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Last Updated: December 12, 2025

CLINICAL TRIALS PROFILE FOR LACOSAMIDE


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All Clinical Trials for LACOSAMIDE

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00135109 ↗ Trial to Assess the Efficacy and Safety of SPM 927 (200, 400, and 600mg/Day) in Subjects With Painful Distal Diabetic Neuropathy Completed UCB Pharma Phase 3 2004-10-01 This phase 3 trial is being conducted at approximately 80 sites in the United States (U.S.) to investigate whether lacosamide (SPM 927) at different doses reduces pain in subjects with diabetic neuropathy. Approximately 455 subjects will be randomized to placebo or to one of three doses of lacosamide. To qualify for this trial, subjects with symptoms of painful distal diabetic neuropathy ranging in duration from 6 months to 5 years must have an average pain intensity of greater than or equal to 4 on an 11-point Likert scale (0-10 scale) during the 7 day period prior to the start of treatment. To determine what effect lacosamide has on diabetic neuropathic pain, subjects will use a diary to record their daily pain intensity (morning and evening; and pain interference with sleep (morning) and activity (evening). Use of rescue medication (acetaminophen) and subjects' quality of life will be investigated. In addition, the safety and tolerability of the different doses of lacosamide will be investigated.
NCT00136019 ↗ SPM 927 (400mg/Day and 600mg/Day) as Adjunctive Therapy in Subjects With Partial Seizures With or Without Secondary Generalization Completed UCB Pharma Phase 3 2004-03-01 Male and female patients between 16 and 70 years of age who are diagnosed with epilepsy with partial seizures and are taking up to 3 medications for this medical condition will take part in a research study at approximately 85 different locations in the United States. The purpose of the study is to evaluate the effectiveness, safety and tolerability of consistent dosages of a study drug (lacosamide [SPM 927]) taken orally twice a day for about five months. Each patient who qualifies and chooses to participate in the study will receive placebo (inactive drug) or gradually increasing doses of lacosamide up to the target dose of 400mg/day or 600mg/day. The target dose or placebo will be maintained for 12 weeks. The study clinic visits will include a medical history and physical exam, electrocardiogram (ECG), blood and urine sample collection, and completion of a seizure diary. Patients who complete the study may enroll in an extension trial and receive active study drug.
NCT00220337 ↗ A Trial to Assess the Long-term Safety and Efficacy of Lacosamide in Subjects With Painful Diabetic Neuropathy Completed UCB Pharma Phase 3 2004-12-01 The purpose of this study is to determine if lacosamide (SPM 927) is safe if taken for a longer period of time and whether it continues to work well to treat pain. Subjects will receive lacosamide at a dose that will be individually determined to be the one that provides most pain relief with the least side effects. The maximum dose will be 600mg/day. Subjects may participate in this trial until October 2007. This time may be extended to allow them to participate until lacosamide is commercially available. If a subject meet the requirements for the study at Visit 1 and after a two weeks phase without trial medication, s/he enters a Titration Phase to determine the personal optimal dose of lacosamide. When this dose is reached s/he will enter the Maintenance Phase and will be asked to return for visits every 4 weeks for the first 24 weeks and every 12 weeks thereafter.
NCT00220415 ↗ A Multicenter, Double-blind, Randomized, Placebo-controlled, Parallel Group Trial to Investigate the Efficacy and Safety of SPM 927 (200mg/Day and 400mg/Day) as Adjunctive Therapy in Subjects With Partial Seizures With or Without Secondary Generaliz Completed UCB Pharma Phase 3 2004-05-01 Male and female patients between 16 and 70 years of age who are diagnosed with epilepsy with partial seizures and are taking up to 3 medications for this medical condition will take part in this research study at approximately 80 different locations in Australia and Europe. The purpose of this study is to evaluate the effectiveness, safety and tolerability of consistent dosages of study drug (lacosamide) taken orally twice a day for about 4 months. Each patient who qualifies and chooses to participate in the study will receive placebo (inactive drug) or gradually increasing doses of lacosamide (SPM 927) up to the target dose of 200mg/day or 400mg/day. The target dose or placebo will be maintained for 12 weeks. The study clinic visits will include a medical history and physical exam, ECG, blood and urine sample collection, and completion of a seizure diary. Patients who complete the study may enroll in an extension trial and receive active study drug.
NCT00235443 ↗ A Follow-On Trial to Assess the Long Term Safety and Efficacy of SPM 927 in Painful Distal Diabetic Neuropathy Completed UCB Pharma Phase 2/Phase 3 2004-09-01 Phase 2/3 open-label trial to assess the safety and tolerability of long-term treatment with lacosamide (SPM 927) in subjects with painful diabetic neuropathy. The safety and tolerability of the different doses of lacosamide will be investigated.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for LACOSAMIDE

Condition Name

Condition Name for LACOSAMIDE
Intervention Trials
Epilepsy 38
Partial Epilepsies 6
Migraine Disorders 4
Painful Diabetic Neuropathy 4
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Condition MeSH

Condition MeSH for LACOSAMIDE
Intervention Trials
Epilepsy 45
Seizures 33
Epilepsies, Partial 15
Diabetic Neuropathies 9
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Clinical Trial Locations for LACOSAMIDE

Trials by Country

Trials by Country for LACOSAMIDE
Location Trials
United States 475
Germany 29
Australia 27
Poland 17
Canada 17
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Trials by US State

Trials by US State for LACOSAMIDE
Location Trials
Texas 27
North Carolina 23
Ohio 23
Florida 21
California 18
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Clinical Trial Progress for LACOSAMIDE

Clinical Trial Phase

Clinical Trial Phase for LACOSAMIDE
Clinical Trial Phase Trials
PHASE4 2
PHASE3 3
Phase 4 12
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Clinical Trial Status

Clinical Trial Status for LACOSAMIDE
Clinical Trial Phase Trials
Completed 71
RECRUITING 13
Terminated 10
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Clinical Trial Sponsors for LACOSAMIDE

Sponsor Name

Sponsor Name for LACOSAMIDE
Sponsor Trials
UCB Pharma 40
UCB BIOSCIENCES, Inc. 11
Kafrelsheikh University 6
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Sponsor Type

Sponsor Type for LACOSAMIDE
Sponsor Trials
Industry 82
Other 58
NIH 3
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Lacosamide: Clinical Trials Update, Market Analysis, and Future Projections

Last updated: October 30, 2025


Introduction

Lacosamide, marketed primarily as Vimpat, is an antiepileptic drug approved by the U.S. Food and Drug Administration (FDA) in 2008. It is indicated for partial-onset seizures in epilepsy and is valued for its unique mechanism of action, which involves modulation of voltage-gated sodium channels. As the global epilepsy treatment landscape evolves, continuous assessment of lacosamide’s clinical and commercial trajectories provides essential insights for stakeholders. This analysis offers an in-depth update on ongoing clinical trials, a comprehensive market overview, and future projections based on current trends.


Clinical Trials Update

Ongoing Clinical Evaluations

Lacosamide’s clinical development extends beyond its initial FDA approval, with multiple ongoing and completed trials focusing on expanded indications, safety profiles, and combination therapies.

  • Additional Indications and Efficacy Studies
    Recent trials explore lacosamide’s utility in treating generalized epilepsies and other neurodegenerative disorders. For example, a phase IV study (NCT04664485) initiated in 2021 assesses its efficacy and tolerability in adult patients with focal epilepsy refractory to other treatments. Preliminary data suggest favorable tolerability with a manageable side effect profile.

  • Pharmacokinetics and Safety Profiles
    Recent pharmacokinetic studies have examined interactions with other antiepileptic drugs (AEDs). A notable trial (NCT03893095) confirmed that lacosamide’s combination with valproic acid does not significantly alter drug levels, supporting its use in polytherapy.

  • Novel Delivery Systems
    Innovations such as IV formulations and sustained-release tablets are under clinical evaluation. A phase II trial (NCT04635768) investigates a sustained-release oral formulation, aiming to improve adherence and reduce systemic side effects.

  • Neuroprotective and Cognitive Effects
    Emerging research investigates lacosamide’s potential neuroprotective effects beyond seizure control. A pilot study (NCT04567245) explores its impact on cognitive function in post-traumatic epilepsy, with initial results indicating possible benefits in neuroplasticity.

Completed and Regulatory Submissions

Recent completed trials have bolstered lacosamide’s safety profile, paving the way for expanded approvals or off-label use. Notably, in 2022, the European Medicines Agency (EMA) approved lacosamide for adjunctive therapy in patients aged 4 years and older with focal seizures, based on robust phase III data.


Market Analysis

Market Overview and Size

Lacosamide’s global market has experienced consistent growth since its launch, driven by increasing epilepsy prevalence and a shift toward newer AEDs with improved tolerability.

  • Market Valuation
    In 2022, the global epilepsy drug market was valued at approximately USD 4.8 billion, with lacosamide representing an estimated USD 900 million share, accounting for roughly 18-20% (Source: ResearchAndMarkets).

  • Geographical Dynamics
    North America dominates with over 50% market share due to high diagnosis rates and established healthcare infrastructure. Europe follows, benefitting from expanding indications and favorable reimbursement policies. Emerging markets, including Asia-Pacific, exhibit robust growth potential owing to increasing awareness and epilepsy management programs.

Competitive Landscape

Lacosamide faces competition from established AEDs such as levetiracetam, lamotrigine, and newer agents like cannabidiol (CBD). Its relatively favorable side effect profile and rapid onset have favored its adoption, though competition remains intense.

Key pharmaceutical players include:

  • UCB Pharma: Original developer and marketer of Vimpat globally.
  • Teva Pharmaceuticals: Offers generic versions, impacting pricing and market penetration.
  • Other players: Supernus, Sun Pharma, expanding their epilepsy drug portfolios.

Pricing and Reimbursement Trends

Pricing remains a critical factor. Branded lacosamide commands a premium (~USD 5–7 per tablet), but generic versions have significantly reduced costs, increasing accessibility in cost-sensitive regions. Reimbursement policies in North America and Europe generally favor its usage, though approval complexities exist in some jurisdictions.


Future Market Projections

Growth Drivers

  • Expanded Indications and Labeling
    Successful ongoing trials targeting broader epilepsy subtypes and neurodegenerative conditions are likely to expand lacosamide’s application, fueling market growth.

  • Innovative Formulations
    Sustained-release and parenteral formulations enhance patient adherence and convenience, opening new market segments, especially in outpatient and critical care settings.

  • Geographical Expansion
    Emerging markets are poised for rapid growth, supported by regulatory approvals, local manufacturing, and increased epilepsy awareness campaigns.

Challenges and Risks

  • Competitive Pressure
    The entry of generic formulations diminishes revenue potential for patented lacosamide. Additionally, the emergence of alternative newer AEDs may reduce market share.

  • Regulatory Hurdles
    Variable regional approval timelines and reimbursement policies could delay market expansion.

  • Safety Concerns
    Although lacosamide exhibits a favorable safety profile, rare adverse effects such as arrhythmias necessitate ongoing post-marketing surveillance.

Market Outlook

By 2030, the global lacosamide market is projected to reach USD 1.5–2 billion, driven by increased adoption, new indications, and geographical expansion. Compound annual growth rates (CAGR) are estimated at 6–8%, contingent on competitive dynamics and successful clinical development of adjunct indications.


Conclusion

Lacosamide remains a pivotal asset in epilepsy management, with ongoing clinical trials promising to broaden its therapeutic scope. Market prospects are optimistic, underpinned by expanding indications, innovative formulation developments, and emerging markets. Stakeholders should monitor clinical advancements and regulatory trends closely, capitalize on formulary opportunities, and prepare for intensified competition, especially from generics.


Key Takeaways

  • Active clinical trials are exploring lacosamide’s expanded indications, novel delivery systems, and neuroprotective effects, potentially broadening its therapeutic footprint.
  • The global lacosamide market is growing steadily, with North America dominating but emerging markets offering substantial upside.
  • Generic formulations are enhancing accessibility, yet patent protections and brand loyalty remain advantages for original developers.
  • Innovations in formulations and expansion into neurodegenerative disorders are primary growth engines for the foreseeable future.
  • Market projections anticipate a CAGR of 6–8%, with revenues reaching USD 1.5–2 billion by 2030.

FAQs

1. What are the current approved indications for lacosamide?
Lacosamide is approved for adjunctive treatment of partial-onset seizures in adults and adolescents aged 4 years and older in several regions, including the U.S. and Europe.

2. How does lacosamide's mechanism of action differ from other AEDs?
It selectively enhances slow inactivation of voltage-gated sodium channels, stabilizing hyperexcitable neuronal membranes without affecting fast inactivation processes common to many other AEDs.

3. Are there ongoing studies investigating lacosamide’s use in other neurological conditions?
Yes, studies are exploring its potential neuroprotective effects in post-traumatic epilepsy and cognitive impairment, although these are still at early phases.

4. How does the entry of generics affect lacosamide’s market?
Generic versions have lowered prices and increased accessibility, potentially reducing revenue for the original brand but expanding overall market reach.

5. What are the safety considerations associated with lacosamide?
While generally well-tolerated, rare adverse effects include dizziness, nausea, and cardiac arrhythmias, necessitating ongoing safety monitoring.


References

  1. FDA. (2008). FDA approval of Vimpat (lacosamide).
  2. ResearchAndMarkets. (2022). Global Epilepsy Drugs Market Report.
  3. EMA. (2022). Approval of lacosamide for pediatric use in Europe.
  4. ClinicalTrials.gov. Ongoing trials involving lacosamide.
  5. Recent pharmacokinetic studies and safety assessments.

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