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ClinicalTrials.gov public records Last synced Oct 17, 2026, 1:13 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 648 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Observational Study: No intervention Clear all
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Biomarker-estimated Flavanol Intake in Davis (FID)

NCT06086145
View directory record Official record
Conditions
Healthy, Diet, Adults
Interventions
No intervention
Other
Lead sponsor
University of California, Davis
Other
Eligibility
25 Years to 75 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
Active, not recruiting No phase listed Observational

A Study to Assess Maternal and Fetal Outcomes After Taking Prucalopride During Pregnancy

NCT04961840
View directory record Official record
Conditions
Constipation, Pregnancy
Interventions
No Intervention
Other
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 44 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
Completed No phase listed Observational

Impact of Pre-transplant Anti-fibrotic Therapy for IPF Upon Lung Transplant Outcomes

NCT04316780
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis
Interventions
Retrospective observational study- no intervention to occur.
Other
Lead sponsor
Steward St. Elizabeth's Medical Center of Boston, Inc.
Other
Eligibility
Not listed
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
8
States / cities
Iowa City, Iowa • Boston, Massachusetts • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated May 20, 2021 · Synced Oct 17, 2026, 1:13 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Auditory EEG and Behavioral Assessments in Individuals With Rett Syndrome

NCT07569445
View directory record Official record
Conditions
Rett Syndrome
Interventions
Electroencephalogram (EEG) Recording
Procedure
Lead sponsor
University of Rochester
Other
Eligibility
2 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
Completed No phase listed Observational

Incidence and Predictors of Opioid Overdose and Death Among Long-Term Users of Opioid Analgesics

NCT02662153
View directory record Official record
Conditions
Opioid Overdose
Interventions
Observation only
Other
Lead sponsor
Member Companies of the Opioid PMR Consortium
Industry
Eligibility
18 Years to 79 Years
Enrollment
808,455 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
4
States / cities
Wilmington, Delaware • Boston, Massachusetts • Portland, Oregon + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 14, 2022 · Synced Oct 17, 2026, 1:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Usability Evaluation of the Intelligent Fingerprinting Drug Screening System

NCT07758777
View directory record Official record
Conditions
Healthy Adult Participants
Interventions
Diagnostic procedures, Drug Screening
Diagnostic Test · Device
Lead sponsor
Intelligent Bio Solutions Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Marlton, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
Completed No phase listed Observational

Long-term Recovery: Longitudinal Study of Neuro-behavioral Markers of Recovery and Precipitants of Relapse

NCT04788004
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Online survey
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
18 Years and older
Enrollment
733 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Collecting Data on Retinal Blood Blood Flow and Blood Vessel Shape/Appearance Using an Investigational Device, XyCAM CRE, and to Then Compare Those Images With Images Collected From a Patient's Routine Clinical Examination.

NCT07641738
View directory record Official record
Conditions
Microvascular Disease, Retinal Disease
Interventions
XyCAM CRE Imaging
Device
Lead sponsor
Stuart Terry Eye Associates
Other
Eligibility
21 Years to 100 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
Completed No phase listed Observational

An Observational Study to Evaluate Patient-Reported Experiences of Living With Moderate-to-Severe Plaque Psoriasis

NCT01555606
View directory record Official record
Conditions
Moderate to Severe Plaque Psoriasis
Interventions
No intervention
Other
Lead sponsor
Janssen Biotech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
9
States / cities
Phoenix, Arizona • Sacramento, California • Ann Arbor, Michigan + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2015 · Synced Oct 17, 2026, 1:13 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Wellness of Osteopathic Medical Students Throughout Their Training (Well-COM)

NCT06552338
View directory record Official record
Conditions
Students, Medical
Interventions
Observational
Other
Lead sponsor
Sam Houston State University
Other
Eligibility
Not listed
Enrollment
650 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2044
U.S. locations
1
States / cities
Conroe, Texas
Source: ClinicalTrials.gov public record
Updated May 18, 2025 · Synced Oct 17, 2026, 1:13 PM EDT
Completed No phase listed Observational

Natural History Study of ENPP1 Deficiency and the Early-onset Form of ABCC6 Deficiency

NCT05050669
View directory record Official record
Conditions
Ectonucleotide Pyrophosphatase/phosphodiesterase1 Deficiency, Generalized Arterial Calcification of Infancy, Autosomal Recessive Hypophosphatemic Rickets, Adenosine Triphosphate Binding Cassette Transporter Protein Subfamily C Member 6
Interventions
No Intervention for this observational study
Other
Lead sponsor
Inozyme Pharma
Industry
Eligibility
2 Years to 18 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
3
States / cities
Boston, Massachusetts • Philadelphia, Pennsylvania • Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Measuring Cortisol Levels in Persons With Parkinson's (PD)

NCT02727270
View directory record Official record
Conditions
Parkinson Disease, Huntington Disease
Interventions
No Intervention - Observational Study
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 99 Years
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2023
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 22, 2023 · Synced Oct 17, 2026, 1:13 PM EDT
Recruiting No phase listed Observational

Enhancing Diabetes Care: Exposome &Amp; Sensors

NCT06989008
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Observational Study: Relationships Among Glucose, Physical Activity and Environmental Influences
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 17, 2026, 1:13 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Prospective Evaluation of Performance of Disposable Elevator Cap Duodenoscope During ERCP in Clinical Practice

NCT04447976
View directory record Official record
Conditions
ERCP
Interventions
Not listed
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 12, 2021 · Synced Oct 17, 2026, 1:13 PM EDT
Recruiting No phase listed Observational

Rare Glycogen Storage Diseases Natural History Study

NCT06795152
View directory record Official record
Conditions
Glycogen Storage Disease, GSD Type 0A, GSD Type 0B, GSD VII, Tarui Disease, GSD X, GSD XII, GSD XIII, GSD XV, PGBM2, PRKAG2, Danon Disease, Polyglucosan Body Myopathy Type 1, Polyglucosan Body Myopathy Type 2, RBCK1 Deficiency
Interventions
No intervention
Other
Lead sponsor
Duke University
Other
Eligibility
0 Years to 90 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2034
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 17, 2026, 1:13 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 8, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
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 17, 2026, 1:13 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 17, 2026, 1:13 PM EDT
Completed No phase listed Observational

Study Comparing Ultrasound-guided FICNB Block to Systemic Analgesia in Treatment of Pediatric Femur Fracture

NCT05947292
View directory record Official record
Conditions
Femur Fracture
Interventions
Ultrasound-Guided Fascia Iliaca Compartment Nerve Block
Procedure
Lead sponsor
Zachary Binder
Other
Eligibility
4 Years to 17 Years
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
9
States / cities
San Diego, California • San Francisco, California • Denver, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Oct 17, 2026, 1:13 PM EDT
Recruiting Not applicable Interventional

Real-component vs All-cement Articulating Spacers for Periprosthetic Knee Infection

NCT06293352
View directory record Official record
Conditions
Prosthetic-joint Infection, Knee Infection, Arthroplasty Complications, Joint Infection, Arthroplasty, Replacement, Knee
Interventions
All-cement articulating spacer, Durable, real-component articulating spacer, Rigid Spacer
Device
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 17, 2026, 1:13 PM EDT
Completed No phase listed Observational Results available

Impact of Prevnar 13 on Ear Infections in Children

NCT01272999
View directory record Official record
Conditions
Acute Otitis Media, Mastoiditis
Interventions
No intervention
Other
Lead sponsor
Pfizer
Industry
Eligibility
0 Years and older
Enrollment
391 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
8
States / cities
Little Rock, Arkansas • Los Angeles, California • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated May 23, 2023 · Synced Oct 17, 2026, 1:13 PM EDT
Completed No phase listed Observational

Neuropathy Walks (Cross-sectional)

NCT04889521
View directory record Official record
Conditions
HIV Infections
Interventions
No intervention
Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 89 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
2
States / cities
Blackwood, New Jersey • Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 7, 2025 · Synced Oct 17, 2026, 1:13 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

AUD Biomarkers Study (Proteomic and Genomic Analysis of Biospecimens)

NCT05889806
View directory record Official record
Conditions
Oncology, Hematologic Malignancy, Gastro-Intestinal Disorder, Autoimmune Diseases, Pregnancy Related, Infectious Disease, Cardiovascular Diseases, Genitourinary Disease, Renal Disease
Interventions
Observational Study Only. NO Intervention.
Other
Lead sponsor
Audubon Bioscience
Industry
Eligibility
18 Years and older
Enrollment
10,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2043
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Jun 5, 2023 · Synced Oct 17, 2026, 1:13 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 17, 2026, 1:13 PM EDT