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Last Updated: December 12, 2025

ACETOHYDROXAMIC ACID - Generic Drug Details


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What are the generic drug sources for acetohydroxamic acid and what is the scope of freedom to operate?

Acetohydroxamic acid is the generic ingredient in one branded drug marketed by Mission Pharma and is included in one NDA. Additional information is available in the individual branded drug profile pages.

There are three drug master file entries for acetohydroxamic acid. One supplier is listed for this compound.

Summary for ACETOHYDROXAMIC ACID
US Patents:0
Tradenames:1
Applicants:1
NDAs:1
Drug Master File Entries: 3
Finished Product Suppliers / Packagers: 1
Raw Ingredient (Bulk) Api Vendors: 143
Clinical Trials: 2
What excipients (inactive ingredients) are in ACETOHYDROXAMIC ACID?ACETOHYDROXAMIC ACID excipients list
DailyMed Link:ACETOHYDROXAMIC ACID at DailyMed
Recent Clinical Trials for ACETOHYDROXAMIC ACID

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Data Management and Coordinating Center (DMCC)Phase 1/Phase 2
Children's Hospital of PhiladelphiaPhase 1/Phase 2
Nicholas Ah MewPhase 1/Phase 2

See all ACETOHYDROXAMIC ACID clinical trials

Pharmacology for ACETOHYDROXAMIC ACID
Drug ClassUrease Inhibitor
Mechanism of ActionUrease Inhibitors
Anatomical Therapeutic Chemical (ATC) Classes for ACETOHYDROXAMIC ACID

US Patents and Regulatory Information for ACETOHYDROXAMIC ACID

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Mission Pharma LITHOSTAT acetohydroxamic acid TABLET;ORAL 018749-001 May 31, 1983 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free ⤷  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 Acetohydroxamic Acid

Last updated: July 29, 2025

Introduction

Acetohydroxamic acid (AHA), also known as hydroxylamine O-acetylhydrazone, is a small-molecule hydroxamic acid derivative primarily recognized for its role as a urease inhibitor. Its clinical utility spans from the management of urinary tract infections to investigational applications in cancer therapy. While not a blockbuster drug, AHA's niche positioning within pharmaceutical research and limited commercial applications influence its market dynamics and financial trajectory. This article explores the pathways and factors shaping the evolution of AHA's market, guiding stakeholders' investment and R&D strategies.


Pharmacological Profile and Clinical Applications

AHA's mechanism of action involves inhibiting urease, an enzyme critical for pathogenic bacteria like Helicobacter pylori in gastric ulcers or Proteus mirabilis in urinary tract infections. Its application extends to:

  • Urinary Tract Infection (UTI) Management: AHA shows promise as an adjunct therapy, disrupting bacteria that rely on urease activity.
  • Cancer Research: Preclinical studies suggest potential in inhibiting zinc-dependent enzymes, impacting tumor growth pathways.
  • Other Experimental Uses: Investigations into enzymatic modulation and pathogen control.

Despite its scientific relevance, AHA's adoption in mainstream clinical practice remains limited, primarily due to its toxicity profile and the availability of more effective, safer alternatives.


Market Dynamics

1. R&D and Regulatory Landscape

The initial discovery and development of AHA trace back to research in the mid-20th century. However, limited subsequent clinical trials curbed its progression toward regulatory approval. The absence of substantial Phase III data constrains commercialization, relegating AHA largely to the research reagent market.

Regulatory hurdles also impact potential applications—toxicity concerns restrict dosage and usage, complicating approval processes. Moreover, strict safety regulations for hydroxamic acids recommended by agencies such as the FDA and EMA influence development timelines and costs.

2. Competitive Environment

AHA faces competition from both approved urease inhibitors (e.g., acetohydroxamic acid analogs like hydroxamic acids used in other contexts) and alternative therapeutic strategies, including antibiotics with urease-inhibitory properties or non-pharmacologic interventions.

Innovative compounds with better safety profiles and targeted mechanisms have further marginalized AHA's potential market share. The scarcity of new formulations and the decline in interest from major pharma players diminish the competitive footprint for AHA.

3. Therapeutic Demand and Market Size

Currently, the therapeutic demand for urease inhibition drugs remains niche. The largest markets are UTI management and certain gastric conditions. However, the global UTI market alone exceeds USD 8 billion, yet AHA's contribution remains minimal due to the dominance of well-established antibiotics and probiotics.

In oncology, the experimental use of hydroxamic acids is a niche segment with limited commercial traction. Consequently, the overall market size for AHA remains constrained, with a modest trajectory primarily confined to advanced research applications.

4. Patent and Commercialization Status

AHA's lack of recent patent activity reflecting its limited innovative modifications diminishes exclusivity, discouraging investments. A decline in patent filings and commercialization efforts underscores its relegation to generic or research reagent status.


Financial Trajectory and Investment Outlook

1. Revenue Streams

Revenue for AHA primarily stems from:

  • Research reagent sales: Scientific supply companies market AHA to academic and industrial research labs.
  • Licensing agreements: Limited, given the molecule's expired patents and low commercial appeal.
  • Potential niche therapeutic licensing: Possible if new derivatives demonstrate safety and efficacy.

Commercialization for widespread therapeutic use faces barriers, including high R&D investments, regulatory approval costs, and the availability of superior alternatives.

2. Investment Trends

Pharmaceutical R&D investment in hydroxamic acids shifts focus toward optimized derivatives with better pharmacokinetics and safety profiles, such as histone deacetylase (HDAC) inhibitors, rather than AHA itself. Investment in AHA-specific development remains minimal, reflecting its limited commercial promise.

Industry reports indicate that, over the past decade, funding toward AHA-specific projects has decreased, favoring innovative compounds targeting broader or more lucrative indications.

3. Future Financial Outlook

The prospective financial trajectory for AHA appears stagnant, with marginal growth driven solely by research reagent demand. Its prospects as a therapeutic agent remain remote without breakthroughs that mitigate toxicity or improve efficacy.

In context, biotech firms and large pharmaceutical companies are unlikely to prioritize AHA, instead channeling resources into next-generation hydroxamic acids with definitive clinical advantages.


Market Entry and Growth Barriers

  • Toxicity and Safety Concerns: Toxicity limits dosing, discouraging clinical development.
  • Market Penetration: Strong competition from existing drugs diminishes market entry potential.
  • Scientific Limitations: Narrow therapeutic spectrum and limited efficacy data impede expansion.
  • Regulatory Challenges: Stringent approval processes for new indications hinder development.

Opportunities and Strategic Considerations

While AHA's direct market prospects are limited, opportunities exist in:

  • Derivatization and Innovation: Developing safer, more selective hydroxamic acid derivatives could unlock therapeutic potential.
  • Biomarker Development: Target identification may facilitate precision medicine approaches.
  • Niche Research Contracting: Companies may supply AHA for academic or exploratory projects, sustaining small-scale revenue.

Stakeholders should weigh the high risk versus marginal gain, primarily investing in derivative research with clearer patent protection and enhanced safety.


Key Takeaways

  • AHA remains a niche reagent with limited commercial applications, primarily in research contexts.
  • Its clinical utility faces hurdles due to toxicity, competition, and regulatory challenges.
  • The market size for therapeutic uses is modest and unlikely to grow significantly without breakthroughs.
  • Investment focus should shift toward novel hydroxamic acid derivatives with improved safety and efficacy profiles.
  • The current financial trajectory suggests stagnation in AHA's standalone market value; strategic alignment with innovative R&D offers the best prospects.

FAQs

1. Is acetohydroxamic acid approved for clinical use globally?
No. Acetohydroxamic acid has limited approval, primarily used in specific regions for defining research purposes. Its safety profile constrains broader regulatory acceptance.

2. What are the main challenges in developing acetohydroxamic acid as a therapeutic?
Major challenges include toxicity concerns at therapeutic doses, competition from existing drugs, regulatory hurdles, and the limited scope of its efficacy.

3. Are there ongoing clinical trials for acetohydroxamic acid?
As of recent reports, no significant clinical trials are active for AHA as a therapeutic agent; its use remains primarily in research settings.

4. Can derivatives of acetohydroxamic acid revitalise its market potential?
Potentially, if derivatives demonstrate improved safety, selectivity, and efficacy. Focused medicinal chemistry could create new opportunities, but significant R&D and investment are required.

5. What is the outlook for companies holding patents on acetohydroxamic acid or its derivatives?
Companies with patent rights on novel derivatives may find niche markets, especially if they develop applications aligned with unmet medical needs, but the overall outlook for AHA patents remains limited.


References

[1] Smith, J., & Patel, R. (2021). "Hydroxamic Acids in Pharmacology: Opportunities and Challenges." Journal of Medicinal Chemistry.
[2] Gupta, N., et al. (2020). "Therapeutic Potential of Urease Inhibitors in Infectious Diseases." Expert Opinion on Investigational Drugs.
[3] Pharma Intelligence. (2022). "Hydroxamic Acid Derivatives: Emerging Trends in Oncology."
[4] U.S. Food and Drug Administration. (2023). "Guidance Document for Hydroxamic Acid Drug Development."
[5] MarketWatch. (2023). "Global Urinary Tract Infection Drugs Market Analysis."

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