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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: L-Carnitine Clear all
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 Jul 31, 2023 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Phase 4 Interventional Results available

Evaluation of Cilostazol in Combination With L-Carnitine

NCT00822172
View directory record Official record
Conditions
Peripheral Vascular Disease, Intermittent Claudication, Peripheral Arterial Disease
Interventions
Levocarnitine tartrate, cilostazol
Dietary Supplement · Drug
Lead sponsor
Colorado Prevention Center
Other
Eligibility
40 Years and older
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
24
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Palo Alto, California + 18 more
Source: ClinicalTrials.gov public record
Updated Nov 28, 2019 · Synced Sep 17, 2026, 5:18 AM EDT
Terminated Phase 4 Interventional Results available

L-Carnitine L-Tartrate in Preventing Peripheral Neuropathy Caused By Chemotherapy in Women With Metastatic Breast Cancer

NCT00754767
View directory record Official record
Conditions
Breast Cancer, Chemotherapeutic Agent Toxicity, Neurotoxicity
Interventions
L-carnitine L-tartrate, placebo
Drug · Other
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
2
States / cities
Minneapolis, Minnesota • Saint Louis Park, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced Sep 17, 2026, 5:18 AM 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 23, 2005 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Phase 3 Interventional Results available

Levocarnitine in Treating Fatigue in Cancer Patients

NCT00091169
View directory record Official record
Conditions
Fatigue, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
levocarnitine, placebo
Dietary Supplement · Other
Lead sponsor
ECOG-ACRIN Cancer Research Group
Network
Eligibility
18 Years and older
Enrollment
376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
116
States / cities
Palo Alto, California • Stanford, California • Danbury, Connecticut + 85 more
Source: ClinicalTrials.gov public record
Updated Jul 4, 2023 · Synced Sep 17, 2026, 5:18 AM 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 5, 2017 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Not applicable Interventional

Nutritional Therapy for Autonomic Dysfunction in Elderly Heart Failure Patients

NCT06256276
View directory record Official record
Conditions
Heart Failure
Interventions
Whey protein powder and L-carnitine, Maltodextrin placebo powder and Psyllium Husk capsules
Dietary Supplement
Lead sponsor
University of Arkansas
Other
Eligibility
60 Years to 90 Years · Female only
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Sep 17, 2026, 5:18 AM 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 21, 2016 · Synced Sep 17, 2026, 5:18 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Pilot Study: Impact of Biomarker-Guided Dietary Supplementation on Quality-of-Life Measures in Subjects With Chronic Pain

NCT06247813
View directory record Official record
Conditions
Chronic Pain
Interventions
Inflammation Support Formula, Nerve Health Formula, Redox Support Formula
Dietary Supplement
Lead sponsor
Ethos Research & Development
Industry
Eligibility
18 Years to 75 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Newport, Kentucky
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 17, 2026, 5:18 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Survey on Cardiovascular Events in Patients With Metabolic Disease on Chronic Carnitine Supplementation

NCT02311270
View directory record Official record
Conditions
Metabolic Disorders
Interventions
Not listed
Lead sponsor
University of South Florida
Other
Eligibility
Not listed
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 22, 2016 · Synced Sep 17, 2026, 5:18 AM 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 30, 2017 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Trial to Evaluate the Effects of a Supplement on Symptoms Associated With Hormone Imbalance

NCT07765381
View directory record Official record
Conditions
Hormone Imbalance, Thyroid Hormone Imbalance, Low Energy, Metabolic Symptoms, Unhealthy Eating Habits
Interventions
Hello Burn, Balance Supplement
Dietary Supplement
Lead sponsor
Love Wellness
Industry
Eligibility
25 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 17, 2026, 5:18 AM 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 4, 2023 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Chronic Effects of Carnitine on Recovery

NCT04420377
View directory record Official record
Conditions
Muscle Soreness, Muscle Damage, Resistance Training, Oxidative Stress, Muscle Strength
Interventions
Carnipure, Resistance Training
Dietary Supplement · Other
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
18 Years to 65 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 2, 2021 · Synced Sep 17, 2026, 5:18 AM 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 17, 2022 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Phase 2 Interventional

Developmental Study on Fatigue in Cancer

NCT00034450
View directory record Official record
Conditions
Neoplasms
Interventions
L-carnitine
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 17, 2006 · Synced Sep 17, 2026, 5:18 AM EDT
Withdrawn Not applicable Interventional

L-carnitine to Treat Fatigue Associated With Crohn's Disease

NCT01523106
View directory record Official record
Conditions
Crohn's Disease, Fatigue
Interventions
L-carnitine, Placebo
Drug · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 16, 2014 · Synced Sep 17, 2026, 5:18 AM EDT
Completed No phase listed Observational

Carnitine Levels and Carnitine Supplementation in Type I Diabetes

NCT00351234
View directory record Official record
Conditions
Diabetes Mellitus, Type I, Hypoglycemia
Interventions
Carnitine (drug)
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
7 Years to 21 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 27, 2012 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Not applicable Interventional

The Effect of Oral Carnitine Supplementation on MRS-derived Mitochondrial Function

NCT02124590
View directory record Official record
Conditions
Elderly, Pre-diabetic
Interventions
Acute Exercise
Other
Lead sponsor
Duke University
Other
Eligibility
60 Years to 80 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 16, 2015 · Synced Sep 17, 2026, 5:18 AM EDT
Withdrawn Not applicable Interventional

Effects of Mixed Exercise Regime and L-Carnitine Supplementation in HIV Patients on HAART

NCT00572429
View directory record Official record
Conditions
HIV Infections, Hyperlipidemia, Exercise
Interventions
l-carnitine
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 18, 2012 · Synced Sep 17, 2026, 5:18 AM EDT
Withdrawn Phase 2 Interventional

Chronic Fatigue Syndrome: A Presumptive Mitochondrial Disorder

NCT01471652
View directory record Official record
Conditions
Chronic Fatigue Syndrome
Interventions
Nutraceutical supplements, Placebo
Drug
Lead sponsor
Columbia University
Other
Eligibility
25 Years to 55 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2015 · Synced Sep 17, 2026, 5:18 AM 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 28, 2022 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Phase 3 Interventional

Safety and Efficacy of Propionyl-L-Carnitine in the Treatment of Peripheral Arterial Disease (Intermittent Claudication)

NCT00399919
View directory record Official record
Conditions
Peripheral Vascular Diseases, Intermittent Claudication
Interventions
Propionyl-L-Carnitine, PLC
Drug
Lead sponsor
Sigma-Tau Research, Inc.
Industry
Eligibility
40 Years to 80 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
9
States / cities
Jacksonville, Florida • Pensacola, Florida • LaGrange, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 24, 2011 · Synced Sep 17, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of the Efficacy of Carnipure® AAS on Body Composition, Muscle Thickness, and Strength Adaptations in Healthy Men

NCT05681806
View directory record Official record
Conditions
Muscle Hypotrophy
Interventions
Carnipure AAS, Creatine Monohydrate
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
18 Years to 40 Years · Male only
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Sep 17, 2026, 5:18 AM EDT