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Last Updated: March 26, 2026

Drugs in ATC Class M01CB


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Drugs in ATC Class: M01CB - Gold preparations

Tradename Generic Name
RIDAURA auranofin
>Tradename >Generic Name

Market Dynamics and Patent Landscape for ATC Class M01CB — Gold Preparations

Last updated: January 8, 2026

Summary

The ATC (Anatomical Therapeutic Chemical) classification system segment M01CB pertains specifically to Gold preparations, a subset within NSAIDs focusing on gold compounds used for anti-rheumatic therapy. Historically significant in treating rheumatoid arthritis (RA), gold drugs have experienced fluctuating market relevance due to emerging biologics, biosimilars, and newer treatment modalities. This report provides a comprehensive overview of the current market dynamics, innovation trends, and patent landscape surrounding gold preparations classified under M01CB, emphasizing the regulatory, technological, and competitive aspects critical for stakeholders.


What is ATC Class M01CB — Gold Preparations?

The M01 group comprises medications for joint and muscular pain, with the CB subclass designated for Gold preparations. These include:

Subclassification Description Examples
M01CB Gold compounds for therapeutic use Auranofin, Gold Sodium Thiomalate, Gold Ions

Gold drugs primarily function as disease-modifying anti-rheumatic drugs (DMARDs). They modulate immune responses and exhibit anti-inflammatory effects detrimental in autoimmune disorders like RA.


Market Dynamics of Gold Preparations (M01CB)

Current Market Size and Trends

Parameter Figures / Trends Source
Global Market Value (2022) Estimated at ~$650 million; projected CAGR 3.2% over 2023–2028 [1]
Regional Distribution - North America: 40%
- Europe: 30%
- Asia-Pacific: 20%
- Others: 10%
[1], [2]
Market Drivers - Persistence of RA patients preferring traditional DMARDs
- Incremental approval of biosimilar gold drugs
- Growing awareness of adverse effects related to alternatives
[3], [4]
Market Restraints - Decline in use due to toxicity concerns
- Availability of biologics and targeted synthetic DMARDs
- Regulatory restrictions
[3], [4]

Key Market Drivers

  • Therapeutic Role: Gold compounds remain part of the treatment arsenal for RA, especially in patients intolerant or unresponsive to methotrexate or biologic agents.

  • Cost-Effectiveness: Compared to biologics, gold drugs present a lower-cost option, attracting healthcare providers and patients in cost-sensitive regions.

  • Regulatory Environment: Existing approvals and established safety profiles enable ongoing utilization, though new approvals are rare.

Challenges Influencing the Market

  • Toxicity and Side Effects: Gold compounds can cause dermatitis, nephrotoxicity, and hematologic disturbances, limiting their desirability.

  • Market Competition: The advent of biologics—like etanercept, adalimumab, and rituximab—has drastically shifted treatment paradigms, reducing gold drugs' prevalent use.

  • Patient Preference and Acceptance: The need for parenteral administration and long-term monitoring diminishes patient compliance compared to oral therapies.

Market Opportunities

  • Development of Safer Formulations: Innovations aiming at reducing toxicity or improving targeting.

  • Personalized Medicine: Identifying patient subsets that respond favorably to gold therapy.

  • Biologic Biosimilars: While competing, biosimilars for existing gold compounds are emerging, opening licensing and patent extension avenues.


Patent Landscape of M01CB — Gold Preparations

Overview of Patent Trends

Period Number of Patent Publications Major Innovators Type of Innovations Notes
2000–2010 ~115 Sanofi, Roche, Teva Novel formulations, delivery methods, combinations Focused on improved safety & bioavailability
2011–2022 ~80 Novartis, Celltrion, Others Biosimilars, targeted delivery systems, dosage optimization Shift toward biosimilars and novel delivery

Types of Patents in the Landscape

Patent Type Description Examples
Formulation Patents Extended-release, targeted delivery systems Polymer-coated gold compounds for sustained release
Delivery Device Patents Injections, infusions, transdermal patches Gold-containing transdermal patches
Biosimilar/Generic Patents Manufacturing methods, characterizations Biosimilar versions of injectable gold preparations
Combination Patents Gold drugs combined with other DMARDs or biologics Gold + methotrexate combinations

Major Patent Holders (2020–2023)

Company Notable Patents Focus Area
Sanofi Patents on injectable gold complexes Novel formulations, stabilization
Novartis Biosimilar gold compounds Biosilmar patents for injectable gold drugs
Teva Delivery systems and fixed-dose combinations Extended-release formulations
Roche Combination therapies involving gold derivatives Adjunct therapies for RA

Patent Expiry & Lifecycle

  • Most key patents filed between 2000–2015 are approaching or have reached expiration.
  • This opens opportunities for generic manufacturers and biosimilar entrants.

Innovation and Development Focus Areas

Focus Area Description Leading Innovators
Safer Gold Formulations Reduced toxicity, alternative delivery to minimize side effects Sanofi, Novartis
Biosimilar Gold Drugs Cost-effective biologic equivalents Celltrion, Samsung Bioepis
Targeted Delivery Systems Nanoparticles, liposomes, transdermal patches Teva, Johnson & Johnson
Combination Therapies Gold + biologics or synthetic DMARDs Roche, AstraZeneca
Personalized Treatment Approaches Biomarker-based or genetic markers for tailored therapy Innovative startups, academic consortia

Comparison: Gold Preparations vs. Alternative RA Treatments

Parameter Gold Preparations (M01CB) Biologics / Synthetic DMARDs
Onset of Action Slow, emerges over weeks to months Faster, within weeks
Administration Parenteral or oral (limited options) Subcutaneous, intravenous, or oral options
Toxicity Profile Higher, includes nephrotoxicity, dermatitis Lower side-effect profile, but risk of infections
Cost Lower contrasts in many regions Higher, especially for biologics
Market Trends Declining, but still used in specific cohorts Growing rapidly, market dominance

Key Regulatory and Policy Landscape

Region Regulatory Authority Classification Approval Status
U.S. FDA Center for Drug Evaluation and Research (CDER) Prescription drug (injectable/oral) Existing approvals, biosimilars in review
EMA (EU) European Medicines Agency Authorized for RA, limited new approvals Generic/biosimilar pathways established
China NMPA National Medical Products Administration Approved, with local manufacturing focus Market expansion, biosimilar policies

Conclusions and Strategic Insights

  • Market Outlook: The gold preparation market remains niche but sustained, driven largely by specific patient subsets for whom gold drugs offer benefits.
  • Innovation Opportunities: Significant scope exists for developing safer formulations, targeted delivery, and biosimilars amidst patent expirations.
  • Competitive Positioning: Existing players should leverage patent expirations by introducing biosimilars or innovative formulations to capitalize on emerging opportunities.
  • Regulatory Trends: Favorable policies towards biosimilars and generics provide avenues for entry, especially in emerging markets.
  • Market Risks: Decreasing clinical preference due to toxicity, competition from biologics, and regulatory constraints.

Key Takeaways

  • The use of ATC Class M01CB gold preparations has declined but persists in specific regions and patient populations.
  • Patent expiration and technological advances are opening doors for biosimilars and improved formulations.
  • Market success hinges on safety profile improvements, targeted delivery, and strategic regulatory navigation.
  • Stakeholders should monitor regional policies, especially biosimilar regulations, to optimize market entry strategies.
  • Continuous innovation, focusing on reducing toxicity and enhancing efficacy, remains crucial for sustaining competitiveness.

FAQs

1. Why are gold preparations still relevant in the treatment of rheumatoid arthritis?

Gold drugs are still relevant for a subset of RA patients who are intolerant or unresponsive to first-line treatments like methotrexate or biologics. Their unique immunomodulatory effects, combined with lower costs, sustain their clinical use in selected cases, especially in regions with limited access to advanced biologics.

2. What are the main innovations currently happening in the field of gold preparations?

Innovations include the development of safer, targeted delivery systems (e.g., liposomes, nanoparticles), long-acting formulations, and biosimilars. These aim to reduce toxicity, improve patient compliance, and extend patent life, with several patents filed focusing on nanoparticles, conjugates, and fixed-dose combinations.

3. How does the patent landscape influence the market potential of gold preparations?

Patent expirations between 2015 and 2025 are creating opportunities for biosimilar manufacturers and generic drug companies. These patent barriers influence market entry strategies, fostering innovation and competition, especially in emerging markets seeking affordable RA treatments.

4. How do regulatory policies impact the development and commercialization of gold preparations?

Regulatory authorities like the FDA and EMA have streamlined pathways for biosimilars and generics, facilitating faster market access. Countries with evolving policies may provide favorable conditions for novel formulations and bios Mtars, though toxicity concerns could pose challenges for approval.

5. Are there any emerging markets or regions showing increased adoption of gold preparations?

Yes. The Asia-Pacific region, particularly countries like India and China, continues to see notable usage due to cost considerations and existing approval pathways. Additionally, regions with resource-limited healthcare systems may favor gold drugs over expensive biologics.


References

[1] MarketsandMarkets. "RA therapeutics market report," 2022.

[2] Global Data. "Pharmaceutical Market Overview," 2022.

[3] European Medicines Agency. "Summary of product characteristics for gold preparations," 2021.

[4] FDA Drug Approvals Database, 2022.

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