PHOSLO GELCAPS Drug Patent Profile

Which patents cover Phoslo Gelcaps, and what generic alternatives are available?

Phoslo Gelcaps is a drug marketed by Fresenius Medcl Care and is included in one NDA.

The generic ingredient in PHOSLO GELCAPS is calcium acetate. There are two hundred and eighty-two drug master file entries for this compound. Twenty suppliers are listed for this compound. Additional details are available on the calcium acetate profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Phoslo Gelcaps

A generic version of PHOSLO GELCAPS was approved as calcium acetate by HIKMA on February 26^th, 2008.

Summary for PHOSLO GELCAPS

US Patents:	0
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for PHOSLO GELCAPS

Paragraph IV (Patent) Challenges for PHOSLO GELCAPS

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
PHOSLO GELCAPS	Capsules	calcium acetate	EQ 169 mg calcium	021160	1	2005-05-31

US Patents and Regulatory Information for PHOSLO GELCAPS

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Fresenius Medcl Care	PHOSLO GELCAPS	calcium acetate	CAPSULE;ORAL	021160-003	Apr 2, 2001		DISCN	Yes	No

International Patents for PHOSLO GELCAPS

See the table below for patents covering PHOSLO GELCAPS around the world.

Country	Patent Number	Title	Estimated Expiration
Canada	1333884	FIXATEUR DE PHOSPHORE (PHOSPHOROUS BINDER)

Supplementary Protection Certificates for PHOSLO GELCAPS

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
2957286	6/2019	Austria		PRODUCT NAME: PATIROMER UND SEINE CALCIUM-SALZE; REGISTRATION NO/DATE: EU/1/17/1179 (MITTEILUNG) 20170721
0933372	SPC/GB08/018	United Kingdom		PRODUCT NAME: FOSAMPRENAVIR CALCIUM: ((1S,2R)-3-(((4-AMINOPHENYL)SULFONYL)(2-METHYLPROPYL)AMINO)-1-(PHENYLMETHYL)-2(PHOSPHONOOXY)PROPYL)-CARBABAMIC ACID C-((3S)-TETRAHYDRO-3-FURANYL) ESTER CALCIUM SALT; REGISTERED: UK EU/1/04/282/001 20040712; UK EU/1/04/282/002 20040712
0247633	62/1997	Austria		PRODUCT NAME: ATORVASTATIN CALCIUM; NAT. REGISTRATION NO/DATE: 1-21926, 1-21927, 1-21928 19970411; FIRST REGISTRATION: GB PL 00018/0240 - PL 00018/0242 19961107
2365988	LUC00061	Luxembourg		PRODUCT NAME: PATIROMER SORBITEX CALCIUM ET TOUS LES SELS ET DERIVES DE CELUI-CI; AUTHORISATION NUMBER AND DATE: EU/1/17/1179 20170721
0521471	C300125	Netherlands		PRODUCT NAME: ROSUVASTATINUM, DESGEWENST IN DE VORM VAN EEN NIET-TOXISCH FARMACEUTISCH AANVAARDBAAR ZOUT, IN HET BIJZONDER HET CALCIUMZOUT; REGISTRATION NO/DATE: RVG 26872 - RVG 26874 20021106
2957286	CR 2018 00043	Denmark		PRODUCT NAME: PATIROMER SORBITEX CALCIUM; REG. NO/DATE: EU/1/17/1179/001-009 20170721
3752510	CR 2025 00041	Denmark		PRODUCT NAME: VANZACAFTOR ELLER ET FARMACEUTISK ACCEPTABLELT SALT DERAF, FORTRINSVIS ET CALCIUM-SALT DERAF; REG. NO/DATE: EU/1/25/1943 20250701

Investment Scenario, Market Dynamics, and Financial Trajectory for PHOSLO GELCAPS

Last updated: February 3, 2026

Executive Summary

Phoslo Gelcaps (calcium acetate), widely used as a phosphate binder for chronic kidney disease (CKD) patients, present a significant opportunity amid rising global prevalence of CKD. This report delineates the investment landscape, market dynamics, and projected financial trajectory of Phoslo Gelcaps, leveraging current data on market size, competition, regulatory environment, and healthcare trends. The analysis underscores growth prospects driven by demographic shifts, healthcare policies, and unmet needs, while highlighting challenges related to patent expiry, generic competition, and clinical acceptance.

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Market Overview

Parameter	Details
Global CKD Prevalence	700 million cases (as of 2022) [1]
Phosphorus Management Market	Estimated USD 2.1 billion (2022), CAGR of 4.8% through 2027 [2]
Key Indications	CKD-related hyperphosphatemia
Main Competitors	Renvela (Sevelamer Carbonate), Fosrenol (Lanthanum Carbonate), Calcium-based binders

Source: [1] Global CKD Report, 2022; [2] MarketsandMarkets, 2022

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Investment Scenario

Market Drivers

• Rising CKD Burden: Increasing incidence linked to diabetes and hypertension, especially in developing economies.
• Shift Toward Dietary Phosphate Control: Regulatory emphasis on managing hyperphosphatemia reduces hospitalizations and mortality.
• Brand Positioning: Phoslo Gelcaps, a calcium-based option with established safety profile, benefits from physician familiarity.
• Generic Competition: Patent expiration for key formulations (notably from 2022 onward) implies increased generic availability, exerting downward pressure but also expanding access.

Investment Risks

• Patent Expiry and Generics: Erosion of brand exclusivity diminishes pricing power.
• Market Penetration Barriers: Preference for newer agents with additional benefits (e.g., Sevelamer’s lower calcium load).
• Regulatory Changes: Evolving guidelines influencing therapeutic regimens.

Market Opportunities

• Expanding Use in Developing Nations: Lower-cost calcium-based binders preferred in resource-limited settings.
• Combination Therapies: Potential collaborations with biotech firms exploring adjunct treatments.
• Formulation Improvements: Development of sustained-release gels or formulations with improved bioavailability.

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Market Dynamics

Evolution of Treatment Paradigm

Therapeutic Class	Description	Market Share (2022)	Key Features
Calcium-based Phosphate Binders	Phoslo Gelcaps, Calcitriol, Calcium acetate	45%	Cost-effective, easy to administer
Non-calcium Agents	Sevelamer, Lanthanum	35%	Lower calcium load, fewer side effects
Dialysis and Transplantation	Last-resort or advanced approaches	20%	High cost, complex management

Implications: As CKD management shifts toward personalized and safer therapies, calcium-based products like Phoslo Gelcaps maintain relevance, especially in early-stage CKD.

Regulatory Landscape

• FDA / EMA Guidelines: Emphasize phosphate control to prevent vascular calcification.
• Reimbursement Policies: Favor cost-effective medications; differentials in coverage influence prescribing patterns.
• Quality Standards: Focus on stability, bioavailability, and packaging, notably in Gelcaps formulations where consistency is critical.

Market Share and Pricing

Formulation	Market Share (2022)	Average Price (USD/unit)	Patent Status
Phoslo Gelcaps	50%	0.50 - 1.00	Patent expired in 2022, generics available
Sevelamer (Renvela)	35%	1.50 - 3.00	Patented (extended to 2025)
Lanthanum Carbonate (Fosrenol)	15%	2.00 - 4.00	Patent expired in 2022

Financial Trajectory

Revenue Projections and Scenario Modeling

Year	Scenario	Estimated Revenue (USD Millions)	Key Assumptions
2023	Base Case	800	10% market share retention, moderate growth across developing regions
2025	Optimistic	1,200	Expanded access, improved formulation, lower price points due to generics
2027	Conservative	900	Increased competition, slower adoption rate

Cost Structure

Cost Component	Approximate % of Revenue	Notes
Manufacturing	25%	Scale efficiencies, raw material costs
R&D	10%	Focused on formulations, bioavailability improvements
Regulatory & Compliance	5%	Globally differentiated by region
Marketing & Sales	20%	Physician education, penetration
Distribution & Logistics	10%	Especially in emerging markets

Profitability Outlook

Metrics (USD Millions)	2023	2025	2027
Gross Margin	55%	60%	58%
Operating Margin	20%	25%	22%
Net Profit	15%	20%	17%

Note: These figures assume a generic pricing strategy; actual margins depend on patent status, competitive pricing, and regional factors.

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Comparative Analysis: Phoslo Gelcaps Versus Competitors

Parameter	Phoslo Gelcaps	Sevelamer (Renvela)	Lanthanum (Fosrenol)
Formulation	Calcium acetate Gelcaps	Sevelamer Carbonate Tablets	Lanthanum Carbonate Chewable Tablets
Cost per Dose	Lower ($0.50 - $1.00)	Higher ($1.50 - $3.00)	Higher ($2.00 - $4.00)
Side Effect Profile	Mild hypercalcemia, constipation	Less hypercalcemia, GI disturbances	Potential for metal accumulation
Patent Status	Expired as of 2022	Extended until 2025	Patent expired in 2022
Prescribing Preference	Cost-sensitive, first-line in resource-limited settings	Advanced cases, specific indications	Alternative in refractory cases

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Regulatory and Policy Considerations

• Labeling and Indications: Both FDA and EMA recognize calcium acetate for hyperphosphatemia management.
• Reimbursement Trends: Policies increasingly favor generics, influencing pricing strategies.
• Quality Control: Emphasis on bioequivalence studies, especially for formulations like Gelcaps versus powders or liquids.
• Potential for Biosimilars: Minimal, given it’s a small-molecule drug; however, formulations may see biosimilar entries.

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Deepening the Market Perspective

Geographic Breakdown

Region	Predicted Market Share (2022-2027)	Key Factors
North America	40%	Established CKD treatment protocols, reimbursement policies
Europe	25%	Regulatory harmonization, aging population
Asia-Pacific	20%	Growing prevalence, expanding healthcare access
Rest of World	15%	Cost-effective treatments in emerging markets

Demographic & Epidemiological Drivers

• Aging populations sustain long-term demand.
• Rising diabetes and hypertension incidence inflate CKD cases.
• Healthcare infrastructure investments improve access, especially in Asia-Pacific.

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Key Strategic Insights

• Market Penetration: With patent expiration, focus on cost leadership and quality to maintain/reclaim market share.
• Product Differentiation: Innovate in formulations—sustained-release Gelcaps, combination therapies—to improve adherence.
• Geographic Expansion: Target emerging markets with flexible pricing, partnering with regional distributors.
• Regulatory Engagement: Stay ahead of evolving guidelines to optimize labeling and usage recommendations.

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Key Takeaways

• Market Dynamics Favor Growth: The global CKD burden ensures sustained demand, especially in developing economies.
• Competitive Landscape Is Evolving: Patent expiries lead to generic proliferation; differentiation hinges on cost, quality, and formulations.
• Financial Outlook Is Favorable: Projections indicate potential revenue growth in the near term, contingent on strategic positioning.
• Regulatory & Policy Environment Is Key: Navigating reimbursement, quality standards, and regional policies determines market penetration.
• Innovation Is Critical: Formulation advances and combination therapies can differentiate products amid fierce competition.

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FAQs

1. What is the current patent status of Phoslo Gelcaps, and how does it influence the market?
Phoslo Gelcaps' patent expired in 2022, enabling generic manufacturers to produce biosimilar versions, which exert price pressure but also broaden market access. Strategic focus shifts toward quality, cost, and formulation innovation.

2. How does Phoslo Gelcaps compare to other phosphate binders in terms of safety and efficacy?
Phoslo Gelcaps, primarily calcium acetate, are effective at controlling phosphate levels and are cost-effective. However, they carry a risk of hypercalcemia, unlike non-calcium agents such as Sevelamer, which have a safer profile but higher costs.

3. What demographic factors are influencing the demand for Phoslo Gelcaps?
An aging global population with rising CKD, coupled with lifestyle-related diseases like diabetes, increases demand. Developing nations exhibit growing use due to affordability and accessibility.

4. Which regions offer the highest growth potential for Phoslo Gelcaps?
Asia-Pacific and Latin America present significant growth opportunities due to expanding healthcare infrastructure, increasing CKD prevalence, and cost considerations favoring calcium-based binders.

5. What are the key challenges facing investment in Phoslo Gelcaps?
Patent expiry reducing exclusivity, intensified competition from non-calcium binders, regional regulatory variations, and price sensitivity in emerging markets pose challenges.

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References

[1] International Society of Nephrology. The Global CKD Report 2022.
[2] MarketsandMarkets. Phosphate Binders Market by Product, End-User, and Region — Global Forecast to 2027.
[3] U.S. Food and Drug Administration. Phosphate Binders Guidance Document, 2021.
[4] European Medicines Agency. Pharmacovigilance and Post-Authorization Data, 2022.