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ClinicalTrials.gov public records Last synced Oct 11, 2026, 2:33 AM EDT

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

Showing 97–120 of 261 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Letter Intervention Clear all
Completed Not applicable Interventional Accepts healthy volunteers

A School Health Center Intervention to Increase Adolescent Vaccination

NCT01595542
View directory record Official record
Conditions
Immunization Program, School Health Services, HPV Vaccines
Interventions
Modified Vaccine Consent Form
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
Not listed
Enrollment
3,417 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 13, 2014 · Synced Oct 11, 2026, 2:33 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 Oct 2, 2026 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional

CHOICES: Understanding Clinical Trials as a Treatment Option

NCT00983866
View directory record Official record
Conditions
Cancer
Interventions
Tailored Telephone Counseling
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
1,376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2018
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Jan 10, 2019 · Synced Oct 11, 2026, 2:33 AM EDT
Completed 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
176,785 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 Oct 1, 2026 · Synced Oct 11, 2026, 2:33 AM EDT
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 16, 2022 · Synced Oct 11, 2026, 2:33 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 16, 2020 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional

Periodontitis and Cardiovascular Events or "PAVE"

NCT00066053
View directory record Official record
Conditions
Cardiovascular Disease, Coronary Heart Disease, Myocardial Infarction, Cerebrovascular Accident
Interventions
Periodontal Treatment: SRP, Referral
Procedure
Lead sponsor
University at Buffalo
Other
Eligibility
Up to 75 Years
Enrollment
303 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Aug 5, 2011 · Synced Oct 11, 2026, 2:33 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 6, 2024 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ketogenic Intervention in Depression

NCT06080932
View directory record Official record
Conditions
Depression, Ketosis
Interventions
Ketogenic Diet, NIH Toolbox, gradCPT, Resting-state fMRI, Task-fMRI, CGM/CKM, Blood Draw, Sleep Monitoring, Ketone/Glucose Monitoring, Body Composition, PHQ-9, WHO-5, SKID
Other · Biological · Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 30 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

iADAPT: Off Label Use of Antipsychotics in the Nursing Home

NCT01347619
View directory record Official record
Conditions
Off-label Use of Atypical Antipsychotic Drugs
Interventions
Toolkit only with Web Access to Online Version, Toolkit, Periodic Audit/Feedback, Educational Messages, Items in Arm 2 plus Academic Detailing Program
Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Rocky Hill, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 1, 2014 · Synced Oct 11, 2026, 2:33 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Brief Integrative Alcohol Interventions for Adolescents

NCT01427465
View directory record Official record
Conditions
Alcohol Abuse, Drug Abuse
Interventions
Brief Prevention Program Using Positive Image
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
Not listed
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 22, 2011 · Synced Oct 11, 2026, 2:33 AM EDT
Recruiting No phase listed Observational

Universal Rare Gene Study: A Registry and Natural History Study of Retinal Dystrophies Associated With Rare Disease-Causing Genetic Variants

NCT05589714
View directory record Official record
Conditions
Inherited Retinal Degeneration, Retinitis Pigmentosa
Interventions
Not listed
Lead sponsor
Jaeb Center for Health Research
Other
Eligibility
4 Years and older
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
19
States / cities
Little Rock, Arkansas • Los Angeles, California • San Francisco, California + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional Results available

Positive Psychology Intervention In HSCT

NCT05147311
View directory record Official record
Conditions
Hematologic Malignancy, Hematopoietic/Lymphoid Cancer, Blood Cancer
Interventions
Positive Psychology Intervention
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 90 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2024 · Synced Oct 11, 2026, 2:33 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 Feb 1, 2017 · Synced Oct 11, 2026, 2:33 AM EDT
Not listed Not applicable Interventional

Doctor-Recommended Home-Based Exercise Program or Relaxation Training in Improving Physical Function and Controlling Symptoms in Patients With Stage IV or Recurrent Colon Cancer That Cannot Be Removed By Surgery

NCT00985400
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Exercise Program, Telephone-based intervention, Counseling intervention, Questionnaire administration, Relaxation Program
Behavioral · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional

Living Well With Stroke

NCT01133106
View directory record Official record
Conditions
Cerebrovascular Stroke, Depression
Interventions
Brief pleasurable events/behavioral therapy, Standard care
Behavioral · Other
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 23, 2016 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional

Collaborative Care for Infants at Risk

NCT03199326
View directory record Official record
Conditions
Child Abuse, Primary Health Care, Child Welfare
Interventions
Collaborative Care
Other
Lead sponsor
University of Utah
Other
Eligibility
0 Days to 364 Days
Enrollment
468 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Nov 10, 2020 · Synced Oct 11, 2026, 2:33 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 23, 2026 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional

Hypoglycemia Prevention in High-Risk Type 2 Diabetes Patients

NCT06746714
View directory record Official record
Conditions
Diabetes
Interventions
Proactive population care (active application of HOAP principles in patients flagged as high risk for hypoglycemia), Usual care, after system-side dissemination of HOAP
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Pleasanton, California
Source: ClinicalTrials.gov public record
Updated Dec 24, 2024 · Synced Oct 11, 2026, 2:33 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 5, 2023 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional

Increasing Human Papillomavirus Vaccine Uptake in Low-Income, Ethnic Minority Adolescents in Los Angeles County

NCT02067507
View directory record Official record
Conditions
Human Papilloma Virus Infection
Interventions
Tailored education and referral, Staff training and patient reminders, Clinic-level reminder systems
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
9 Years to 70 Years
Enrollment
53,414 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
2
States / cities
Alhambra, California • San Fernando, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2019 · Synced Oct 11, 2026, 2:33 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Training Model to Advance Support of the Family as a Caregiving System in the Inpatient Oncology Setting

NCT01805609
View directory record Official record
Conditions
Support of the Family as a Caregiving System
Interventions
Working with the Caregiving Family (WCF) training, questionnaires
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
12 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional

The Impact of Social Proximity on Conversion to Generic Prescription Medications

NCT01251419
View directory record Official record
Conditions
Conversion From Brand Name to Generic Medication
Interventions
Social Proximity and Conversion to Generic Medications
Other
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 18, 2012 · Synced Oct 11, 2026, 2:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fire Fighter Fatigue Management Program: Operation Healthy Sleep

NCT01988129
View directory record Official record
Conditions
Shift-Work Sleep Disorder, Insomnia, Restless Leg Syndrome, Obstructive Sleep Apnea, Impaired Driving, Injuries
Interventions
Sleep disorders education and screening
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
1,189 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 16, 2017 · Synced Oct 11, 2026, 2:33 AM EDT