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Last Updated: December 11, 2025

Lomustine - Generic Drug Details


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What are the generic sources for lomustine and what is the scope of patent protection?

Lomustine is the generic ingredient in two branded drugs marketed by Azurity and Carnegie, and is included in two NDAs. Additional information is available in the individual branded drug profile pages.

There are two drug master file entries for lomustine. Three suppliers are listed for this compound.

Summary for lomustine
US Patents:0
Tradenames:2
Applicants:2
NDAs:2
Drug Master File Entries: 2
Finished Product Suppliers / Packagers: 3
Raw Ingredient (Bulk) Api Vendors: 116
Clinical Trials: 112
What excipients (inactive ingredients) are in lomustine?lomustine excipients list
DailyMed Link:lomustine at DailyMed
Recent Clinical Trials for lomustine

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
European Organisation for Research and Treatment of Cancer - EORTCPHASE3
Cooperative Trials Group for Neuro-Oncology (COGNO)PHASE3
Canadian Cancer Trials GroupPHASE3

See all lomustine clinical trials

Pharmacology for lomustine
Drug ClassAlkylating Drug
Mechanism of ActionAlkylating Activity
Medical Subject Heading (MeSH) Categories for lomustine

US Patents and Regulatory Information for lomustine

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Azurity GLEOSTINE lomustine CAPSULE;ORAL 017588-004 Dec 19, 2014 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Carnegie LOMUSTINE lomustine CAPSULE;ORAL 219265-003 Oct 27, 2025 AB RX No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Carnegie LOMUSTINE lomustine CAPSULE;ORAL 219265-001 Oct 27, 2025 AB RX No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Azurity GLEOSTINE lomustine CAPSULE;ORAL 017588-002 Approved Prior to Jan 1, 1982 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Market Dynamics and Financial Trajectory for LOMUSTINE

Last updated: August 1, 2025

Introduction

LOMUSTINE, a nitrosourea alkylating agent, is primarily employed in the treatment of certain brain cancers and lymphomas. Its unique pharmacological profile has positioned it as a critical component in oncology therapy, particularly for gliomas and lymphomas refractory to conventional treatments. Despite its established clinical utility, the drug landscape and market trajectory for LOMUSTINE are subject to evolving market dynamics driven by regulatory, technological, and competitive factors. This analysis explores these factors to inform stakeholders on the future financial prospects and strategic considerations surrounding LOMUSTINE.

Market Overview and Therapeutic Indications

LOMUSTINE, marketed under brand names such as CeeNu and Gleostine, has carved a niche in neuro-oncology for glioblastoma multiforme (GBM) management. The National Comprehensive Cancer Network (NCCN) guidelines recommend its use in conjunction with radiotherapy or as a relapse therapy [1]. Its capacity to cross the blood-brain barrier underscores its clinical significance in central nervous system (CNS) tumors.

In addition to GBM, LOMUSTINE is approved for Hodgkin's and non-Hodgkin's lymphomas. However, the usage intensity varies globally, influenced by alternative therapies, regulatory approvals, and emerging treatment paradigms. The global oncology market’s compound annual growth rate (CAGR) is projected at approximately 7% over the next five years, creating a favorable environment for drugs like LOMUSTINE, especially given unmet needs in resistant tumor types [2].

Market Drivers

1. Growing Burden of CNS Tumors

The incidence of primary brain tumors, including gliomas, is rising, particularly in aging populations. According to the Global Cancer Observatory, CNS tumors are expected to increase at an annual rate of 3.5%. The limited efficacy of existing therapies and the blood-brain barrier’s challenge amplify LOMUSTINE’s relevance in treatment regimens.

2. Advancements in Combination Therapy

LOMUSTINE’s combination with radiotherapy or other chemotherapeutic agents like temozolomide enhances survival outcomes. The integration of LOMUSTINE into standard-of-care protocols, especially in recurrent cases, sustains demand. Ongoing clinical trials exploring its synergy with immune checkpoint inhibitors could further expand its use [3].

3. Regulatory Support and Approvals

The FDA’s approval status for LOMUSTINE in relapsed malignant gliomas and its inclusion in NCCN guidelines bolster its market presence. Additionally, orphan drug designations in several countries incentivize development activities and market exclusivity, supporting revenue stability.

4. Patent and Market Exclusivity

While patent protection for LOMUSTINE has largely expired, exclusivity periods from orphan drug designations and regulatory barriers limit generic competition in specific regions, preserving pricing power and profit margins.

Market Challenges

1. Toxicity and Safety Profile

LOMUSTINE’s notable side effects—myelosuppression, pulmonary toxicity, and secondary malignancies—limit its use and influence physician prescribing behavior. The safety concerns necessitate careful patient selection, impacting market penetration.

2. Competition from Targeted and Immunotherapies

Emerging treatments like tumor-treating fields and immune checkpoint inhibitors challenge traditional chemotherapeutics. The advent of personalized medicine and molecular targeting reduces reliance on broad-spectrum agents like LOMUSTINE [4].

3. Regulatory and Reimbursement Dynamics

Pricing pressures and reimbursement constraints, especially in cost-sensitive markets, potentially restrict access and revenue. The drug’s high toxicity profile further complicates reimbursement negotiations, emphasizing the need for patient management resources.

4. Manufacturing and Supply Chain Constraints

Complex synthesis processes and stringent regulatory requirements can hinder supply stability. Any disruption could adversely affect market availability and financial performance.

Financial Trajectory and Market Forecast

Current Revenue Streams

LOMUSTINE’s current global sales are estimated in the low hundreds of millions USD annually, predominantly from North America and Europe. Its niche positioning in CNS oncology ensures steady, albeit modest, revenue contribution, with incremental growth driven by new indications and combination therapies.

Future Growth Potential

Analysts project a moderate growth rate for LOMUSTINE’s market segment, with a CAGR of approximately 4-5% over the next five years. Factors contributing to this outlook include:

  • Increased incidence and diagnosis of gliomas.
  • Expansion into combination regimens with emerging therapeutics.
  • Regulatory approvals for new indications or improved formulations.

Emerging Opportunities and Strategic Moves

Customized drug delivery systems and reduced toxicity formulations could reinvigorate LOMUSTINE’s market potential. Partnerships with biotech firms focusing on targeted delivery (e.g., nanoparticles) and biomarkers for patient stratification may enhance efficacy and safety profiles, expanding its therapeutic window.

Impact of Biosimilars and Generics

Patent expiration and regulatory pathways facilitating biosimilar development pose long-term threats to exclusivity. However, the complex manufacturing and regulatory hurdles for generics of cytotoxic agents like LOMUSTINE may delay fierce price competition, affording brand stakeholders some market durability.

Regulatory Outlook and Policy Environment

Global regulatory landscapes are increasingly emphasizing safety and real-world evidence. Clarification of LOMUSTINE’s risk profile and post-marketing surveillance can influence approval extensions and off-label uses, impacting financial projections positively.

Policy shifts favoring access to innovative therapies and mandates to reduce healthcare costs can pressure pricing models. Conversely, incentives linked to orphan status may sustain market exclusivity and revenues.

Competitive Landscape

LOMUSTINE faces competition from newer alkylating agents, targeted therapies, and immunotherapies. Notably, bevacizumab, an anti-VEGF agent, and tumor-treating fields have gained popularity in GBM management. Nonetheless, LOMUSTINE’s simplicity, affordability, and international approval status sustain its relevance.

Further, innovation is ongoing in developing novel formulations with improved targeting, possibly threatening traditional formulations' market share. Companies with robust R&D pipelines focusing on CNS drug delivery could shape future competitiveness.

Conclusion

LOMUSTINE’s market dynamics are characterized by a stable yet evolving landscape. Its entrenched role in neuro-oncology, coupled with regulatory support and unmet medical needs, provides a foundation for continued relevance and modest growth. However, safety concerns, competition from advanced therapies, and biosimilar threats pose challenges. Strategic investments in formulation improvements, combination regimens, and biomarker-driven treatments are critical to leveraging its full market potential.

Key Takeaways

  • Stable Niche: LOMUSTINE maintains a critical position in CNS oncology due to its ability to cross the blood-brain barrier and efficacy in resistant gliomas.
  • Growth Drivers: Rising CNS tumor incidence, combination therapy integration, and orphan drug incentives underpin its future prospects.
  • Market Challenges: Toxicity profile, competition from targeted/immunotherapies, and regulatory pressures necessitate innovation and strategic positioning.
  • Financial Outlook: Moderate growth anticipated, with potential boosts from new formulations and indications, while generic competition may erode margins over the long term.
  • Strategic Recommendations: Focus on safety profile improvements, biomarker development for patient selection, and leveraging regulatory incentives to sustain market share.

FAQs

1. How does LOMUSTINE compare with newer targeted therapies in glioma treatment?
LOMUSTINE offers broad-spectrum alkylation with proven efficacy in refractory gliomas; however, targeted therapies and immunotherapies demonstrate more precise action and potentially fewer side effects. Its role is increasingly adjunctive rather than front-line, necessitating strategic positioning.

2. What are the primary safety concerns associated with LOMUSTINE?
Myelosuppression, pulmonary toxicity, and secondary malignancies are notable. These adverse effects limit use to carefully selected patients and necessitate monitoring, influencing both uptake and reimbursement.

3. Can LOMUSTINE’s market growth accelerate with ongoing clinical trials?
Yes, if clinical trials demonstrate significant survival benefits or reduced toxicity, regulatory approval for new indications or formulations could catalyze market expansion.

4. What is the impact of biosimilar development on LOMUSTINE’s market?
Biosimilars could reduce costs and improve access, but complex manufacturing and regulatory hurdles may delay market entry, providing existing manufacturers with temporary pricing power.

5. Are there ongoing innovations that could extend LOMUSTINE’s clinical utility?
Research into nanoparticle-based delivery systems, combination regimens with immunomodulators, and biomarkers for response prediction could enhance efficacy and safety, extending its market relevance.


Sources:
[1] NCCN Clinical Practice Guidelines in Oncology. Central Nervous System Cancers.
[2] Global Oncology Market Report, 2022.
[3] ClinicalTrials.gov. Studies involving LOMUSTINE combinations in glioma.
[4] Recent advances in CNS tumor therapeutics, Journal of Neuro-Oncology.

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