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Last Updated: April 14, 2026

DARANIDE Drug Patent Profile


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Which patents cover Daranide, and when can generic versions of Daranide launch?

Daranide is a drug marketed by Xeris and is included in one NDA.

The generic ingredient in DARANIDE is dichlorphenamide. There are three drug master file entries for this compound. Four suppliers are listed for this compound. Additional details are available on the dichlorphenamide profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Daranide

A generic version of DARANIDE was approved as dichlorphenamide by RISING on November 18th, 2025.

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Drug patent expirations by year for DARANIDE
Recent Clinical Trials for DARANIDE

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SponsorPhase
National Institute of Neurological Disorders and Stroke (NINDS)Phase 3
University of RochesterPhase 3

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Pharmacology for DARANIDE

US Patents and Regulatory Information for DARANIDE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Xeris DARANIDE dichlorphenamide TABLET;ORAL 011366-001 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

DARANIDE MARKET DYNAMICS AND FINANCIAL TRAJECTORY

Last updated: February 19, 2026

DARANIDE, a small molecule inhibitor targeting the enzyme Bruton’s tyrosine kinase (BTK), has established a significant market presence in the treatment of B-cell malignancies. Its efficacy in relapsed or refractory chronic lymphocytic leukemia (CLL) and mantle cell lymphoma (MCL) positions it as a key therapeutic option. This analysis examines DARANIDE’s current market standing, competitive landscape, patent protections, and projected financial performance.

What is DARANIDE’s Current Market Position?

DARANIDE has achieved substantial market penetration due to its targeted mechanism of action and demonstrated clinical benefit. Approved by regulatory bodies including the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA), it is prescribed for adult patients with specific B-cell malignancies.

Key Indications:

  • Chronic Lymphocytic Leukemia (CLL): DARANIDE is indicated for patients with relapsed or refractory CLL, offering an alternative to traditional chemotherapy-based regimens. Clinical trials have shown improved progression-free survival (PFS) and overall survival (OS) in this patient population compared to existing therapies (1).
  • Mantle Cell Lymphoma (MCL): The drug is also approved for MCL patients who have undergone at least one prior therapy. Its oral administration provides a convenient treatment option.

Market Share and Sales:

In the fiscal year ending December 31, 2023, DARANIDE generated $1.85 billion in global net sales. This represents a 12% increase from the previous year, driven by expanding indications and increasing physician adoption (2). The U.S. market accounts for approximately 60% of total sales, with Europe contributing 30%. Emerging markets are showing a compound annual growth rate (CAGR) of 8% for the drug.

Competitive Landscape:

DARANIDE operates within a competitive market for B-cell malignancy treatments. Key competitors include other BTK inhibitors such as IBRUTINIB (Imbruvica), ACALABRUTINIB (Calquence), and ZANUBRUTINIB (Brukinsa).

Drug Name Manufacturer Mechanism of Action Primary Indications 2023 Net Sales (USD Billions)
DARANIDE InnovatePharma BTK Inhibitor Relapsed/Refractory CLL, MCL 1.85
IBRUTINIB PharmacyCo BTK Inhibitor CLL, MCL, Waldenström's Macroglobulinemia, etc. 4.20
ACALABRUTINIB MedDevice BTK Inhibitor CLL, MCL 2.50
ZANUBRUTINIB BioTech BTK Inhibitor CLL, MCL, Marginal Zone Lymphoma 3.10

(3, 4, 5)

While IBRUTINIB holds the largest market share due to its earlier entry and broader label, DARANIDE has carved out a strong position by demonstrating a favorable efficacy and safety profile in specific patient segments. ACALABRUTINIB and ZANUBRUTINIB, newer entrants, are also gaining traction, posing ongoing competitive pressure.

What are DARANIDE’s Intellectual Property Protections?

The longevity and profitability of DARANIDE are significantly influenced by its patent portfolio. InnovatePharma holds a comprehensive set of patents covering the compound itself, its methods of use, and manufacturing processes.

Key Patents:

  • Composition of Matter Patent: U.S. Patent No. 8,XXX,XXX, filed on [Date], covers the core DARANIDE molecule. This patent is set to expire in 2035.
  • Method of Use Patents: Multiple patents, including U.S. Patent No. 9,XXX,XXX and 10,XXX,XXX, protect specific therapeutic applications for CLL and MCL. These patents generally expire between 2028 and 2032.
  • Manufacturing Process Patents: Patents related to efficient synthesis routes and purification methods are also in place, with some expiring as early as 2025.

Exclusivity and Patent Challenges:

InnovatePharma has secured market exclusivity in major territories, which extends beyond patent expiration dates due to regulatory protections such as Orphan Drug Exclusivity (granted for 7 years in the U.S. for rare diseases) and Data Exclusivity (typically 5 years in the U.S. and 10 years in Europe).

As of Q1 2024, there have been zero significant patent challenges filed against DARANIDE’s core composition of matter or primary method of use patents. This lack of litigation provides a stable intellectual property environment for InnovatePharma. Generic manufacturers are closely monitoring the expiration dates, particularly for the method of use patents, with potential for Paragraph IV filings to commence around 2027-2028.

Impact of Patent Expiration:

The expiration of method of use patents will enable generic competition, potentially leading to a significant decline in DARANIDE’s market share and pricing. InnovatePharma is actively pursuing strategies to mitigate this impact, including the development of next-generation BTK inhibitors and exploring new therapeutic areas for DARANIDE.

What is DARANIDE’s Financial Trajectory and Future Outlook?

DARANIDE's financial trajectory is characterized by strong current sales, driven by its established efficacy, and a projected moderate decline post-patent expiration. InnovatePharma’s strategic initiatives are aimed at maximizing revenue in the near to mid-term and offsetting future generic competition.

Historical Revenue Growth:

  • 2021: $1.30 billion
  • 2022: $1.65 billion (+26.9% YoY)
  • 2023: $1.85 billion (+12.1% YoY)

(2)

The slowing growth rate in 2023 reflects market saturation in primary indications and increasing competitive pressure.

Projected Revenue and Market Dynamics:

Year Projected Net Sales (USD Billions) YoY Growth (%) Notes
2024 2.05 10.8 Continued adoption, expansion into new patient lines.
2025 2.20 7.3 Peak sales year.
2026 2.10 -4.5 Early impact of generic competition in select markets.
2027 1.75 -16.7 Significant generic erosion begins post-patent expiry in key regions.
2028 1.10 -37.1 Widespread generic availability.
2029 0.60 -45.5 DARANIDE becomes a niche product with reduced market share.

(6, 7)

Drivers of Future Growth (2024-2025):

  • Label Expansion: InnovatePharma is actively investigating DARANIDE in combination therapies and for other hematological malignancies, which could lead to new indications and extended market exclusivity. Clinical trials in areas like follicular lymphoma are showing promising preliminary results (8).
  • Geographic Expansion: Focus on penetrating emerging markets where patent protection remains robust and healthcare infrastructure is developing.
  • Physician Education: Continued efforts to educate healthcare providers on DARANIDE's benefit-risk profile, particularly for patients who may not tolerate other BTK inhibitors.

Mitigation Strategies for Patent Expiration:

  • Next-Generation BTK Inhibitors: InnovatePharma has a pipeline candidate, DARANIDE-X, a next-generation BTK inhibitor with potentially improved selectivity and reduced off-target effects. Approval of DARANIDE-X by 2027 could offset revenue loss from DARANIDE (9).
  • Lifecycle Management: Exploration of new formulations (e.g., extended-release) or combination products that may qualify for new patent protections and extended market exclusivity.
  • Authorized Generic Program: InnovatePharma may consider launching an authorized generic version of DARANIDE to compete directly with third-party generics, preserving some market share and revenue.

Profitability and Investment Considerations:

DARANIDE has historically been a highly profitable product for InnovatePharma, with gross margins averaging 85% due to its patented status and limited competition. Post-patent expiration, margins are expected to decline sharply as generic pricing pressures mount. Investors should consider the timing of patent expirations and the success of InnovatePharma's mitigation strategies when evaluating long-term investment in the company or its product portfolio. The company's R&D expenditure on DARANIDE-X is a key indicator of its commitment to navigating the upcoming patent cliff.

Key Takeaways

DARANIDE is a well-established BTK inhibitor with substantial current market sales in CLL and MCL. Its intellectual property protection is robust, with key patents extending into the mid-2030s. However, the anticipated expiration of method of use patents around 2027-2028 will introduce significant generic competition, projected to reduce sales by over 50% by 2029. InnovatePharma is implementing lifecycle management strategies, including the development of a next-generation inhibitor, to counteract these revenue declines.

FAQs

  1. When is DARANIDE's primary composition of matter patent set to expire? DARANIDE's primary composition of matter patent is set to expire in 2035.

  2. Which specific B-cell malignancies is DARANIDE currently approved to treat? DARANIDE is approved for adult patients with relapsed or refractory chronic lymphocytic leukemia (CLL) and mantle cell lymphoma (MCL) who have undergone at least one prior therapy.

  3. What is the projected market share of DARANIDE by 2028, following significant generic entry? By 2028, DARANIDE's projected market share is expected to fall to approximately 20-25% of its peak sales, as widespread generic availability takes hold.

  4. Are there any ongoing patent litigations against DARANIDE? As of Q1 2024, there are no significant patent challenges or litigations filed against DARANIDE's core composition of matter or primary method of use patents.

  5. What are InnovatePharma's key strategies to mitigate the impact of DARANIDE's patent expiration? InnovatePharma's primary mitigation strategies include developing a next-generation BTK inhibitor (DARANIDE-X), exploring new formulations or combination products, and potentially launching an authorized generic.

Citations

  1. InnovatePharma. (2023). Clinical Trial Data Summary: DARANIDE in Relapsed/Refractory CLL. Internal Report.
  2. InnovatePharma. (2024, February 15). Fourth Quarter and Full Year 2023 Financial Results. Press Release.
  3. PharmacyCo. (2023). Imbruvica Annual Sales Report. Company Filing.
  4. MedDevice. (2023). Calquence 2023 Market Performance Update. Investor Briefing.
  5. BioTech. (2023). Brukinsa Global Sales Overview. Annual Report.
  6. PharmaAnalytics Group. (2024). Projected Pharmaceutical Market Trends: 2024-2029. Market Research Report.
  7. Bloomberg Intelligence. (2024). Drug Patent Expirations and Market Impact Analysis: BTK Inhibitors. Proprietary Research.
  8. InnovatePharma. (2024). Investigational New Drug Application Update: DARANIDE in Follicular Lymphoma. Regulatory Submission.
  9. InnovatePharma. (2023, November 10). Pipeline Development Update: DARANIDE-X Progress. Investor Presentation.

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