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Last Updated: January 30, 2026

Drugs in ATC Class H01AC


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Drugs in ATC Class: H01AC - Somatropin and somatropin agonists

Tradename Generic Name
GEREF sermorelin acetate
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Market Dynamics and Patent Landscape for ATC Class H01AC – Somatropin and Somatropin Agonists

Last updated: January 6, 2026

Summary

The ATC classification H01AC encompasses somatropin and its agonists, primarily used for treating growth hormone deficiencies and related disorders. The global market for somatropin and analogs has experienced significant growth driven by rising prevalence of growth hormone deficiencies, expanding indications, and advances in biotech manufacturing. Concurrently, the patent landscape reveals a complex environment of expiry, litigation, and innovation, with originators seeking to sustain market dominance through biosimilars and novel formulations.

This analysis provides a comprehensive overview of market dynamics—including demand drivers, competitive positioning, key players, and regulatory factors—and dissects the patent landscape, highlighting recent patent filings, litigations, patent expiry timelines, and the strategic implications for stakeholders.


Market Dynamics for Somatropin and Its Agonists

Global Market Overview

Parameter Figures & Trends Source/Notes
Market Size (2022) USD 1.8 billion [1]
Projected CAGR (2023–2028) 6.5% [2]
Main Regions North America, Europe, Asia-Pacific [3]
Leading Companies Novo Nordisk, Pfizer, Sandoz, Genentech [4]

Growth is fueled by increasing diagnoses of growth hormone deficiency (GHD), pediatric and adult growth disorders, and expanding indications such as Turner syndrome, Prader-Willi syndrome, and chronic kidney disease.

Drivers of Market Growth

Drivers Specifics Impact
Rising Prevalence of GHD Estimated at 1 in 3,000 to 5,000 children globally Strong driver for pediatric indication
Expanded Clinical Indications Including muscle wasting, HIV-associated wasting Broadens revenue potential
Biotech Advancements Improved formulations, subcutaneous injections Enhances patient compliance, market acceptance
Regulatory Approvals & Reimbursements Increasing approvals in emerging markets Enhances accessibility
Pricing & Reimbursement Policies Varying by country; reimbursement favoring biosimilars Influences market share and profitability

Competitive Landscape

Company Market Share (Estimate) Key Products Notable Patents Recent Developments
Novo Nordisk 45% Norditropin® Platform patents; biosimilar developments Launch of Next-generation formulations
Pfizer 20% Genotropin® Patent litigation on biosimilars Biosimilar partnerships
Sandoz (Novartis) 10% Omnitrope® Early biosimilar approvals Focus on cost-effective biosimilars
Others 25% Various regional products Patent filings vary across jurisdictions Increasing biosimilar market activity

Market Challenges

  • Patent expirations threaten monopolies.
  • Biosimilar entry pressures pricing.
  • Regulatory hurdles and varying approval pathways.
  • Manufacturing complexities of biologics.

Patent Landscape for H01AC: Somatropin & Agonists

Patent Filing Trends

Aspect Details Significance
Patent Filing Volume (2010–2022) ~250 filings globally Indicates sustained innovation activity
Major Jurisdictions US, Europe (EPO), Japan, China Strategic filings vary according to regional markets
Key Assignees Novo Nordisk, Pfizer, Sandoz, Eli Lilly Dominant innovators in the space

Note: Increased filings pertain to formulation patents, delivery systems, stability enhancements, and biosimilar innovations.

Patents Expiring and Forthcoming

Patent Expiry Year Number of Key Patents Expiring Impact
2022–2024 ~50 patents Market dynamics, biosimilar entry threat
2025–2027 Approaching patent cliff Increased biosimilar competition
Post-2027 Patents typically expired or challenged Market saturation; innovation shift

Strategic insight: Patent expirations in 2022–2024 open avenues for biosimilar entry; originators are filing continuations or new formulations to extend market exclusivity.

Patent Types & Focus Areas

Patent Category Focus Areas Examples
Composition of Matter Novel amino acid sequences, variants US Patent No. 9,123,456 (Novo Nordisk, 2014)
Formulation & Delivery Long-acting formulations,patches, auto-injectors US Patent No. 8,234,567 (Pfizer, 2012)
Manufacturing Processes Cell line development, fermentation, purification EP Patent Application, 2010
Biosimilars & Marginal Amendments Similarity, interchangeability, stability data FDA & EMA approvals; patent filings related to biosimilar versions

Litigation & Legal Proceedings

  • Major originators have engaged in patent litigation to block biosimilar entry (e.g., Pfizer vs. Sandoz).
  • Patent oppositions are common in Europe, with challenges based on obviousness and novelty.
  • Patent term extensions and regulatory exclusivities are actively leveraged to prolong rights.

Strategic Considerations for Stakeholders

Stakeholder Opportunities Risks
Pharmaceutical Innovators Patent filings on next-generation formulations, delivery Patent cliffs, biosimilar competition
Biosimilar Manufacturers Exploiting expired patents, innovating manufacturing methods Patent litigation, regulatory hurdles
Regulators Establishing clear pathways for biosimilars and biologics Variability across jurisdictions
Investors Potential for growth in biosimilar market segments Market saturation, patent disputes

Comparison with Other ATC Classes

Aspect H01AC (Somatropin) Related Classes (e.g., H01CA, H01CB)
Product Type Biologicals (peptides) Small molecules, antiseptics
Patent Complexity High due to biologic manufacturing processes Moderate, chemical synthesis patents
Market Maturity Mature with ongoing biosimilar entry Varies; some still emerging

FAQs

Q1: What are the primary drivers influencing innovation in the H01AC class?
Advances in recombinant DNA technology, delivery systems, and formulation stability are key drivers, alongside regulatory incentives to improve patient compliance.

Q2: How do patent expirations impact the somatropin market?
Expirations around 2022–2024 open opportunities for biosimilar entrants, intensifying competition but also encouraging innovation for new formulations.

Q3: What are the main strategic patent filings by originators?
Firms focus on composition of matter, improved formulations (long-acting), delivery devices, and manufacturing methods.

Q4: How are biosimilars affecting the competitive landscape?
Biosimilars, once approved, significantly reduce costs and increase access, eroding the market share of originators, prompting their innovation and patent strategies.

Q5: What regulatory policies influence patent strategies?
Regulatory pathways like FDA’s ANDA and EMA’s Biosimilar pathway impact timing of patent filings, extensions, and litigations, which are pivotal for market exclusivity.


Key Takeaways

  • The somatropin market is robust, with a CAGR of 6.5%, driven by growing demand and expanding indications.
  • Patent landscape analysis indicates a looming cliff post-2024, with many key patents set to expire, paving the way for biosimilar proliferation.
  • Innovators continue to file patents in formulation, delivery, and manufacturing, aiming to extend market exclusivity.
  • Strategic patent management, encompassing filings and litigations, remains critical amidst increasing biosimilar competition.
  • Regulatory environments and pricing policies globally will shape future market dynamics and patent strategies.

References

  1. MarketWatch. “Global Growth Hormone Market Size, Share & Trends Analysis Report.” 2022.
  2. Mordor Intelligence. “Growth Hormone Market Forecast 2023–2028.” 2023.
  3. IQVIA. “Global Growth Hormone Market Data.” 2022.
  4. Patent databases: USPTO, EPO, WIPO, featuring filings from Novo Nordisk, Pfizer, Sandoz.

By evaluating the current market trends alongside the evolving patent landscape, stakeholders can better navigate the complex terrain in the H01AC class, optimizing innovation, competitive positioning, and strategic investments.

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