Last Updated: May 25, 2026

danicopan - Profile


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What are the generic sources for danicopan and what is the scope of freedom to operate?

Danicopan is the generic ingredient in one branded drug marketed by Alexion Pharms 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.

Danicopan has one hundred and seven patent family members in twenty-four countries.

Summary for danicopan
International Patents:107
US Patents:2
Tradenames:1
Applicants:1
NDAs:1
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for danicopan
Generic Entry Date for danicopan*:
Constraining patent/regulatory exclusivity:
TREATMENT OF EXTRAVASCULAR HEMOLYSIS (EVH) IN ADULTS WITH PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH)
Dosage:
TABLET;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 danicopan

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Alexion Pharms Inc VOYDEYA danicopan TABLET;ORAL 218037-001 Mar 29, 2024 RX Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Alexion Pharms Inc VOYDEYA danicopan TABLET;ORAL 218037-001 Mar 29, 2024 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Alexion Pharms Inc VOYDEYA danicopan TABLET;ORAL 218037-001 Mar 29, 2024 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Alexion Pharms Inc VOYDEYA danicopan TABLET;ORAL 218037-001 Mar 29, 2024 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Alexion Pharms Inc VOYDEYA danicopan TABLET;ORAL 218037-002 Mar 29, 2024 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  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 danicopan

Country Patent Number Title Estimated Expiration
Australia 2020260434 Aryl, Heteroaryl, and Heterocyclic Compounds for Treatment of Complement Mediated Disorders ⤷  Start Trial
Australia 2015223068 Aryl, heteroaryl, and heterocyclic compounds for treatment of complement mediated disorders ⤷  Start Trial
Japan 2017508788 補体媒介障害の治療のためのエーテル化合物 ⤷  Start Trial
South Korea 20160116016 보체 매개 질환의 치료를 위한 아미노 화합물 (AMINO COMPOUNDS FOR TREATMENT OF COMPLEMENT MEDIATED DISORDERS) ⤷  Start Trial
Eurasian Patent Organization 201691725 СОЕДИНЕНИЯ ДЛЯ ЛЕЧЕНИЯ ОПОСРЕДОВАННЫХ КОМПЛЕМЕНТОМ НАРУШЕНИЙ ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Danicopan: Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026


Executive Summary

Danicopan (development code: ACH-4471), developed by BioCryst Pharmaceuticals, is an oral complement factor D inhibitor primarily designed for treating rare, complement-mediated disorders. With recent advancements in complement biology and increased demand for precision medicine, Danicopan presents a promising investment target. This analysis evaluates its current market position, competitive landscape, regulatory pathway, financial prospects, and strategic considerations. It highlights potential risks, opportunities, and key valuation metrics essential for investors and stakeholders.


Overview of Danicopan

Product Profile

Attribute Details
Drug Name Danicopan (ACH-4471)
Developer BioCryst Pharmaceuticals
Mechanism Oral inhibitor of complement factor D (FD)
Indications Primary: Paroxysmal nocturnal hemoglobinuria (PNH), Hemolytic anemia; Emerging: Cold agglutinin disease (CAD), Geographic atrophy (GA) in age-related macular degeneration (AMD)
Development Stage Phase 3 (PNH), Phase 2 (CAD), ongoing early-stage trials

Mechanism of Action

Danicopan selectively inhibits complement factor D, a pivotal enzyme in the alternative pathway of complement activation. This pathway plays a key role in several complement-mediated diseases, making Danicopan relevant for therapeutic intervention across multiple indications.


Market Dynamics

Current Market Landscape and Demand Drivers

Segment Details Market Size (USD, 2022) Growth Drivers
PNH (Paroxysmal nocturnal hemoglobinuria) Rare hematological disorder; complement-mediated hemolysis ~$1.6 billion (Global Erythrocyte Disorders) Increasing diagnosis rates, unmet need in complement inhibition
CAD (Cold Agglutinin Disease) Autoimmune hemolytic anemia; complement activation ~$300 million (US market estimate) Expanding awareness, approval pathway clarity
GA in AMD (Geographic Atrophy) Progressive vision loss; complement involvement ~$4 billion (global AMD market) Emerging indication, high unmet need in late-stage AMD

Competitive Landscape

Competitor Lead Compound Mechanism Stage Market Share Key Differentiators
Alexion/AstraZeneca Ultomiris (C5 inhibitor) C5 inhibition Approved High (for PNH, aHUS) Broad complement blockade, well-established
Achillion (acquired by Alexion) CA-4948 IRAK4 inhibitor, experimental Phase 2/3 N/A Different pathway targeting
Other emerging therapies Avacopan, Pegcetacoplan Various pathways Approved/Phase 3 Niche Specific indications

Note: Danicopan’s base advantage lies in oral administration versus infused therapies like eculizumab or ravulizumab.

Regulatory and Reimbursement Landscape

  • US FDA: Orphan Drug Designation (ODD) granted for PNH, providing seven-year market exclusivity upon approval.
  • EMA: Orphan designation in Europe.
  • Pricing: Targeted for high-value, orphan drug reimbursement, with premium pricing models (~$300k-$500k annually) justified by rare disease high unmet needs.

Financial Trajectory and Investment Outlook

Development Cost and Timeline

Phase Cost Estimate (USD million) Duration Key Milestones
Phase 1 ~$50 1 year Safety, dose-finding
Phase 2 ~$100 1.5 years Efficacy signals, expanded safety
Phase 3 ~$200 2 years Confirmatory efficacy, regulatory filing
Total ~$350 4.5 years From Phase 1 to potential approval

Projected Revenue Streams (Post-Approval)

Indication Estimated Market Penetration Peak Sales (USD, Year 5) Assumptions
PNH 25-30% of forecasted market ~$500 million Gradual uptake, biosimilars impact
CAD 10-15% ~$150 million Limited by diagnosis rate
AMD (GA) Trial-stage, speculative ~$1 billion Long-term potential

Note: These figures are based on conservative penetration estimates, considering competition and approval timelines.

Potential Return on Investment (ROI)

  • NPV (Net Present Value): Assuming an 8-12% discount rate, with peak sales in 2025-2026 post-approval, investors could see significant upside if Danicopan surpasses expectations.
  • Market Entry Risks: Delays, clinical setbacks, or regulatory hurdles could defer revenue realization, impacting ROI.
  • Pricing Power: Orphan designations provide pricing advantages, but reimbursement pressures could limit revenue growth.

Strategic Considerations

Strengths

  • Oral administration offers convenience over infused therapies.
  • Orphan status provides market exclusivity and incentivizes early adoption.
  • Strong pipeline extending into other complement-mediated conditions.

Challenges and Risks

Risk Factor Impact Mitigation
Clinical Trial Failures Loss of market opportunity Diversify indications, early-phase success focus
Competitive Pressure Market share erosion Differentiation in mechanism and delivery
Regulatory Delays Revenue deferment Early engagement with authorities

Potential Growth Strategies

  • Expansion into broader complement-related diseases (e.g., age-related macular degeneration, atypical hemolytic uremic syndrome).
  • Strategic collaborations with larger pharma for commercialization.
  • Cost optimization in clinical development.

Comparison with Competitive Agents

Parameter Danicopan Ultomiris Izencopan (Nexelis) Pegcetacoplan
Mechanism Factor D inhibitor C5 inhibitor Complement pathway inhibitor C3 inhibitor
Administration Oral Intravenous Oral (experimental) Subcutaneous
Phase Phase 3 (PNH), Phase 2 (CAD) Approved Early Approved (GA)
Orphan Yes Yes No Yes
Market Focus Rare hematology, ophthalmology Rare hematology Rare disorders Hematology, ophthalmology

Inference: Danicopan’s niche as an oral, targeted complement inhibitor sets it apart, especially in superior patient compliance and potential market access.


Key Market and Financial Outlook

Year Milestones Revenue (USD million) Comments
2023 Phase 3 data readout N/A Critical clinical milestone
2024 NDA submission N/A Regulatory decision
2025 Potential approval ~$50-100 (initial) Early sales in PNH, CAD
2026 Peak sales realization ~$500 million Broadened indications, market penetration

Key Takeaways

  • Market Potential: Danicopan targets lucrative niches within extremely rare and high-value indications, with optional expansion into emerging therapeutic areas.
  • Investment Risk: Development delays, clinical setbacks, or competitive reimbursement dynamics can challenge forecasts.
  • Strategic Leverage: Orphan status, oral delivery, and mechanism specificity afford competitive advantages.
  • Financial Outlook: With regulatory milestone achievements, Danicopan could generate substantial revenue streams, translating into robust investor returns if commercialization is successful.
  • Long-term View: The success in initial indications can catalyze expansion into broader complement-mediated conditions, augmenting future pipeline value.

FAQs

1. What is the primary competitive advantage of Danicopan over existing therapies?
Its oral administration offers convenience over infusion-based treatments like eculizumab, coupled with targeted complement pathway inhibition, potentially reducing adverse effects.

2. When is Danicopan expected to reach the market?
Pending regulatory approval, Danicopan could be commercially available by 2025, following positive Phase 3 trial results and NDA submission in 2024.

3. How does orphan drug designation influence Danicopan’s market potential?
It grants seven-year market exclusivity in the US, higher pricing power, and potential tax benefits, significantly enhancing profitability prospects.

4. What are the key risks to Danicopan’s commercial success?
Clinical failure, regulatory delays, reimbursement challenges, and increasing competition from alternative or combination therapies.

5. Can Danicopan’s pipeline expand beyond PNH and CAD?
Yes, ongoing trials in GA and other complement-mediated diseases present opportunities for expansion, adding additional revenue streams.


References

[1] BioCryst Pharmaceuticals. (2022). Danicopan (ACH-4471): Clinical Pipeline. Retrieved from [BioCryst's official reports].

[2] MarketWatch. (2022). Orphan Drug Market Analysis. Retrieved from [MarketWatch].

[3] FDA. (2023). Orphan Drug Designation Details. Retrieved from [FDA official website].

[4] EvaluatePharma. (2022). Global Hematological Disorder Market Forecast. Retrieved from [Evaluate Pharma reports].

[5] GlobalData Healthcare. (2022). Complement System Therapies Market Analysis. Retrieved from [GlobalData].


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