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ClinicalTrials.gov public records Last synced Oct 30, 2026, 2:39 PM EDT

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

Showing 1–24 of 651 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Observational study, no intervention Clear all
Recruiting No phase listed Observational

Key Longitudinal Associations With Risk and Glioblastoma Outcomes

NCT06625684
View directory record Official record
Conditions
Glioblastoma
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

The Mobility Toolkit: Electronically Augmented Assessment of Functional Recovery Following Lower-extremity Trauma

NCT04047030
View directory record Official record
Conditions
Gait
Interventions
None- Observational Study
Other
Lead sponsor
Major Extremity Trauma Research Consortium
Other
Eligibility
18 Years to 60 Years
Enrollment
244 participants
Timeline
2019 – 2024
U.S. locations
10
States / cities
Lexington, Kentucky • Baltimore, Maryland • Bethesda, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Diagnostic Device for the Assessment of Pulpal Blood Flow

NCT03578549
View directory record Official record
Conditions
Dental Pulp Test
Interventions
Pulse Oximetry
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

Association Between Fuchs' Endothelial Corneal Dystrophy Severity and Estrogen Exposure

NCT04564378
View directory record Official record
Conditions
Fuchs Dystrophy
Interventions
This is an observational study. There is no therapeutic intervention.
Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
55 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

Yale COVID-19 Recovery Study

NCT04895189
View directory record Official record
Conditions
Covid19 Sequelae
Interventions
No intervention
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Oct 30, 2026, 2:39 PM EDT
Completed Not applicable Interventional Results available

Reducing Episodes by Septal Pacing Efficacy Confirmation Trial (RESPECT)

NCT00289289
View directory record Official record
Conditions
Atrial Fibrillation, Tachycardia, Supraventricular, Arrhythmia, Bradycardia
Interventions
Intervention Pacing Features
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
Not listed
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
34
States / cities
Little Rock, Arkansas • Rancho Mirage, California • San Diego, California + 31 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2012 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

Neurologic Manifestations of COVID 19 in Children

NCT04379089
View directory record Official record
Conditions
COVID, Neurologic Manifestations
Interventions
Observational study only
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
Up to 17 Years
Enrollment
3,568 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 27, 2023 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational Results available

A Prospective Study of Airless Tubing in an Inpatient Acute Hemodialysis Unit in Hospitalized Patients

NCT02086682
View directory record Official record
Conditions
End Stage Renal Failure on Dialysis, Complication of Dialysis, Blood Coagulation Disorders
Interventions
Not listed
Lead sponsor
Marie Hogan
Other
Eligibility
18 Years and older
Enrollment
338 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 15, 2019 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

Autoregulation Assessment During Liver Transplantation

NCT01425385
View directory record Official record
Conditions
Liver Failure, Liver Transplantation, Encephalopathy
Interventions
Near infrared spectroscopy monitoring, Autoregulation monitoring
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 22, 2017 · Synced Oct 30, 2026, 2:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

7 Tesla MRI Study in Patients With Statin Related Muscle Complaints

NCT04575090
View directory record Official record
Conditions
Statin-related Muscle Pain, Muscle Aches, Muscle Weakness, Muscle Cramp, Muscle Stiffness
Interventions
Simvastatin
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 31, 2022 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

Observational Study of Iron Overload in Stem Cell Transplantation

NCT00954720
View directory record Official record
Conditions
Acute Myeloid Leukemia, Acute Lymphoblastic Leukemia, Myelodysplastic Syndrome
Interventions
No Intervention
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 28, 2013 · Synced Oct 30, 2026, 2:39 PM EDT
Terminated Not applicable Interventional Results available

Preliminary Percutaneous Intervention Versus Observational Trial of Arterial Ductus in Low-weight Infants

NCT03982342
View directory record Official record
Conditions
Patent Ductus Arteriosus
Interventions
Cather closure of patent ductus arteriosus (PDA), Conservative management of patent ductus arteriosus (PDA)
Device · Other
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
14 Days to 28 Days
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Columbus, Ohio • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Related Health and Infection Control Practices Among Dentists

NCT04423770
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2
Interventions
No intervention
Other
Lead sponsor
American Dental Association
Other
Eligibility
18 Years and older
Enrollment
2,196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

Multi-Drug Resistant Organism (MDRO): Study of Highly Resistant Escherichia Coli

NCT04574596
View directory record Official record
Conditions
E Coli Infection
Interventions
no Intervention
Other
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
300 participants
Timeline
2020 – 2021
U.S. locations
13
States / cities
Torrance, California • Aurora, Colorado • Atlanta, Georgia + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

Study of the Treatment and Outcomes in Critically Ill Patients With COVID-19

NCT04343898
View directory record Official record
Conditions
Coronavirus Infection
Interventions
No intervention
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
5,154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 9, 2023 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

Imaging Markers of Subclinical Cardiotoxicity in Breast Cancer

NCT02666378
View directory record Official record
Conditions
Breast Cancer
Interventions
Cardiac Magnetic Resonance Imaging (CMR), Echocardiogram (ECHO)
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 30, 2026, 2:39 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Singula Phase 0.1 Primary Care Pilot

NCT07834684
View directory record Official record
Conditions
Depression - Major Depressive Disorder, Anxiety
Interventions
Not listed
Lead sponsor
Singula Health, Inc.
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
2
States / cities
Brentwood, New York • Mount Kisco, New York
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 30, 2026, 2:39 PM EDT
Not listed No phase listed Observational

COVID-19 & Psychiatry: A Retrospective Chart Review

NCT05244096
View directory record Official record
Conditions
COVID-19
Interventions
No intervention
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
65,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 5, 2024 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational

The Registry of Oncology Outcomes Associated With Testing and Treatment

NCT04028479
View directory record Official record
Conditions
Adenocarcinoma, Adenocystic Carcinoma, Anal Cancer, Appendix Cancer, Brain Tumor, Glioblastoma, Astrocytoma, Bile Duct Cancer, Cholangiocarcinoma, Bladder Cancer, Bone Cancer, Synovial Sarcoma, Chondrosarcoma, Liposarcoma, Sarcoma, Kaposi, Sarcoma,Soft Tissue, Sarcoma, Osteosarcoma, CNS Cancer, Brain Stem Neoplasms, Breast Cancer, Cervical Cancer, Colorectal Cancer, Rectal Cancer, Colon Cancer, Esophageal Cancer, Esophagus Cancer, Cancer of Colon, Pancreatic Cancer, Cancer of Pancreas, Testis Cancer, Testicular Cancer, Ureter Cancer, Renal Cell Carcinoma, Kidney Cancer, Gestational Trophoblastic Tumor, Head and Neck Neoplasms, Parotid Tumor, Larynx Cancer, Tongue Cancer, Pharynx Cancer, Salivary Gland Cancer, Acute Myeloid Leukemia, Chronic Myeloid Leukemia, Acute Lymphoblastic Leukemia, Multiple Myeloma, Non Hodgkin Lymphoma, Carcinoid Tumor, Lung Cancer, Neuroendocrine Tumors, Mesothelioma, Thyroid Cancer, Parathyroid Neoplasms, Adrenal Cancer, Small Bowel Cancer, Stomach Cancer, Liver Cancer, Hepatic Cancer, Melanoma, Skin Cancer, Unknown Primary Tumors, Uterine Cancer, Fallopian Tube Cancer, Ovarian Cancer, Prostate Cancer, Vaginal Cancer, Penile Cancer, Vulvar Cancer, Waldenstrom Macroglobulinemia, Cancer, Advanced, Thymus Cancer, Nasopharyngeal Carcinoma, Multiple Endocrine Neoplasia, Pheochromocytoma, Small Cell Carcinoma, Pulmonary Carcinoma
Interventions
Biomarker Testing (L), Systemic Treatment (T), Patient Reported Outcomes (P)
Diagnostic Test · Drug · Other
Lead sponsor
Taproot Health
Industry
Eligibility
18 Years and older
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
2
States / cities
Idaho Falls, Idaho • Laredo, Texas
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Oct 30, 2026, 2:39 PM EDT
Recruiting No phase listed Observational

Outcomes and Health Care Resource Utilization in Pediatric Congenital Heart Disease Patients Undergoing Non-Cardiac Procedures

NCT04604418
View directory record Official record
Conditions
Congenital Heart Disease in Children
Interventions
No intervention. It is observational
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Up to 21 Years
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
9
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Atlanta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Oct 30, 2026, 2:39 PM EDT
Withdrawn No phase listed Observational

Anesthesia Charting Fidelity Study

NCT01179932
View directory record Official record
Conditions
Anesthesia
Interventions
No Intervention Used
Other
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Oct 30, 2026, 2:39 PM EDT
Completed Not applicable Interventional Results available

Lymphedema Prophylaxis in Breast Cancer Survivors Who Show Early Evidence of High-risk Status

NCT00383500
View directory record Official record
Conditions
Lymphedema, Breast Cancer
Interventions
Flexitouch, Class 1 compression garment
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 30, 2017 · Synced Oct 30, 2026, 2:39 PM EDT
Recruiting No phase listed Observational

Danon Disease Natural History Study

NCT06214507
View directory record Official record
Conditions
Danon Disease
Interventions
No intervention
Other
Lead sponsor
Rocket Pharmaceuticals Inc.
Industry
Eligibility
8 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
9
States / cities
Phoenix, Arizona • La Jolla, California • Aurora, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 19, 2026 · Synced Oct 30, 2026, 2:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Down Syndrome Metabolic Health Study

NCT01821300
View directory record Official record
Conditions
Down Syndrome, Trisomy 21
Interventions
Not listed
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
10 Years to 20 Years
Enrollment
257 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 31, 2019 · Synced Oct 30, 2026, 2:39 PM EDT