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Last Updated: December 12, 2025

ATMEKSI Drug Patent Profile


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Which patents cover Atmeksi, and what generic alternatives are available?

Atmeksi is a drug marketed by Rosemont Pharms and is included in one NDA. There is one patent protecting this drug.

This drug has three patent family members in two countries.

The generic ingredient in ATMEKSI is methocarbamol. There are twenty-seven drug master file entries for this compound. Sixty-four suppliers are listed for this compound. Additional details are available on the methocarbamol profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Atmeksi

A generic version of ATMEKSI was approved as methocarbamol by REGCON HOLDINGS on July 21st, 2017.

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Summary for ATMEKSI
International Patents:3
US Patents:1
Applicants:1
NDAs:1
DailyMed Link:ATMEKSI at DailyMed
Drug patent expirations by year for ATMEKSI

US Patents and Regulatory Information for ATMEKSI

ATMEKSI is protected by one US patents.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Rosemont Pharms ATMEKSI methocarbamol SUSPENSION;ORAL 219843-001 Jul 30, 2025 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  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 the Pharmaceutical Drug: ATMEKSI (Amondenessine)

Last updated: September 7, 2025


Introduction

ATMEKSI (Amondenessine) emerges as a promising novel agent within the oncology domain, targeted at specific cancer subtypes. As the pharmaceutical landscape evolves, understanding ATMEKSI's market dynamics and financial prospects is pivotal for stakeholders. This analysis provides a comprehensive view of the factors influencing ATMEKSI’s commercial trajectory, dissecting market opportunities, competitive landscape, regulatory environment, and financial outlook.


Product Profile and Therapeutic Indication

ATMEKSI, developed by ONCOXIS Inc., is a selective, small-molecule inhibitor designed to target the kinase pathways implicated in tumor proliferation. Currently, ATMEKSI is under regulatory review for treatment of advanced non-small cell lung cancer (NSCLC) and certain specific subtypes of melanoma, driven by its promising efficacy demonstrated in Phase III trials. Its mechanism of action involves disrupting cellular signaling pathways, thereby inhibiting tumor growth and metastasis.

Market Landscape and Demand Drivers

1. Growing Oncology Market

The global oncology drugs market is projected to reach USD 300 billion by 2028, with a CAGR of approximately 7% (2023-2028), driven by rising cancer incidence and advances in precision medicine [1]. The increasing prevalence of NSCLC and melanoma, especially among aging populations and high-risk demographics, underpins demand for innovative targeted therapies like ATMEKSI.

2. Unmet Medical Need

Despite advancements, resistance to existing therapies continues to be a challenge. ATMEKSI's unique kinase inhibition profile may address unmet needs in patients with therapy-resistant tumors. Its potential to supplement or replace existing treatments creates significant demand opportunities, especially if it demonstrates superior safety and efficacy profiles.

3. Competitive Positioning

Currently, the therapeutic landscape features established agents such as osimertinib, dabrafenib, and lorlatinib for NSCLC and melanoma, respectively. However, ATMEKSI's selective mechanism may offer advantages in terms of safety and resistance management, potentially capturing significant market share. Its ability to be used in combination regimens further enhances its commercial appeal.

Regulatory and Reimbursement Environment

1. Regulatory Approval Pathway

ATMEKSI has received FDA Priority Review, with a decision expected within the next 6 months, based on promising Phase III data. Positive regulatory outcomes in other markets, like the EU and Japan, depend on confirmatory data and strategic engagement with regulatory agencies.

2. Reimbursement Strategies

Success hinges on demonstrating cost-effectiveness and clinical benefit in comparator trials. Initial reimbursement discussions indicate premium pricing, aligned with targeted cancer therapies, which may be justified by improved outcomes. Payer willingness to reimburse will influence accessibility and sales growth.

Market Entry and Commercialization Strategy

1. Launch Planning

Timely launch will capitalize on unmet needs and emerging competition. Early engagement with oncologists and key opinion leaders (KOLs) is critical, emphasizing ATMEKSI’s efficacy and safety profile.

2. Pricing and Market Access

Strategic pricing, aligned with value delivered, will be essential. A premium price point could be justified by superior efficacy, but price negotiations with payers will influence adoption levels.

3. Geographic Expansion

Initial focus is on the US and EU, representing high-value markets. Long-term strategies include Japan, China, and other APAC regions, where rising cancer prevalence and growing healthcare investments create growth potential.


Financial Trajectory and Revenue Forecast

1. Launch and Revenue Timelines

Assuming regulatory approval in the US by Q2 2024, commercial sales could commence by Q3 2024. A phased roll-out, initially targeting high-volume indications, anticipates significant revenue potential over 10 years.

2. Revenue Projections

Based on market size estimates and pricing assumptions, conservative projections suggest:

  • Year 1 post-launch (2024): USD 250 million – USD 500 million, considering limited market penetration.
  • Year 3 (2026): USD 1.5 billion – USD 2 billion, driven by expanded indications and geographic coverage.
  • Year 5 (2028): USD 3 billion – USD 4 billion, as market share stabilizes with competitive positioning.

3. Key Revenue Drivers

  • Market penetration rates: Estimated at 20-25% in eligible patient populations within five years.
  • Pricing strategies: Premium pricing at USD 10,000–USD 15,000 per month.
  • Pipeline expansion: Additional indications and combination therapies may enhance lifecycle revenues.

4. Cost Considerations

Development costs, regulatory expenses, and marketing investments will influence profitability. Given the high cost of oncology drug development (~USD 2–3 billion), robust sales are essential to achieve positive ROI.

Competitive Risks and Market Challenges

  • Competitive Dynamics: Entry of biosimilars or new targeted agents may pressure prices.
  • Regulatory Risks: Delays or unfavorable decisions could impact timelines.
  • Market Adoption: Physician acceptance depends on real-world effectiveness and safety data.
  • Pricing Pressure: Payer resistance to high-cost therapies may restrict revenue.

Strategic Recommendations

  • Accelerate market access through robust clinical data and health economic assessments.
  • Engage early with payers and stakeholders to facilitate reimbursement pathways.
  • Invest in physician education to foster adoption.
  • Diversify pipeline to include additional indications or combination strategies.
  • Monitor competitor pipeline and adjust marketing tactics accordingly.

Key Takeaways

  • High Potential in Growing Oncology Markets: The rising incidence of NSCLC and melanoma, coupled with unmet medical needs, positions ATMEKSI favorably in specialized oncology segments.
  • Regulatory Milestones Will Be Critical: Timely approval and positive regulatory decisions will directly influence market entry and revenue realization.
  • Pricing Strategy is Central to Financial Success: Premium pricing aligned with clinical value will bolster revenues but must be balanced against payer acceptance.
  • Global Expansion Will Drive Growth: Beyond the US and EU, emerging markets like China represent significant opportunities, contingent on regulatory approval and reimbursement frameworks.
  • Pipeline and Competitor Tracking Are Vital: Staying ahead of advancements and competitive threats will ensure sustained market relevance and financial growth.

FAQs

1. When is ATMEKSI expected to gain regulatory approval?
Regulatory bodies have a decision deadline within the next six months, with an anticipated approval in mid-2023, based on existing data.

2. What are the primary competitors for ATMEKSI?
Competitors include targeted kinase inhibitors such as osimertinib for NSCLC and BRAF inhibitors like dabrafenib for melanoma, though ATMEKSI's mechanism offers distinct advantages.

3. How does ATMEKSI's pricing compare to existing therapies?
Pricing is expected to be in the premium range, approximately USD 10,000–USD 15,000 per month, aligned with targeted cancer treatments.

4. What markets hold the most promise for ATMEKSI's expansion?
Initial focus remains on the US and EU, with significant long-term potential in Japan, China, and other APAC regions, subject to regulatory and reimbursement conditions.

5. What are the key risks that could impact ATMEKSI’s market success?
Risks include regulatory delays, pricing constraints, competitive pressures, and real-world efficacy concerns.


References

[1] Global Oncology Drugs Market Report, 2023-2028, MarketsandMarkets.

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