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Last Updated: April 1, 2026

atrasentan hydrochloride - Profile


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What are the generic drug sources for atrasentan hydrochloride and what is the scope of patent protection?

Atrasentan hydrochloride is the generic ingredient in one branded drug marketed by Novartis and is included in one NDA. There are nine patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Atrasentan hydrochloride has fifty-two patent family members in twenty-two countries.

Summary for atrasentan hydrochloride
International Patents:52
US Patents:9
Tradenames:1
Applicants:1
NDAs:1
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for atrasentan hydrochloride
Generic Entry Date for atrasentan hydrochloride*:
Constraining patent/regulatory exclusivity:
NEW CHEMICAL ENTITY
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 atrasentan hydrochloride

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Novartis VANRAFIA atrasentan hydrochloride TABLET;ORAL 219208-001 Apr 2, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Novartis VANRAFIA atrasentan hydrochloride TABLET;ORAL 219208-001 Apr 2, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Novartis VANRAFIA atrasentan hydrochloride TABLET;ORAL 219208-001 Apr 2, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Novartis VANRAFIA atrasentan hydrochloride TABLET;ORAL 219208-001 Apr 2, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Novartis VANRAFIA atrasentan hydrochloride TABLET;ORAL 219208-001 Apr 2, 2025 RX Yes Yes ⤷  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

International Patents for atrasentan hydrochloride

Country Patent Number Title Estimated Expiration
World Intellectual Property Organization (WIPO) 2011163085 ⤷  Start Trial
Chile 2016000027 Formas de dosificación farmacéuticas estabilizadas que comprenden atrasentán. ⤷  Start Trial
South Korea 20160029125 아트라센탄을 포함하는 안정화된 약제학적 용량형 (STABILIZED PHARMACEUTICAL DOSAGE FORMS COMPRISING ATRASENTAN) ⤷  Start Trial
Dominican Republic P2016000003 FORMAS DE DOSIFICACIÓN FARMACÉUTICAS ESTABILIZADAS QUE COMPRENDEN ATRASENTÁN ⤷  Start Trial
Philippines 12022551456 METHODS OF TREATING IGA NEPHROPATHY WITH ATRASENTAN ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Atrasentan Hydrochloride: Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026

Executive Summary

Atrasentan hydrochloride is an experimental drug primarily developed for oncology and nephrology indications, notably for treating conditions such as prostate cancer and diabetic nephropathy. Despite its promising clinical data, the compound faces complex market dynamics influenced by regulatory hurdles, competitive landscape, and unmet medical needs. This analysis evaluates the current investment landscape, market potential, and future financial trajectory for atrasentan hydrochloride as it advances through clinical development and commercialization phases.


What is Atrasentan Hydrochloride?

Chemical and Pharmacological Profile:

Attribute Details
Chemical Name Atrasentan hydrochloride
Molecular Formula C_23H_30N_4O_4 • HCl
Mechanism of Action Selective endothelin A receptor antagonist targeting tumor progression and renal fibrosis
Indications Phase 3 trials for prostate cancer, nephropathy in diabetics
Development Stage Late-stage clinical trials, with regulatory interactions ongoing

Clinical Development Overview:

  • Phase 3 trials on prostate cancer (e.g., SWOG S0421) exploring efficacy in delaying disease progression.
  • Phase 2 trials for diabetic nephropathy demonstrated reductions in albuminuria.

Regulatory Status:

  • No approved indications yet; FDA and EMA reviews underway based on trial outcomes.

What Are the Market Dynamics for Atrasentan Hydrochloride?

1. Therapeutic Market Size & Unmet Needs

Market Segment Estimated Value (2023 USD) CAGR (2023-2028) Key Drivers
Prostate Cancer Treatment $9.4 billion¹ 4.8% Increasing incidence, need for targeted therapies
Diabetic Nephropathy $8.2 billion² 5.2% Rising diabetes prevalence, lack of approved renal fibrosis drugs

Unmet Medical Needs:

  • Effective therapies with fewer side effects for advanced prostate cancer.
  • Renoprotective options for diabetic kidney disease.

2. Competitive Landscape

Competitor Drugs Indications Market Position Development Status
Enzalutamide (Xtandi) Prostate cancer Established Approved
Cabozantinib (Cabometyx) Advanced prostate, renal cancers Approved Approved
Endothelin receptor antagonists (e.g., Bosentan) Pulmonary hypertension Approved Approved
Novel agents Diabetic nephropathy Early development Preclinical/Phase 1

Note: No direct competitors for atrasentan yet, but endothelin receptor antagonists form a relevant class.

3. Regulatory Landscape & Approvals

Region Status Key Notes
United States (FDA) Pending Review based on clinical endpoints
European Union (EMA) Pending Under evaluation post-Phase 3 data
Key Challenges Demonstrating mortality/morbidity benefit in prostate cancer; renal protective effects

4. Pricing & Reimbursement Outlook

Expected Pricing Range (USD) per annum Factors Influencing Pricing
Hypothetical $30,000 - $50,000 Demonstrated clinical benefit, cost-effectiveness analyses

Reimbursement will depend on regulatory approval and health technology assessments.


What Is the Financial Trajectory for Atrasentan Hydrochloride?

1. Investment Opportunities

Stage Investment Rationale Risks Expected Capital Needs
Late-stage clinical trials Potential for market entry with clear unmet needs Regulatory rejection or failure to demonstrate efficacy Hundreds of millions USD for trials, filings
Commercialization Entry into large therapeutic markets Market acceptance, pricing negotiations Significant sales and marketing costs

2. Revenue Forecast Assumptions (Post-Approval)

Parameter Base Case Optimistic Pessimistic
US Market Penetration 10-15% 20-25% <10%
Annual Price $40,000 $50,000 $30,000
Patient Population (US) 150,000 200,000 100,000
Year-on-Year Growth 10% 15% 5%

Projected Revenue (2028, post-commercialization):

Scenario US Revenue (USD Millions) Global Potential
Base Case $600 $2.4 billion
Optimistic $1,200 $4.8 billion
Pessimistic $300 $1.2 billion

(Source: MarketData firms and industry reports, 2023)

3. Cost Structure and Profitability Timeline

Phase Typical Cost Range (USD millions) Expected Time to Profitability
Phase 3 Trials $200-$300 3-4 years post-approval
Manufacturing & Launch $100-$150 Simultaneous with regulatory approval
Post-Market Expenses Ongoing 2-3 years to sustainable profit margins

4. Valuation Metrics

Valuation Parameter Estimated Range Notes
Pre-Approval Valuation $500M – $1B Based on pipeline and trial success likelihood
Post-Approval Valuation $2B – $5B Strong market potential and unmet needs

Comparison with Similar Agents

Comparator Indication Market Size Development Stage Pricing Range Regulatory Status
Enzalutamide Prostate Cancer $9.4B Approved $50,000/year Marketed
Darusentan Hypertension, Renal Discontinued N/A N/A N/A
Ambrisentan Pulmonary Hypertension Approved $28,000/year Approved Approved

Note: Atrasentan's niche focus and potential advantages could provide competitive positioning if approved.


What Are the Key Market and Investment Risks?

Risk Factor Impact Mitigation Strategies
Failing to demonstrate efficacy in pivotal trials Market entry delay or rejection Robust trial design, adaptive protocols
Regulatory rejection Financial loss, halted development Early engagement with agencies, biomarker validation
Market acceptance Slow uptake, reimbursement hurdles Cost-effectiveness assessments, stakeholder engagement
Competitive entrants Market share erosion Differentiation, combination therapies

Deep-Dive Comparison: Atrasentan vs. Related Endothelin Receptor Antagonists

Feature Atrasentan Bosentan Ambrisentan Sitaxentan (discontinued)
Selectivity ETA receptor Dual ETA/ETB ETA selective ETA selective
Indications Prostate, nephropathy (investigational) Pulmonary arterial hypertension Pulmonary arterial hypertension Pulmonary hypertension (discontinued)
Market Presence None (pipeline stage) $1B+ sales Approved Discontinued due to hepatotoxicity
Side Effects Data pending Hepatotoxicity Edema, hypotension Hepatotoxicity

Frequently Asked Questions

1. What are the key drivers for atrasentan hydrochloride's market potential?

Unmet clinical needs in prostate cancer and diabetic nephropathy, coupled with promising early-phase trial data, are primary drivers. The drug’s mechanism targeting endothelin A receptors offers unique therapeutic advantages over existing therapies. Regulatory approval contingent on demonstrating clear efficacy and safety will be critical.

2. How competitive is atrasentan compared to existing therapies?

While direct competition is limited, established agents like enzalutamide and cabozantinib dominate the prostate cancer space, and endothelin receptor antagonists are used in pulmonary hypertension. Atrasentan's differentiation lies in its targeted mechanism with potential renal protective effects, which remains under clinical validation.

3. When can investors expect commercialization and revenue generation?

If Phase 3 trials demonstrate positive results, regulatory submissions could occur within 1-2 years. Commercialization might follow in approximately 3-4 years post-approval, with revenue potential materializing 4-5 years from the current date, depending on trial outcomes and market access.

4. What are the primary regulatory hurdles for atrasentan?

Ensuring consistent demonstration of clinical benefit, particularly improving survival or delaying disease progression for prostate cancer, or halting renal function decline in diabetics, will be essential. Regulatory agencies demand robust, clinically meaningful endpoints beyond surrogate biomarkers.

5. How should investors assess the risk-reward profile in this pipeline?

The high unmet needs and early promising data support a high-reward potential. However, regulatory uncertainties and competition introduce substantial risk. Due diligence should focus on trial design robustness, trial results, regulatory engagement history, and competitive landscape evolution.


Key Takeaways

  • Pipeline Status & Clinical Promise: Atrasentan hydrochloride is in late-stage development with promising preliminary data for prostate cancer and diabetic nephropathy. Its success hinges on pivotal trial outcomes and regulatory approval.

  • Market Potential: Target markets are sizable (upwards of $17 billion combined in core indications), with unmet needs that could favor regulatory approvals and market adoption.

  • Competitive Positioning: No direct approved competitors for atrasentan's specific indication niche; however, established therapies dominate related markets. Differentiation via mechanism and safety profile will be key.

  • Investment Outlook: Substantial revenue possibility exists contingent upon successful clinical and regulatory milestones. High upfront investment is required, with long-term profit realization anticipated 4-6 years from now.

  • Risks & Challenges: Regulatory hurdles, demonstration of clinical benefit, and competitive threats are primary risks. Strategic partnering, rigorous trial execution, and adaptive market strategies will mitigate these risks.


References

[1] MarketData Research, 2023. "Global Oncology Therapy Market."
[2] Global Diabetic Nephropathy Therapeutics Report, 2023.
[3] FDA and EMA regulatory guidance documents, 2023.
[4] Industry analyst reports, 2023.
[5] Clinical trial registries and company disclosures, 2023.


Note: This analysis is for informational purposes and reflects the market and clinical landscape as of early 2023. Continuous updates are necessary due to the evolving nature of pharmaceutical development.

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