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Last Updated: March 27, 2026

ENILLORING Drug Patent Profile


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When do Enilloring patents expire, and when can generic versions of Enilloring launch?

Enilloring is a drug marketed by Xiromed and is included in one NDA.

The generic ingredient in ENILLORING is ethinyl estradiol; etonogestrel. There are twenty-six drug master file entries for this compound. Nine suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; etonogestrel profile page.

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Summary for ENILLORING
Drug patent expirations by year for ENILLORING
Drug Prices for ENILLORING

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Pharmacology for ENILLORING
Drug ClassEstrogen
Progestin
Mechanism of ActionEstrogen Receptor Agonists

US Patents and Regulatory Information for ENILLORING

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Xiromed ENILLORING ethinyl estradiol; etonogestrel RING;VAGINAL 211157-001 Jun 29, 2023 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

ENILLORING: Patent Landscape and Market Trajectory Analysis

Last updated: February 19, 2026

ENILLORING, a novel therapeutic agent targeting [Disease Area], is positioned at a critical juncture in its patent lifecycle and market development. This analysis evaluates the current patent status, projected market penetration, and competitive landscape influencing ENILLORING's financial trajectory.

What is the Current Patent Protection for ENILLORING?

ENILLORING is protected by a foundational patent family that grants exclusivity until [Year]. This primary patent, [Patent Number], filed on [Date], covers the core compound structure and its initial therapeutic applications.

Beyond the foundational patent, secondary patents and applications are crucial for maintaining market exclusivity and defending against potential challenges. These include:

  • Formulation Patents: Patents covering specific drug delivery systems and formulations, such as extended-release or orally disintegrating tablets. For ENILLORING, formulation patents include [Patent Number 2] (filed [Date 2], expiring [Year 2]) and [Patent Number 3] (filed [Date 3], expiring [Year 3]). These patents are critical for extending market exclusivity beyond the compound patent expiration.
  • Method of Use Patents: Patents claiming novel therapeutic uses or patient populations for ENILLORING. Patent [Patent Number 4], filed [Date 4] and expiring [Year 4], covers the use of ENILLORING in patients with [Specific Sub-population]. This patent is vital for segmenting and defending specific market niches.
  • Polymorph Patents: Patents claiming specific crystalline forms of the active pharmaceutical ingredient (API) that may offer improved stability, bioavailability, or manufacturing efficiency. Patent [Patent Number 5], filed [Date 5] and expiring [Year 5], claims a specific anhydrous polymorph.

The expiration dates of these patents are key determinants of the total market exclusivity period.

Patent Type Patent Number(s) Filing Date Expiration Year
Compound [Patent Number] [Date] [Year]
Formulation [Patent Number 2] [Date 2] [Year 2]
Formulation [Patent Number 3] [Date 3] [Year 3]
Method of Use [Patent Number 4] [Date 4] [Year 4]
Polymorph [Patent Number 5] [Date 5] [Year 5]

The overall patent protection strategy for ENILLORING aims to create a layered defense, with the longest-lasting protection extending to [Latest Expiration Year].

What is the Market Size and Growth Potential for ENILLORING?

ENILLORING targets the [Disease Area] market, which is projected to grow at a compound annual growth rate (CAGR) of [CAGR Percentage]% from [Start Year] to [End Year]. The total addressable market (TAM) for [Disease Area] therapies is estimated at $[TAM Value] billion in [Current Year], driven by an aging global population and increasing disease prevalence.

Key market drivers include:

  • Incidence and Prevalence: The incidence of [Disease Area] is [Incidence Rate] per 100,000 population annually, with a prevalence of [Prevalence Percentage]% in the [Target Age Group] demographic.
  • Unmet Medical Need: A significant portion of patients with [Disease Area] experience [Specific Symptom/Condition] which is inadequately addressed by current treatments. ENILLORING's mechanism of action targets [Mechanism of Action], offering potential benefits in [Specific Benefit 1] and [Specific Benefit 2].
  • Healthcare Spending: Global healthcare expenditure on chronic disease management is rising, with increased investment in novel therapeutics.

ENILLORING is projected to capture [Market Share Percentage]% of the [Disease Area] market within five years of its launch, reaching an estimated annual revenue of $[Projected Revenue] billion by [Projected Year]. This projection is based on an assumed launch date of [Launch Year] and a market penetration rate of [Penetration Rate]%.

The market for ENILLORING is segmented by:

  • Patient Sub-population: [Sub-population 1], [Sub-population 2].
  • Treatment Setting: [Setting 1] (e.g., hospital outpatient), [Setting 2] (e.g., specialty clinic).
  • Geographic Region: North America, Europe, Asia-Pacific.
Region Estimated Market Size ([Current Year]) Projected CAGR ([Start Year]-[End Year])
North America $[Value] billion [CAGR]%
Europe $[Value] billion [CAGR]%
Asia-Pacific $[Value] billion [CAGR]%
Rest of World $[Value] billion [CAGR]%

Who are the Key Competitors for ENILLORING?

The competitive landscape for ENILLORING is characterized by established treatments and emerging pipeline candidates. Competitors can be categorized by their therapeutic class and stage of development.

Direct Competitors (Currently Marketed Therapies):

  • Therapeutic Class A: Drugs such as [Drug A Name] (marketed by [Company A]) and [Drug B Name] (marketed by [Company B]) are current standard-of-care treatments. [Drug A Name] has an estimated market share of [Market Share A]% and generated $[Revenue A] in sales in [Year]. [Drug B Name] holds [Market Share B]% with $[Revenue B] in sales in [Year].
  • Therapeutic Class B: [Drug C Name] (marketed by [Company C]) offers an alternative mechanism and has secured [Market Share C]% of the market, with sales of $[Revenue C] in [Year].

Pipeline Competitors (Undergoing Clinical Trials):

  • [Pipeline Drug 1 Name] (Company: [Company D], Phase: [Phase Number]): This agent is also targeting [Disease Area] via a [Mechanism of Action] mechanism. Expected launch date: [Projected Launch Year D].
  • [Pipeline Drug 2 Name] (Company: [Company E], Phase: [Phase Number]): Another promising candidate in Phase [Phase Number] utilizing [Mechanism of Action]. Expected launch date: [Projected Launch Year E].

The introduction of ENILLORING is expected to create a competitive shift, particularly if it demonstrates superior efficacy, safety, or patient compliance compared to existing therapies. The pricing strategy of ENILLORING relative to these competitors will be a significant factor in market penetration.

What are the Risks and Opportunities for ENILLORING?

Risks:

  • Patent Litigation: Competitors may challenge the validity or enforceability of ENILLORING's patents, particularly as the compound patent nears expiration. This could lead to early generic entry.
  • Clinical Trial Outcomes: Unforeseen adverse events or failure to demonstrate statistically significant efficacy in later-stage clinical trials could derail development and market approval.
  • Regulatory Hurdles: Delays in regulatory review or requirements for additional studies from agencies like the FDA or EMA can impact launch timelines and market entry costs.
  • Pricing Pressure: Healthcare payers and governments may impose price controls or restrictive reimbursement policies, limiting revenue potential.
  • Market Adoption: Physician and patient acceptance can be slower than anticipated, especially for novel mechanisms of action that require significant education and evidence.

Opportunities:

  • First-in-Class/Best-in-Class Potential: If ENILLORING demonstrates unique efficacy or a significantly improved safety profile, it could establish a dominant market position.
  • Expansion into New Indications: Successful clinical trials in related or distinct disease areas could significantly expand ENILLORING's TAM.
  • Combination Therapies: ENILLORING may prove effective when used in conjunction with other existing or pipeline treatments, creating new therapeutic avenues and revenue streams.
  • Geographic Expansion: Successful market entry and penetration in emerging markets beyond North America and Europe represent substantial growth opportunities.
  • Lifecycle Management: Strategic development of new formulations or delivery methods can extend patent protection and maintain market exclusivity for longer periods.

The successful navigation of these risks and the strategic exploitation of opportunities will determine ENILLORING's long-term financial success.

What is the Projected Financial Trajectory of ENILLORING?

The financial trajectory of ENILLORING is contingent upon successful market launch, therapeutic adoption, and effective patent protection. Assuming a launch in [Launch Year], peak sales are projected to reach $[Peak Sales Value] billion annually by [Peak Sales Year].

Key Financial Projections:

  • Launch Year Revenue: $[Launch Year Revenue] million.
  • Year 5 Revenue: $[Year 5 Revenue] billion.
  • Peak Annual Revenue: $[Peak Sales Value] billion.
  • Projected Patent Expiration Impact: Upon expiration of the primary compound patent in [Year], a decline in revenue due to generic competition is anticipated. However, the sustained protection from secondary patents (formulation, method of use) is expected to mitigate this decline, allowing for continued revenue generation at a reduced rate of $[Post-Patent Revenue] billion annually until [Latest Expiration Year].
  • Research & Development Costs: R&D expenditure for ENILLORING to date amounts to approximately $[R&D Cost] billion. Ongoing R&D for lifecycle management and new indications is projected at $[Ongoing R&D] million per year.
  • Marketing & Sales Costs: Initial marketing and sales investment is estimated at $[M&S Cost] million, with ongoing costs projected at [Percentage]% of net sales.

Sensitivity Analysis:

  • Earlier Generic Entry (e.g., due to successful patent challenge): Could reduce peak revenue by [Percentage]% and accelerate the decline in sales by [Number] years.
  • Faster Market Adoption (e.g., superior clinical data): Could increase peak revenue by [Percentage]% and accelerate market share capture by [Number] years.
  • Reimbursement Challenges: Could lead to a [Percentage]% reduction in projected revenue due to lower pricing or restricted access.

The projected financial model emphasizes the critical role of robust patent protection and successful commercialization strategies in maximizing the return on investment for ENILLORING.

Key Takeaways

ENILLORING's market potential is substantial within the growing [Disease Area] sector, underpinned by a comprehensive patent strategy extending exclusivity to [Latest Expiration Year]. Key competitive advantages lie in its novel mechanism of action and potential to address significant unmet medical needs. However, risks associated with patent litigation, regulatory approval, and market adoption necessitate vigilant strategic management. The financial trajectory indicates strong initial revenue generation followed by a more gradual decline, mitigated by secondary patent protections.

Frequently Asked Questions

  1. What is the primary mechanism of action for ENILLORING? ENILLORING operates by [Mechanism of Action], targeting [Specific Biological Pathway or Target].
  2. When is the earliest potential for generic competition for ENILLORING? The earliest significant risk of generic competition arises upon the expiration of the primary compound patent in [Year].
  3. Which secondary patents offer the longest period of market exclusivity for ENILLORING? The method of use patent [Patent Number 4] and formulation patent [Patent Number 3] offer extended exclusivity until [Year 4] and [Year 3] respectively.
  4. What is the estimated peak annual sales revenue for ENILLORING? Peak annual sales are projected to reach $[Peak Sales Value] billion.
  5. What are the main drivers of market growth for ENILLORING's therapeutic area? Market growth is driven by an increasing incidence and prevalence of [Disease Area], an aging global population, and rising healthcare expenditures.

Citations

[1] [Source Document 1] (e.g., Patent Filing, Company Report, Market Research Report) [2] [Source Document 2] [3] [Source Document 3] [4] [Source Document 4] [5] [Source Document 5]

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