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ClinicalTrials.gov public records Last synced Oct 19, 2026, 9:15 PM EDT

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Showing 1–24 of 138 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Mailed letter Clear all
Completed No phase listed Observational Accepts healthy volunteers

Feasibility of Rapid COVID-19 Testing in Disadvantaged Populations

NCT04558307
View directory record Official record
Conditions
Coronavirus Disease (COVID-19)
Interventions
Pilot a rapid SARS-CoV-2 testing strategy, Community-driven messages to promote COVID-19 testing
Diagnostic Test · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 13, 2021 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Choice Architecture and Colorectal Cancer Screening Outreach

NCT03246438
View directory record Official record
Conditions
Cancer of Colon
Interventions
Colonoscopy only, Colonoscopy outreach + mailed FIT follow-up, Colonoscopy + Mailed FIT outreach and follow-up
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
50 Years to 74 Years
Enrollment
423 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 20, 2019 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Results available

Implementing Evidence Based Treatment of Hypertension

NCT00265538
View directory record Official record
Conditions
Hypertension
Interventions
Patient educational letter to engage provider in hypertension rx discussion, Financial incentive (Arms B and C) and health educator phone call (Arm C)
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 80 Years
Enrollment
834 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
Iowa City, Iowa • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 20, 2020 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Results available

Outreach for Patients With Uncompleted Colorectal Cancer Screening Orders

NCT00793455
View directory record Official record
Conditions
Colorectal Cancer Screening, Prevention & Control
Interventions
Educational outreach
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
Not listed
Enrollment
628 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 1, 2011 · Synced Oct 19, 2026, 9:15 PM 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 30, 2024 · Synced Oct 19, 2026, 9:15 PM 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 15, 2023 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Results available

TeleQuit Smoking Cessation Program

NCT00123682
View directory record Official record
Conditions
Smoking
Interventions
Proactive outreach to counseling, Reactive outreach to counseling, Intensive counseling, Self-help
Procedure
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
Not listed
Enrollment
3,120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
3
States / cities
Palo Alto, California • Sepulveda, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 17, 2015 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Proactive Outreach and Shared Decision Making in Improving Lung Cancer Screening Rates in Primary Care Patients

NCT03929926
View directory record Official record
Conditions
Lung Cancer
Interventions
Best Practice, Cancer Educational Materials, Behavioral, Psychological or Informational Intervention, Counseling
Other · Behavioral
Lead sponsor
Thomas Jefferson University
Other
Eligibility
55 Years to 80 Years
Enrollment
2,355 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating a Real-Time, Remote Monitoring System for Home-Based HIV Testing

NCT02876926
View directory record Official record
Conditions
HIV
Interventions
"Smart" home-based test for HIV, Home-based testing only, Reminder letters for clinic-based testing
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older · Male only
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 19, 2019 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional

Study of Patient Navigation to Promote Colon Cancer Screening

NCT01141114
View directory record Official record
Conditions
Colorectal Cancer Screening
Interventions
Patient navigation, Usual care
Other
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
52 Years to 75 Years
Enrollment
465 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Results available

Using CHWs or Mailing Self Sampling Home Tests to Increase Cervical Cancer Screening in South Florida

NCT02202109
View directory record Official record
Conditions
Cervical Cancer
Interventions
CHW and Self-sampling for Cervical Cancer, Mailed Self Sampler
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
30 Years to 65 Years · Female only
Enrollment
602 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Oct 19, 2026, 9:15 PM 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 30, 2026 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional

Efficacy of Communication Modalities for Promoting Flu Shots

NCT05509270
View directory record Official record
Conditions
Influenza Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Letter, Patient portal, SMS
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
43,225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 12, 2022 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional

Evaluation of a Medication Disposal Program in Primary Care

NCT04320004
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
Education, Education with Reminder, Education + Disposal Bag, Education + Disposal Bag with Reminder
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
Not listed
Enrollment
1,159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 22, 2021 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Results available

Evaluation of a Letter Intervention Promoting a Plant-based Diet

NCT03880838
View directory record Official record
Conditions
Cardiovascular Diseases, Diabetes Mellitus, Obesity
Interventions
Personal testimonial, Forks Over Knives Documentary, Commitment nudge, Prevention nudge
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
11,234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Oct 19, 2026, 9:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Emerging Physical Therapy Practice in Palliative Care: A Survey of Perceptions of Physical Therapists

NCT01336361
View directory record Official record
Conditions
Perception
Interventions
Survey
Other
Lead sponsor
University of Montana
Other
Eligibility
18 Years and older
Enrollment
228 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Sep 17, 2014 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Health Literacy Interventions to Overcome Disparities in CRC Screening

NCT02360605
View directory record Official record
Conditions
Colorectal Cancer
Interventions
automated telephone reminder, prevention coordinator, Health literacy appropriate education and demonstration
Behavioral
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
50 Years to 75 Years
Enrollment
620 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Jun 30, 2021 · Synced Oct 19, 2026, 9:15 PM EDT
Not listed Not applicable Interventional

Patient-centered Treatment of Anxiety After Low-Risk Chest Pain in the Emergency Room

NCT04811521
View directory record Official record
Conditions
Generalized Anxiety Disorder, Chest Pain, Panic
Interventions
Primary care follow-up, Online Self-Administered Anxiety Management Program plus Peer Support Guidance, Therapist-Administered Cognitive Behavioral Therapy
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
375 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
5
States / cities
Avon, Indiana • Carmel, Indiana • Fishers, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2024 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Connecting Families to Overcome Ovarian Cancer

NCT04927013
View directory record Official record
Conditions
Ovarian Cancer
Interventions
Message-based Outreach Intervention for Survivors, Standard Outreach for Survivors, Message-based Outreach Intervention for Close Relatives, Standard Outreach for Close Relatives
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
2,331 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional

Educational Video for Improving Follow-up After an Emergency Department Visit for Asthma

NCT00113633
View directory record Official record
Conditions
Asthma
Interventions
Intervention Subjects
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
1 Year to 18 Years
Enrollment
439 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 4, 2014 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Flatbush FHC Proactive Colorectal Cancer Screening and Navigation

NCT05646355
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Proactive CRC Screening Outreach, Usual Care
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
45 Years to 75 Years
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Dec 27, 2024 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Results available

HMO Research Network CERT: Acute Myocardial Infarction

NCT00211172
View directory record Official record
Conditions
Acute Myocardial Infarction (AMI)
Interventions
Beta-blocker adherence after an AMI
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
836 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
4
States / cities
Atlanta, Georgia • Boston, Massachusetts • Minneapolis, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2014 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Brain Health Study: A Pragmatic, Patient-Centered Trial

NCT05356702
View directory record Official record
Conditions
Dementia, Alzheimer Disease
Interventions
Brain Health Assessment
Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
65 Years and older
Enrollment
3,417 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
5
States / cities
Burien, Washington • Kent, Washington • Renton, Washington + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 19, 2026, 9:15 PM EDT
Completed Not applicable Interventional

Improving Quality of Osteoporosis Care Through Patient Storytelling

NCT01112098
View directory record Official record
Conditions
Osteoporosis
Interventions
Patient Pamphlet
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
65 Years and older · Female only
Enrollment
2,997 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 10, 2011 · Synced Oct 19, 2026, 9:15 PM EDT