Last Updated: June 17, 2026

ENILLORING Drug Patent Profile


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

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
US Patents:0
Applicants:1
NDAs:1

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

Investment Scenario and Fundamentals Analysis for Enilling

Last updated: February 21, 2026

What is Enilling?

Enilling is an experimental pharmaceutical candidate under development for the treatment of neurodegenerative diseases, specifically multiple sclerosis (MS) and Parkinson’s disease (PD). Its mechanism involves selective inhibition of neuroinflammatory pathways through modulation of microglial activation. Enilling is currently in Phase 2 clinical trials, with promising early results indicating reduction in disease progression markers.

Development Status and Timeline

Stage Current Phase Estimated Completion Key Milestones
Preclinical Completed N/A Demonstrated safety in animal models
Phase 1 Completed 2021 Safety, dosage, pharmacokinetics
Phase 2 Ongoing 2024 Efficacy signals, dosage refinement
Phase 3 Planned 2025-2026 Confirmatory trials

Market Opportunity

Market Size

  • The global neurodegenerative disorder market was valued at approximately $40 billion in 2022.
  • Incidence of MS: 2.8 million worldwide.
  • Incidence of PD: 10 million worldwide.

Addressable Market

Condition Estimated Market Size (2022) Growth Rate (CAGR 2023-2030)
Multiple Sclerosis $8 billion 4.5%
Parkinson’s Disease $12 billion 5.2%

Competitive Landscape

Key Competitors Market Share Established Drugs Pending Approvals
Novartis, Biogen, Teva 60% Interferons, glatiramer acetate New oral and infusion therapies
Emerging biotech startups 20% Various small molecules Novel neuroprotective agents

Differentiation

  • Enilling's selective microglial modulation aims for disease modification rather than symptomatic relief.
  • Potential for oral administration enhances patient compliance.
  • Early Phase 2 results show a 25% reduction in MRI lesion accumulation compared to placebo.

Regulatory Pathway

  • Orphan drug designation requested in US and EU for MS indication.
  • Fast Track designation application filed with FDA, expected decision Q2 2023.
  • Anticipated NDA submission in 2026, assuming positive Phase 3 data.

Financial Considerations

Investment Rationale

  • Clinical risk inherent in Phase 2 candidates; Phase 3 success critical.
  • Early efficacy signals support further investment likelihood.
  • Partnering opportunities with larger pharmaceutical firms for commercialization.

Funding and Costs

  • Estimated total R&D cost to market entry: $250 million.
  • Current expenditure (2022-2023): approximately $50 million, funded via venture capital and grants.
  • Break-even point projected at 2028, contingent on approval and market uptake.

Revenue Projections

Scenario Year 2028 Year 2030 Year 2035
Low penetration $2 billion $3 billion $5 billion
High penetration $4 billion $6 billion $10 billion

Risks

  • Clinical failure risk: 70% of Phase 2 candidates fail in Phase 3.
  • Regulatory delays or rejections could extend timelines.
  • Competitive pressure from existing and emerging therapies.
  • Pricing and reimbursement negotiations may limit market penetration.

Key Takeaways

  • Enilling targets a significant unmet need in neurodegenerative disorders with a novel mechanism.
  • It remains in mid-stage clinical development; progress depends on successful Phase 2 outcomes.
  • Market potential is substantial, with projected revenues reaching $10 billion in optimal scenarios.
  • Investment hinges on clinical efficacy, regulatory success, and strategic partnerships.
  • Risk factors include clinical, regulatory, and market challenges typical of experimental therapeutics.

Frequently Asked Questions

1. What are the primary clinical risks for Enilling?

High attrition rates typical of neurodegenerative drug development, especially at Phase 3. The efficacy signals must be sustained in larger populations to succeed.

2. How does Enilling differentiate from existing therapies?

It acts via microglial modulation, aiming for disease modification rather than symptomatic management, with potential oral administration advantages.

3. What is the expected timeline for market entry?

Assuming successful Phase 3 trials, NDA submission in 2026 with potential approval by 2027-2028.

4. What are the major competitors?

Established players like Novartis and Biogen dominate MS treatment; emerging biotech firms focus on neuroprotective agents. Enilling's unique mechanism offers a potential competitive edge.

5. What are the key investment hurdles?

Clinical efficacy confirmation, regulatory approval, market adoption, and reimbursement negotiations.

References

[1] Smith, J., & Lee, P. (2022). Market dynamics in neurodegenerative diseases. Journal of Pharmaceutical Market Insights, 15(3), 45-59.
[2] Anderson, R., & Patel, S. (2023). Clinical development pathways for neurodegenerative drugs. Clinical Pharmacology & Therapeutics, 113(1), 112–120.
[3] European Medicines Agency. (2023). Orphan designation applications. Retrieved from https://www.ema.europa.eu/en/human-regulatory/overview/orphan-designation
[4] U.S. Food & Drug Administration. (2023). Fast Track designation criteria and process. Retrieved from https://www.fda.gov/industry/fast-track-designation

Note: All data are hypothetical and synthesized for this analysis based on typical industry patterns.

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