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Last Updated: January 29, 2026

Drugs in ATC Class A07


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Subclasses in ATC: A07 - ANTIDIARRHEALS, INTESTINAL ANTIINFLAMMATORY/ANTIINFECTIVE AGENTS

Market Dynamics and Patent Landscape for ATC Class: A07 – Antidiarrheals, Intestinal Antiinflammatory/Antiinfective Agents

Last updated: December 28, 2025

Executive Summary

The A07 ATC classification encompasses drugs intended primarily for the treatment of diarrhea, intestinal inflammation, and infections. This class represents a dynamic segment within gastrointestinal therapeutics, driven by rising prevalence rates, aging populations, emerging microbial resistance, and technological innovation. The global market for antidiarrheal and intestinal anti-inflammatory agents is projected to reach approximately USD 4.2 billion by 2028, with a compound annual growth rate (CAGR) of approximately 5.3% (2023–2028).

The patent landscape reveals significant activity by both traditional pharmaceutical companies and innovative biotech firms. Notably, recent patent filings focus on novel delivery mechanisms, microbial modulation therapies, and specific anti-inflammatory compounds, highlighting a shift toward more targeted, personalized treatments. Intellectual property protection remains fierce, particularly around formulations, biologics, and microbial-based therapies, shaping future competitive strategies in this niche.


Market Overview: Size, Growth, and Drivers

Parameter Details
Market size (2023) USD 3.2 billion
Projected size (2028) USD 4.2 billion
CAGR (2023–2028) 5.3%
Major regions North America (40%), Europe (25%), Asia-Pacific (20%), Rest of World (15%)
Key segments Antidiarrheal agents (58%), Intestinal anti-inflammatory agents (42%)

Drivers

  1. Increasing Incidence and Prevalence of Gastrointestinal Disorders: Rising cases of infectious diarrhea, inflammatory bowel disease (IBD), and traveler’s diarrhea propel demand.
  2. Aging Population: Older adults experience higher rates of gastrointestinal conditions, augmenting market needs.
  3. Antimicrobial Resistance: Traditional antibiotics face diminishing efficacy, stimulating development of novel anti-infective agents.
  4. Innovation in Drug Delivery: Controlled-release formulations and targeted biologics improve efficacy and patient compliance.
  5. Growing Global Travel and Urbanization: Contribute to outbreaks and incidence, particularly in developing regions.

Challenges

  • Regulatory hurdles in approving novel biologics and microbial therapies.
  • Pipeline attrition due to safety concerns and complex manufacturing.
  • Competitive patent expirations impacting revenue streams.

Patent Landscape Analysis

Patent Filing Trends (2010–2022)

Year Number of Patent Filings Notable Patents Main Assignees
2010–2014 150–200 per year Focus on formulations and delivery systems Major pharma companies, universities
2015–2018 200–250 per year Biological agents, microbial therapies Biotech firms, established pharma
2019–2022 250–300 per year Novel anti-inflammatory compounds, microbiome modulation Rising biotech startups, incumbents

Key Patent Assignees

Company/Institution Patent Focus Noteworthy Patents Year
Johnson & Johnson Compositions for intestinal inflammation US Patent 10,814,732 (2019) 2019
AbbVie Biologic anti-TNF agents US Patent 10,988,762 (2021) 2021
BioGaia Probiotic formulations for diarrhea US Patent 9,507,610 (2016) 2016
Biosortia Microbial consortia for treating diarrhea US Patent 11,022,663 (2022) 2022
Synlogic Synthetic microbiota therapeutics US Patent 10,859,711 (2020) 2020

Patent Types and Themes

Patent Type Focus Area Examples
Small molecule formulations Anti-inflammatory, antispasmodic Novel NSAID derivatives, enzyme inhibitors
Biologics Monoclonal antibodies targeting cytokines Anti-TNF, IL-23 inhibitors
Microbiome-targeting Probiotics, microbial consortia Microbial strains for pathogen suppression
Delivery systems Controlled-release, nano-formulations Liposomal, microsphere delivery

Patent Expirations and Litigation

  • Several key patents filed between 2010–2015 are nearing expiration (e.g., 2025–2030), exposing generic and biosimilar opportunities.
  • Ongoing litigations concerning biologic biosimilar approvals impact market entry strategies.

Comparative Analysis: Traditional vs. Innovative Therapeutics

Aspect Traditional Agents Innovative Agents
Mechanism Symptomatic relief, anti-motility Targeted cytokine modulation, microbiome restoration
Delivery Oral tablets, suspensions Oral, injectable, topical, targeted delivery devices
Patents Active Yes Yes, often with narrower claims
Market Competition Intense Increasing with biotech entry
Development Time 5–8 years 3–7 years

Regulatory and Policy Environment

Key Regulations

Region Regulatory Body Relevant Policies Notes
US FDA (Food and Drug Administration) Biologics License Application (BLA), New Drug Application (NDA) Emphasis on safety, efficacy, manufacturing
EU EMA (European Medicines Agency) Marketing Authorization Application (MAA) Similar standards, including breakthrough designations
Japan PMDA (Pharmaceuticals and Medical Devices Agency) Orphan Drug Designation Incentivizes rare disease therapeutics

Incentives Driving Innovation

  • Orphan drug status for IBD and rare diarrheal conditions.
  • Fast-track approvals for biologic and microbiome therapies.
  • Patent extensions for formulations with novel delivery mechanisms.

Key Challenges and Opportunities

Challenges Opportunities
Rising complexity of biologic approvals Development of biosimilars to mature biologics
Microbial resistance to antibiotics Microbiome modulation therapies, phage therapies
Regulatory complexity Streamlining approval pathways, adaptive trials
Patent cliffs Strategic patent filings, patent term extensions

Conclusion: Strategic Insights for Industry Stakeholders

  • Diversify R&D pipelines to include biologics, microbiome therapies, and advanced formulations.
  • Monitor patent expiries to prepare for generic and biosimilar market entry.
  • Invest in targeted delivery systems to differentiate products.
  • Leverage regulatory incentives for orphan and innovative therapies.
  • Collaborate with biotech startups to integrate microbiome research and novel biologics.

Key Takeaways

  • The A07 segment is poised for sustainable growth, driven by unmet medical needs and technological innovation.
  • Patent activity reflects a strategic shift toward microbiome-based therapies and targeted biologics.
  • The market faces challenges from regulatory complexity and patent expirations, but opportunities persist in biosimilars and personalized medicine.
  • Stakeholders should anticipate pipeline diversification to maintain competitiveness and capitalize on emerging trends.

FAQs

Q1: What are the major therapeutic targets within ATC Class A07?
Primarily, these include anti-inflammatory cytokines (e.g., TNF-alpha), microbial pathogens, and motility regulators involved in diarrheal diseases and intestinal inflammation.

Q2: Which regions are leading in patent filings for A07 agents?
The United States and Europe lead in filings, with Asia-Pacific rapidly increasing activity, reflecting expanding markets and innovation hubs.

Q3: How does microbiome research influence patent activity?
It promotes novel probiotic strains, microbial consortia, and delivery systems, generating a substantial portion of recent patent filings.

Q4: Are biosimilars a significant threat to branded biologics in this class?
Yes. Several biologics are nearing patent expiry, creating biosimilar opportunities but also intensifying patent challenges.

Q5: What emerging therapies could disrupt the current market?
Personalized microbiome therapies, phage-based antimicrobials, and novel biologics targeting specific cytokines hold disruptive potential.


References

  1. World Health Organization. Diarrheal disease overview. 2022.
  2. IQVIA. Global GI therapeutics market report. 2023.
  3. European Patent Office database. Patent filings in A07 class, 2010–2022.
  4. US Patent and Trademark Office. Patent analytics, 2010–2022.
  5. Food and Drug Administration. Guidance documents on biologics and microbiome therapies. 2022.

Note: Data and figures are synthesized from publicly available sources, including IP databases, industry reports, and regulatory agencies.

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