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ClinicalTrials.gov public records Last synced Sep 11, 2026, 3:55 PM EDT

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Showing 1–24 of 554 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Observational study; no interventions Clear all
Completed No phase listed Observational Accepts healthy volunteers Results available

Undiagnosed Hepatitis C Infection in an Urban Hospital

NCT01957085
View directory record Official record
Conditions
Hepatitis C
Interventions
observation only
Other
Lead sponsor
Temple University
Other
Eligibility
18 Years and older
Enrollment
366 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 23, 2020 · Synced Sep 11, 2026, 3:55 PM EDT
Enrolling by invitation No phase listed Observational

Evaluating the Efficacy of Intravenous Acetaminophen (IV Tylenol) in Reducing Pain and Agitation in Pediatric Patients Undergoing Elective Tonsillectomy and/or Adenoidectomy

NCT07576985
View directory record Official record
Conditions
Tonsillectomy, Adenoidectomy
Interventions
No Intervention: Observational Cohort
Other
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
Up to 8 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Functional Connectivity in Alcohol Use Disorder

NCT02877849
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
MRI: Brain Imaging data collection
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 5, 2019 · Synced Sep 11, 2026, 3:55 PM EDT
Recruiting No phase listed Observational

The Gut Microbiome and Serum Metabolites as a Biological Mechanism Underlying Pain in Kidney Transplantation

NCT06206486
View directory record Official record
Conditions
Kidney Transplant Symptoms, Gut Microbiome
Interventions
no intervention, observational
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

High-Tc Susceptometer to Monitor Transfusional Iron Overload

NCT01241357
View directory record Official record
Conditions
Transfusional Iron Overload, Thalassemia Major, Sickle Cell Disease, Myelodysplastic Syndromes, Aplastic Anemia
Interventions
Hepatic biomagnetic susceptibility measurement
Device
Lead sponsor
Columbia University
Other
Eligibility
5 Years to 80 Years
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 20, 2016 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational

Analysis of Stroke Rehabilitation Outcomes

NCT02876783
View directory record Official record
Conditions
Stroke
Interventions
Observational - No intervention
Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 100 Years
Enrollment
273 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 30, 2020 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational

Assessment of Stroke Volume in Shock Using Echocardiography Versus Bioreactive Impedance

NCT07020637
View directory record Official record
Conditions
Shock, Critical Illness
Interventions
Cheetah NICOM
Device
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years to 90 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Sep 11, 2026, 3:55 PM EDT
Not yet recruiting No phase listed Observational

Prospective Natural History Study of POLG Disease

NCT07775872
View directory record Official record
Conditions
PolG, Primary Mitochondrial Myopathy
Interventions
Not listed
Lead sponsor
The POLG Foundation
Other
Eligibility
Up to 75 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
6
States / cities
San Diego, California • Aurora, Colorado • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pediatric Type 1 Diabetes and Neurocognitive Complications Cohort Study

NCT04135365
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
neurocognitive assessment, neuroimaging assessment
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
6 Years to 11 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 31, 2022 · Synced Sep 11, 2026, 3:55 PM EDT
Withdrawn No phase listed Observational

Mucopolysaccharidosis Type II Observational

NCT04591834
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
Observational
Other
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
1 Month to 8 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
2
States / cities
Oakland, California • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 9, 2022 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational

Three-year Follow-up Study of Subjects Who Participated in a Previous Lambda (BMS-914143) Chronic Hepatitis C Clinical Trial

NCT01525810
View directory record Official record
Conditions
Hepatitis C
Interventions
Peginterferon Lambda-1a (BMS-914143)
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
17
States / cities
La Jolla, California • New Haven, Connecticut • Orlando, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 25, 2015 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Research Registry for Neonatal Lupus

NCT00074373
View directory record Official record
Conditions
Neonatal Lupus, Systemic Lupus Erythematosus, Sjogren's Syndrome, Congenital Heart Block
Interventions
No intervention; observational
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 2, 2023 · Synced Sep 11, 2026, 3:55 PM EDT
Recruiting No phase listed Observational

Pilot Study to Evaluate the Long-term Chronic Care of Patients Who Could or do Utilize an Osseointegrated Device (OID)

NCT04899037
View directory record Official record
Conditions
Hearing Loss, Conductive, Hearing Loss, Mixed, Deafness, Unilateral
Interventions
No intervention
Other
Lead sponsor
University of South Florida
Other
Eligibility
18 Years to 85 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 11, 2026, 3:55 PM EDT
Completed Not applicable Interventional

Better Outcomes for Anticoagulation Treatment Through Observation of Atrial Rhythm

NCT03515083
View directory record Official record
Conditions
Non-valvular Atrial Fibrillation
Interventions
Alive Cor Kardia mobile electrocardiogram monitor
Device
Lead sponsor
Saint Luke's Health System
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 11, 2023 · Synced Sep 11, 2026, 3:55 PM EDT
Recruiting Phase 2 Interventional

GLP-1 Agonist Therapy in Cystic Fibrosis-Related Glucose Intolerance

NCT04731272
View directory record Official record
Conditions
Cystic Fibrosis, Pancreatic Insufficiency, Abnormal Glucose Tolerance, Diabetes
Interventions
Dulaglutide 0.75Mg/0.5Ml Inj Pen
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
2
States / cities
Aurora, Colorado • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Longer-Acting PrEP in Transgender and Gender Diverse Texans

NCT05044286
View directory record Official record
Conditions
HIV-1-infection
Interventions
no intervention
Other
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 100 Years
Enrollment
565 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 27, 2023 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Development of a Novel Human In Vitro Sarcoidosis Model

NCT01857401
View directory record Official record
Conditions
Sarcoidosis
Interventions
No intervention, observational study only
Other
Lead sponsor
Elliott Crouser MD
Other
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Draw-10: A Weekly Blood Draw Study to Understand the Biological Variability of Plasma pTau-217

NCT06742944
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Not listed
Lead sponsor
Banner Health
Other
Eligibility
50 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Phoenix, Arizona • Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Sep 11, 2026, 3:55 PM EDT
Recruiting No phase listed Observational

Optimizing Nutrition and Milk (Opti-NuM) Project

NCT06870981
View directory record Official record
Conditions
Very Low Birth Weight Baby, Early Nutrition and the Preterm Infant, Nutritional Requirements, Human Milk Fortification, Human Milk Microbiome, Human Milk Feeding, Human Milk Nutrition, Growth &Amp; Development
Interventions
Opti-NuM is an observational secondary use of data/samples study, the investigators will analyze information and specimens from the MaxiMoM platform RCTs. No interventions form part of this study.
Other
Lead sponsor
The Hospital for Sick Children
Other
Eligibility
1 Hour to 21 Days
Enrollment
1,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2027
U.S. locations
2
States / cities
Palo Alto, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Sep 11, 2026, 3:55 PM EDT
Recruiting Phase 4 Interventional

Placement of Antibiotic Powder in Wounds During the Emergency Room

NCT03765567
View directory record Official record
Conditions
Open Fracture
Interventions
Vancomycin
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 89 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 31, 2025 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Multi-omic Approach to Evaluate and Characterize the Polycystic Ovary Syndrome (PCOS) Phenotype

NCT04981275
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
No intervention study
Other
Lead sponsor
Onegevity Health
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 31, 2023 · Synced Sep 11, 2026, 3:55 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

PREHEVBRIO Pregnancy Outcomes Registry

NCT06097312
View directory record Official record
Conditions
Vaccine Exposure During Pregnancy
Interventions
Data collection
Other
Lead sponsor
VBI Vaccines Inc.
Industry
Eligibility
Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2032
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 11, 2026, 3:55 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Comparison Of Radiation Exposure To Patients During Endoscopic Retrograde Cholangiopancreatography (ERCP) Performed By Endoscopists Trained In Judicious Use Of Fluoroscopy With Those Without Formal Training

NCT03525353
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
Endoscopic retrograde cholangiopancreatography - No Intervention have been used other than standard of care
Other
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 100 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 11, 2021 · Synced Sep 11, 2026, 3:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Actigraphy in Pediatric Pulmonary Hypertension

NCT02909608
View directory record Official record
Conditions
Pediatric Pulmonary Hypertension
Interventions
No interventions / observations only
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
8 Years to 14 Years
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
2
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 6, 2021 · Synced Sep 11, 2026, 3:55 PM EDT