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ClinicalTrials.gov public records Last synced Oct 21, 2026, 6:16 PM EDT

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Showing 1–24 of 372 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Metabolites Clear all
Completed No phase listed Observational

Metabolomics for Biomarker Discovery in Children With EoE

NCT03107819
View directory record Official record
Conditions
Eosinophilic Esophagitis
Interventions
Plasma and urine metabolomics
Diagnostic Test
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
2 Years to 18 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 1, 2018 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Biosynthesis of PGD2 in Vivo

NCT01275300
View directory record Official record
Conditions
Hyperlipidemia
Interventions
Aspirin, Placebo, Niacin
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 70 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

The Pharmacokinetics of Ketamine in the Breast Milk of Lactating Women

NCT04285684
View directory record Official record
Conditions
Ketamine, Lactation
Interventions
ketamine in lactation
Drug
Lead sponsor
The Ketamine Research Foundation
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
San Anselmo, California
Source: ClinicalTrials.gov public record
Updated Dec 13, 2021 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 1 Interventional Results available

A Study of LY2835219 in Participants With Cancer

NCT02117648
View directory record Official record
Conditions
Neoplasm, Neoplasm Metastasis
Interventions
Abemaciclib, Clarithromycin
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 7, 2019 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 2 Interventional Results available

Use of β-hydroxy-β-methylbutyrate to Counteract Muscle Loss in Men With Prostate Cancer on Androgen Ablation

NCT01607879
View directory record Official record
Conditions
Prostate Cancer
Interventions
Standard of care ADT + (HMB + arginine + glutamine), Standard of care ADT
Drug · Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
60 Years and older · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 22, 2023 · Synced Oct 21, 2026, 6:16 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 17, 2026 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase 1 Test-retest Evaluation of [18F]MNI-958 PET

NCT03545789
View directory record Official record
Conditions
Healthy Volunteers, Alzheimer Disease, Progressive Supranuclear Palsy
Interventions
[18F]MNI-958
Drug
Lead sponsor
Invicro
Other
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 17, 2020 · Synced Oct 21, 2026, 6:16 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Polyethylene Glycol Safety in Children

NCT05424757
View directory record Official record
Conditions
Polyethylene Glycols, Children, Only
Interventions
PEG 3350
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
0 Years to 16 Years
Enrollment
158 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Collect Samples for MIST Analysis of Zibotentan and Bioavailability of Zibotentan and Dapagliflozin in Heatlhy Participants

NCT04991571
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
Zibotentan (Treatment A), Dapagliflozin (Treatment A), Zibotentan/Dapagliflozin - Formulation 1 (Treatment B), Zibotentan/Dapagliflozin - Formulation 2 (Treatment C)
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 50 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Brooklyn, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 23, 2021 · Synced Oct 21, 2026, 6:16 PM EDT
Completed No phase listed Observational

Study of Urine Samples From Women With Newly Diagnosed Breast Cancer Enrolled on Clinical Trial UNMC-08105

NCT00959244
View directory record Official record
Conditions
Breast Cancer
Interventions
high performance liquid chromatography, laboratory biomarker analysis, mass spectrometry, medical chart review
Other
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 1, 2023 · Synced Oct 21, 2026, 6:16 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

MR(Magnetic Resonance) Imaging of Neurotransmitters in Chronic Pain

NCT01620775
View directory record Official record
Conditions
Chronic Low Back Pain, Diabetic Peripheral Neuropathy, Knee Osteoarthritis
Interventions
MRIs, Pain testing
Other
Lead sponsor
University of Michigan
Other
Eligibility
30 Years to 70 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 4, 2018 · Synced Oct 21, 2026, 6:16 PM EDT
Completed No phase listed Observational

Levels of Bisphenol A in Urine and Saliva Following Placement of Composite Restorations

NCT00339339
View directory record Official record
Conditions
Dental Restorations
Interventions
Not listed
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
20 Years to 60 Years
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2013
U.S. locations
2
States / cities
Rockville, Maryland • Biloxi, Mississippi
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Black Raspberry Phytochemicals on Oral Microbiome in Current Smokers and Non-smokers

NCT02439255
View directory record Official record
Conditions
Healthy Subject, Tobacco Use Disorder
Interventions
Laboratory Biomarker Analysis, Phytochemical, Placebo, Screening Questionnaire Administration
Other · Dietary Supplement
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years to 50 Years
Enrollment
148 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 5, 2022 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Open-label, Single-centre Study Evaluating the Pharmacokinetics of Digoxin Alone and When Administered at Various Doses of Ezogabine/Retigabine in Healthy Adults. The Pharmacokinetics of Ezogabine/Retigabine and the N-acetyl Metabolite of Ezogabine/Retigabine (NAMR) Will Also be Assessed

NCT01583036
View directory record Official record
Conditions
Epilepsy
Interventions
Digoxin Alone, Digoxin + Retigabine
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect on Acetaminophen Metabolism by Liquid Formulations

NCT01246713
View directory record Official record
Conditions
Acetaminophen Metabolism, Acetaminophen Poisoning, Drug Metabolism by Excipients
Interventions
Acetaminophen liquid formulation, Acetaminophen solid formulation
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 8, 2017 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Not applicable Interventional

Resveratrol-Leucine Metabolite Synergy in Pre-diabetes

NCT01593605
View directory record Official record
Conditions
Impaired Glucose Tolerance
Interventions
Resveratrol, resveratrol /HMB, Placebo treatment
Dietary Supplement · Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 20, 2013 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 4 Interventional Results available

Allopurinol Add-on Treatment for Refractory Mania

NCT00643123
View directory record Official record
Conditions
Bipolar Disorder, Mixed Mania, Treatment-Resistant Mania
Interventions
Allopurinol, Placebo
Drug · Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Relacorilant Food Effect Study in Healthy Subjects

NCT03442621
View directory record Official record
Conditions
Healthy, Food-drug Interaction
Interventions
Relacorilant Fasted, Relacorilant with a high fat breakfast, Relacorilant with a moderate breakfast
Drug
Lead sponsor
Corcept Therapeutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated May 17, 2018 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Polymorphic Effects of Cytochrome P450 3A5 on Pharmacokinetics of Maraviroc and Its Metabolites

NCT01980329
View directory record Official record
Conditions
Cytochrome P450 CYP3A5 Enzyme Polymorphism, Healthy Subjects, Pharmacokinetics of Maraviroc
Interventions
Maraviroc
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Dietary Fiber on Fecal Microbiota and Metabolism

NCT01518088
View directory record Official record
Conditions
Focus of the Study is on Gut Health
Interventions
Dietary Fiber
Dietary Supplement
Lead sponsor
Ingredion Incorporated
Industry
Eligibility
20 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Apr 21, 2016 · Synced Oct 21, 2026, 6:16 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Trifecta Research Study

NCT07717866
View directory record Official record
Conditions
PTSD - Post Traumatic Stress Disorder, Cognitive Dysfunction, Brain Injury, Depression - Major Depressive Disorder, Suicidal Ideation
Interventions
Magnetic e-Resonance Therapy (MeRT), Ibogaine Hydrochloride with Magnesium Sulfate, 5-methoxy-N,N-dimethyltryptamine, Physiological Supplementation
Device · Drug
Lead sponsor
Axial Therapeutic Research
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Northridge, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 1 Interventional

Pharmacokinetic Study of Makena® (Hydroxyprogesterone Caproate Injection, 250 mg/mL) and Its Metabolites in Blood

NCT01899846
View directory record Official record
Conditions
Pregnancy
Interventions
Hydroxyprogesterone caproate 250 mg/ml
Drug
Lead sponsor
Lumara Health, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
6
States / cities
Lake Worth, Florida • Idaho Falls, Idaho • Chicago, Illinois + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2014 · Synced Oct 21, 2026, 6:16 PM EDT
Not yet recruiting No phase listed Observational

Methadone Dose Monitoring With a Remote Medication Monitor

NCT06837571
View directory record Official record
Conditions
Methadone Toxicity, Methadone Overdose, Pain, Chronic, Drug Metabolism, Poor, CYP2D6-Related, Metabolism Medication Toxicity
Interventions
Measurement of Methadone in the Interstitial Fluid (ISF) before and after prescribed dose taken ex vivo, Measurement of Methadone in the Interstitial Fluid before and after prescribed dose taken in vivo, ISF Extraction Device 2
Diagnostic Test · Drug · Device
Lead sponsor
Cari Health Inc.
Other
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Lemon Grove, California
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Oct 21, 2026, 6:16 PM EDT
Completed Phase 1 Interventional

Study to Evaluate the Exposures of Lofexidine and Its Major Metabolites in Subjects Seeking Buprenorphine Dose Reduction

NCT02801357
View directory record Official record
Conditions
Substance Withdrawal Syndrome, Opiate Addiction, Opiate Dependence
Interventions
lofexidine administration in subjects seeking buprenorphine dose reduction
Drug
Lead sponsor
USWM, LLC (dba US WorldMeds)
Industry
Eligibility
18 Years to 64 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 26, 2017 · Synced Oct 21, 2026, 6:16 PM EDT