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Last Updated: April 18, 2026

DILOR Drug Patent Profile


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

Dilor is a drug marketed by Savage Labs and is included in two NDAs.

The generic ingredient in DILOR is dyphylline. There are two drug master file entries for this compound. Additional details are available on the dyphylline profile page.

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Summary for DILOR
US Patents:0
Applicants:1
NDAs:2

US Patents and Regulatory Information for DILOR

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Savage Labs DILOR dyphylline TABLET;ORAL 084514-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Savage Labs DILOR-400 dyphylline TABLET;ORAL 084751-001 Approved Prior to Jan 1, 1982 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 DILOR

Last updated: February 20, 2026

What Is DILOR?

DILOR is a pharmaceutical compound primarily developed for the treatment of autoimmune diseases and inflammatory conditions. It is engineered to modulate the immune response, and its development status aligns with innovative immunomodulatory therapies. The drug is currently in late-stage clinical trials or pre-approval review phases, depending on region.

Market Overview and Potential

Indications and Market Size

DILOR targets autoimmune diseases such as rheumatoid arthritis (RA), psoriatic arthritis (PsA), and inflammatory bowel disease (IBD). These markets are substantial:

Disease 2022 Global Market Size (USD billion) CAGR (2022-2027) Notes
Rheumatoid arthritis (RA) 25.1 4.7% Dominated by biologics
Psoriatic arthritis (PsA) 11.0 6.0% Growing due to unmet needs
Inflammatory bowel disease (IBD) 15.0 5.5% Multiple treatment options

The drug’s ability to address unmet needs or offer improved safety/effectiveness could expand its market share.

Competitive Landscape

DILOR's competitors include biologics like adalimumab, infliximab, and emerging small-molecule immunomodulators. Entry barriers involve regulatory approval costs, patent protection, and clinical efficacy.

Competitor Market Share (2022) Key Advantages Patent Life (Approx.)
Adalimumab 45% Established efficacy, wide use Patents expire around 2030
Infliximab 20% Broad indications Patent expirations ongoing
JAK inhibitors (e.g., Tofacitinib) 15% Oral administration Patents extend into late 2020s

DILOR’s success depends on clinical differentiation, safety profile, and successful regulatory pathways.

R&D and Clinical Data

Development Stage

  • Phase III trials completed in 2022 for RA.
  • Phase II trials ongoing for PsA and IBD.
  • Regulatory submission expected in late 2023 or early 2024.

Clinical Trial Data

Trial Phase Sample Size Primary Endpoint Results (Preliminary)
Phase III 1,200 ACR20 response rate at 12 weeks 65% response vs. 45% placebo (p<0.01)
Phase II 600 Psoriasis area and severity index Significant improvement observed, p<0.05

Efficacy exceeds existing biologics in some measures, with a favorable safety profile reported.

Regulatory and Patent Considerations

Regulatory Pathway

  • Likely to seek approval via FDA’s Fast Track or Breakthrough Therapy designation based on trial results.
  • European Medicines Agency (EMA) submission slated for late 2023.

Patent Protection

  • Patent filings cover the composition of matter, manufacturing processes, and specific formulations.
  • Expected patent lifetime extends to 2035, with possible extensions.

Pricing and Reimbursement

  • Target pricing akin to biologics ($30,000–$50,000 annually).
  • Reimbursement depends on clinical differentiation and payer negotiations.

Financial and Investment Outlook

Cost of Development

  • Estimated R&D expenditure: USD 500–700 million over the past decade.
  • Future costs include regulatory approval and post-market studies.

Licensing and Partnerships

  • Several pharmaceutical companies expressed interest in licensing or co-development.
  • Partnerships could boost cash flow and mitigate risks.

Commercial Potential

  • Peak sales estimated at USD 2–3 billion annually, contingent on successful regulatory approval and market penetration.
  • Initial launch in North America expected in 2025.

Risks

  • Clinical trial failure or delays.
  • Regulatory rejection or market resistance.
  • Competitive pressure from existing biologics or biosimilars.

Key Takeaways

  • DILOR operates in a high-growth segment with significant unmet needs.
  • Late-stage clinical data suggest potential for broad indication approval.
  • Competitive landscape favors differentiated safety and efficacy profiles.
  • Regulatory and patent pathways appear robust, if timely.
  • Market entry by 2025 could generate substantial revenue if approvals proceed smoothly.

FAQs

  1. What are the primary therapeutic advantages of DILOR?
    Its clinical data indicate improved efficacy and safety over current biologics in some patient subsets, potentially offering a competitive edge.

  2. What is the current development status of DILOR?
    It is in late-stage clinical trials (Phase III) for rheumatoid arthritis, with regulatory submissions anticipated in late 2023 or early 2024.

  3. What is the projected market size for DILOR?
    If approved and commercially successful, peak sales could reach USD 2–3 billion annually.

  4. What are the main risks associated with investing in DILOR?
    Clinical trial failure, regulatory delays, market competition, and pricing negotiations pose significant risks.

  5. When is DILOR expected to reach the market?
    Likely launch in North America by 2025, subject to successful regulatory review.


References

[1] Market data on autoimmune diseases, GBI Research (2022).
[2] Competitive landscape analysis, GlobalData (2022).
[3] Clinical trial reports, ClinicalTrials.gov (2023).
[4] Patent filings, World Intellectual Property Organization (2023).

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