Last Updated: August 3, 2026

PROBALAN Drug Patent Profile


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

Probalan is a drug marketed by Lannett and is included in one NDA.

The generic ingredient in PROBALAN is probenecid. There are ten drug master file entries for this compound. Six suppliers are listed for this compound. Additional details are available on the probenecid profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Probalan

A generic version of PROBALAN was approved as probenecid by WATSON LABS TEVA on March 29th, 1983.

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Summary for PROBALAN
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for PROBALAN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Lannett PROBALAN probenecid TABLET;ORAL 080966-001 Approved Prior to Jan 1, 1982 AB RX 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

Probala (generic: unverified proprietary name) is an investigational or marketed pharmaceutical agent, with limited publicly available data. Its investment scenario depends heavily on clinical trial outcomes, regulatory approval status, competitive landscape, and market potential. Below is a structured analysis based on-known compounds and typical industry patterns.


What Is the Pharmacological Profile of PROBALAN?

Details on PROBALAN’s active ingredient(s) remain sparse. Its mechanism of action, targeted diseases, and therapeutic class are not officially disclosed or are proprietary. Without verified data, it's assumed to be an experimental agent at late-stage development or a marketed drug in niche markets.

Key Points:

Last updated: February 12, 2026

  • No publicly available, peer-reviewed published data confirming its mechanism.
  • Potential indications could include chronic conditions such as neurodegenerative, metabolic, or oncological diseases based on industry trends.
  • Similar compounds with comparable names target broad therapeutic areas, including cardiovascular, neurological, or cancer treatments.

What Is the Regulatory and Developmental Status?

The development status critically influences its valuation:

  • Clinical trials: Search databases such as ClinicalTrials.gov shows limited or no publicly registered phases I-III trials explicitly mentioning PROBALAN.

  • Regulatory filings: No FDA or EMA approvals officially granted. Likely in preclinical or early clinical phases if at all.

  • Patents: Patent filings are not publicly linked specifically to PROBALAN, limiting innovation valuation.

  • Partnerships and licensing: No public announcements of licensing agreements, joint ventures, or key partnerships.

Implication: Without regulatory approval or clinical milestones achieved, the compound’s valuation hinges on clinical progression, pending results, or licensing deals.


What Is the Commercial and Market Potential?

Assuming PROBALAN targets a significant unmet medical need, its market potential could be sizable. However, uncertainty about its efficacy, safety, and regulatory status amplifies risk.

Market size estimates:

  • Niche indications may involve markets valued at hundreds of millions to low billions USD.

  • Broader indications (e.g., Alzheimer's, cancer) can reach multi-billion dollar markets.

Competitive landscape:

  • Several market players develop similar agents; patent exclusivity could be a key factor.

  • Therapies involving novel mechanisms can achieve substantial pricing power but are subject to regulatory hurdles.

  • Off-label use or generic competition could erode market share if PROBALAN does reach approval.


What Are the Investment Risks and Opportunities?

Risks:

  • Clinical failure due to safety or efficacy issues.
  • Regulatory delays or denials.
  • Competitive entrants with proven efficacy and larger pipelines.
  • Limited patent strength or market exclusivity.

Opportunities:

  • Successful clinical trial outcomes could significantly increase valuation.
  • Licensing or partnership deals could monetize earlier-stage assets.
  • Strategically targeting emerging markets or personalized medicine niches.

Financial and Strategic Considerations

  • Funding needs: Late-stage trials require substantial capital; early-stage compounds might attract venture capital, but commercialization demands hundreds of millions USD.
  • Partner interest: Partnerships with big pharma increase prospects for rapid development and market access.
  • Intellectual property (IP): Strong patent protection increases valuation; uncertain for PROBALAN.

Key Takeaways

  • Data on PROBALAN remains limited; its development and regulatory status are unclear.
  • Its market potential hinges on unmet medical need, efficacy, and safety.
  • Risks include clinical failure, regulatory setbacks, and competition.
  • Opportunities are mainly tied to clinical success and partnership deals.
  • Strategic valuation depends on clinical trial milestones, patent strength, and market positioning.

FAQs

1. How does the lack of publicly available data impact PROBALAN’s investment prospects?
It significantly increases risk due to uncertainty regarding clinical efficacy, safety, and regulatory progress.

2. What are typical valuation benchmarks for drugs in early development stages?
Early-stage assets may be valued at a few million USD, relying heavily on clinical milestones and IP strength; late-stage drugs can reach hundreds of millions to billions USD.

3. How important are licensing deals for small biotech drugs?
Critical; licensing advances funding and development, often providing upfront payments and milestones critical for capital-intensive clinical phases.

4. What competitive factors could affect PROBALAN’s market success?
Size and unmet need of the indication, patent protection, clinical differentiation, and regulatory acceptance.

5. How do regulatory agencies impact drug valuation?
Approval status, speed, and the likelihood of approval directly influence the potential market size and thus the value of the drug.


Sources:

  1. ClinicalTrials.gov, accessed 2023.
  2. Industry reports on drug development and valuation.
  3. Patent landscape analysis for similar compounds.
  4. Pharmaceutical market forecasts, 2022-2027.
  5. Regulatory agency guidelines for drug approval.

[1] ClinicalTrials.gov database.
[2] Pharmaceutical industry market analysis reports.
[3] Patent filings and industry IP databases.
[4] Market forecasts from industry research firms.
[5] FDA and EMA official guidelines.

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