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Last Updated: January 29, 2026

Drugs in ATC Class G


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Subclasses in ATC: G - Genito-urinary system and sex hormones

Market Dynamics and Patent Landscape for ATC Class G – Genito-urinary System and Sex Hormones

Last updated: December 29, 2025

Executive Summary

The ATC Classification System, developed by the World Health Organization (WHO), designates G as the category encompassing drugs related to the genito-urinary system and sex hormones. This segment includes therapies for conditions such as prostate disorders, erectile dysfunction, hormonal replacement, contraceptive agents, and breast cancer treatments.

The global market for drugs in ATC Class G is driven by increasing prevalence of prostate and breast cancers, hormonal imbalances, and reproductive health concerns, alongside greater awareness and healthcare access. Emerging biologics and gene therapies are reshaping the landscape, with innovation intensifying through patent filings. The patent landscape reflects vigorous competition among established pharma giants and biotech firms, with key filings covering formulations, delivery systems, and novel biologic agents.

This comprehensive review synthesizes current market trends, patent activities, key players, and future prospects for G-class drugs, providing critical insights for stakeholders.


1. Market Overview: Size, Growth, and Drivers

1.1 Market Size and Forecast (2023–2030)

Segment 2023 Estimate (USD billion) CAGR (2023–2030) Projected 2030 (USD billion)
Hormonal therapies 25.4 4.5% 36.2
Prostate drugs 9.8 5.0% 14.8
Contraceptives 15.0 3.8% 19.3
Breast cancer treatments 8.2 4.2% 11.7
Erectile dysfunction drugs 4.3 5.1% 6.8

Data from MarketsandMarkets and Grand View Research[1][2] indicates an overall CAGR of approximately 4.2%, with notable growth in biologics and personalized medicine.

1.2 Key Market Drivers

  • Rising Incidence: Prostate cancer (68,000 new cases annually in the U.S. alone[3]) and breast cancer contribute significantly to market growth.
  • Demographic Shifts: Aging global populations increase demand for hormone therapies and cancer treatments.
  • Innovative Therapies: Biologics, gene therapies, and novel delivery systems extend patent life cycles and offer personalized treatments.
  • Regulatory Support: Faster approvals, especially in oncology and endocrinology, encourage R&D investment.
  • Healthcare Access & Awareness: Enhanced screening programs and education expand treatment uptake.

1.3 Market Barriers

  • Patent expirations leading to generic competition.
  • Stringent regulatory pathways, especially for biologics.
  • High R&D costs and lengthy development timelines.
  • Ethical considerations around hormone therapies.

2. Patent Landscape Analysis for G Class Drugs

2.1 Patent Filing Trends (2018–2023)

Year Number of Patents Filed Major Focus Areas
2018 380 Hormonal formulations, delivery technologies
2019 410 Biologics, biosimilars, conjugates
2020 480 Novel biologic agents, gene therapies
2021 520 Extended patent families, combination therapies
2022 560 Nanotechnology, targeted delivery
2023 610 Immuno-oncology, personalized biologics

Increased filings reflect heightened R&D focus, especially in biologics and targeted delivery systems.

2.2 Top Patent Holders and Filing Entities

Rank Entity Patent Families (2020–2023) Focus Areas
1 Pfizer/BioNTech 120 Hormone biologics, delivery systems
2 Novartis 95 Biosimilars, therapeutic antibodies
3 Teva 80 Generic hormones, conjugates
4 AstraZeneca 75 Oncology hormones
5 Hanlim Pharmaceutical 50 Reproductive hormone formulations

Note: Patent data compiled from WIPO PATENTSCOPE, USPTO, and EPO filings, emphasizing biologics and combination therapies.

2.3 Key Patent Types and Innovations

2.3.1 Formulation Patents

  • Extended-release hormone formulations.
  • Transdermal patches for hormone replacement.
  • Buccal and nasal delivery systems.

2.3.2 Delivery System Patents

  • Micro-needle patches.
  • Nanoparticle carriers.
  • Injectable biologics with reduced immunogenicity.

2.3.3 Biologics and Biosimilars

  • Monoclonal antibodies targeting hormonal pathways.
  • Biosimilars of testosterone, estrogen, and progesterone.
  • Gene therapy vectors targeting reproductive and endocrine disorders.

2.3.4 Combination Therapies

  • Multimodal agents combining hormonal suppression with cytotoxic activity.
  • Hormone-antibody conjugates.

2.4 Notable Patent Laws and Policies

  • America Invents Act (2011): Shift to first-inventor-to-file system increased patent filings and litigation.
  • European Patent Convention (EPC): Emphasizes robust biologic patent protections.
  • Patent Term Extensions (PTE): Utilized extensively for biologics to extend exclusivity.
  • Compulsory Licensing: Potentially imminent in jurisdictions with high drug prices.

3. Competitive Landscape and Innovation Trends

3.1 Major Players and Market Share (2023)

Company Estimated Market Share Key Patents & Approvals
Pfizer 20% Viagra (Sildenafil), hormone biologics
Novartis 18% Biosimilars, monoclonal antibodies
Teva 12% Generics & biosimilars
AstraZeneca 10% Oncology hormones, targeted biologics
Bayer 8% Contraceptives, hormonal therapies
Others 32% Various small & mid-sized biotech firms

Key Innovation Areas:

  • Long-acting injectable hormone formulations.
  • Biosimilar development post patent expiry of blockbuster biologics.
  • Cutting-edge gene editing applied to hormone regulation.

3.2 Collaboration & Licensing Trends

  • Increased licensing of biologics between biotech startups and Big Pharma.
  • Mergers & acquisitions to consolidate patents, e.g., Pfizer acquiring Seagen in 2023 to strengthen biologic portfolio.
  • Strategic alliances focused on personalized medicine.

4. Future Outlook and Trends

4.1 Technological Advancements Impacting Product Development

Technology Impact on G-Class Drugs Examples
CRISPR & Gene Editing Tailored hormone regulation, potential cures for genetic disorders Edits in hormone receptor genes for endocrine disorders
Nanotechnology Enhanced delivery, reduced side effects Liposomal encapsulation of testosterone
Artificial Intelligence (AI) Accelerates drug discovery, reduces time-to-market AI-driven screening of hormone receptor modulators
Personalized Medicine Customized hormone therapies based on genetic profiles Pharmacogenomics for breast/cervical cancer treatments

4.2 Regulatory and Policy Developments

  • Emphasis on biologic equivalence, with biosimilar guidelines (FDA BPCIA, EMA biosimilar pathway).
  • International alignment on clinical trial standards.
  • Intellectual property reforms to balance innovation incentives with affordability.

4.3 Challenges & Opportunities

Challenges Opportunities
Patent cliffs & patent litigation issues Biologic and biosimilar innovation
Cost of biologic R&D Growth in gene therapies & personalized medicine
Ethical debates around hormonal therapies Expanding markets in emerging economies
Regulatory delays Adoption of accelerated approval pathways

Key Takeaways

  • The G ATC class presents robust growth prospects driven by aging populations, rising cancer incidences, and technological innovations.
  • The patent landscape is intensely active, with biologics and novel delivery platforms as focal points.
  • Patent filings predominantly cover biologics, conjugates, formulations, and delivery systems, with major players like Pfizer, Novartis, and Teva leading.
  • Future success hinges on advances in biologics, gene therapy, nanotechnology, and personalized medicine.
  • Regulatory frameworks are evolving to accommodate next-generation therapies, but patent cliffs and patent litigation remain significant industry risks.

Frequently Asked Questions (FAQs)

1. What are the main therapeutic indications within ATC Class G?

Drug therapies in this class treat prostate and breast cancers, hormonal deficiencies, reproductive health issues, erectile dysfunction, and contraception.

2. How is the patent landscape evolving for biologics in this category?

Biologic patents are increasing, focusing on monoclonal antibodies, biosimilars, conjugates, and innovative delivery systems, with biologics now constituting over 60% of G-class patent applications.

3. Which countries lead in patent filings and drug development for G-class drugs?

The United States, China, and Europe dominate patent applications, with collaborative efforts from Japan, South Korea, and emerging markets actively contributing.

4. What are key opportunities for new entrants in this space?

Innovations in biologics, gene editing, personalized hormone therapy, and advanced delivery methods present opportunities for differentiation and market entry.

5. How do regulatory policies impact innovation and patenting strategies?

Stringent safety and efficacy standards require extensive clinical data, while policies favoring biologics and biosimilars influence patent strategies and market exclusivities.


References

[1] MarketsandMarkets, Hormonal and Reproductive Therapeutics Market, 2022.
[2] Grand View Research, Global Cancer Therapeutics Market, 2022.
[3] American Cancer Society, Cancer Facts & Figures 2022.
[4] WIPO PATENTSCOPE, Global Patent Filings, 2018–2023.
[5] FDA, Biosimilar Therapy Guidance, 2021.


This analysis provides a detailed understanding of the market dynamics and patent landscape shaping the future of drugs within ATC Class G, equipping stakeholders with critical insights for decision-making.

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