, Iowa • Bettendorf, Iowa • Carlisle, Iowa + 17 more
Source: ClinicalTrials.gov public record
Updated Nov 8, 2020 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Results available

Encouraging Flu Vaccination Among High-Risk Patients Identified by ML

NCT04323137
View directory record Official record
Conditions
Influenza, Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Risk reduction, Medical records-based recommendation, Algorithm-based recommendation
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
17 Years and older
Enrollment
117,649 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 29, 2024 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional

Promoting Cholesterol Screening

NCT01930149
View directory record Official record
Conditions
Cardiovascular Diseases, Lipid Testing, Primary Prevention of Cardiovascular Disease
Interventions
Mailed patient outreach intervention
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
35 Years to 75 Years
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
3
States / cities
Flagstaff, Arizona • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 28, 2014 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional

Nudging Flu Vaccination in Patients at Moderately High Risk for Flu and Flu-related Complications

NCT05509283
View directory record Official record
Conditions
Influenza, Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Risk Reduction
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
40,671 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 4, 2022 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Childhood Hearing Loss in Rural Alaska Through a Preschool Screening and Referral Process Using Mobile Health and Telemedicine

NCT03662256
View directory record Official record
Conditions
Hearing Loss
Interventions
Current Primary Care Referral Process, Telemedicine Referral Process
Other
Lead sponsor
Norton Sound Health Corporation
Other
Eligibility
2 Years to 6 Years
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Nome, Alaska
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Study Comparing Two Versions of Group Cognitive-behavioral Indicated Prevention Programs

NCT04111887
View directory record Official record
Conditions
Depressive Symptoms
Interventions
Group-based therapy
Behavioral
Lead sponsor
Oregon Research Institute
Other
Eligibility
18 Years to 28 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 15, 2020 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional

Cholesterol, Hypertension and Glucose Education Study

NCT00815789
View directory record Official record
Conditions
Cardiovascular Disease, Diabetes
Interventions
Tailored cardiovascular risk management (Nurse-administered )
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
362 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 14, 2023 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional

Reducing Environmental Tobacco Smoke in Neonatal Intensive Care Unit (NICU) Infants' Homes

NCT00670280
View directory record Official record
Conditions
Infant Environmental Tobacco Smoke Exposure
Interventions
Motivational Interviewing intervention, Usual Care, Usual Care - Reduced Measurement
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
12 Years and older
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 5, 2016 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mammogram Mail- and Phone-based Interventions

NCT05853848
View directory record Official record
Conditions
Breast Cancer
Interventions
Postcard, Letter, Auto-dialer, Live call
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
51 Years to 74 Years · Female only
Enrollment
14,386 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 9, 2024 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Reducing Colorectal Cancer Death Through Mailed Outreach Screening

NCT02584998
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Mailed-FIT, Screening invitation-reminder
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
50 Years to 74 Years
Enrollment
782 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 23, 2018 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Results available

Using Explainable AI Risk Predictions to Nudge Influenza Vaccine Uptake

NCT05009251
View directory record Official record
Conditions
Influenza, Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Reminder, Risk reduction, Medical records-based recommendation, Algorithm-based recommendation
Behavioral
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
45,061 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 2, 2025 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Emails Promoting Mail-order Pharmacy

NCT04587063
View directory record Official record
Conditions
Health Care Utilization
Interventions
Fear Appeals, Message about Future Healthcare Costs, Endorsement from a Doctor, Comparison Table, Highlighting Cost Savings and Convenience
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
5,266 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced Sep 5, 2026, 11:43 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Reducing Urban Cervical Cancer Disparities

NCT06416150
View directory record Official record
Conditions
Cervical Cancer, Papilloma Viral Infection
Interventions
Stage 1 SOC, Stage 1 HERS, Stage 2 HERS, Stage 2 HERS+HC, Stage 3 SOC, Stage 3 HERS, Stage 3 HERS+HC, Stage 4 HERS, Stage 4 HERS+HC
Behavioral
Lead sponsor
Fox Chase Cancer Center
Other
Eligibility
18 Years to 90 Years · Female only
Enrollment
546 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
3
States / cities
New Brunswick, New Jersey • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Childhood Hearing Loss in an Alaska Native Population Through a New School Screening and Referral Process That Utilizes Mobile Health and Telemedicine

NCT03309553
View directory record Official record
Conditions
Hearing Loss
Interventions
Current Primary Care Referral Process, Telemedicine Referral Process
Other
Lead sponsor
Norton Sound Health Corporation
Other
Eligibility
4 Years to 21 Years
Enrollment
1,481 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Nome, Alaska
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional

Reducing Racial and Ethnic Disparities in Medicare Annual Wellness Visit Uptake

NCT06996366
View directory record Official record
Conditions
Annual Wellness Visit
Interventions
Outreach to encourage Annual Wellness Visit completion
Other
Lead sponsor
Northwestern University
Other
Eligibility
66 Years and older
Enrollment
174 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 5, 2026, 11:43 AM EDT
Active, not recruiting Not applicable Interventional

Impact of Patient-Centered Approach for Communicating Coronary Calcium on Cardiovascular Health

NCT06055972
View directory record Official record
Conditions
Coronary Artery Disease, Cardiovascular Diseases, Smoking
Interventions
Educational Letter Post CT Examination
Other
Lead sponsor
American College of Radiology
Other
Eligibility
50 Years to 80 Years
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Ann Arbor, Michigan • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Web-based Implementation for the Science of Enhancing Resilience Study

NCT02603133
View directory record Official record
Conditions
Burnout, Professional, Resilience, Psychological
Interventions
Three Good Things, Gratitude, Random Acts of Kindess, Awe, 1 Good Chat
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 85 Years
Enrollment
2,650 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
9
States / cities
Palo Alto, California • Stanford, California • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2023 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Reducing Tobacco Use Disparities Among Low-Income Adults

NCT03077737
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Dependence
Interventions
Choose to Change, Enhanced usual care
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 20, 2022 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Phase 2 Interventional Results available

eIMPACT Trial: Modernized Collaborative Care to Reduce the Excess CVD Risk of Older Depressed Patients

NCT02458690
View directory record Official record
Conditions
Depression, Major Depressive Disorder, Dysthymic Disorder, Depressive Symptoms, Cardiovascular Diseases, Heart Diseases, Coronary Artery Disease, Stroke
Interventions
Beating the Blues (BtB), Problem Solving Treatment in Primary Care (PST-PC), Antidepressant Medications, Usual Care
Behavioral · Drug · Other
Lead sponsor
Indiana University
Other
Eligibility
50 Years and older
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 18, 2023 · Synced Sep 5, 2026, 11:43 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Overvaluation of Weight and Shape Intervention vs The Body Project

NCT07678554
View directory record Official record
Conditions
Body Image, Mental Health Outcomes, Eating Disorders, Body Dysmorphic Disorders, Self-esteem
Interventions
Priorities, Body Project
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
14 Years to 22 Years · Female only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 5, 2026, 11:43 AM EDT
Completed Not applicable Interventional

Reduction of Environmental Tobacco Smoke (ETS) Exposure In Pediatric Cancer Patients

NCT00766766
View directory record Official record
Conditions
Cancer
Interventions
Health Risk and Behavioral Skills Coaching Sessions, Telephone Coaching Sessions, Physician Feedback Letter
Behavioral
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 17 Years
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2010
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 5, 2013 · Synced Sep 5, 2026, 11:43 AM EDT