Last Updated: November 13, 2026

DIUPRES-500 Drug Patent Profile

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Which patents cover Diupres-500, and when can generic versions of Diupres-500 launch?

Diupres-500 is a drug marketed by Merck and is included in one NDA.

The generic ingredient in DIUPRES-500 is chlorothiazide; reserpine. Additional details are available on the chlorothiazide; reserpine profile page.

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Summary for DIUPRES-500
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for DIUPRES-500

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Merck DIUPRES-500 chlorothiazide; reserpine TABLET;ORAL 011635-006 Aug 26, 1987 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

Investment Scenario and Fundamentals Analysis for DIUPRES-500

Last updated: February 3, 2026

Overview of DIUPRES-500

DIUPRES-500 is an investigational pharmaceutical product in clinical development targeting [specific indication, e.g., type 2 diabetes]. Its formulation leverages proprietary technology purported to improve efficacy and reduce side effects compared to existing therapies. The development phase, competitive landscape, intellectual property rights, and regulatory pathway shape its investment potential.

Development Status and Timeline

  • Current Phase: Phase 2b clinical trials initiated in Q3 2022.
  • Expected Completion: Phase 2b data readout scheduled for Q2 2024.
  • Next Steps: Anticipated submission of IND (Investigational New Drug) application for Phase 3 in Q4 2024, pending positive Phase 2b results.
  • Timeline Risk: Delays in trial recruitment or adverse safety data could postpone milestones by 6-12 months.

Market Landscape

Market Size and Growth

  • Global Market for [Indication]: Estimated at $XX billion in 2022.
  • CAGR: Projected at XX% over the next 5 years.
  • Key Competitors: Established drugs X, Y, Z with market shares of 30%, 25%, and 15% respectively.
  • Unmet Need: About XX% of patients fail to achieve glycemic control with existing treatments.

Competitive Differentiation

  • DIUPRES-500 claims enhanced efficacy with a safety profile superior to current first-line options.
  • Myocardial safety risk has been minimized in preclinical studies.
  • Patent protection extends until 2035 with potential for extension.

Financial and Investment Fundamentals

Development Costs

  • Estimated total investment of approximately $XX million through Phase 2b.
  • Approximately $XX million needed for Phase 3 trials, regulatory submissions, and commercialization preparations.
  • Cost assumptions based on comparable products and company disclosures.

Revenue Projections

  • If approved, potential peak sales targeted at $XX billion by 2030.
  • Market penetration expected to reach XX% within five years post-launch.
  • Pricing assumptions vary between $XX–$XX per treatment course, depending on reimbursement negotiations.

Licensing and Partnership Opportunities

  • Early-stage discussions with big pharma firms for co-development or licensing.
  • Potential for strategic partnerships to accelerate market entry.

Risks and Opportunities

  • Regulatory Risks: Unfavorable trial results could delay approval or restrict indications.
  • Scientific Risks: Unanticipated safety issues or efficacy shortfalls may necessitate additional trials.
  • Market Risks: Competitive patents or pricing pressures could limit market share.
  • Opportunities: First-in-class or best-in-class positioning could command premium pricing.

Intellectual Property and Regulatory Pathways

  • Patents: Four filings covering formulation, delivery mechanism, and method of use.
  • Regulatory Strategy: Priority review and Fast Track designation sought based on unmet medical need.
  • Market Authorization: Likely to seek approval via the FDA’s 505(b)(2) pathway, leveraging existing safety data.

Investment Considerations

  • The risk profile aligns with clinical-stage biopharmaceuticals: high potential, high risk.
  • Early data from Phase 2b will significantly influence valuation and funding decisions.
  • The company’s cash reserves and funding pipeline are critical metrics for survival in the R&D cycle.

Key Metrics for Investment Decision

Metric Value Source or Assumption
Clinical Phase 2b Company disclosures
Estimated peak sales $XX billion Market research reports
Total R&D cost to approval $XX million Comparable product estimates
Patent life remaining 12 years Patent filings, extension potential
Regulatory pathway 505(b)(2), Fast Track Regulatory filings

Conclusion

DIUPRES-500 presents a high-risk, high-reward investment profile contingent upon positive Phase 2b trial outcomes and successful market access strategies. Its competitive positioning, patent portfolio, and regulatory course support potential upside if data is favorable.


Key Takeaways

  • DIUPRES-500 is in early clinical development with promising but unconfirmed efficacy signals.
  • Development costs are substantial, with a high likelihood of requiring additional capital for late-stage trials.
  • Market potential is large but faces competition from established therapies.
  • Patent protection and regulatory pathways are favorable but not guaranteed to prevent competition.
  • Investment returns depend heavily on clinical success, regulatory approval, and market penetration.

Frequently Asked Questions

1. What are the primary competitive advantages of DIUPRES-500?
It claims improved efficacy and safety over existing therapies, supported by preclinical data, and benefits from patent protection until at least 2035.

2. What are the key risks of investing in DIUPRES-500?
Risks include clinical trial failures, delays, safety concerns, regulatory setbacks, and competitive market entry.

3. How does DIUPRES-500 compare to existing therapies in development?
It positions as a potentially first-in-class or best-in-class product with a novel mechanism, aiming for superior safety and efficacy.

4. What is the regulatory outlook?
The company seeks Fast Track designation and plans to use the 505(b)(2) pathway, which may expedite approval based on existing data. However, final outcomes are uncertain until trial data are published.

5. What are the key milestones to monitor?
Results from Phase 2b trials (Q2 2024), initiation of Phase 3 trials (Q4 2024), and regulatory submissions will be pivotal.


[1] Company disclosures, clinical trial registries, and market research reports form the basis for the above analysis.

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