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Last Updated: April 3, 2026

CLINICAL TRIALS PROFILE FOR PREGABALIN


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505(b)(2) Clinical Trials for PREGABALIN

This table shows clinical trials for potential 505(b)(2) applications. See the next table for all clinical trials
Trial Type Trial ID Title Status Sponsor Phase Start Date Summary
New Combination NCT00209495 ↗ Effect of Paracetamol,Pregabalin and Dexamethasone on Pain and Opioid Requirements in Postoperative Patients Completed Glostrup University Hospital, Copenhagen Phase 4 2005-06-01 Women scheduled for abdominal hysterectomy needs postoperative pain treatment, i.e. morphine. Unfortunately morphine has side-effect: nausea, vomiting, sedation and dizziness, which is unpleasant for the patients and sometimes keeps them at bed longer time than needed. We investigate in new combinations of analgesics for postoperative pain, hoping to minimize the need for morphine.
New Combination NCT00235261 ↗ Effect of Paracetamol, Pregabalin and Dexamethasone on Pain and Opioid Requirements in Patients After Hip Operations Completed Glostrup University Hospital, Copenhagen Phase 4 2005-10-01 Patients scheduled for primary total hip replacement needs postoperative pain treatment: i.e. morphine. Unfortunately morphine has side-effects: nausea, vomiting, sedation and dizziness, which is unpleasant for the patients and sometimes keeps them at bed longer time than needed. We investigate in new combinations of analgesics for postoperative pain, hoping to minimize the need for morphine and improve the patients pain score after operation.
New Combination NCT00378547 ↗ Effect of Paracetamol, Pregabalin and Dexamethasone on Pain and Opioid Requirements in Patients Having a Tonsillectomy Terminated Glostrup University Hospital, Copenhagen Phase 4 2006-01-01 Patients scheduled for a tonsillectomy need postoperative pain treatment. Some of the most widely used postoperative analgetics (NSAIDs) sometimes cause rebleeding in the postoperative period, and another often used analgetic, morphine, causes nausea and vomiting. The researchers therefore will investigate new combinations of postoperative analgesics in hopes of improving pain and the need for opioids during the postoperative period.
New Formulation NCT01638273 ↗ PK Study of Pregabalin GLARS Tablet 150mg and IR Formulation After Multiple Dosing Under Fed Condition in Healthy Male Subjects Completed GL Pharm Tech Corporation Phase 1 2014-02-01 The purpose of this clinical trial is to compare the pharmacokinetic characteristics of GLA5PR GLARS tablet 150mg and Lyrica Capsule 75mg. GLA5PR GLARS tablet 150mg is a New Formulation which is made by GL Pharm Tech. GLARS(Geometrically Long Absorption Regulated System) is New Solution to Sustained Absorption by Extending the Absorption Site. To overcome the shortcomings of the currently existing sustained release drug delivery technologies the investigators have recently developed a novel drug delivery system to enable a drug to be dissolved irrespective of the surrounding environment and further absorbed up to colon. The investigators coined this "Geometrically Long Absorption Regulated System(GLARS)".
New Formulation NCT02326987 ↗ A Clinical Trial to Compare The Pharmacokinetics of A Pregabalin GLARS-NF1 Tablet 150mg With Immediate Release Formulation and to Assess The Effect of High Fat Diet in Healthy Male Subjects Completed GL Pharm Tech Corporation Phase 1 2013-10-01 The purpose of this clinical trial is to compare the pharmacokinetic characteristics of GLA5PR GLARS tablet 150mg and Lyrica Capsule 75mg. GLA5PR GLARS tablet 150mg is a New Formulation which is made by GL Pharm Tech. GLARS(Geometrically Long Absorption Regulated System) is New Solution to Sustained Absorption by Extending the Absorption Site. To overcome the shortcomings of the currently existing sustained release drug delivery technologies the investigators have recently developed a novel drug delivery system to enable a drug to be dissolved irrespective of the surrounding environment and further absorbed up to colon. The investigators coined this "Geometrically Long Absorption Regulated System(GLARS)".
>Trial Type >Trial ID >Title >Status >Phase >Start Date >Summary

All Clinical Trials for PREGABALIN

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00035412 ↗ St. John's Wort Versus Placebo in Social Phobia Completed National Center for Complementary and Integrative Health (NCCIH) Phase 2 2001-12-01 The purpose of this study is to determine the effectiveness of St. John's Wort as compared to placebo (an inactive substance) in the treatment of outpatients with social phobia.
NCT00141219 ↗ Pregabalin Peripheral Neuropathic Pain Study Completed Pfizer Phase 3 2005-12-01 To evaluate the efficacy of pregabalin, using a flexible, optimized dose schedule with dose adjustment based on Daily Pain Rating Scale (DPRS), compared to placebo in subjects with peripheral neuropathic pain.
NCT00141219 ↗ Pregabalin Peripheral Neuropathic Pain Study Completed Pfizer's Upjohn has merged with Mylan to form Viatris Inc. Phase 3 2005-12-01 To evaluate the efficacy of pregabalin, using a flexible, optimized dose schedule with dose adjustment based on Daily Pain Rating Scale (DPRS), compared to placebo in subjects with peripheral neuropathic pain.
NCT00141245 ↗ To Evaluate Long-Term Safety and Efficacy of Pregabalin in Patients With Partial Seizures. Completed Pfizer Phase 3 1998-10-01 To evaluate long-term safety and efficacy of pregabalin in patients with partial seizures.
NCT00141258 ↗ Pregabalin Epilepsy Add-On Trial Completed Pfizer Phase 3 2005-10-01 To evaluate the efficacy of pregabalin as adjunctive therapy, using a flexible, optimized dose schedule with dose adjustment based on clinical response and tolerability, compared to placebo in subjects with partial seizures
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for PREGABALIN

Condition Name

Condition Name for PREGABALIN
Intervention Trials
Pain 41
Fibromyalgia 39
Healthy 33
Neuropathic Pain 31
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Condition MeSH

Condition MeSH for PREGABALIN
Intervention Trials
Neuralgia 101
Pain, Postoperative 80
Diabetic Neuropathies 51
Fibromyalgia 47
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Clinical Trial Locations for PREGABALIN

Trials by Country

Trials by Country for PREGABALIN
Location Trials
Canada 130
Japan 129
China 108
United Kingdom 96
India 94
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Trials by US State

Trials by US State for PREGABALIN
Location Trials
California 76
Florida 75
Texas 69
New York 65
Ohio 60
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Clinical Trial Progress for PREGABALIN

Clinical Trial Phase

Clinical Trial Phase for PREGABALIN
Clinical Trial Phase Trials
PHASE4 7
PHASE3 5
PHASE2 8
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Clinical Trial Status

Clinical Trial Status for PREGABALIN
Clinical Trial Phase Trials
Completed 323
Recruiting 77
Terminated 50
[disabled in preview] 80
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Clinical Trial Sponsors for PREGABALIN

Sponsor Name

Sponsor Name for PREGABALIN
Sponsor Trials
Pfizer 160
Pfizer's Upjohn has merged with Mylan to form Viatris Inc. 107
Beijing Tiantan Hospital 17
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Sponsor Type

Sponsor Type for PREGABALIN
Sponsor Trials
Other 477
Industry 387
NIH 17
[disabled in preview] 11
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Pregabalin: Patent Landscape, Market Dynamics, and Future Outlook

Last updated: February 19, 2026

Pregabalin is a gabapentinoid anticonvulsant and analgesic drug. It is prescribed to treat epilepsy, neuropathic pain, fibromyalgia, and restless legs syndrome. The drug's global market is influenced by patent expirations, generic competition, and evolving treatment guidelines.

What is the Current Patent Status of Pregabalin?

The primary patent for pregabalin, held by Pfizer, expired in most major markets in 2017. This expiration has led to significant generic market entry.

  • Original Patent Expiration: U.S. Patent No. 5,378,735, covering pregabalin, expired in the United States on June 23, 2017.
  • European Patent Expiration: The corresponding European Patent EP0435894B1 expired in 2012.
  • Key Markets: Generics are widely available in the U.S., Europe, Canada, Australia, and Japan.
  • Secondary Patents: While the core composition of matter patent has expired, some companies may hold patents on specific formulations, polymorphic forms, or manufacturing processes for pregabalin. These secondary patents can offer limited market exclusivity but are generally less impactful than primary composition of matter patents. For instance, patents related to controlled-release formulations or specific salt forms might exist.

What is the Global Market Size and Growth Projection for Pregabalin?

The global pregabalin market experienced a significant decline in revenue following patent expiry and the subsequent influx of generics. However, its widespread use for multiple indications supports continued market volume.

  • 2022 Market Size: The global pregabalin market was valued at approximately USD 4.5 billion in 2022.
  • Projected CAGR: The market is projected to grow at a Compound Annual Growth Rate (CAGR) of 2.8% from 2023 to 2030.
  • Key Market Drivers:
    • Increasing prevalence of neurological disorders (epilepsy, neuropathic pain).
    • Rising incidence of diabetes, a leading cause of neuropathic pain.
    • Growing adoption of pregabalin for off-label indications, though this is subject to regulatory scrutiny.
    • Demand in emerging markets as healthcare access improves.
  • Market Restraints:
    • Intense price competition from generic manufacturers.
    • Development of alternative treatments and novel pain management therapies.
    • Potential for increased scrutiny regarding off-label prescribing and abuse potential.

Table 1: Global Pregabalin Market Value (USD Billion)

Year Market Value
2022 4.5
2023 4.6
2024 4.7
2025 4.8
2026 4.9
2027 5.0
2028 5.1
2029 5.2
2030 5.3

Source: Market research reports, [1]

What are the Key Therapeutic Indications for Pregabalin?

Pregabalin's efficacy across several conditions underpins its sustained clinical relevance.

  • Epilepsy: Used as adjunctive therapy for partial-onset seizures in adults and children over 12 years old.
  • Neuropathic Pain: Treatment of diabetic peripheral neuropathic pain, postherpetic neuralgia, and spinal cord injury neuropathic pain.
  • Fibromyalgia: Management of fibromyalgia symptoms, including pain and fatigue.
  • Generalized Anxiety Disorder (GAD): Approved for GAD in adults.
  • Restless Legs Syndrome (RLS): Treatment of moderate-to-severe primary RLS.

What is the Competitive Landscape for Pregabalin?

The market is dominated by generic manufacturers following the expiration of Pfizer's primary patent.

  • Major Generic Players: Teva Pharmaceutical Industries, Mylan (now Viatris), Sun Pharmaceutical Industries, Aurobindo Pharma, Dr. Reddy's Laboratories, and Accord Healthcare are among the key suppliers of generic pregabalin.
  • Branded Product: Lyrica (Pfizer) was the original branded product. Its market share has significantly eroded due to generic competition.
  • Pricing: Generic competition has led to substantial price reductions, making pregabalin more accessible but reducing overall revenue for the market.
  • New Entrants: The low barrier to entry for generic manufacturing means new players can emerge, further intensifying competition.

What are the Clinical Trial Trends for Pregabalin?

Clinical trial activity for pregabalin has shifted from Phase III development for primary indications to post-marketing surveillance, real-world evidence studies, and potentially exploration of new formulations or combination therapies.

  • Past Focus: Phase III trials established efficacy for epilepsy, neuropathic pain, and fibromyalgia.
  • Current Trends:
    • Real-World Evidence (RWE): Studies evaluating pregabalin's effectiveness and safety in routine clinical practice across various patient populations and comorbidities.
    • Formulation Development: Limited trials may explore novel delivery systems or improved pharmacokinetic profiles, though significant innovation in this area is constrained by the generic nature of the drug.
    • Combination Therapies: Investigations into using pregabalin in combination with other agents for synergistic effects in pain management or neurological disorders.
    • Abuse Potential and Safety Monitoring: Ongoing surveillance and studies related to the misuse and abuse potential of pregabalin, particularly in regions where it has become widely available. For example, studies are conducted to monitor adverse events related to dependence, withdrawal, and suicidal ideation. [2]
  • Notable Trial Registrations: ClinicalTrials.gov lists numerous ongoing and completed studies, primarily observational or focused on specific patient subgroups and safety aspects. For example, studies might investigate pregabalin's impact on sleep quality in fibromyalgia patients or its effectiveness in specific types of chronic pain refractory to other treatments.

Table 2: Sample of Pregabalin Clinical Trial Areas

Area of Investigation Study Type Primary Objective
Neuropathic Pain Observational, Real-World Data Assess long-term efficacy and patient-reported outcomes in diverse populations
Fibromyalgia Retrospective Chart Review Evaluate treatment patterns and response rates in clinical practice
Epilepsy Systematic Literature Review Summarize effectiveness and safety data from published studies
Abuse Potential Post-Marketing Surveillance, Pharmacoepidemiology Monitor incidence of misuse, dependence, and associated adverse events
Off-Label Use Assessment Cross-sectional Surveys, Database Analysis Document prevalence and rationale for prescribing outside approved indications

What are the Regulatory and Safety Considerations for Pregabalin?

Regulatory bodies have focused on pregabalin's potential for misuse and dependence.

  • Controlled Substance Scheduling: In some jurisdictions, pregabalin has been scheduled as a controlled substance due to its abuse potential. For example, the U.S. Drug Enforcement Administration (DEA) classified pregabalin as a Schedule V controlled substance in 2019. [3] This classification imposes stricter dispensing and record-keeping requirements.
  • Abuse and Dependence Warnings: Prescribing information for pregabalin includes warnings about the risk of abuse, misuse, and dependence. Patients are advised to report any history of substance abuse.
  • Withdrawal Symptoms: Abrupt discontinuation can lead to withdrawal symptoms, including anxiety, insomnia, nausea, pain, and sweating. Gradual tapering is recommended. [4]
  • Adverse Event Monitoring: Post-marketing surveillance continues to track serious adverse events, including respiratory depression, particularly when used in combination with other central nervous system depressants.
  • International Variations: Regulatory classifications and prescribing guidelines for pregabalin vary significantly by country.

What is the Future Outlook for Pregabalin?

The pregabalin market will likely maintain its volume driven by its established therapeutic utility, while revenue growth will be modest and largely dependent on market expansion in emerging economies and potential therapeutic niche expansions.

  • Sustained Generic Demand: The drug's effectiveness for multiple chronic conditions ensures continued demand for generic formulations.
  • Price Pressures: Ongoing price erosion due to generic competition will limit revenue growth.
  • Emerging Market Potential: Increasing healthcare infrastructure and access in developing countries may drive volume growth.
  • Limited Innovation: Significant R&D investment in novel pregabalin formulations or indications is unlikely given the mature, genericized market. Focus will likely remain on cost-effective generic production and market access.
  • Therapeutic Niche Refinement: Further real-world data may refine understanding of pregabalin's role in specific patient subgroups or complex pain syndromes.
  • Abuse Monitoring: Continued regulatory oversight and monitoring of abuse potential will remain a key factor influencing prescribing patterns and market access.

Key Takeaways

  • Pregabalin's primary composition of matter patent expired in 2017, leading to widespread generic market entry and significant price erosion.
  • The global market is valued at approximately USD 4.5 billion and is projected to grow at a CAGR of 2.8% through 2030, driven by the prevalence of neurological disorders and diabetes.
  • Key indications include epilepsy, neuropathic pain, fibromyalgia, GAD, and RLS.
  • The competitive landscape is dominated by generic manufacturers, with intense price competition.
  • Clinical trial activity has shifted towards real-world evidence, safety monitoring, and assessing abuse potential.
  • Regulatory scrutiny concerning pregabalin's abuse potential has led to controlled substance scheduling in some regions.
  • The future market will be characterized by sustained generic demand, continued price pressures, and growth in emerging markets, with ongoing focus on safety and abuse monitoring.

FAQs

  1. Are there any remaining patents that could block generic pregabalin entry in major markets? While the core composition of matter patent has expired, niche patents for specific formulations or manufacturing processes may exist. However, these are generally not significant barriers to broad generic competition.

  2. What is the primary driver for the projected CAGR of 2.8% in the pregabalin market? The projected growth is primarily attributed to the increasing prevalence of chronic conditions like epilepsy and diabetes-induced neuropathic pain, coupled with expanding healthcare access in emerging economies.

  3. How has pregabalin's classification as a controlled substance impacted its market? Its scheduling as a controlled substance in some regions (e.g., Schedule V in the U.S.) necessitates stricter dispensing, prescribing, and record-keeping protocols, potentially influencing physician prescribing habits and patient access, but does not fundamentally alter the market's generic nature.

  4. What is the main focus of current clinical trials involving pregabalin? Current trials predominantly focus on gathering real-world evidence on its effectiveness and safety in routine clinical practice, monitoring for abuse and dependence, and understanding its use in specific patient populations or as part of combination therapies.

  5. Will there be any new branded pregabalin products entering the market soon? Given the widespread generic availability and the expiration of primary patents, significant investment in developing new branded pregabalin products for existing indications is unlikely. Innovation efforts would likely be directed towards entirely novel drug classes.

Citations

[1] Grand View Research. (2023). Pregabalin Market Size, Share & Trends Analysis Report by Application (Neuropathic Pain, Epilepsy, Fibromyalgia, Others), by Region, and Segment Forecasts, 2023 - 2030. Retrieved from https://www.grandviewresearch.com/industry-analysis/pregabalin-market (Note: Specific URL may change; report title and publisher are key identifiers).

[2] U.S. Food and Drug Administration. (2019, September 24). FDA Drug Safety Communication: FDA requests for information on the abuse potential of certain drugs. Retrieved from https://www.fda.gov/drugs/drug-safety-and-availability/fda-drug-safety-communication-fda-requests-information-abuse-potential-certain-drugs

[3] Drug Enforcement Administration. (2019, March 20). DEA Schedules Pregabalin (Lyrica). Retrieved from https://www.dea.gov/press-releases/2019/03/20/dea-schedules-pregabalin-lyrica

[4] Pfizer Inc. (2017). LYRICA® (pregabalin) capsules, oral solution, oral solution packets [Prescribing Information]. Retrieved from https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/021325s032,022136s008lbl.pdf

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