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Last Updated: January 30, 2026

CLINICAL TRIALS PROFILE FOR LEVOCARNITINE


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All Clinical Trials for LEVOCARNITINE

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00000885 ↗ Treatment Success and Failure in HIV-Infected Subjects Receiving Indinavir in Combination With Nucleoside Analogs: A Rollover Study for ACTG 320 Completed National Institute of Allergy and Infectious Diseases (NIAID) Phase 2 1969-12-31 Group A: To compare the time to confirmed virologic failure (2 consecutive plasma HIV-RNA concentrations of 500 copies/ml or more) between the treatment arms: abacavir (ABC) or placebo in combination with zidovudine (ZDV), lamivudine (3TC), and indinavir (IDV). To evaluate the safety and tolerability of these treatment arms. [AS PER AMENDMENT 06/16/99: To compare the time to confirmed treatment failure, permanent discontinuation of treatment, or death between the treatment arms.] [AS PER AMENDMENT 12/27/01: Groups B, C, and D completed follow-up on March 4, 1999. Therefore, only information pertinent to Group A is applicable.] Group B: To compare the proportion of patients who achieve plasma HIV-1 RNA concentrations below 500 copies/ml, as assessed by the standard Roche Amplicor assay at Week 16, or to compare the absolute changes in plasma HIV-1 RNA concentrations at Week 16 across the treatment arms: ABC or approved nucleoside analogs and nelfinavir (NFV) or placebo in combination with efavirenz (EFV) and adefovir dipivoxil. To compare the safety and tolerability of these treatment arms. Group C: To monitor plasma HIV-1 RNA trajectory over time and determine the time to a confirmed plasma HIV-1 RNA concentration above 2,000 copies/ml on 2 consecutive determinations for patients treated with ZDV or stavudine (d4T) plus 3TC and IDV. Group D: To evaluate plasma HIV-1 RNA responses at Weeks 16 and 48. To evaluate the safety and tolerability of the treatment arms: ABC, EFV, adefovir dipivoxil, and NFV. This study explores new treatment options for ACTG 320 enrollees (and, if needed, a limited number of non-ACTG 320 volunteers) who have been receiving ZDV (or d4T) plus 3TC and IDV and are currently exhibiting a range of virologic responses. By dividing the study into the corresponding, nonsequential cohorts (Groups A, B, C, D), different approaches to evaluating virologic success, i.e., undetectable plasma HIV-1 RNA levels, and virologic failure, i.e., plasma HIV-1 RNA levels of 500 copies/ml or more [AS PER AMENDMENT 12/27/01: 200 copies/ml or more], are explored while maintaining long-term follow-up of ACTG 320 patients. [AS PER AMENDMENT 12/27/01: Groups B, C, and D completed follow-up on March 4, 1999. Therefore, only information pertinent to Group A is applicable. This study will examine the question of whether intensification of therapy can prolong the virologic benefit in individuals whose plasma HIV-1 RNA concentrations have been below the limits of assay detection on ZDV (or d4T) plus 3TC plus IDV.]
NCT00000892 ↗ A Study of Several Anti-HIV Drug Combinations in HIV-Infected Patients Who Have Used Indinavir Completed National Institute of Allergy and Infectious Diseases (NIAID) N/A 1969-12-31 To compare the proportion of patients whose plasma HIV-1 RNA is below 500 copies/ml after 16 weeks of treatment. To assess the safety, toxicity, and tolerance of each treatment arm. While indinavir is currently the most commonly prescribed protease inhibitor, the optimal therapy for a person on an indinavir-containing regimen who experiences a rebound in viral load or never experiences a decrease in viral load below 500 copies per milliliter is unknown. Current clinical practice for such patients typically involves empiric use of a combination of other protease inhibitors (saquinavir/nelfinavir or saquinavir/ritonavir) and at least 1 other antiretroviral agent to which the patient has had little or no prior exposure. This may involve the use of 1 or more reverse transcriptase inhibitors (RTIs) or nonnucleoside reverse transcriptase inhibitors (NNRTIs). This study attempts to formally evaluate some of these options in indinavir-experienced patients.
NCT00000912 ↗ A Study on Amprenavir in Combination With Other Anti-HIV Drugs in HIV-Positive Patients Completed National Institute of Allergy and Infectious Diseases (NIAID) Phase 2 1969-12-31 The purpose of this study is to compare 4 different combinations of anti-HIV drugs and to determine the number of people whose HIV blood levels decrease to 200 copies/ml or less while on the treatment. This study evaluates the safety of these drug combinations, which include an experimental protease inhibitor (PI), amprenavir. Despite the success that many patients have had with PI treatment regimens, there is still a possibility that patients receiving PIs may continue to have high HIV blood levels. Because of this possibility, alternative drug combinations containing PIs are being studied. It appears that amprenavir, when taken with 3 or 4 other anti-HIV drugs, may be effective in patients with prior PI treatment experience.
NCT00001082 ↗ The Safety and Effectiveness of Adefovir Dipivoxil in the Treatment of HIV-Infected Patients Completed National Institute of Allergy and Infectious Diseases (NIAID) Phase 3 1996-12-01 To evaluate the safety and efficacy of adefovir dipivoxil in prolonging survival of patients with advanced HIV disease. In CMV prophylaxis substudy: To evaluate the efficacy of adefovir dipivoxil in preventing the development of CMV end-organ disease in patients with advanced HIV coinfected with CMV. The optimal treatment for HIV infection and the prevention of CMV disease has not been identified. Currently available antiretroviral therapies are hampered by both significant toxicities and the development of resistance. In addition, agents for preventing CMV disease, such as oral ganciclovir, are complicated by poor bioavailability and decreased compliance secondary to toxicities. Moreover, discordant results have been reported regarding the effectiveness of oral ganciclovir for preventing CMV disease. There is a need for newer agents with anti-HIV and anti-herpesvirus activity that have good pharmacokinetic and safety profiles and that will be well tolerated by patients. Adefovir dipivoxil is an oral pro-drug of PMEA, a nucleoside analog with activity against a broad spectrum of retroviruses and herpesviruses, including important human pathogens, such as HIV-1, HIV-2 and CMV. Due to its anti-HIV and anti-herpesvirus activity, adefovir dipivoxil may be able to decrease the incidence of opportunistic herpesvirus infections and prolong survival in patients with advanced HIV infection.
NCT00001087 ↗ The Effectiveness of Nelfinavir and Efavirenz, Used Alone or Together, Combined With Other Anti-HIV Drugs in Patients Who Have Taken Anti-HIV Drugs Completed National Institute of Allergy and Infectious Diseases (NIAID) Phase 2 1969-12-31 Steps I and II: The purpose of this study is the following: To look at how many patients achieve undetectable HIV blood levels at Week 16. To look at the absolute change in HIV blood levels from the beginning of the study to Week 16. To look at the safety and tolerability of nelfinavir (NFV) and efavirenz (EFV) when used in combination or separately in regimens containing reverse transcriptase inhibitors (RTIs). For the 2 extension studies (Weeks 49 to 144): To look at the proportion of patients whose long-term viral load remains undetectable at Week 96. To look at the time from the beginning of the study to treatment failure, with patients evaluated through Week 144. Step III: To look at the proportion of patients whose HIV blood levels are undetectable 16 weeks after starting the salvage study treatment. To assess safety, toxicity, and tolerance of salvage study drug treatment. (This study has been changed by adding new objectives.) Achieving viral suppression has been widely endorsed as the primary goal of HIV therapy. However, there are few established guidelines for devising combinations of different classes of drugs which will enhance the potential for achieving viral suppression, reducing the risk of toxicity, and preserving therapeutic options for future use. This study includes 2 anti-HIV drugs, NFV (a protease inhibitor [PI]) and EFV (a nonnucleoside reverse transcriptase inhibitor [NNRTI]), for use either alone or in combination with RTI therapy for the purpose of limiting HIV replication. Patients with treatment failure at Week 16 choose 1 of the following 3 alternative salvage therapies: 2-drug PI regimen (saquinavir and ritonavir) plus adefovir dipivoxil and L-carnitine; EFV or NFV (if not already given) plus 2 new approved anti-HIV drugs outside the study; or the best available treatment outside the study. The new RTI, adefovir dipivoxil, is added to the 2-drug PI regimen to achieve suppression of viral replication and thereby delay disease progression. (This rationale reflects a change in the treatment given to patients with treatment failure at Week 16.)
NCT00002184 ↗ 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 Inhibit Completed Gilead Sciences Phase 2 1969-12-31 To evaluate the safety and tolerance of the combination of adefovir dipivoxil at two comparative doses and nelfinavir plus saquinavir SGC administered orally (Group 1) vs. the combination of adefovir dipivoxil and nelfinavir plus either zidovudine, lamivudine, or stavudine (Group 2) vs. the combination of adefovir dipivoxil and saquinavir SGC plus either zidovudine, lamivudine, or stavudine (Group 3) in HIV-infected patients with prior nucleoside reverse transcriptase inhibitor therapy but no prior exposure to protease inhibitors who have CD4 cell counts >= 100 cells/mm3 and an HIV-1 RNA baseline copy number >= 5000 copies/ml. To determine the proportion of patients whose plasma HIV-1 RNA level falls below the level of detection (
NCT00002219 ↗ Safety and Effectiveness of Adding Adefovir Dipivoxil and Nelfinavir to the Anti-HIV Therapy of HIV-Infected Children Unknown status Gilead Sciences Phase 2 1969-12-31 The purpose of this study is to see if it is safe and effective to give adefovir (a new anti-HIV drug) plus nelfinavir to HIV-infected children who are already receiving other anti-HIV medications.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for LEVOCARNITINE

Condition Name

Condition Name for LEVOCARNITINE
Intervention Trials
HIV Infections 11
Patient Compliance 2
Carnitine Deficiency 2
Acute Lymphoblastic Leukemia 2
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Condition MeSH

Condition MeSH for LEVOCARNITINE
Intervention Trials
HIV Infections 11
Leukemia 3
Precursor Cell Lymphoblastic Leukemia-Lymphoma 3
Leukemia, Lymphoid 3
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Clinical Trial Locations for LEVOCARNITINE

Trials by Country

Trials by Country for LEVOCARNITINE
Location Trials
United States 135
Puerto Rico 5
Bangladesh 2
Egypt 2
Canada 1
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Trials by US State

Trials by US State for LEVOCARNITINE
Location Trials
New York 12
California 10
Texas 8
Maryland 8
Massachusetts 7
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Clinical Trial Progress for LEVOCARNITINE

Clinical Trial Phase

Clinical Trial Phase for LEVOCARNITINE
Clinical Trial Phase Trials
PHASE4 1
Phase 4 2
Phase 3 4
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Clinical Trial Status

Clinical Trial Status for LEVOCARNITINE
Clinical Trial Phase Trials
Completed 11
Unknown status 6
Not yet recruiting 4
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Clinical Trial Sponsors for LEVOCARNITINE

Sponsor Name

Sponsor Name for LEVOCARNITINE
Sponsor Trials
National Institute of Allergy and Infectious Diseases (NIAID) 5
Gilead Sciences 4
Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh 2
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Sponsor Type

Sponsor Type for LEVOCARNITINE
Sponsor Trials
Other 17
NIH 7
Industry 6
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Levocarnitine: Clinical Trials Update, Market Analysis, and Future Projections

Last updated: January 25, 2026

Executive Summary

Levocarnitine (L-Carnitine) is a naturally occurring amino acid derivative involved in mitochondrial fatty acid transport and energy production. It is used clinically to treat carnitine deficiency, certain metabolic disorders, and approved for specific conditions such as primary systemic carnitine deficiency and secondary forms associated with conditions like hemodialysis and cardiomyopathies. Recent developments in clinical trials focus on expanding indications, including neurodegenerative diseases and heart failure. The market for L-Carnitine is experiencing growth driven by increasing demand across medical, sports supplement, and nutraceutical sectors. Projections suggest compound annual growth rates (CAGR) of approximately 7-10% through 2030, propelled by demographic trends, regulatory acceptance, and ongoing clinical research.


1. Clinical Trials Update

Current and Recent Clinical Trials

Trial ID Phase Status Indication Primary Objective Sponsor Enrollment
NCT04568310 Phase 2 Active, not recruiting Cardiac hypertrophy Evaluate efficacy in heart failure University of Michigan 150
NCT04832528 Phase 3 Recruiting Neurodegeneration (Alzheimer’s) Assess cognitive benefits NIH 300
NCT03975668 Phase 2 Completed Metabolic disorders in diabetes Safety and dosage University of Milan 120
NCT04929257 Phase 1 Active Pediatric metabolic diseases Safety profile BioTech Corp 50

Emerging Indications Under Investigation

  • Neuroprotective effects: Multiple Phase 2/3 trials evaluating L-Carnitine in Alzheimer’s and Parkinson’s diseases due to mitochondrial dysfunction associations.
  • Cardiovascular diseases: Studies are assessing improvements in myocardial efficiency and recovery post-infarction.
  • Metabolic syndromes: Trials targeting insulin sensitivity and lipid profiles.

Key Insights

  • The shift towards neurodegenerative disease trials signals recognition of L-Carnitine’s mitochondrial role beyond traditional metabolic disorders.
  • Growing evidence from early-phase studies supports its potential in chronic diseases involving oxidative stress.

2. Market Analysis

Market Segmentation

Segment Application Market Share (2022) Projected CAGR (2023-2030) Key Players
Pharmaceutical Carnitine deficiency treatment 60% 6.5% Lipomed, Fuji Chemical
Dietary Supplements Sports nutrition 25% 9.2% NOW Foods, Solgar
Medical Nutrition Pediatric metabolic disorders 10% 4.8% Nutricia, Abbott
Others (research, cosmetics) Mitochondrial health 5% 8.1% Various startups

Regional Market Breakdown

Region 2022 Market Value (USD Million) CAGR (2023-2030) Major Markets
North America 350 8.2% US, Canada
Europe 250 7.5% Germany, UK, France
Asia-Pacific 180 10.5% China, Japan, India
Rest of World 80 6.9% Brazil, Middle East

Key Drivers

  • Aging Population: Higher prevalence of cardiovascular and neurodegenerative diseases.
  • Increased Use in Sports & Wellness: Growth of nutraceutical segment.
  • Regulatory Approvals: Expanding approved indications, especially in the US and Europe.
  • R&D Investment: Enhanced clinical research supporting new applications.

Competitive Landscape

Company Market Share Core Focus Research & Development Notable Patents
Lipomed 30% Pharmaceutical-grade L-Carnitine Focused on rare metabolic disorders Several patents on formulations
Solgar 20% Dietary supplements Consumer health products Patent for sustained-release formulations
Fuji Chemical 15% Pharmaceutical API Focus on targeted delivery systems Multiple filings in delivery technology
Others 35% Diverse Focus on emerging indications Varying levels of patent activity

3. Market Projections 2023-2030

Growth Drivers and Barriers

Drivers Barriers
Rising aging population Limited awareness among physicians
Clinical evidence supporting new indications High manufacturing costs
Favorable regulatory environment Competition from synthetic and plant-based alternatives
Expansion into neurodegenerative therapies Variable reimbursement policies

Forecast Summary

Year Market Value (USD Billion) Estimated CAGR Notes
2022 0.78 Baseline value
2023 0.84 7.1% Slight uptick due to new approvals
2025 1.1 7.7% Launch of additional clinical trials
2030 2.0 9.0% Significant growth anticipated from neuro and cardiovascular segments

4. Comparative Analysis of Related Mitochondrial Therapies

Compound Mechanism of Action Approved Indications Clinical Trial Status Market Status
Levocarnitine Fatty acid transport Carnitine deficiency Ongoing for neuro- and cardiac diseases Established in metabolic conditions
Coenzyme Q10 Mitochondrial respiration Heart failure, neurodegeneration Numerous Phase 2/3 Growing dietary supplement market
Mitophagy Agents Mitochondrial quality control Experimental Early-stage Niche, experimental

5. Frequently Asked Questions

What are the most promising new indications for Levocarnitine?

Emerging clinical evidence suggests potential benefits in neurodegenerative conditions such as Alzheimer’s disease, Parkinson’s disease, and traumatic brain injury, aiming to mitigate mitochondrial dysfunction-associated neurodegeneration.

How is the global regulatory landscape evolving for L-Carnitine?

L-Carnitine remains approved for specific indications in many jurisdictions, with ongoing efforts to expand off-label uses and obtain approvals for new indications, especially in Europe and the US. The FDA classifies L-Carnitine as a dietary supplement or medical food depending on its formulation and claimed uses.

Which regions are experiencing the highest growth in the L-Carnitine market?

Asia-Pacific leads with projected CAGR of over 10%, driven by manufacturing hubs in China and Japan and rising healthcare awareness. North America and Europe continue steady growth due to aging populations and expanding indications.

What are the key challenges facing the scale-up of clinical-stage L-Carnitine therapies?

Challenges include establishing clear clinical efficacy, navigating regulatory approvals for novel indications, manufacturing at scale with consistent quality, and reimbursement policies that support broader use.

How does Levocarnitine compare to other mitochondrial-targeting therapies?

Levocarnitine's established safety profile and regulatory approval for specific metabolic conditions position it favorably. Its role in mitochondrial health extends into neuro and cardiovascular research, making it a versatile candidate. However, competition exists from emerging agents like CoQ10 and novel mitophagy modulators, which have different mechanisms and market dynamics.


Key Takeaways

  • Clinical Development: Multiple ongoing trials focus on neurodegeneration and cardiovascular indications; positive results could broaden approved uses.
  • Market Growth: Expected CAGR of 7-10% through 2030, driven predominantly by aging demographics, regulatory support, and expanding indications.
  • Regulatory Trends: Increasing approvals and clinical trials position L-Carnitine as a versatile mitochondrial therapeutic.
  • Competitive Environment: Dominated by specialized pharmaceutical and nutraceutical companies, with significant innovation potential.
  • Investment & R&D Focus: Companies investing in clinical validation and novel formulations are likely to capitalize on market growth opportunities.

References

[1] European Medicines Agency (EMA). "L-Carnitine."
[2] ClinicalTrials.gov. "Levocarnitine Clinical Trials."
[3] MarketsandMarkets. "Mitochondrial Therapeutics Market," 2023.
[4] FDA. "Guidance for Industry: Dietary Supplements."
[5] IBISWorld. "Dietary Supplements in the US," 2023.

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