Last Updated: July 25, 2026

L-GLUTAMINE Drug Patent Profile


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When do L-glutamine patents expire, and when can generic versions of L-glutamine launch?

L-glutamine is a drug marketed by Annora Pharma, Novitium Pharma, and Renova Pharms. and is included in three NDAs.

The generic ingredient in L-GLUTAMINE is l-glutamine. There are forty-five drug master file entries for this compound. Four suppliers are listed for this compound. Additional details are available on the l-glutamine profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for L-glutamine

A generic version of L-GLUTAMINE was approved as l-glutamine by NOVITIUM PHARMA on July 8th, 2024.

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Summary for L-GLUTAMINE
Recent Clinical Trials for L-GLUTAMINE

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SponsorPhase
NYU Langone HealthPHASE2
Synhale TheraputicsPHASE1
Chan, Stephen, MD, PhDPHASE1

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Pharmacology for L-GLUTAMINE
Drug ClassAmino Acid

US Patents and Regulatory Information for L-GLUTAMINE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Annora Pharma L-GLUTAMINE l-glutamine FOR SOLUTION;ORAL 219722-001 May 26, 2026 AA RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Novitium Pharma L-GLUTAMINE l-glutamine FOR SOLUTION;ORAL 215647-001 Jul 8, 2024 AA RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Renova Pharms L-GLUTAMINE l-glutamine FOR SOLUTION;ORAL 219750-001 May 14, 2026 AA RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Market Overview and Financial Trends for L-Glutamine

Last updated: February 16, 2026

L-glutamine, a non-essential amino acid with applications in medical nutrition, sports supplements, and clinical therapeutics, has experienced fluctuating market demand driven by regulatory changes, clinical research, and manufacturing capacity. Its financial outlook reflects evolving segment-specific growth and broader pharmaceutical market forces.


Market Size and Growth Trends

As of 2022, the global l-glutamine market is valued approximately at USD 1.2 billion, with a compound annual growth rate (CAGR) of about 7.3% projected through 2027. The growth stems from increased demand in clinical nutrition, especially for gastrointestinal and immuno-compromised patients, as well as sports and wellness sectors.

Year Market Size (USD Billion) CAGR (2022-2027)
2022 1.2 7.3%
2027 1.84

North America holds the largest market share, around 50%, fueled by healthcare infrastructure and aging populations. Asia-Pacific reports the fastest growth, driven by expanding pharmaceutical manufacturing and increasing health awareness.


Segment-Specific Dynamics

Therapeutic Use

L-glutamine's role in managing symptoms in conditions such as chemotherapy-induced mucositis and gastrointestinal disorders maintains steady demand in clinical settings. Regulatory approvals vary, with the U.S. FDA recognizing it as an orphan drug for specific conditions.

Nutritional Supplements

A significant portion, nearly 45%, of l-glutamine sales derive from dietary supplements. The sports nutrition market accounts for most of this, with growth driven by consumer interest in muscle recovery and immune health.

Pharmaceutical Industry

Manufacturing capacity margins are concentrated among key players such as Ajinomoto, Kyowa Hakko Kirin, and Fresenius Kabi. Market entry barriers include regulatory approvals and high raw material costs, typically around USD 4,500–USD 5,500 per metric ton.


Regulatory and Supply Chain Factors

Recent changes in pharmaceutical regulations, including stricter Good Manufacturing Practices (GMP), elevate compliance costs but improve product quality. Import-export policies influence supply stability, especially in countries like India and China, where most global production occurs.

Trade tensions and patent expirations have introduced volatility. Patent cliffs for formulations or production processes could impact revenue streams globally.


Financial Trajectory

Revenue Trends

Major manufacturers report stable revenues, with Ajinomoto’s amino acid division crossing USD 3 billion in 2022, a 4% increase year-over-year, of which approximately 7% is attributable to l-glutamine.

Profitability

Gross margins for l-glutamine products generally range from 35% to 45%, with higher margins in specialty pharmaceuticals compared to commodity-grade supplements. Cost pressures from raw material prices and increased regulatory compliance account for some margin compression.

Investment and R&D

Industry investments focus on sustainable manufacturing methods, such as enzyme-based processes, to reduce carbon footprint and raw material dependency. R&D budgets are typically less than 2% of sales but focus on novel delivery systems and new therapeutic indications.


Competitive Landscape

Key players include Ajinomoto (Japan), Kyowa Hakko Kirin (Japan), and CJ CheilJedang (South Korea). Market share distribution indicates Ajinomoto holds around 35%, Kyowa Hakko Kirin 20%, with the remaining distributed among smaller firms and generics.

Emerging players from India and China are expanding capacity, potentially impacting global pricing and margins via cost competition.


Future Outlook

Market growth will fuel capacity expansions, possibly leading to oversupply in certain segments. The move towards more sustainable production and biosynthetic processes could reshape the industry, reducing costs and environmental impact.

Clinical research into new therapeutic applications, such as neurodegenerative diseases and cancer cachexia, may open additional revenue avenues. However, regulatory hurdles and lengthy approval processes remain significant barriers.


Key Takeaways

  • Global l-glutamine market is valued at USD 1.2 billion (2022), with a CAGR of 7.3% through 2027.
  • North America dominates market share; Asia-Pacific exhibits the fastest growth.
  • Demand is driven by clinical nutrition, sports supplements, and emerging therapeutic applications.
  • Major manufacturers report stable revenues with profit margins around 35-45%.
  • Industry investments focus on sustainable manufacturing, process innovation, and therapeutic research.

FAQs

  1. What factors influence the price of l-glutamine?
    Raw material costs, manufacturing efficiency, regulatory compliance costs, and supply chain stability all influence pricing.

  2. How does regulatory approval affect the market?
    Approval for new indications expands market potential; regulatory delays hinder growth and introduce revenue uncertainty.

  3. What are the main challenges facing producers?
    High raw material costs, regulatory hurdles, and environmental sustainability requirements.

  4. What therapeutic innovations could impact future demand?
    Research into neurodegenerative diseases, oncology, and immune-modulating therapies could diversify applications.

  5. What are the prospects of biosynthetic l-glutamine?
    Biosynthesis offers cost and sustainability benefits, potentially lowering prices and increasing margins in the future.


Sources

[1] MarketResearch.com, "L-Glutamine Market Analysis," 2022
[2] Grand View Research, "Amino Acids Market Size & Forecast," 2022
[3] Ajinomoto Group, Annual Report 2022
[4] Kyowa Hakko Kirin, Corporate Briefing, 2022
[5] Food and Drug Administration (FDA), Regulatory Policies on Amino Acids, 2022

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