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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Levocarnitine Clear all
Completed No phase listed Observational Accepts healthy volunteers

Influence of OCTN2 Variants on Carnitine Status and Plasma Triglycerides

NCT00187733
View directory record Official record
Conditions
Carnitine Transporter Deficiency
Interventions
Fasting blood and urine collection
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 40 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2012 · Synced Sep 22, 2026, 4:50 PM EDT
Completed Not applicable Interventional

Safety and Effectiveness of Giving Adefovir (Preveon) Plus Other Anti-HIV Drugs to HIV-Infected Patients Who Have Not Responded to Other Anti-HIV Drug Combinations

NCT00002398
View directory record Official record
Conditions
HIV Infections
Interventions
Levocarnitine, Adefovir dipivoxil
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
13 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Foster City, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 22, 2026, 4:50 PM 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 22, 2026, 4:50 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 23, 2005 · Synced Sep 22, 2026, 4:50 PM EDT
Not listed Not applicable Interventional

Study to Evaluate the Effect of RGMA001 on Patients With Non Alcoholic Fatty Liver Disease (NAFLD)

NCT01511523
View directory record Official record
Conditions
Non Alcoholic Fatty Liver Disease
Interventions
RGMA001, Sugar Pill
Dietary Supplement
Lead sponsor
Biovil Research Group, LLC
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Fayetteville, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 15, 2012 · Synced Sep 22, 2026, 4:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparing Blood Sugar Levels and Endothelial Function of PEAK ATP® With GlycoCarn®, PEAK ATP® and GlycoCarn® Supplements

NCT01855373
View directory record Official record
Conditions
Blood Sugar, Endothelial Function
Interventions
PEAK ATP® with GlycoCarn®, PEAK ATP®, GlycoCarn®, Placebo
Dietary Supplement · Other
Lead sponsor
Supplement Formulators, Inc.
Industry
Eligibility
25 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Fort Lauderdale, Florida
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Sep 22, 2026, 4:50 PM 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 22, 2026, 4:50 PM EDT
Not listed Phase 1Phase 2 Interventional

A Study of IBRF Disorders of Consciousness Advanced Care/MultiModal Care Protocol in Severe Disorders of Consciousness

NCT02696512
View directory record Official record
Conditions
Brain Injury
Interventions
Polypharmacy using FDA-approved products, Median Nerve Stimulation (MNS), Nutraceutical Supplementation, Standard of Care
Drug · Device · Dietary Supplement + 1 more
Lead sponsor
International Brain Research Foundation
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Edison, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 1, 2016 · Synced Sep 22, 2026, 4:50 PM EDT
Recruiting Phase 2 Interventional

Matching Perfusion and Metabolic Activity in HFpEF

NCT04913805
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction
Interventions
Potassium Nitrate, Potassium Nitrate + Propionyl-L-Carnitine + Nicotinamide Riboside, Potassium Chloride
Drug · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 22, 2026, 4:50 PM EDT
Completed Phase 2 Interventional

Treatment Success and Failure in HIV-Infected Subjects Receiving Indinavir in Combination With Nucleoside Analogs: A Rollover Study for ACTG 320

NCT00000885
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Abacavir sulfate, Nelfinavir mesylate, Efavirenz, Levocarnitine, Adefovir dipivoxil, Lamivudine, Stavudine, Zidovudine, Didanosine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
16 Years and older
Enrollment
440 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2003
U.S. locations
52
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 32 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2021 · Synced Sep 22, 2026, 4:50 PM 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 22, 2026, 4:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study Of Nutraceutical Drinks For Cholesterol (Evaluating Effectiveness and Tolerability)

NCT01152073
View directory record Official record
Conditions
Hyperlipidemia
Interventions
Placebo, Second Formulation, Third Formulation
Dietary Supplement
Lead sponsor
Healthy Drink Discoveries, Inc.
Other
Eligibility
20 Years to 80 Years
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Boca Raton, Florida
Source: ClinicalTrials.gov public record
Updated Mar 15, 2012 · Synced Sep 22, 2026, 4:50 PM EDT
Completed Phase 2 Interventional

A Clinical Trial of a Vitamin/Nutriceutical Formulation for Alzheimer's Disease

NCT01320527
View directory record Official record
Conditions
Alzheimer's Disease, Mild Cognitive Impairment
Interventions
Nutriceutical formulation, Placebo
Dietary Supplement · Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
40 Years and older
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
8
States / cities
Naples, Florida • Baltimore, Maryland • Ayer, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2016 · Synced Sep 22, 2026, 4:50 PM EDT
Completed Phase 2 Interventional

Levocarnitine for Dry Eye in Sjogren's Syndrome

NCT03953703
View directory record Official record
Conditions
Sjogren's Syndrome, Keratoconjunctivitis Sicca
Interventions
Levocarnitine, Placebo
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Sep 22, 2026, 4:50 PM 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 22, 2026, 4:50 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 Jul 31, 2023 · Synced Sep 22, 2026, 4:50 PM EDT
Completed Not applicable Interventional

Levocarnitine in Treating Patients With Vismodegib-Associated Muscle Spasms

NCT01893892
View directory record Official record
Conditions
Musculoskeletal Complications
Interventions
levocarnitine, placebo, questionnaire administration
Dietary Supplement · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2017 · Synced Sep 22, 2026, 4:50 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 4, 2023 · Synced Sep 22, 2026, 4:50 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 22, 2026 · Synced Sep 22, 2026, 4:50 PM EDT
Active, not recruiting No phase listed Observational

Long-Chain Fatty Acid Oxidation Disorders In-Clinic Disease Monitoring Program

NCT04632953
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
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2035
U.S. locations
13
States / cities
Phoenix, Arizona • San Francisco, California • Aurora, Colorado + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 22, 2026, 4:50 PM EDT
Terminated Phase 2 Interventional

Safety and Efficacy of ALC in Breast Cancer in Subjects With Fatigue

NCT00555841
View directory record Official record
Conditions
Breast Cancer
Interventions
ALC and Placebo
Drug
Lead sponsor
Sigma-Tau Research, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 27, 2012 · Synced Sep 22, 2026, 4:50 PM 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 22, 2026, 4:50 PM 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 22, 2026, 4:50 PM EDT
Completed Phase 2 Interventional

The Effectiveness of Nelfinavir and Efavirenz, Used Alone or Together, Combined With Other Anti-HIV Drugs in Patients Who Have Taken Anti-HIV Drugs

NCT00001087
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Nelfinavir mesylate, Efavirenz, Levocarnitine, Adefovir dipivoxil, Saquinavir, Lamivudine, Stavudine, Zidovudine, Zalcitabine, Didanosine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2000
U.S. locations
5
States / cities
Chicago, Illinois • Baltimore, Maryland • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Sep 22, 2026, 4:50 PM EDT