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ClinicalTrials.gov public records Last synced Oct 26, 2026, 5:46 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 91 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: l-carnitine Clear all
Withdrawn No phase listed Observational

Therapy for Chronic Fatigue Syndrome: A Presumptive Mitochondrial Disorder

NCT01872351
View directory record Official record
Conditions
Chronic Fatigue Syndrome
Interventions
Nutraceuticals
Drug
Lead sponsor
Columbia University
Other
Eligibility
20 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 14, 2016 · Synced Oct 26, 2026, 5:46 PM EDT
Terminated No phase listed Observational

Long-Chain Fatty Acid Oxidation Disorders Online Disease Monitoring Program

NCT04812106
View directory record Official record
Conditions
Long-chain Fatty Acid Oxidation Disorders (LC-FAOD)
Interventions
No Intervention
Other
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
Not listed
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 18, 2022 · Synced Oct 26, 2026, 5:46 PM EDT
Terminated Phase 2 Interventional Results available

Open-Label Study of Perhexiline in Patients With Hypertrophic Cardiomyopathy and Moderate to Severe Heart Failure

NCT02862600
View directory record Official record
Conditions
Cardiomyopathy, Hypertrophic, Cardiomyopathy, Hypertrophic, Familial
Interventions
Perhexiline, Use of bioanalytical assay to monitor plasma levels of perhexiline
Drug · Device
Lead sponsor
Heart Metabolics Limited
Industry
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
11
States / cities
Stanford, California • Indianapolis, Indiana • Baltimore, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Oct 26, 2026, 5:46 PM EDT
Recruiting Not applicable Interventional

A Study to Improve Skeletal Muscle in Veterans With HIV

NCT06845046
View directory record Official record
Conditions
HIV, Obesity
Interventions
w-3 fatty acid, L-carnitine, Control Diet
Dietary Supplement · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
20 Years to 80 Years · Male only
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Phase 1 Interventional Results available

Carnitine Consumption and Augmentation in Pulmonary Arterial Hypertension

NCT04908397
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Familial Primary Pulmonary Hypertension, Primary Pulmonary Hypertension, Lung Diseases, Carnitine Nutritional Deficiency
Interventions
L-carnitine
Dietary Supplement
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Phase 3 Interventional

Indinavir Plus Efavirenz Plus Adefovir Dipivoxil in HIV-Infected Patients Who Have Not Had Success With Nelfinavir

NCT00002220
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Efavirenz, Levocarnitine, Adefovir dipivoxil
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
16 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
11
States / cities
Los Angeles, California • New Haven, Connecticut • Wilmington, Delaware + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Phase 2 Interventional

A Phase II, Stratified, Randomized, Double-Blind, Multi-Center Study of the Safety and Efficacy of Adefovir Dipivoxil (ADF) at Two Dose Levels in Triple Combination Therapies With Protease Inhibitors (PI) and Nucleoside Reverse Transcriptase Inhibitors (RTI) for the Treatment of HIV-Infected Patient

NCT00002184
View directory record Official record
Conditions
HIV Infections
Interventions
Nelfinavir mesylate, Levocarnitine, Adefovir dipivoxil, Saquinavir, Lamivudine, Stavudine, Zidovudine
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
16 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
13
States / cities
Phoenix, Arizona • Los Angeles, California • San Francisco, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Phase 2 Interventional Results available

Long-Chain Fatty Acid Oxidation Disorders (LC-FAOD) Extension Study for Subjects Previously Enrolled in Triheptanoin Studies

NCT02214160
View directory record Official record
Conditions
Carnitine Palmitoyltransferase (CPT I or CPT II) Deficiency, Very Long Chain Acyl-CoA Dehydrogenase (VLCAD) Deficiency, Long-chain 3-hydroxy-acyl-CoA Dehydrogenase (LCHAD) Deficiency, Trifunctional Protein (TFP) Deficiency, Carnitine-acylcarnitine Translocase (CACT) Deficiency
Interventions
UX007
Drug
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
6 Months and older
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
9
States / cities
San Francisco, California • Washington D.C., District of Columbia • Tampa, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2023 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Not applicable Interventional

Study of the Cardiovascular Vitamin, CardioLife

NCT02088307
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
CardioLife
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 90 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 22, 2016 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Not applicable Interventional

Mitochondrial Cocktail for Gulf War Illness

NCT02804828
View directory record Official record
Conditions
Gulf War Syndrome, Persian Gulf Syndrome, Mitochondrial Disorders
Interventions
Individualized mitochondrial cocktail, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
48 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Not applicable Interventional

Effects of L-Carnitine on Postprandial Clearance of Triglyceride-rich Lipoproteins in HIV Patients on HAART

NCT00386971
View directory record Official record
Conditions
Hyperlipidemia, HIV Infections
Interventions
L-carnitine, placebo
Dietary Supplement · Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 26, 2026, 5:46 PM EDT
Terminated Early Phase 1 Interventional

Effect of Acetyl-L-carnitine on Chronic Pancreatitis

NCT02538146
View directory record Official record
Conditions
Chronic Pancreatitis
Interventions
acetyl-L-carnitine 1000mg 2X per day for 3 months
Dietary Supplement
Lead sponsor
Karin High
Other
Eligibility
20 Years to 90 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Mar 10, 2017 · Synced Oct 26, 2026, 5:46 PM EDT
Completed No phase listed Observational

Carnitine, Aclycarnitine, Myocardial Function, and CRRT

NCT01941823
View directory record Official record
Conditions
Acute Renal Failure
Interventions
Not listed
Lead sponsor
Asha Moudgil
Other
Eligibility
1 Year to 21 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 23, 2020 · Synced Oct 26, 2026, 5:46 PM EDT
Not listed Early Phase 1 Interventional

Use of Levocarnitine to Reduce Asparaginase Hepatotoxicity in Patients With Acute Lymphoblastic Leukemia

NCT05501899
View directory record Official record
Conditions
Acute Lymphoblastic Leukemia, Hepatotoxicity
Interventions
Levocarnitine
Drug
Lead sponsor
Children's Hospital of Orange County
Other
Eligibility
5 Years to 29 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Aug 21, 2024 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Acetyl-L-Carnitine in the Treatment of Septic Shock

NCT00592488
View directory record Official record
Conditions
Septic Shock
Interventions
Acetyl-L-Carnitine
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 8, 2017 · Synced Oct 26, 2026, 5:46 PM EDT
Not listed Phase 2 Interventional

Safety and Effectiveness of Adding Adefovir Dipivoxil and Nelfinavir to the Anti-HIV Therapy of HIV-Infected Children

NCT00002219
View directory record Official record
Conditions
HIV Infections
Interventions
Nelfinavir mesylate, Levocarnitine, Adefovir dipivoxil
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
3 Months to 16 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
7
States / cities
St. Petersburg, Florida • New Orleans, Louisiana • Great Neck, New York + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Phase 3 Interventional

The Safety and Effectiveness of Adefovir Dipivoxil in the Treatment of HIV-Infected Patients

NCT00001082
View directory record Official record
Conditions
Cytomegalovirus Infections, HIV Infections
Interventions
Levocarnitine, Adefovir dipivoxil, Adefovir dipivoxil placebo
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
505 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 1999
U.S. locations
15
States / cities
San Francisco, California • Denver, Colorado • Washington D.C., District of Columbia + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2013 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Not applicable Interventional

Acetyl-L-Carnitine for the Treatment of NRTI-Associated Peripheral Neuropathy

NCT00050271
View directory record Official record
Conditions
HIV Infections, Peripheral Nervous System Diseases
Interventions
Acetyl-L-carnitine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2007
U.S. locations
10
States / cities
Palo Alto, California • Atlanta, Georgia • Honolulu, Hawaii + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 26, 2026, 5:46 PM EDT
Withdrawn No phase listed Observational

The Use of L-Carnitine And CoQ10 Supplements In the Treatment of Cyclic Vomiting Syndrome (CVS)

NCT00728104
View directory record Official record
Conditions
Cyclic Vomiting Syndrome
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 6, 2017 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Phase 2 Interventional

L-Carnitine to Treat Fatigue in AIDS Patients

NCT00079599
View directory record Official record
Conditions
HIV Infections, AIDS
Interventions
L-carnitine, Placebo
Drug · Other
Lead sponsor
National Institute of Nursing Research (NINR)
NIH
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 4, 2008 · Synced Oct 26, 2026, 5:46 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Effect of Energy Drink Ingredients on Cardiovascular Function in Men and Women 18-39 Years Old

NCT04149717
View directory record Official record
Conditions
Cardiac Arrhythmia, Blood Pressure
Interventions
Energy Drink Ingredients and Exercise
Dietary Supplement
Lead sponsor
Duquesne University
Other
Eligibility
18 Years to 39 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Oct 26, 2026, 5:46 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

CARNIVAL Study: Gut Flora Dependent Metabolism of Dietary CARNItine and Phosphatidylcholine and cardioVAscuLar Disease

NCT01731236
View directory record Official record
Conditions
Dietary Modification
Interventions
Carnitine, Choline, Antibiotics, Choline and Aspirin, Carnitine and Aspirin
Dietary Supplement · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Single Photon Emission Computed Tomography (SPECT) Imaging Study of Professional American Football Players

NCT01515839
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Multivitamin Supplement intervention
Dietary Supplement
Lead sponsor
Amen Clinics, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Newport Beach, California
Source: ClinicalTrials.gov public record
Updated Jan 24, 2012 · Synced Oct 26, 2026, 5:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Carnitine and Liver Mitochondria Fatty Acid Processing

NCT03193125
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Insulin Resistance, Obesity
Interventions
L-Carnitine, Placebo
Dietary Supplement
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
20 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 29, 2022 · Synced Oct 26, 2026, 5:46 PM EDT