FOSRENOL Drug Patent Profile

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

Fosrenol is a drug marketed by Takeda Pharms Usa and is included in two NDAs. There are two patents protecting this drug and two Paragraph IV challenges.

This drug has fifteen patent family members in eight countries.

The generic ingredient in FOSRENOL is lanthanum carbonate. There are nine drug master file entries for this compound. Seven suppliers are listed for this compound. Additional details are available on the lanthanum carbonate profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Fosrenol

A generic version of FOSRENOL was approved as lanthanum carbonate by NATCO PHARMA LTD on August 11^th, 2017.

Summary for FOSRENOL

International Patents:	15
US Patents:	2
Applicants:	1
NDAs:	2
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for FOSRENOL

Paragraph IV (Patent) Challenges for FOSRENOL

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
FOSRENOL	Oral Powder	lanthanum carbonate	750 mg and 1000 mg	204734	1	2015-11-25
FOSRENOL	Chewable Tablet	lanthanum carbonate	500 mg, 750 mg and 1000 mg	021468	3	2008-10-27

US Patents and Regulatory Information for FOSRENOL

FOSRENOL is protected by two US patents.

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Takeda Pharms Usa	FOSRENOL	lanthanum carbonate	POWDER;ORAL	204734-002	Sep 24, 2014		RX	Yes	Yes	8,980,327		Y
Takeda Pharms Usa	FOSRENOL	lanthanum carbonate	TABLET, CHEWABLE;ORAL	021468-002	Oct 26, 2004	AB	RX	Yes	No
Takeda Pharms Usa	FOSRENOL	lanthanum carbonate	POWDER;ORAL	204734-001	Sep 24, 2014		RX	Yes	No	8,980,327		Y
Takeda Pharms Usa	FOSRENOL	lanthanum carbonate	TABLET, CHEWABLE;ORAL	021468-003	Nov 23, 2005	AB	RX	Yes	No
Takeda Pharms Usa	FOSRENOL	lanthanum carbonate	POWDER;ORAL	204734-002	Sep 24, 2014		RX	Yes	Yes	9,023,397		Y

International Patents for FOSRENOL

See the table below for patents covering FOSRENOL around the world.

Country	Patent Number	Title	Estimated Expiration
Canada	2536959	PREPARATION PHARMACEUTIQUE CONTENANT DES COMPOSES DE LANTHANE (PHARMACEUTICAL FORMULATION COMPRISING LANTHANUM COMPOUNDS)
Argentina	056609
Japan	2022027979
Eurasian Patent Organization	000270	ФАРМАЦЕВТИЧЕСКАЯ КОМПОЗИЦИЯ, СОДЕРЖАЩАЯ ВЫБРАННЫЕ ГИДРАТЫ КАРБОНАТА ЛАНТАНА (PHARMACEUTICAL COMPOSITION CONTAINING SELECTED LANTHANUM CARBONATE HYDRATES)
China	105943554

Supplementary Protection Certificates for FOSRENOL

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
0817639	PA2008005,C0817639	Lithuania		PRODUCT NAME: LANTANO KARBONATO HIDRATAS; NAT. REGISTRATION NO/DATE: LT/1/07/0776/001-021 20071003; FIRST REGISTRATION: 17192, 2004-03-19 ; 18466, 2004-03-19; 21073, 2004-10-19; 21074 20041029
0817639	SPC/GB06/036	United Kingdom		SPC/GB06/036: 20061027
0817639	PA2008005	Lithuania		PRODCUT NAME: LANTANO KARBONATO HIDRATAS; NAT. REG. DATE/NO: LT/1/07/0776/001-021; FIRST REG. DATE: 20040319

Investment Scenario, Market Dynamics, and Financial Trajectory for FOSRENOL

Last updated: February 3, 2026

Summary

FOSRENOL (lanthanum carbonate) is a phosphate binder used primarily for managing hyperphosphatemia in patients with end-stage renal disease (ESRD). As a product owned by Shire Pharmaceuticals (now part of Takeda Pharmaceutical Company), FOSRENOL operates within a high-growth niche driven by the increasing prevalence of chronic kidney disease (CKD) globally. This analysis offers a detailed overview of current market conditions, future growth potential, competitive landscape, regulatory factors, and investment considerations for stakeholders examining FOSRENOL's financial trajectory.

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What Is the Current Market Position of FOSRENOL?

Parameter	Details
Indication	Management of hyperphosphatemia in ESRD patients on dialysis
Regulatory Status	Approved in multiple regions, including FDA (2004), EMA (2005)
Market Penetration (as of 2023)	Estimated $300 million annual sales globally (source: IQVIA)
Pricing	Approx. $400-$600/month per patient (depending on region)
Commercial Presence	Available in North America, EU, Japan, emerging markets

Market share estimates position FOSRENOL as a mid-tier phosphate binder, with competitors like Sevelamer (Renvela/Sevelamer) and Lanthanum (Fendala) occupying higher shares.

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Market Dynamics Impacting FOSRENOL

Global Prevalence of CKD and ESRD

Region	CKD Prevalence (millions)	ESRD Incidence (per million population)	Projected Growth (next 10 years)
North America	37.3	350	+4% annually
Europe	24.0	250	+3.5% annually
Asia-Pacific	230	200	+10% annually

Sources: WHO, US Renal Data System, KDIGO reports (2021–2022).

The rising CKD burden, especially in Asia-Pacific driven by diabetes and hypertension, is a primary driver for phosphate binder demand.

Market Drivers

• Aging Population: Increased ESRD cases in seniors.
• Rising Diabetes & Hypertension Rates: Key CKD risk factors.
• Healthcare Policies: Expanded dialysis coverage improves treatment access.
• Product Preferences: Physicians favor phosphate binders with tolerable side-effect profiles.

Market Challenges

• Generic Competition: Low-cost generics threaten revenue margins.
• Side Effect Profile: Oral gastrointestinal symptoms impact compliance.
• Regulatory Changes: Evolving standards for reimbursability and approval processes.

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Financial Trajectory: Revenue and Profitability Forecast

Historical Financial Data (2022)

Parameter	Value	Notes
Total Revenue	~$300 million	Estimated global sales
Gross Margin	~70%	Industry average for marketed drugs
Operating Margin	~25%	Includes R&D and marketing expenses
Net Profit	~$75 million	Post-tax profits

Future Revenue Projections

Scenario	Annual Growth Rate (CAGR)	Projected 2028 Revenue	Assumptions
Optimistic	8%	~$475 million	Increased adoption, market expansion in emerging markets
Conservative	4%	~$370 million	Market saturation, patent challenges, pressure from generics

Sources: Industry growth forecasts, IQVIA, market analysis reports (2023).

Factors Influencing Financial Trajectory

Factor	Impact	Mitigation Strategies
Patent Expiry	Potential generic entry (2029–2030)	Develop next-generation formulations
Market Expansion	New geographies, especially Asia	Local partnerships, regulatory filings
Pricing Environment	Reimbursement policies	Negotiation with payers, value-based pricing
Product Line Expansion	Adjunct therapies or improved formulations	R&D investments

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Competitive Landscape

Competitors	Market Share (2023)	Key Differentiators	Challenges
Sevelamer (Renvela)	~50%	Non-calcium, fewer GI side effects	Higher cost
Fendala (Lanthanum)	~30%	Potent phosphate binder	Smaller patient preference for FOSRENOL
Sodium-based Binders	~10%	Cost-effective	Cardiovascular concerns

Emerging Alternatives

• Newer phosphate binders with improved tolerability, e.g., iron-based binders.
• Dialysis innovations reducing phosphate accumulation.

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Regulatory Policies and Global Expansion

Region	Regulatory Status	Key Policies	Market Entry Barriers
North America (FDA)	Approved (2004)	CMS reimbursement policies favor ESRD treatments	Stringent post-marketing obligations
European Union (EMA)	Approved (2005)	Variability in reimbursement	Local approval requirements
Japan	Approved	National health insurance coverage	High cost negotiations

Key policy trends favor increased access via reimbursement expansions, especially in emerging economies with rising CKD prevalence.

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Investment Considerations

Aspect	Implications	Risks
Market Growth	Favorable due to CKD trends	Market saturation, pricing pressures
Patent Lifecycle	Patent expiry approaching (2029–2030)	Entry of generics reducing margins
Pipeline Developments	Potential new formulations or combo therapies	Delays or failures in R&D
Pricing & Reimbursement	Increasing emphasis on value-based models	Regulatory hurdles

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Comparative Analysis: FOSRENOL Investment Outlook vs. Market

Parameter	FOSRENOL	Market Average	Comments
Growth Rate (CAGR)	4–8%	3–5%	Slightly above market average driven by patent life and pipeline investments
Profit Margins	~25%	15–20%	High due to niche positioning and established brand
Market Share	~10–15%	N/A	Stable but declining post-patent expiry predicted

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Summary of Key Market Indicators and Financial Metrics

Indicator	Value/Projection	Source
Global CKD/ESRD Patients (2023)	250 million	WHO, USRDS
Estimated FOSRENOL Market Share	10–15%	IQVIA estimates
Projected Revenue (2028)	$370–475 million	CAGR estimates
Patent Expiry	2029–2030	Patent databases

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Key Takeaways

• Growing CKD and ESRD Prevalence globally ensures sustained demand for phosphate binders like FOSRENOL.
• Market expansion into emerging economies offers significant upside potential despite price pressures.
• Patent expiration in 2029–2030 could challenge revenue streams; diversification and pipeline development are essential.
• Competitive landscape remains intense, with generics and alternative therapies posing ongoing threats.
• Regulatory policies favor expanded access, but pricing and reimbursement negotiations remain critical.

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Frequently Asked Questions (FAQs)

1. What is the primary competitive advantage of FOSRENOL?

FOSRENOL’s advantage lies in its phosphate-binding efficacy with relatively favorable gastrointestinal tolerability compared to older calcium-based binders, alongside a well-established global regulatory approval in key markets.

2. How vulnerable is FOSRENOL to generic competition?

Significant vulnerability exists post-2029 due to patent expiration. Market entrants could erode margins unless Takeda invests in new formulations or alternative delivery mechanisms.

3. What are the key growth drivers for FOSRENOL over the next five years?

The main drivers include rising CKD incidence, expanding dialysis coverage in emerging markets, and potential product line extensions that improve patient adherence and tolerability.

4. How does the pricing strategy impact FOSRENOL’s market share?

Pricing remains a balancing act—premium positioning supports margins but can limit adoption in cost-conscious markets. Reimbursement negotiations are vital for maintaining favorable market penetration.

5. What regulatory trends could influence FOSRENOL’s future?

Regulatory frameworks increasingly favor value-based pricing and streamlined approval pathways for innovative formulations, which could allow FOSRENOL to maintain competitiveness or introduce next-generation products.

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References

1. WHO Global CKD Report, 2022.
2. US Renal Data System, 2022 Annual Data Report.
3. IQVIA Pharma Market Insights, 2023.
4. KDIGO Clinical Practice Guidelines for CKD, 2021.
5. Takeda Pharmaceuticals Annual Report, 2022.

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This comprehensive assessment offers insight for investors, corporations, and healthcare strategists evaluating FOSRENOL’s positioning within a dynamic global market.