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ClinicalTrials.gov public records Last synced Oct 4, 2026, 3:32 PM EDT

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

Showing 49–72 of 187 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: No Intervention for this observational study Clear all
Recruiting Not applicable Interventional

Percutaneous Intervention Versus Observational Trial of Arterial Ductus in Low Weight Infants

NCT05547165
View directory record Official record
Conditions
Ductus Arteriosus, Patent
Interventions
Percutaneous Patent Ductus Arteriosus Closure (PPC), Responsive Management Intervention, Echocardiogram, cardiac
Device · Combination Product · Diagnostic Test
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
7 Days to 32 Days
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
24
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 19 more
Source: ClinicalTrials.gov public record
Updated Mar 30, 2025 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational

Patients' Perspectives of Factors That Support the Management of Peripheral Arterial Disease for Improved Outcomes

NCT01419418
View directory record Official record
Conditions
Peripheral Arterial Diseases
Interventions
Not listed
Lead sponsor
VA Eastern Colorado Health Care System
Federal
Eligibility
18 Years to 89 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 23, 2017 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Acorai Machine Learning Generalization (MLG) Study

NCT05835024
View directory record Official record
Conditions
Heart Failure
Interventions
Acorai Sensor Data Collection (ASDC) system 1.0 - Phase 1, Acorai Sensor Data Collection (ASDC) system 1.0 - Phase 2
Device
Lead sponsor
Acorai AB
Industry
Eligibility
18 Years and older
Enrollment
1,602 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
10
States / cities
Conway, Arkansas • Little Rock, Arkansas • Jacksonville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2024 · Synced Oct 4, 2026, 3:32 PM EDT
Not listed No phase listed Observational

Sensor-based Characterization of Depression

NCT04370002
View directory record Official record
Conditions
Unipolar Depression
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 3, 2023 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Characterization of Adults for Asthma Microbiome Research Studies

NCT02887911
View directory record Official record
Conditions
Asthma, Healthy
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 75 Years
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 20, 2022 · Synced Oct 4, 2026, 3:32 PM EDT
Active, not recruiting No phase listed Observational

An Observational Study of the Progression of Intermediate Age-Related Macular Degeneration

NCT05300724
View directory record Official record
Conditions
Age-Related Macular Degeneration
Interventions
No intervention
Other
Lead sponsor
Genentech, Inc.
Industry
Eligibility
50 Years to 94 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
46
States / cities
Springdale, Arkansas • Encino, California • Fullerton, California + 40 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 4, 2026, 3:32 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 4, 2026, 3:32 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Advancing Stillbirth Prevention Through Innovative Risk Evaluation (ASPIRE) Clinical Study

NCT07669935
View directory record Official record
Conditions
GDM, Preterm Preeclampsia, Preeclampsia, Fetal Growth Restriction (FGR), Pregnancy Complications
Interventions
None (this is an observational study with no intervention)
Other
Lead sponsor
Medicines360
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
5,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
2
States / cities
Baton Rouge, Louisiana • Potsdam, New York
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 4, 2026, 3:32 PM EDT
Recruiting No phase listed Observational

Alternative Splicing Based Prediction of Chemotherapy Response in Gastric Cancer

NCT07587229
View directory record Official record
Conditions
Gastric Cancer
Interventions
Observational study (no intervention)
Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
329 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 4, 2026, 3:32 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Dystonia Genotype-Phenotype Correlation

NCT03428009
View directory record Official record
Conditions
Dystonia, Dystonia; Idiopathic, Dystonia, Primary, Dystonia, Secondary, Dystonia, Familial, Dystonia Disorder, Dystonias, Sporadic, Dystonia; Orofacial, Dystonia Lenticularis, Dystonia, Paroxysmal, Dystonia 6, Dystonia 5, Dystonia 8, Dystonia 9, Dystonia 19, Dystonia 10, Dystonia 11, Dystonia 20, Dystonia 12, Dystonia, Focal, Dystonia of Head, Dystonia, Diurnal
Interventions
Magnetic Resonance Imaging
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
11 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2027
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational

A Study of Label Compliance for Attention Deficit/Hyperactivity Disorder (ADHD) Medications in Japan

NCT04113551
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
MPH (Concerta), MPH (Ritalin), Atomoxetine (ATO), Guanfacine (GFC)
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
Not listed
Enrollment
17,418 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Titusville, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 27, 2025 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational

Relationship Between Alcohol Use Disorders and Cortisol Levels in Patients With Sepsis

NCT00615862
View directory record Official record
Conditions
Sepsis, Alcoholism
Interventions
Observational study; no interventions
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 22, 2012 · Synced Oct 4, 2026, 3:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pilot Study on Ambulatory Intraocular Pressure and Blood Pressure Monitoring in Glaucoma

NCT01912599
View directory record Official record
Conditions
Normal-Tension Glaucoma
Interventions
Sensimed Triggerfish, Blood Pressure
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 17, 2016 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational

Voice Technology to Identify Opioid Use

NCT07603778
View directory record Official record
Conditions
Opioid Use
Interventions
Not applicable- observational study
Other
Lead sponsor
Tenvos Inc.
Industry
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

UTSW Depression Cohort: A Longitudinal Study of Depression

NCT02697487
View directory record Official record
Conditions
Depression, Other Diagnoses, Comorbidities, and Complications
Interventions
No treatment
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
10 Years to 89 Years
Enrollment
447 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2023 · Synced Oct 4, 2026, 3:32 PM EDT
Not yet recruiting Not applicable Interventional

The Effect of Vagus Nerve Stimulation on Pain and Functional Activities in Individuals With Chronic Widespread Pain

NCT07080749
View directory record Official record
Conditions
Widspread Chronic Pain, Fibromyalgia
Interventions
Vagal nerve stimulation through deep exhalation exercise, Vagal nerve stimulation through ear electrical stimulation, No intervention (observational study)
Other
Lead sponsor
University of North Georgia
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Dahlonega, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational

A Study of the Incidence of Intraocular Inflammation and Suspected Endophthalmitis Among Patients Treated With Aflibercept, Vial and Pre-filled Syringe, 2014-2022

NCT05791695
View directory record Official record
Conditions
Intraocular Inflammation, Suspected Endophthalmitis
Interventions
Non Applicable
Other
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
155,413 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Tarrytown, New York
Source: ClinicalTrials.gov public record
Updated Dec 1, 2023 · Synced Oct 4, 2026, 3:32 PM EDT
Not listed No phase listed Observational

Assessing the Predictive Value of High Frequency Algorithm of PURE EP for Low Amplitude Signal Detection

NCT05450302
View directory record Official record
Conditions
Cardiac Arrhythmias
Interventions
PURE EP (Observational Study)
Other
Lead sponsor
Kansas City Heart Rhythm Research Foundation
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 10, 2023 · Synced Oct 4, 2026, 3:32 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Feasibility and Clinical Utility of Paired Non-Invasive Hemodynamic and Tissue Oximetry Monitoring to Detect Limb Ischemia in Lithotomy-Positioned Surgeries

NCT07387653
View directory record Official record
Conditions
Neuropathy;Peripheral, Limb Ischemia
Interventions
Lower-Extremity Perfusion Monitoring
Other
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 4, 2026, 3:32 PM EDT
Not listed No phase listed Observational

Hydroxymethylation, Incident Type 2 Diabetes and Incident Obesity

NCT05769439
View directory record Official record
Conditions
Incident Type 2 Diabetes, Incident Obesity
Interventions
No intervention in an observational study
Other
Lead sponsor
Des Moines University
Other
Eligibility
40 Years to 60 Years · Male only
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Des Moines, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 15, 2023 · Synced Oct 4, 2026, 3:32 PM EDT
Terminated No phase listed Observational

B-cell Depletion Therapy With Rituximab for Thyroid Eye Disease

NCT02316691
View directory record Official record
Conditions
Thyroid Eye Disease
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 75 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Oct 4, 2026, 3:32 PM EDT
Recruiting No phase listed Observational

Evaluating Minimal Residual Disease (MRD) Through Longitudinal Circulating Tumor DNA (ctDNA) Profiling in Breast Malignancies

NCT07211178
View directory record Official record
Conditions
Breast Cancer, TNBC - Triple-Negative Breast Cancer, HR Positive/HER-2 Negative Breast Cancer, HER2 + Breast Cancer, Early Stage Breast Cancer
Interventions
There are no interventions in this observational study.
Other
Lead sponsor
Tempus AI
Industry
Eligibility
18 Years to 99 Years
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2033
U.S. locations
16
States / cities
Birmingham, Alabama • Whittier, California • Weston, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Oct 4, 2026, 3:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Reward Processing and Depressive Subtypes: Identifying Neural Biotypes

NCT06080646
View directory record Official record
Conditions
Depression, Depressive Disorder, Major Depressive Disorder, Major Depressive Episode, Depressive Symptoms, Anhedonia
Interventions
cross-sectional MRI and EEG assessments (NO INTERVENTION)
Other
Lead sponsor
San Francisco Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 70 Years
Enrollment
158 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 4, 2026, 3:32 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Applications of MRI in Kidney Disease

NCT02832505
View directory record Official record
Conditions
Chronic Kidney Disease, End-stage Kidney Disease
Interventions
No intervention but only observational
Other
Lead sponsor
University of Minnesota
Other
Eligibility
45 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 25, 2025 · Synced Oct 4, 2026, 3:32 PM EDT