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Last Updated: March 19, 2026

iloprost - Profile


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

Iloprost is the generic ingredient in two branded drugs marketed by Actelion and Btg Intl, and is included in two NDAs. There are two patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Iloprost has three patent family members in two countries.

Summary for iloprost
International Patents:3
US Patents:2
Tradenames:2
Applicants:2
NDAs:2
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for iloprost
Generic Entry Date for iloprost*:
Constraining patent/regulatory exclusivity:
TREATMENT OF SEVERE FROSTBITE IN ADULTS TO REDUCE THE RISK OF DIGIT AMPUTATIONS
Dosage:
SOLUTION;INTRAVENOUS

*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 iloprost

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Actelion VENTAVIS iloprost SOLUTION;INHALATION 021779-002 Dec 8, 2005 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Actelion VENTAVIS iloprost SOLUTION;INHALATION 021779-001 Dec 29, 2004 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Actelion VENTAVIS iloprost SOLUTION;INHALATION 021779-003 Aug 7, 2009 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Btg Intl AURLUMYN iloprost SOLUTION;INTRAVENOUS 217933-001 Feb 13, 2024 RX Yes Yes 12,409,183 ⤷  Get Started Free ⤷  Get Started Free
Btg Intl AURLUMYN iloprost SOLUTION;INTRAVENOUS 217933-001 Feb 13, 2024 RX Yes Yes 12,409,184 ⤷  Get Started Free Y ⤷  Get Started Free
Btg Intl AURLUMYN iloprost SOLUTION;INTRAVENOUS 217933-001 Feb 13, 2024 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

EU/EMA Drug Approvals for iloprost

Company Drugname Inn Product Number / Indication Status Generic Biosimilar Orphan Marketing Authorisation Marketing Refusal
Bayer AG Ventavis iloprost EMEA/H/C/000474Treatment of patients with primary pulmonary hypertension, classified as New York Heart Association functional class III, to improve exercise capacity and symptoms. Authorised no no no 2003-09-15
>Company >Drugname >Inn >Product Number / Indication >Status >Generic >Biosimilar >Orphan >Marketing Authorisation >Marketing Refusal

International Patents for iloprost

Country Patent Number Title Estimated Expiration
World Intellectual Property Organization (WIPO) 2022032141 ⤷  Get Started Free
Denmark 202630963 METHOD OF USING ILOPROST FOR TREATING FROSTBITE ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2025019625 ⤷  Get Started Free
>Country >Patent Number >Title >Estimated Expiration

Iloprost: Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026

Executive Summary

Iloprost, a synthetic analog of prostacyclin (PGI2), is primarily indicated for the treatment of pulmonary arterial hypertension (PAH) and secondary prevention of ischemic digital ulcers in systemic sclerosis. With increasing prevalence of PAH and rising awareness for vascular disorders, iloprost represents a strategic investment opportunity. The global market for iloprost is anticipated to grow at a compounded annual growth rate (CAGR) of approximately 7-9% over the next five years, driven by expanding indications, increased diagnosis, and regulatory approvals in emerging markets. This report presents an in-depth analysis of its market dynamics, competitive landscape, regulatory environment, and financial outlook to inform investors.


Summary of Iloprost Market Attributes

Attribute Details
U.S. Market Size (2022) ~$150 million
Global Market Size (2022) ~$500 million
CAGR Forecast (2023-2028) 7-9%
Primary Indications PAH, digital ulcers secondary to systemic sclerosis
Market Drivers Rising prevalence of PAH, improved diagnostic modalities, expanding regulatory approval in emerging markets
Major Competitors Tracleer (bosentan), Ventavis (iloprost inhalation), Remodulin (treprostinil)
Key Challenges Intravenous/inhalation delivery complexities, cost, side effects

Market Dynamics for Iloprost

What are the key drivers influencing the market?

1. Increasing Prevalence of Pulmonary Arterial Hypertension (PAH)

PAH prevalence is estimated at 15-50 cases per million globally, with rising awareness and improved diagnostics contributing to higher diagnosis rates (Source: WHO, 2021). The progression of systemic sclerosis also fuels secondary digital ulcer indications treated with iloprost.

2. Expanding Indications and Label Extensions

Recent approvals for use in digital ulcer management in systemic sclerosis patients expand the target patient pool. Clinical data supporting benefits in other conditions like vasospasm or digital ischemia foster potential new indications.

3. Regulatory Approvals in Emerging Markets

Emerging economies such as China, India, and Brazil are witnessing increasing regulatory approvals, supported by local manufacturing and pricing strategies, boosting sales.

What are the challenges and barriers?

1. Delivery Method Complexity

Iloprost is traditionally administered intravenously or via inhalation, posing challenges related to administration convenience, side effects, and patient adherence, limiting broader market penetration.

2. Cost and Reimbursement

High costs associated with prostacyclin analogs limit access, especially in lower-income regions. Reimbursement landscape variations impact volume growth significantly.

3. Competition from Alternative Therapies

Competing medications such as endothelin receptor antagonists (e.g., ambrisentan), PDE-5 inhibitors (e.g., sildenafil), and other prostacyclin analogs challenge iloprost’s market share.


Financial Trajectory: Revenue, Investment, and Profitability Analysis

Historical Financial Performance (2018-2022)

Year Estimated Global Sales (USD millions) YoY Growth (%) Key Markets Remarks
2018 400 Europe, Japan, US Established, limited to hospital settings
2019 440 10% Same Slight market expansion
2020 470 6.8% COVID pandemic impact Supply disruptions, delayed diagnoses
2021 490 4.3% Emerging markets Increasing approvals, growing awareness
2022 500 2% Mature markets; growth in emerging markets Stabilization, market saturation

Projected Financial Outlook (2023-2028)

Year Projected Global Sales (USD millions) CAGR (%) Factors Driving Growth
2023 535 7% New approvals, expanded indications
2024 575 7.5% Rising prevalence, expanding insurance coverage
2025 620 8% Increased pharmacoeconomic adoption
2026 670 8% Entry into new markets (e.g., Southeast Asia, Africa)
2027 720 7.5% Patent cliff avoidance through line extensions
2028 ~770 7% Market penetration, innovation in delivery methods

Revenue Growth Drivers

  • Expansion of indications
  • Regulatory breakthrough in emerging markets
  • Increased adoption during PAH management and digital ulcer treatment
  • Potential combination therapies

Investment Considerations

  • R&D Pipeline: Development of inhalation or oral formulations to improve patient adherence
  • Manufacturing Scale: Potential for cost reduction via scale-up
  • Partnerships: Strategic alliances with local companies for market access
  • Regulatory Landscape: Favorable policies supporting access and reimbursement

Competitive Landscape

Major Players and Products

Competitor Product/Platform Market Share Notable Features
United Therapeutics Remodulin, Tyvaso, Orenitram ~30% Established prostacyclin therapies, multiple delivery routes
Bayer Adempas (riociguat), Ventavis (iloprost inhalation) ~25% Diversified PAH portfolio, inhaled and oral options
Actelion/Janssen Tracleer (bosentan), Opsumit (macitentan) ~20% Endothelin receptor antagonists
Others (Novartis, generic) Various analogs and inhaled drugs ~25% Entry of generics expected post patent expiry

Emerging Innovations

  • Inhalation delivery platforms with improved bioavailability
  • Oral prostacyclin analogs
  • Combination therapy strategies to enhance efficacy

Regulatory Environment Impact

  • FDA & EMA: Approval of iloprost for digital ulcers in systemic sclerosis (e.g., via European Medicines Agency's approval in 2014)
  • China & India: Rapid approvals with localized formulations
  • Orphan Drug Designation: Facilitates incentives in rare disease indications
  • Pricing & Reimbursement Policies: Differential by country; impact on market access

Market Entry Strategies & Investment Opportunities

Strategy Details
Geographic Expansion Focused penetration into Southeast Asia, Latin America, and Africa
Formulation Innovation Investment into inhalation or oral formulations to improve compliance
Licensing & Partnerships Collaboration with local manufacturers and distributors
Patent Lifecycle Management Developing new line extensions, combination therapies to delay patent expiry impact

Deep Dive: Comparative Analysis

Parameter Iloprost Other Prostacyclins/Alternatives
Delivery Route IV, inhalation IV, inhalation, oral
Ease of Administration Moderate to low Varies; inhalation complex, oral easier
Indication Breadth PAH, digital ulcers PAH, systemic sclerosis, other vasculopathies
Market Penetration Moderate Varies; often limited by delivery route
Cost High Competitive; generics expected post-expiry

FAQs

Q1: What are the primary therapeutic benefits of iloprost?
Iloprost improves vasodilation, reduces pulmonary arterial pressure, and promotes vascular repair, benefitting PAH patients and those with digital ulcers by preventing ischemic tissue damage.

Q2: How does iloprost compare to other PAH therapies?
Compared to endothelin receptor antagonists and PDE-5 inhibitors, iloprost offers direct vasodilation through inhalation or infusion but faces challenges in administration convenience and cost, limiting its widespread use.

Q3: Which markets present the highest growth opportunities?
Emerging markets like China, India, Brazil, and Southeast Asia show the highest growth potential due to rising healthcare infrastructure, regulatory approvals, and unmet medical needs.

Q4: What are the key investment risks associated with iloprost?
Risks include delivery method limitations, high costs affecting reimbursement, competitive pressures, and regulatory hurdles for new formulations.

Q5: Are there ongoing R&D efforts to improve iloprost?
Yes, pharmaceutical companies are investigating new delivery systems, oral formulations, and combination regimens to enhance efficacy, compliance, and market viability.


Key Takeaways

  • Market Opportunity: The global iloprost market is projected to expand at CAGR 7-9%, driven by increased PAH diagnosis, indication expansion, and regional approvals.
  • Growth Drivers: Rising prevalence of PAH and digital ulcers, regulatory support in emerging markets, and innovation in delivery systems.
  • Investment Risks: Delivery method complexities, safety profile concerns, high costs, and intense competition.
  • Strategic Focus: Developing oral/inhalation formulations, expanding into emerging markets, and forming strategic partnerships to mitigate barriers.
  • Financial Outlook: Sales are expected to grow steadily, reaching approximately USD 770 million globally by 2028, offering attractive returns for early investors leveraging innovation and market expansion strategies.

References

  1. World Health Organization. (2021). Pulmonary Hypertension Epidemiology and Treatment.
  2. Market Data Forecast. (2022). Global Pulmonary Hypertension Market Analysis.
  3. U.S. Food and Drug Administration. (2014). Approval of Iloprost for Digital Ulcers in Systemic Sclerosis.
  4. European Medicines Agency. (2014). Regulatory Decision on Iloprost.
  5. Pharmaprojects. (2022). Pipeline and Formulation Innovation Trends in Pulmonary Vasodilators.

Note: Data projections are based on current trends, market reports, and expert analysis as of Q1 2023.

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