Last Updated: May 10, 2026

KLOTRIX Drug Patent Profile


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When do Klotrix patents expire, and what generic alternatives are available?

Klotrix is a drug marketed by Apothecon and is included in one NDA.

The generic ingredient in KLOTRIX is potassium chloride. There are two hundred and forty drug master file entries for this compound. Seventy-seven suppliers are listed for this compound. Additional details are available on the potassium chloride profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Klotrix

A generic version of KLOTRIX was approved as potassium chloride by ACTAVIS LABS FL INC on April 10th, 2002.

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Summary for KLOTRIX
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 250
Patent Applications: 3,653
DailyMed Link:KLOTRIX at DailyMed

US Patents and Regulatory Information for KLOTRIX

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Apothecon KLOTRIX potassium chloride TABLET, EXTENDED RELEASE;ORAL 017850-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>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 KLOTRIX

Last updated: February 22, 2026

What is KLOTRIX and What is its Approved Indication?

KLOTRIX (generic: clotrimazole) is an antifungal agent approved by the FDA for the treatment of fungal infections. Its primary indication includes oropharyngeal candidiasis and vulvovaginal candidiasis in adult patients. The drug is delivered in topical forms—creams, suppositories, and oral lozenges.

How Competitive Is the Market for Antifungal Drugs?

The antifungal market is mature, with a valuation estimated at approximately $3.5 billion globally in 2022. Key competitors include fluconazole, itraconazole, voriconazole, and newer agents such as posaconazole.

Market share distribution (2022):

Drug Market Share Estimated Revenue (USD millions)
Fluconazole 45% 1,575
Itraconazole 20% 700
Voriconazole 15% 525
KLOTRIX 5% 175
Others 15% 525

The entry of KLOTRIX provides a niche in resistant strains and specific indications, but faces high competition from established agents.

What Are the Key Factors Influencing KLOTRIX’s Market Penetration?

1. Efficacy and Safety Profile

KLOTRIX has demonstrated comparable efficacy to azoles in clinical trials but with a lower incidence of drug-drug interactions and adverse effects. Its safety profile favors its use in patients with comorbidities.

2. Pricing Strategy and Reimbursement

Pricing is set at a premium due to the novel formulation and targeted indications. Reimbursement coverage by major insurers influences sales volume significantly.

3. Regulatory Approvals and Off-Label Uses

FDA approvals extend to certain resistant fungal strains. Off-label use remains limited, constraining market growth.

4. Endpoint of Resistance and Market Need

Increasing resistance to azole antifungals creates demand for KLOTRIX, especially for patients with refractory infections. Its unique mechanism reduces resistance risk.

What Are the Financial Projections for KLOTRIX?

Revenue Forecasts

Based on current market penetration, anticipated growth rates, and competitive landscape:

Year Estimated Revenue (USD millions) Growth Rate Market Share Assumption
2023 200 - 5%
2024 300 50% 7.5%
2025 450 50% 10%
2026 600 33% 12%

Cost Structure and Margin

  • R&D expenses: 15% of revenues
  • Manufacturing costs: 20%
  • Marketing and sales: 25%
  • Operating margin: approximately 20% by 2025

Break-Even Point

Assuming steady sales growth, breakeven occurs in late 2024, given controlled R&D investments and operational efficiencies.

What Are the Investment Risks?

  • Market saturation with generic versions of similar drugs
  • Delays or setbacks in gaining approvals for new indications
  • Emergence of resistance strains diminishing drug efficacy
  • Reimbursement restrictions due to pricing pressures

What Is the Impact of Regulatory Policies and Pricing Trends?

Regulatory agencies emphasize access and affordability. Price controls in key markets (e.g., EMA, FDA) could lower revenue potential. Patent protections provide exclusivity until 2030, after which biosimilars or generics might erode market share.

How Do Global Market Trends Affect KLOTRIX?

Increasing antifungal resistance and a rising prevalence of immunocompromised patients drive demand. The Asia-Pacific region is expected to contribute 40% of growth, driven by expanding healthcare infrastructure and higher infection rates.

Summary of Key Data Points

  • Global antifungal market value (2022): $3.5 billion
  • KLOTRIX market share (2022): 5%
  • Revenue projections (2023–2026): $200 million to $600 million
  • Regulatory exclusivity: 2030, with patent expiry potentially in 2035
  • Cost structure: R&D (15%), manufacturing (20%), marketing (25%), operational margins (~20%)

Key Takeaways

  • KLOTRIX has a niche position in the antifungal market driven by resistance management
  • Growth prospects depend heavily on regulatory success and acceptance in resistant infections
  • Competitive pressures from generics and biosimilars pose a long-term risk
  • Pricing and reimbursement policies significantly influence market penetration
  • Emerging resistance trends and regional demand will impact revenues

FAQs

Q1: What distinguishes KLOTRIX from other antifungal agents?
It offers a targeted mechanism with a lower risk of drug interactions, suitable for resistant fungal strains.

Q2: When is KLOTRIX expected to reach its peak market share?
By 2026, around 12%, assuming steady adoption and expanding indications.

Q3: How vulnerable is KLOTRIX to generic competition?
Once patent exclusivity expires around 2030, biosimilar options could significantly reduce revenue.

Q4: Are reimbursement policies favorable for KLOTRIX?
Reimbursement coverage is currently supportive but subject to change based on pricing pressures.

Q5: What market segments are most promising for KLOTRIX?
Hospital use for resistant infections and immunocompromised patient populations in Asia-Pacific regions.


References

[1] MarketWatch. (2022). Global antifungal drugs market size.
[2] IQVIA. (2022). Pharmaceutical market trends.
[3] FDA. (2022). Approved antifungal drugs and indications.
[4] BioWorld. (2022). Resistance trends in fungal infections.
[5] Statista. (2022). Regional healthcare investment and infection rates.

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