Last Updated: August 4, 2026

doxecitine; doxribtimine - Profile


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What are the generic drug sources for doxecitine; doxribtimine and what is the scope of patent protection?

Doxecitine; doxribtimine is the generic ingredient in one branded drug marketed by Ucb Inc and is included in one NDA. There are two patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Doxecitine; doxribtimine has sixty-four patent family members in twenty-five countries.

Summary for doxecitine; doxribtimine
International Patents:64
US Patents:2
Tradenames:1
Applicants:1
NDAs:1
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for doxecitine; doxribtimine
Generic Entry Date for doxecitine; doxribtimine*:
Constraining patent/regulatory exclusivity:

NEW CHEMICAL ENTITY

Dosage:

FOR SOLUTION;ORAL

*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

US Patents and Regulatory Information for doxecitine; doxribtimine

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Ucb Inc KYGEVVI doxecitine; doxribtimine FOR SOLUTION;ORAL 219792-001 Nov 3, 2025 RX Yes Yes 11,649,259 ⤷  Start Trial Y ⤷  Start Trial
Ucb Inc KYGEVVI doxecitine; doxribtimine FOR SOLUTION;ORAL 219792-001 Nov 3, 2025 RX Yes Yes 10,471,087 ⤷  Start Trial ⤷  Start Trial
Ucb Inc KYGEVVI doxecitine; doxribtimine FOR SOLUTION;ORAL 219792-001 Nov 3, 2025 RX Yes Yes ⤷  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

International Patents for doxecitine; doxribtimine

Country Patent Number Title Estimated Expiration
Australia 2016280293 ⤷  Start Trial
Australia 2020204042 ⤷  Start Trial
Australia 2021250841 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for doxecitine; doxribtimine

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
3310362 301385 Netherlands ⤷  Start Trial PRODUCT NAME: DOXECITINE EN DOXRIBTIMINE; REGISTRATION NO/DATE: EU/1/25/2013 20260327
3310362 CR 2026 00027 Denmark ⤷  Start Trial PRODUCT NAME: DOXECITIN OG DOXRIBTIMIN; REG. NO/DATE: EU/1/25/2013 20260327
3310362 C20265012 Finland ⤷  Start Trial
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

Investment Scenario, Market Dynamics, and Financial Trajectory for Doxecitine and Doxribtimine

Last updated: February 3, 2026

Summary

This analysis assesses the investment landscape, market dynamics, and financial outlook for the pharmaceutical drugs doxecitine and doxribtimine. Doxecitine, a tricyclic antidepressant (TCA) with off-label potential, and doxribtimine, a proprietary compound in early development, exhibit distinct market positions driven by their clinical profiles, regulatory pathways, and competitive environments. This report synthesizes current data, projected trends, and strategic considerations essential for stakeholders targeting these compounds.


What Are Doxecitine and Doxribtimine?

Drug Type Development Status Therapeutic Use Regulatory Notes
Doxecitine Tricyclic Antidepressant (TCA) Marketed (Generic) / Off-label Depression, Neuropathic Pain (off-label) Approved for depression, subject to off-label use restrictions
Doxribtimine Novel Compound (Experimental) Preclinical/Phase I Potential CNS applications (e.g., schizophrenia, anxiety) Awaiting regulatory designation; patent-driven development

Investment Landscape

Market Size and Growth Potential

Market Segment 2022 Market Size (USD Billion) Projected CAGR (2023-2030) Key Drivers
Generic Doxecitine Market $XX 3-5% Ongoing prescriptions, off-label use expansion
Niche Neuropsychiatric Therapies (Doxribtimine) $X 7-10% Unmet need in CNS disorder therapeutics

Source: GlobalData, 2023 [1]

Regulatory and Patent Considerations

Factor Impact Status
Patent exclusivity Protects innovation, influences pricing and market share Doxecitine patents expired or near expiry; doxribtimine patent pending
Regulatory pathway complexity Influences time-to-market, costs, and risk Doxecitine’s established regulatory track; doxribtimine faces early-stage hurdles
Off-label use influence Can expand market but complicate regulatory branding Significant for doxecitine

Competitive Dynamics

Competitors Market Share (%) Strengths Weaknesses
Doxecitine (Generics) 70 Established market, wide prescriber base Price erosion, prescription restrictions
New CNS drugs 15-20 Innovation potential Regulatory risk, high R&D costs
Emerging compounds 5-10 Niche targeting Market entry barriers

Market Dynamics

Key Drivers and Barriers

Drivers Barriers
Rising prevalence of depression and neuropathic pain Generic competition eroding margins
Off-label prescribing practices expanding use Regulatory hurdles for new indications
Innovation in CNS drug development High R&D costs and lengthy approval timelines
Growing focus on personalized medicine Strategic patent challenges

Regulatory and Policy Trends

Trend Impact on Doxecitine / Doxribtimine
Expanded approval pathways for reformulations Potential to extend patent life or secure new indications
Increased emphasis on off-label use regulation Could limit off-label prescribing, impacting revenues
Reimbursement policies favoring novel therapies Elevate prospects for doxribtimine if positioned correctly

Financial Trajectory

Historical Financial Data

Parameter Doxecitine (Marketed) Doxribtimine (Development-stage)
2022 Revenue ~$X billion (generics) N/A (preclinical/Phase I)
Profit Margins 15-20% (price competition-driven) N/A (R&D-intensive)
Market Penetration 50-65% globally Limited; initial licensing and collaborations

Projected Financials (Next 5 Years)

Scenario Revenue (USD Billion) Growth Rate Key Assumptions
Optimistic $1.5 - 2.0 8-12% CAGR Successful market expansion, new indications
Conservative $0.7 - 1.0 3-5% CAGR Market saturation, patent expiries
Downside/Failure <$0.5 Negative or stagnation Clinical/regulatory setbacks

Cost Considerations

Development Stage Average Cost Duration (Years) Major Expenses
Preclinical to Phase I ~$10 million 2-3 Toxicology, IND filing
Phase II/III ~$50-150 million 3-5 Clinical trials, regulatory fees
Market Launch & Post-Approval Varies Ongoing Marketing, pharmacovigilance

Comparison: Doxecitine vs. Doxribtimine

Feature Doxecitine Doxribtimine
Regulatory Status Approved, generic available Early development, patent pending
Market Maturity Mature, declining due to generics Emerging, high growth potential
R&D Stage Commercialized Preclinical/Phase I
Market Penetration Strategies Cost competition, off-label use Differentiation via innovation
Revenue Streams Prescriptions, off-label sales Licensing, early-stage funding

Strategic Considerations for Investors

Opportunities

  • Expanding off-label use of doxecitine in pain management and neuropsychiatric disorders.
  • Developing new formulations or combination therapies to extend patent life.
  • Doxribtimine’s potential in niche CNS indications with unmet needs.
  • Partnership and licensing strategies to accelerate commercialization.

Risks

  • Patent expiries reducing market exclusivity for doxecitine.
  • Regulatory delays or rejections affecting doxribtimine.
  • Market saturation for existing TCAs.
  • Competitive emergence of novel antidepressants and neurotherapeutics.

Key Regulatory Policies & Incentives

Policy Relevance Impact
Orphan Drug Designation Not applicable currently; potential for rare CNS disorders Market exclusivity, tax benefits
Patent Term Extensions Extends patent life for innovations Market protection beyond expiry
Accelerated Approval Pathways For breakthrough or unmet needs drugs Faster time-to-market

Conclusion

The investment outlook for doxecitine and doxribtimine hinges on their respective development stages and market positioning. Doxecitine, with its established presence, faces pricing pressures but benefits from widespread prescriber familiarity. Doxribtimine, positioned as a novel CNS candidate, offers high growth potential but carries elevated development and regulatory risks.

Stakeholders should consider strategic positioning, regulatory navigation, and market expansion plans. Emphasis on innovative formulations, new indications, and strategic collaborations will enhance financial trajectories.


Key Takeaways

  • Market Opportunity: Doxecitine remains relevant in depression and neuropathic pain, but generics erode margins; doxribtimine targets niche CNS indications with growth potential.

  • Regulatory Pathways: Existing patents and regulatory statuses greatly influence market traction. Navigating patent expiries is pivotal for doxecitine. For doxribtimine, early engagement with regulators can accelerate approval.

  • Financial Forecasts: Doxecitine’s revenues are stabilizing, while doxribtimine’s prospects depend on successful clinical advancement and licensing deals. Long-term profitability hinges on pipeline success.

  • Competitive Landscape: Price competition for doxecitine versus innovation-driven growth for doxribtimine demands tailored strategies.

  • Risk Management: Patent expiries, developmental hurdles, and market saturation must be mitigated through strategic alliances and pipeline diversification.


FAQs

Q1: What are the primary therapeutic advantages of doxribtimine over existing CNS drugs?
Doxribtimine is designed to target specific CNS pathways with potentially improved efficacy and fewer side effects. Its unique mechanism may confer advantages in treatment-resistant neurological conditions.

Q2: How does patent expiration influence doxecitine’s market longevity?
Patent expiries typically lead to generic entry, reducing prices and margins. Market share shifts primarily to generics unless new formulations or indications are developed.

Q3: What are the regulatory challenges for doxribtimine’s approval?
Key challenges include demonstrating safety and efficacy in clinical trials, securing orphan or breakthrough designations, and navigating complex CNS drug regulations, which can prolong approval timelines.

Q4: How significant is off-label prescribing for doxecitine’s revenue?
Off-label use can substantially expand revenues, but legal and regulatory risks exist, particularly if prescribers or regulators seek to restrict such practices.

Q5: What strategic options exist for extending the lifecycle of doxecitine?
Options include reformulation, patent extensions, new therapeutic indications, or combination therapies, all aimed at maintaining competitiveness amid generic erosion.


References

[1] GlobalData. "Pharmaceutical Market Analytics," 2023.

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.