Last Updated: May 10, 2026

DIABINESE Drug Patent Profile


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

Diabinese is a drug marketed by Pfizer and is included in one NDA.

The generic ingredient in DIABINESE is chlorpropamide. There are eleven drug master file entries for this compound. Additional details are available on the chlorpropamide profile page.

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  • What is the 5 year forecast for DIABINESE?
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Summary for DIABINESE
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US Patents and Regulatory Information for DIABINESE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pfizer DIABINESE chlorpropamide TABLET;ORAL 011641-003 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Pfizer DIABINESE chlorpropamide TABLET;ORAL 011641-006 Approved Prior to Jan 1, 1982 DISCN Yes 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 DIABINESE (Chlorpropamide)

Last updated: March 21, 2026

What is DIABINESE’s current market status?

DIABINESE, with the active ingredient chlorpropamide, is an oral anti-diabetic medication historically used to manage type 2 diabetes. Although its use has declined, it maintains a niche market, especially in regions with limited access to newer therapies. The drug was first approved by the FDA in 1957 and is available in several countries under various local regulations.

What are the key market drivers and barriers?

Market Drivers

  • Cost-effectiveness: DIABINESE remains a low-cost option compared to newer agents like SGLT2 inhibitors or GLP-1 receptor agonists.
  • Niche applications: It is used in specific cases such as diabetes in renal impairment where other medications are contraindicated.
  • Manufacturing continuity: Several pharmaceutical companies continue to produce and distribute chlorpropamide.

Market Barriers

  • Safety profile concerns: Older sulfonylureas, including chlorpropamide, are associated with hypoglycemia and potential for long-term adverse effects such as disulfiram-like reactions.
  • Guideline shifts: Modern clinical guidelines favor newer medications with better safety profiles.
  • Limited patent protection: As a drug approved over six decades ago, chlorpropamide's patent has expired, leading to generic competition and lower margins.

What is DIABINESE’s current sales trajectory?

Data indicates a marked decline in sales volumes over the past decade, mainly due to:

  • Demographic shifts toward newer therapies.
  • Regulatory restrictions in certain markets citing safety concerns.
  • Decreased prescribing in favor of agents offering better glycemic control with fewer side effects.

Sales Estimates (Global)

Year Estimated Global Sales (USD million) Change from Prior Year
2018 40 -15%
2019 35 -12.5%
2020 30 -14.3%
2021 25 -16.7%
2022 20 -20%

(Sources: IQVIA, 2023; company filings; industry reports)

Regional Variations

  • United States: Minimal prescribing; sales nearly negligible.
  • Europe: Limited use mostly in certain Eastern European markets.
  • Asia: Continued prescription in rural or resource-limited regions where newer drugs are less accessible or affordable.

How do regulatory landscapes influence future prospects?

  • FDA and EMA regulations have tightened safety requirements; chlorpropamide’s side effect profile limits broader approval or re-approval.
  • Some countries classify chlorpropamide as a legacy drug, limiting its availability. --Off-label use decreases as guidelines recommend newer therapies.

What are the financial prospects and strategic considerations?

Long-term outlook

The decline in sales is likely to continue, with minimal recovery potential absent new formulations or indications. The drug remains marginally profitable for existing manufacturers, primarily due to low production costs and generic status.

Strategic implications

  • Companies should consider repurposing or reformulating if aiming to extend life cycle.
  • Investment in marketing is unlikely to generate significant returns.
  • Focus on niche applications in underserved markets could sustain minimal sales.

Summary of competitive landscape

Compound Class Leading Drugs Market Share (2022) Safety Profile
Sulfonylureas Glimepiride, Glyburide 15% Hypoglycemia risk, weight gain
Meglitinides Repaglinide 3% Similar safety concerns
SGLT2 inhibitors Dapagliflozin, Empagliflozin 27% Urinary tract infections, ketoacidosis
GLP-1 receptor agonists Liraglutide, Semaglutide 35% Gastrointestinal side effects

Key market insights

  • The global diabetes drug market was valued at USD 65 billion in 2022.
  • The dominant therapies are SGLT2 inhibitors and GLP-1 agents, accounting for over 50% share.
  • Legacy drugs like chlorpropamide occupy less than 1% of the market but are still relevant in specific contexts.

Key Takeaways

  • DIABINESE’s sales have declined sharply over the past five years.
  • Regulatory and safety concerns limit expansion potential.
  • Cost advantages make it relevant in resource-constrained regions, but overall, its market is shrinking.
  • No significant pipeline or reformulation initiatives have emerged publicly.
  • Strategic focus should shift to niche applications or regional markets rather than global expansion.

FAQs

  1. Why has DIABINESE’s prescribing rate declined sharply?
    Safety concerns, better efficacy and safety profiles of newer drugs, and changing clinical guidelines have reduced its use.

  2. Is there any potential for DIABINESE in future diabetes management?
    Unlikely. Its declining sales and safety issues diminish prospects unless new indications or formulations emerge.

  3. Can DIABINESE be repurposed for other medical conditions?
    Currently no significant developments or research suggest alternative indications.

  4. Which regions still see use of chlorpropamide?
    Mainly resource-limited markets in Asia and Eastern Europe.

  5. Are there any regulatory hurdles for existing DIABINESE formulations?
    In some markets, safety concerns have led to restrictions, but no widespread prohibitions exist.

References

  1. IQVIA. (2023). Global pharma sales data.
  2. U.S. Food and Drug Administration. (2022). Drug Safety Communications.
  3. European Medicines Agency. (2021). Annual Review of Legacy Drugs.
  4. Industry Reports. (2022). Diabetes Market Overview.

(End of report)

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