Search | Clinical Trials Finder

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ClinicalTrials.gov public records Last synced Nov 13, 2026, 9:39 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 54 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Patient letters Clear all

Conditions: Alzheimer Disease, Dementia, Prescribing, Off-Label
Interventions: Overprescribing letter to attributed physician, Placebo letter to attributed physician; Behavioral
Lead sponsor: Columbia University; Other
Eligibility: Not listed
Enrollment: 336,460 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2015 – 2018
U.S. locations: 3
States / cities: Boston, Massachusetts • Cambridge, Massachusetts • New York, New York

Conditions: Suicide, Suicide Prevention, Suicide and Self-harm
Interventions: Caring Contacts; Behavioral
Lead sponsor: St. Luke's Health System, Boise, Idaho; Other
Eligibility: 12 Years and older
Enrollment: 854 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023 – 2026
U.S. locations: 1
States / cities: Boise, Idaho

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

Conditions: Diabetes Mellitus, Type 2, Pre Diabetes
Interventions: Parkland Diabetes Detection Program (PDDP) Screening Invitation; Behavioral
Lead sponsor: University of Texas Southwestern Medical Center; Other
Eligibility: 18 Years to 75 Years
Enrollment: 500,000 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2028
U.S. locations: 1
States / cities: Dallas, Texas

Conditions: Asthma, Coronary Artery Disease, Diabetes, Hypertension, Congestive Heart Failure
Interventions: Reports, Reports and Notices, Usual care; Other
Lead sponsor: Duke University; Other
Eligibility: Not listed
Enrollment: 8,422 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2012
U.S. locations: 1
States / cities: Durham, North Carolina

Conditions: Pediatric Cancer, Pediatric ALL, Pediatric Brain Tumor, Attention Difficulties, Cognitive Deficit in Attention
Interventions: EndeavorRx, Control video game; Device · Other
Lead sponsor: Children's National Research Institute; Other
Eligibility: 8 Years to 16 Years
Enrollment: 50 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023 – 2025
U.S. locations: 1
States / cities: Washington D.C., District of Columbia

Conditions: End Stage Renal Disease, Kidney Failure
Interventions: Provider educational materials, Patient letters; Behavioral
Lead sponsor: Columbia University; Other
Eligibility: 18 Years and older
Enrollment: 37 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2025
U.S. locations: 2
States / cities: New York, New York • Cleveland, Ohio

Conditions: Hemianopia, Homonymous
Interventions: Biofeedback Fixation Training, Saccadic Reading Training; Behavioral
Lead sponsor: University of Alabama at Birmingham; Other
Eligibility: 18 Years to 89 Years
Enrollment: 20 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2027
U.S. locations: 1
States / cities: Birmingham, Alabama

Conditions: Women's Health, Annual Visit, Well Visit, Health Behavior, Prevention
Interventions: Precision nudging, Standard of care; Other
Lead sponsor: Lirio; Industry
Eligibility: 21 Years to 65 Years · Female only
Enrollment: 30,068 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2024
U.S. locations: 1
States / cities: New York, New York

Conditions: Cervical Carcinoma, Human Papillomavirus-Related Malignant Neoplasm
Interventions: Best Practice, Educational Intervention, Questionnaire Administration, Reminder; Other
Lead sponsor: Ohio State University Comprehensive Cancer Center; Other
Eligibility: 11 Years and older
Enrollment: 372 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2027
U.S. locations: 4
States / cities: Lexington, Kentucky • Columbus, Ohio • Charlottesville, Virginia + 1 more

Conditions: Substance Abuse
Interventions: brief (behavioral therapy), Drop out re-engagement motivational intervention, standard care follow up; Behavioral
Lead sponsor: Yale University; Other
Eligibility: 18 Years to 65 Years
Enrollment: 299 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2004 – 2009
U.S. locations: 2
States / cities: New Haven, Connecticut

Conditions: Neurofibromatosis 1
Interventions: Letters about NF1 Care (Content Type 1), Letters about NF1 Care (Content Type 2); Other
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: Not listed
Enrollment: 294 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2026
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Blood Pressure
Interventions: Community Health Worker (CHW), Remote Blood Pressure (BP) Management Program (RBPM); Behavioral · Other
Lead sponsor: Yale University; Other
Eligibility: 18 Years and older
Enrollment: 1,440 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2027
U.S. locations: 4
States / cities: New Haven, Connecticut • Boston, Massachusetts • Houston, Texas + 1 more

Conditions: Chronic Kidney Disease
Interventions: Patient Engagement; Other
Lead sponsor: University of Vermont; Other
Eligibility: 18 Years and older
Enrollment: 488 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2015 – 2017
U.S. locations: 1
States / cities: Palm Desert, California

Conditions: Colorectal Cancer
Interventions: Septin9; Diagnostic Test
Lead sponsor: Peter S. Liang, MD MPH; Federal
Eligibility: 50 Years to 75 Years
Enrollment: 359 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2018 – 2020
U.S. locations: 1
States / cities: New York, New York

Conditions: Bariatric Surgery Candidate, Obesity, Morbid
Interventions: Neurofit, Psychometric hepatic encephalopathy score; Device · Diagnostic Test
Lead sponsor: Stanford University; Other
Eligibility: 18 Years to 65 Years
Enrollment: 19 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018 – 2021
U.S. locations: 1
States / cities: Redwood City, California

Conditions: Breast Cancer
Interventions: IT System; Other
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: 18 Years and older · Female only
Enrollment: 6,730 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: Started 2007
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Glaucoma
Interventions: Efficacy-patient navigator to improve follow-up adherence, Office-Based Usual Care; Behavioral
Lead sponsor: Wills Eye; Other
Eligibility: 50 Years and older
Enrollment: 155 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2015
U.S. locations: 1
States / cities: Philadelphia, Pennsylvania

Conditions: Colorectal Cancer
Interventions: Trial Mailed FIT Intervention - Age Group 50-75, Sub-Study Mailed FIT Intervention Enhanced Envelope - Age Group 45-49, Sub-Study Mailed FIT Active Comparator Plain Envelope - Age Group 45-49; Behavioral
Lead sponsor: UNC Lineberger Comprehensive Cancer Center; Other
Eligibility: 45 Years to 75 Years
Enrollment: 4,318 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2024
U.S. locations: 2
States / cities: Ahoskie, North Carolina • Hendersonville, North Carolina

Conditions: Ascites, Cirrhosis
Interventions: Residency Program Teaching, Lecture, Pocket Card Reference, Pager; Behavioral · Other
Lead sponsor: Boston Medical Center; Other
Eligibility: Not listed
Enrollment: 136 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2012
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Cataract
Interventions: Not listed
Lead sponsor: Alcon Research; Industry
Eligibility: 18 Years and older
Enrollment: 58 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2008
U.S. locations: 1
States / cities: Fort Worth, Texas

Conditions: Macular Degeneration, Choroidal Neovascularization
Interventions: Verteporfin photodynamic therapy, Pegaptanib, Triamcinolone acetonide; Drug
Lead sponsor: Novartis Pharmaceuticals; Industry
Eligibility: 50 Years and older
Enrollment: 111 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: Started 2005
U.S. locations: 1
States / cities: Austin, Texas

Conditions: Hypothyroidism
Interventions: D-THIO (Deprescribing Thyroid Hormone In Older Adults), Enhanced usual care; Behavioral
Lead sponsor: University of Michigan; Other
Eligibility: 65 Years and older
Enrollment: 900 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2028
U.S. locations: 3
States / cities: San Francisco, California • Ann Arbor, Michigan • Detroit, Michigan

Conditions: Acetaminophen Overdose, Pain
Interventions: Active Ingredient Icon; Behavioral
Lead sponsor: Northwestern University; Other
Eligibility: 18 Years to 80 Years
Enrollment: 662 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2012 – 2013
U.S. locations: 4
States / cities: Atlanta, Georgia • Chicago, Illinois

Search by objective public record fields.

The Effect of De-Prescribing Antipsychotics on Health and Quality of Life for People With Dementia

Comparing Suicide Prevention Interventions to Guide Follow-up Care: The SPRING Trial

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

Increasing Uptake of EHR-enabled Population Health Outreach Strategies to Improve Diabetes Screening

Care Transitions for Complex Patient - Cycle 1 and Cycle 2

Feasibility/Acceptability of Attentional-Control Training in Survivors

Using Shared Decision Making to Improve Kidney Transplantation Rates

Comparative Efficacy of Saccadic and Biofeedback Training in Homonymous Hemianopia

Precision Nudging Drives Wellness Visit Attendance at Scale

I Vaccinate: Testing Multi-Level Interventions to Improve HPV Vaccination

Brief Interventions for Drop-out Re-engagement

A Decentralized Clinical Trial to Promote Evidence-Based Care for Underserved Patients With Neurofibromatosis 1

PRESSURE CHECK: Find Your Path to Better Health

Discontinuation of Automated Engagement Support

Assessing the Effect of a Blood-based Colorectal Cancer Screening Test on Screening Adherence and Colonoscopy Completion

Eye Movement Testing in Patients With Obesity and the Impact of Weight Loss Surgery

A Mammography FastTrack Program in Increasing the Number of Women Undergoing Breast Cancer Screening

Comparison Study of Glaucoma Eye Care Follow-Up Adherence in a High Risk Population

Scaling CRC Screening Through Outreach, Referral, and Engagement (SCORE)

Improving Performance of Paracentesis in Medical Residency Training

Blue Light Intraocular Lenses (IOLs) and Photostress

A Safety and Efficacy Study Comparing the Combination Treatments of Verteporfin Therapy Plus One of Two Different Doses of Intravitreal Triamcinolone Acetonide and the Verteporfin Therapy Plus Intravitreal Pegaptanib

Optimizing Care for Older Adults Through Thyroid Hormone Deprescribing

Investigation of Efficacy of Improved Acetaminophen Labeling