Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 6, 2026, 2:20 AM EDT

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

Showing 1–15 of 15 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: O15 Clear all
Active, not recruiting Phase 3 Interventional

RAdiolabeled Perfusion to Identify Coronary Artery Disease Using WAter To Evaluate Responses of Myocardial FLOW (RAPID-WATER-FLOW)

NCT05134012
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
[O-15]-Water PET Myocardial Perfusion Imaging (MPI)
Drug
Lead sponsor
MedTrace Pharma A/S
Industry
Eligibility
18 Years and older
Enrollment
215 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
6
States / cities
Iowa City, Iowa • Rochester, Minnesota • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 6, 2026, 2:20 AM EDT
Terminated Not applicable Interventional Results available

Multi-Tracer Positron Emission Tomography in Patients With Solid Tumors

NCT01243333
View directory record Official record
Conditions
Malignant Neoplasm
Interventions
[F-18]fluorodeoxyglucose, [F-18]fluorothymidine, Positron Emission Tomography, Water O-15
Radiation · Procedure
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Sep 6, 2026, 2:20 AM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers

A Noninvasive Arterial Input Estimation Method for O-15 PET and Integrated PET/MR Scanning

NCT03806751
View directory record Official record
Conditions
Validation of a New Noninvasive Method to Obtain the Arterial Input Function (AIF) Directly by PET Imaging
Interventions
[O-15]Water, Acetazolamide
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 29, 2024 · Synced Sep 6, 2026, 2:20 AM EDT
Recruiting Not applicable Interventional

Cochlear Implant Speech in Noise Processing

NCT06860152
View directory record Official record
Conditions
Hearing Loss, Adult-Onset, Speech Intelligibility, Hearing Loss, Extreme
Interventions
Cochlear implant
Device
Lead sponsor
Craig D. Workman, PhD
Other
Eligibility
18 Years to 99 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 6, 2026, 2:20 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

PET Scanning in Parkinson s Disease

NCT00024622
View directory record Official record
Conditions
Schizophrenia, Parkinson's Disease
Interventions
18F-Fluoro-L-dopa, O-15 Water
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 90 Years
Enrollment
502 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 6, 2026, 2:20 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Direct Current Polarization on Brain Function

NCT00088569
View directory record Official record
Conditions
Healthy
Interventions
0-15 Water
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 6, 2026, 2:20 AM EDT
Recruiting No phase listed Observational

Registering Genomics and Imaging of Tumors (ReGIT)

NCT05386043
View directory record Official record
Conditions
Glioma
Interventions
FET F-18, O-15 Radioisotope, CT scan, MRI with gadolinium-based contrast, Biopsy Collection
Drug · Procedure
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2032
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Sep 6, 2026, 2:20 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Imaging in Elderly People and Individuals With Alzheimer's Disease

NCT00001917
View directory record Official record
Conditions
Alzheimer's Disease, Healthy
Interventions
O15, [F-18] FP-TZTP
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 6, 2026, 2:20 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

New MRI Methods Applied to Heart Failure With Preserved Ejection Fraction (HFpEF)

NCT04600115
View directory record Official record
Conditions
MRI Scans
Interventions
Adenosine, Regadenoson, O-15 labeled radioactive water, MRI, PET Imaging
Drug · Device
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2027
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 6, 2026, 2:20 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Connection Between Areas in the Brain of Blind Patients

NCT00001926
View directory record Official record
Conditions
Blindness, Brain Mapping, Healthy
Interventions
O15, Cadwell rTMS
Drug · Device
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 6, 2026, 2:20 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Comparison of Quantitative MRI Perfusion Methods With Quantitative PET Perfusion Imaging

NCT02608944
View directory record Official record
Conditions
MRI Scans
Interventions
Adenosine, Regadenoson, O-15 labeled radioactive water, MRI, PET Imaging
Drug · Device
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2019
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 13, 2020 · Synced Sep 6, 2026, 2:20 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Neural Circuits in Women With Abuse and Posttraumatic Stress Disorder

NCT01681849
View directory record Official record
Conditions
PTSD
Interventions
Placebo, Paroxetine, Positron Emission Tomography (PET) Imaging
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 27, 2017 · Synced Sep 6, 2026, 2:20 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cardiac Water and Fluoromethane Cardiac PET

NCT00205127
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Cardiac PET imaging- rest and pharmacological stress
Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 40 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 28, 2012 · Synced Sep 6, 2026, 2:20 AM EDT
Completed Phase 3 Interventional Results available

Closed Loop Vagal Nerve Stimulation for Patients With Posttraumatic Stress Disorder

NCT02992899
View directory record Official record
Conditions
PostTraumatic Stress Disorder
Interventions
GammaCore/electroCore non-invasive VNS device, Sham gammaCore/electroCore, O-15 water
Device · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 70 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 13, 2021 · Synced Sep 6, 2026, 2:20 AM EDT
Completed Phase 3 Interventional Results available

Non-Invasive Vagal Nerve Stimulation in Opioid Use Disorders

NCT04556552
View directory record Official record
Conditions
Substance-Related Disorders, Substance Use Disorders, Substance Abuse, Intravenous, Substance Withdrawal, Substance Abuse, Opioid-use Disorder, Opioid Use Disorder, Severe, Opioid Use
Interventions
Non invasive VN stimulation (nVNS), Oxygen (15-O) Water, Sham Stimulation
Device · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 12, 2023 · Synced Sep 6, 2026, 2:20 AM EDT