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ClinicalTrials.gov public records Last synced Oct 18, 2026, 5:31 AM EDT

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

Showing 433–456 of 4,385 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Observational study Clear all
Recruiting No phase listed Observational

HF2 Registry - Hemodynamic Frontiers in Heart Failure Registry

NCT06425848
View directory record Official record
Conditions
Heart Failure
Interventions
Observational
Device
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 100 Years
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
12
States / cities
La Jolla, California • Bloomington, Indiana • Kansas City, Kansas + 9 more
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 18, 2026, 5:31 AM EDT
Completed Not applicable Interventional

Intraventricular Hemorrhage and Post Hemorrhagic Ventricular Dilation: Natural Course, Treatment, and Outcome

NCT00957840
View directory record Official record
Conditions
Intraventricular Hemorrhage, Premature Infants
Interventions
NIRS, aEEG, and CSF concentration of biomarkers
Procedure
Lead sponsor
University of Utah
Other
Eligibility
Up to 1 Year
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 6, 2015 · Synced Oct 18, 2026, 5:31 AM EDT
Completed No phase listed Observational

TYSABRI Global Observational Program in Safety

NCT00477113
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Not listed
Lead sponsor
Biogen
Industry
Eligibility
Not listed
Enrollment
2,207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 22, 2015 · Synced Oct 18, 2026, 5:31 AM EDT
Recruiting Phase 4 Interventional

An Open-Label Treatment With Randomization Observation, Investigator-Initiated Study, on the Duration and Efficacy of Jornay PM (Methylphenidate Hydrochloride Extended-Release Capsules) on Adult ADHD Symptoms and Executive Function and Emotional Regulation Throughout the Day Into Early Evening

NCT06577779
View directory record Official record
Conditions
Attention-deficit/Hyperactivity Disorder
Interventions
Methylphenidate Hydrochloride Extended Release Capsule
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 18, 2026, 5:31 AM EDT
Terminated No phase listed Observational

The PSVT Place Registry.Paroxysmal Supraventricular Tachycardia (PSVT) Registry.

NCT03353610
View directory record Official record
Conditions
Paroxysmal Supraventricular Tachycardia (PSVT)
Interventions
Not listed
Lead sponsor
Milestone Pharmaceuticals Inc.
Other
Eligibility
Not listed
Enrollment
354 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 3, 2020 · Synced Oct 18, 2026, 5:31 AM EDT
Active, not recruiting Phase 2 Interventional

Zanubrutinib and Venetoclax as Initial Therapy for Chronic Lymphocytic Leukemia (CLL) With Response-based Obinutuzumab

NCT05650723
View directory record Official record
Conditions
Leukemia, Lymphocytic, Chronic, B-Cell
Interventions
Zanubrutinib Pill, Venetoclax Pill, Obinutuzumab Injection
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 25, 2026 · Synced Oct 18, 2026, 5:31 AM EDT
Active, not recruiting Not applicable Interventional Results available

Safety and Effectiveness of the Ultrasonic Propulsion of Kidney Stones

NCT02028559
View directory record Official record
Conditions
Kidney Stones, Nephrolithiasis, Urolithiasis
Interventions
Propulse 1 with C5-2 probe, Propulse 1 with SC-X probe
Device
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Oct 18, 2026, 5:31 AM EDT
Recruiting No phase listed Observational

Diagnostic and Therapeutic Applications of Microarrays in Lung Transplantation

NCT02812290
View directory record Official record
Conditions
Lung Transplant Rejection
Interventions
Lung transplant biopsy bites.
Procedure
Lead sponsor
University of Alberta
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
4
States / cities
Phoenix, Arizona • Baltimore, Maryland • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Oct 18, 2026, 5:31 AM EDT
Completed No phase listed Observational

Persistent Pulmonary Hypertension of the Newborn (PPHN) Observational Study

NCT01203423
View directory record Official record
Conditions
Infant, Newborn, Infant, Low Birth Weight, Infant, Small for Gestational Age, Infant, Premature, Persistent Fetal Circulation Syndrome, Persistent Pulmonary Hypertension of Newborn
Interventions
Not listed
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 7 Days
Enrollment
385 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 1994
U.S. locations
13
States / cities
Palo Alto, California • New Haven, Connecticut • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2019 · Synced Oct 18, 2026, 5:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Measuring Musculoskeletal Symptoms in Patients Receiving Aromatase Inhibitors

NCT01074320
View directory record Official record
Conditions
Breast Cancer
Interventions
Other
Other
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
2
States / cities
Robbinsdale, Minnesota • Saint Louis Park, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 16, 2015 · Synced Oct 18, 2026, 5:31 AM EDT
Recruiting No phase listed Observational

Delirium Identification in Older Patients With Alzheimer's and Other Related Dementias In the Emergency Department

NCT06326424
View directory record Official record
Conditions
Delirium, Dementia, Hospital Acquired Condition
Interventions
Empatica EmbracePlus
Device
Lead sponsor
Ohio State University
Other
Eligibility
65 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Oct 18, 2026, 5:31 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Pediatric Neuroimaging

NCT06912724
View directory record Official record
Conditions
Neurogimaging
Interventions
Not listed
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
9 Years to 14 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 15, 2026 · Synced Oct 18, 2026, 5:31 AM EDT
Not listed Phase 1 Interventional

Study for the Detection of Duodenal Papilla Using Capsule Endoscopy and Comparison of Images With EUS/ERCP Procedure.

NCT03685903
View directory record Official record
Conditions
Patients Indicated for Periampullary or Pancreaticobiliary Examination
Interventions
CapsoCam® Plus (SV-3) capsule endoscope
Device
Lead sponsor
Capso Vision, Inc.
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 29, 2020 · Synced Oct 18, 2026, 5:31 AM EDT
Completed No phase listed Observational

Computer-based Screening for Diabetic Retinopathy

NCT01614327
View directory record Official record
Conditions
Diabetic Retinopathy
Interventions
Not listed
Lead sponsor
VisionQuest Biomedical LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
19,199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Albuquerque, New Mexico • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 18, 2017 · Synced Oct 18, 2026, 5:31 AM EDT
Withdrawn Not applicable Interventional

Randomized Trial With an Observational Component of Non-operative Versus Operative Treatment for AO Type A3 Fractures

NCT02179697
View directory record Official record
Conditions
Spinal Fractures
Interventions
Patient's Choice, Surgery + Bracing vs. Bracing Alone
Other · Procedure
Lead sponsor
H Francis Farhadi
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Oct 18, 2026, 5:31 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Biomarkers for Vascular Contributions to Cognitive Impairment and Dementia Consortium

NCT06284213
View directory record Official record
Conditions
Cognitive Impairment, Dementia
Interventions
No interventions
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
60 Years to 90 Years
Enrollment
1,892 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
17
States / cities
Los Angeles, California • Sacramento, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2025 · Synced Oct 18, 2026, 5:31 AM EDT
Active, not recruiting No phase listed Observational

Improving a Bayesian Model's Survival Estimates in Patients Needing Surgery for Bone Metastases

NCT01470105
View directory record Official record
Conditions
Bone Metastases
Interventions
blood sampling, the SF-36 questionnaire
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2026
U.S. locations
2
States / cities
New York, New York • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 18, 2026, 5:31 AM EDT
Completed No phase listed Observational

Observational Study of the the Use of a Trigeminal Vagal Nerve Stimulator in the Routine Care of Native Americans With Diabetic Neuropathy Pain. Pain Scores, Drug Use and Glucose Measurements Will be Assessed

NCT07025356
View directory record Official record
Conditions
Diabetic Neuropathy With Neurologic Complication
Interventions
Implantation of a trigeminal Vagus cervical nerve stimulator system, Implantation of a neurostimulator system for trigeminal vagal cervical nerve stimulation
Drug · Device
Lead sponsor
Vagus Nerve Society
Other
Eligibility
18 Years to 89 Years
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Pine Ridge, South Dakota
Source: ClinicalTrials.gov public record
Updated Jun 17, 2025 · Synced Oct 18, 2026, 5:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

An Observational Study to Assess Longitudinal Variation of Immune Biomarkers in Subjects at Risk for Development of Type 1 Diabetes

NCT01846312
View directory record Official record
Conditions
Diabetes, Diabetes Mellitus, Type 1
Interventions
No treatment given
Other
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
4 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 23, 2015 · Synced Oct 18, 2026, 5:31 AM EDT
Recruiting No phase listed Observational

Evaluation of Hypertension Management and Cardiovascular Adverse Event Prevention in Patients With B-cell Malignancies Undergoing Treatment With Bruton Tyrosine Kinase Inhibitors, the HALT Study

NCT06151730
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia, Hematopoietic and Lymphoid System Neoplasm, Mantle Cell Lymphoma, Marginal Zone Lymphoma, Waldenstrom Macroglobulinemia
Interventions
Non-Interventional Study
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 18, 2026, 5:31 AM EDT
Completed No phase listed Observational

VCRC Longitudinal Protocol for Aortitis

NCT03022331
View directory record Official record
Conditions
Aortitis
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
5 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
7
States / cities
Boston, Massachusetts • Rochester, Minnesota • Cleveland, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated May 11, 2020 · Synced Oct 18, 2026, 5:31 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Early Caries Lesion Management Observational Study

NCT04933331
View directory record Official record
Conditions
Initial Caries, Arrested Dental Caries, Cavitated Caries, Dental Caries, Dental Caries in Children
Interventions
Curodont Repair Fluoride Plus, Silver Diamine Fluoride, Glass Ionomer Sealant, Fluoride varnish, Fluoride toothpaste
Drug · Device
Lead sponsor
CareQuest Institute for Oral Health
Other
Eligibility
4 Years and older
Enrollment
744 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
4
States / cities
Dothan, Alabama • Westborough, Massachusetts • Bend, Oregon + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 24, 2023 · Synced Oct 18, 2026, 5:31 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of Tildrakizumab in the Treatment of Nail Psoriasis

NCT03897075
View directory record Official record
Conditions
Chronic Plaque Psoriasis, Moderate to Severe Nail Psoriasis
Interventions
Tildrakizumab, Placebo
Drug
Lead sponsor
Sun Pharmaceutical Industries Limited
Industry
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
11
States / cities
Encinitas, California • Fountain Valley, California • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Oct 18, 2026, 5:31 AM EDT
Recruiting No phase listed Observational

Continuous Monitoring of Microvascular Anastomoses: An Observational Trial

NCT07823283
View directory record Official record
Conditions
Head and Neck Neoplasm
Interventions
Non-Interventional Study
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 18, 2026, 5:31 AM EDT