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Showing 1–22 of 22 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Emails and letter intervention Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Comprehensive Police Fatigue Management Program

NCT00246051
View directory record Official record
Conditions
Sleep Disorders, Sleep Apnea, Obstructive, Restless Legs Syndrome, Sleep Disorders, Circadian Rhythm, Sleep Initiation and Maintenance Disorders
Interventions
Sleep Hygiene Education, Expert-Led Sleep Disorders Screening and Treatment, Online Sleep Disorders Screening
Behavioral · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
683 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 14, 2013 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional

Evaluation of Spot Light: A Concussion Injury Management App for Youth Sports

NCT02249533
View directory record Official record
Conditions
TBI
Interventions
Spot Light Concussion App
Other
Lead sponsor
Lara McKenzie
Other
Eligibility
10 Years to 19 Years
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 31, 2017 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Electronic Health Record Strategies to Promote Diverse Participation in Research

NCT05348603
View directory record Official record
Conditions
Patient Participation
Interventions
Traditional Letter, Direct to Patient Message, Chatbot, Banner
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
726,199 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 10, 2023 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional Results available

Trial of Low and High Intensity Strategies to Maintain BP Control

NCT00760552
View directory record Official record
Conditions
Hypertension
Interventions
High Intensity Intervention, Low Intensity Intervention, All- 6 month pharmacist intervention
Other
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
249 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Apr 26, 2015 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional

Using Personalized Letters and Emails to Increase Health Insurance Take-up and Improve Plan Choice Quality

NCT05216458
View directory record Official record
Conditions
Health Behavior
Interventions
Emails and letter intervention, Control group
Behavioral
Lead sponsor
Office of Evaluation Sciences
Federal
Eligibility
Not listed
Enrollment
44,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jan 30, 2022 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional Results available

Advance Care Planning in the Emergency Department

NCT05209880
View directory record Official record
Conditions
Congestive Heart Failure, Metastatic Cancer, Chronic Kidney Disease Requiring Chronic Dialysis, Chronic Obstructive Pulmonary Disease
Interventions
ED GOAL
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Sep 8, 2026, 2:10 AM EDT
Recruiting Not applicable Interventional

Stratified Targeted Engagement From Primary Care to Physical Therapy (STEPPT)

NCT07290361
View directory record Official record
Conditions
Low Back Pain, Neck Pain
Interventions
Engagement of clinic leadership (System Intervention - Usual Care), Engagement of clinic leadership (System Intervention - STEPPT), Patient Registry (System Intervention - STEPPT), Delivery of Patient Education Materials (System Intervention - Usual Care), Delivery of Patient Education Materials (System Intervention - STEPPT), Referral Specialist Training (System Intervention - Usual Care), Patient Health Navigator Training (System Intervention - STEPPT), Care Navigation (System Intervention - STEPPT), Care navigation audit and feedback (System Intervention - STEPPT), Primary Care Provider training (Provider Intervention - STEPPT), Nurse/Medical Assistant Training (Provider Intervention - STEPPT), Provider feedback on PT referral and adherence (Provider Intervention - STEPPT), Patient education on spine pain condition (Patient Intervention - Usual Care), Patient education on spine pain condition (Patient Intervention - STEPPT), Patient Education on Physical Referral by Providers (Patient Intervention - Usual Care), Patient Education on Physical Referral by Providers (Patient Intervention - STEPPT), Electronic Patient Education on Physical Therapy Referral (Patient Intervention - STEPPT), Patient education on physical therapy referral by Referral Specialist (Patient Intervention - Usual Care), Patient education on physical therapy referral by Patient Health Navigator (Patient Intervention - STEPPT), Care Navigation (System Intervention - Usual Care), Monitoring of PT referral and adherence rates (System Intervention - STEPPT), Monitoring of PT referral and adherence rates (System intervention - Usual Care)
Behavioral
Lead sponsor
San Diego State University
Other
Eligibility
18 Years and older
Enrollment
17,587 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 8, 2026, 2:10 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

FaCT Trial (Facilitated Cascade Testing Trial)

NCT04613440
View directory record Official record
Conditions
BRCA1 Mutation, BRCA2 Mutation
Interventions
Family Letter (Standard of Care), Educational Video, Mailed Saliva Kit for Genetic Testing, Telephone Counseling
Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
524 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
3
States / cities
New York, New York • Durham, North Carolina • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 8, 2026, 2:10 AM EDT
Recruiting Not applicable Interventional

The FYI on MRI: A Multilevel Decision Support Intervention for Screening Breast MRI

NCT06892275
View directory record Official record
Conditions
Breast Neoplasm Female, Early Detection of Cancer, Hereditary Breast and Ovarian Cancer Syndrome, Magnetic Resonance Imaging
Interventions
Enhanced Usual Care, Decision Support
Behavioral
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 74 Years · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Sep 8, 2026, 2:10 AM EDT
Not listed Not applicable Interventional

COVID-19 Booster Dose Reminder/Recall for Adolescents

NCT05571657
View directory record Official record
Conditions
COVID-19 Vaccines
Interventions
Reminder/Recall Sent Via Preferred Method of Communication
Behavioral
Lead sponsor
Marshfield Clinic Research Foundation
Other
Eligibility
12 Years to 17 Years
Enrollment
4,304 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Marshfield, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 12, 2022 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Usefulness of Video-Based Intervention in Helping Participants Encourage Their Families to Get Tested for BRCA Gene Mutations

NCT05264532
View directory record Official record
Conditions
BRCA1 Gene Mutation, BRCA2 Gene Mutation
Interventions
Informational Intervention, Survey Administration
Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years to 80 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 8, 2026, 2:10 AM EDT
Not listed Not applicable Interventional

Dialogue Around Respiratory Illness Treatment

NCT02943551
View directory record Official record
Conditions
Respiratory Disease, Acute Respiratory Infection, Respiratory Infection, Upper Respiratory Infection
Interventions
Online Tutorial, Webinars, Booster Sessions, Feedback Reports, Parent Survey
Other
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
6 Months to 10 Years
Enrollment
2,728 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
20
States / cities
Paragould, Arkansas • Eureka, California • Durango, Colorado + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2019 · Synced Sep 8, 2026, 2:10 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 8, 2026, 2:10 AM EDT
Active, not recruiting Phase 2 Interventional

Food: A Three-Arm Study Examining Food Insecurity Interventions

NCT01603316
View directory record Official record
Conditions
Cancer Patients
Interventions
surveys, Focus groups
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
606 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2027
U.S. locations
10
States / cities
Brooklyn, New York • Jamaica, New York • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 8, 2026, 2:10 AM EDT
Enrolling by invitation Not applicable Interventional

UCLA Health Patient Health Tickler Email

NCT06131723
View directory record Official record
Conditions
Health Maintenance
Interventions
Behaviorally informed tickler email
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
81,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Sep 8, 2026, 2:10 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Preventing Early-Onset Colorectal Cancer in the VA

NCT07071454
View directory record Official record
Conditions
Colorectal Neoplasms, Mass Screening
Interventions
Patient intervention, PCP intervention
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
45 Years to 49 Years
Enrollment
536 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Provider Commitments to Choose Wisely

NCT03411525
View directory record Official record
Conditions
Health Services Misuse, Physician's Practice Patterns, Guideline Adherence, Unnecessary Procedures, Health Care Costs
Interventions
Commitment Invitation for Clinicians (Clinician Intervention), Health Education Materials to Patients (Patient Intervention)
Behavioral · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
489 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
9
States / cities
Ann Arbor, Michigan • Brighton, Michigan • Canton, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2019 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of a Multilevel Intervention on Adult COVID-19 and Influenza Vaccination Rate

NCT06646406
View directory record Official record
Conditions
COVID-19 Immunisation, Influenza Vaccine
Interventions
Patient letter and clinician communication
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
19 Years and older
Enrollment
114,165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Accelerating Implementation of Mindful Mood Balance for Moms

NCT04846504
View directory record Official record
Conditions
Perinatal Depression
Interventions
MMBFM program with clinician coach support, MMBFM program with peer coach support, Patient facing strategy intervention arm, Patient facing plus clinic facing strategy intervention arm
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older · Female only
Enrollment
423 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
San Diego, California • Denver, Colorado • Atlanta, Georgia + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Parent Engagement Package: Comparing Strategies for Engaging Parents Into Parenting Programs

NCT03147716
View directory record Official record
Conditions
Patient Compliance
Interventions
Enrollment Flyer, Testimonial Booklet, Teacher Endorsement, Provider Engagement Call
Other
Lead sponsor
Arizona State University
Other
Eligibility
Not listed
Enrollment
854 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 8, 2019 · Synced Sep 8, 2026, 2:10 AM EDT
Completed Not applicable Interventional

Evaluation of the Asthma Management Program to Promote Activity for Students in Schools (Asthma-PASS)

NCT04576442
View directory record Official record
Conditions
Asthma in Children
Interventions
Asthma-PASS, Basic Asthma Management (AM), Child/Caregiver Education session
Behavioral
Lead sponsor
Montefiore Medical Center
Other
Eligibility
4 Years to 12 Years
Enrollment
452 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 8, 2026, 2:10 AM EDT
Recruiting Not applicable Interventional

AI Detection of Incidental Coronary Artery Calcium to Enhance Cardiovascular Disease Prevention

NCT06235112
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Electronic health record-based notification of Nanox.AI Coronary Artery Calcification Assessment
Device
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
40 Years to 75 Years
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Sep 8, 2026, 2:10 AM EDT