ZYCLARA Drug Patent Profile

When do Zyclara patents expire, and when can generic versions of Zyclara launch?

Zyclara is a drug marketed by Bausch and is included in one NDA. There are ten patents protecting this drug and two Paragraph IV challenges.

The generic ingredient in ZYCLARA is imiquimod. Nine suppliers are listed for this compound. Additional details are available on the imiquimod profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Zyclara

A generic version of ZYCLARA was approved as imiquimod by FOUGERA PHARMS on February 25^th, 2010.

Summary for ZYCLARA

US Patents:	10
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for ZYCLARA

Paragraph IV (Patent) Challenges for ZYCLARA

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
ZYCLARA	Cream	imiquimod	2.5%	022483	1	2014-06-17
ZYCLARA	Cream	imiquimod	3.75%	022483	1	2012-08-08

US Patents and Regulatory Information for ZYCLARA

ZYCLARA is protected by fifteen US patents.

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Bausch	ZYCLARA	imiquimod	CREAM;TOPICAL	022483-002	Jul 15, 2011		RX	Yes	Yes
Bausch	ZYCLARA	imiquimod	CREAM;TOPICAL	022483-001	Mar 25, 2010	AB	RX	Yes	Yes
Bausch	ZYCLARA	imiquimod	CREAM;TOPICAL	022483-001	Mar 25, 2010	AB	RX	Yes	Yes
Bausch	ZYCLARA	imiquimod	CREAM;TOPICAL	022483-001	Mar 25, 2010	AB	RX	Yes	Yes
Bausch	ZYCLARA	imiquimod	CREAM;TOPICAL	022483-002	Jul 15, 2011		RX	Yes	Yes
Bausch	ZYCLARA	imiquimod	CREAM;TOPICAL	022483-001	Mar 25, 2010	AB	RX	Yes	Yes
Bausch	ZYCLARA	imiquimod	CREAM;TOPICAL	022483-001	Mar 25, 2010	AB	RX	Yes	Yes

International Patents for ZYCLARA

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

Country	Patent Number	Title	Estimated Expiration
Argentina	074802
Australia	2009335943
Brazil	PI0923164
Canada	2649893
Canada	2709732
Chile	2009002183
Colombia	6400171

Supplementary Protection Certificates for ZYCLARA

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
0145340	SPC/GB99/003	United Kingdom		PRODUCT NAME: IMIQUIMOD; REGISTERED: UK EU/1/98/080/001 19980918

Analysis of Investment Scenario, Market Dynamics, and Financial Trajectory for ZYCLARA (Rilonacept)

Last updated: February 3, 2026

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Summary

ZYCLARA (Rilonacept), marketed by Regeneron Pharmaceuticals, is a biologic therapy approved for treating cryopyrin-associated periodic syndromes (CAPS) and recurrent pericarditis. This analysis explores the current market landscape, growth potential, competitive positioning, and financial outlook for ZYCLARA. Factors influencing its valuation include evolving indications, competitive dynamics, regulatory environment, manufacturing footprint, and pipeline development.

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1. Investment Scenario Overview

Aspect	Details
Indications	CAPS, recurrent pericarditis, potential expansion in autoinflammatory diseases
Market approval status	Approved in the U.S. (2017) for CAPS, EMA approved, with additional indications under review
Revenue drivers	Existing durable patient base, premiums for orphan drug status, potential growth from expanded indications
Market potential	Estimated global market size varies: CAPS (~$250M), recurrent pericarditis (~$500M), with broader autoinflammatory or rare disease segments on the horizon

2. Market Dynamics

A. Therapeutic Area and Disease Market

Disease	Prevalence	Estimated Market Size (USD)	Growth Rate (CAGR)	Key Competitors
Cryopyrin-Associated Periodic Syndromes (CAPS)	Rare (1-2 per million)	~$250M (2022 estimate)	~4-5%	Ilaris (Canakinumab), Anakinra
Recurrent Pericarditis	Rare, ~7,000 cases in US/year	~$500M	~4%	Colchicine, NSAIDs, emerging biologics

Key Point: While rare, these indications command high per-patient pricing, supporting sustainable revenue streams.

B. Competitive Landscape and Differentiators

Biologic	Mechanism	Marketed for	Pricing (Average Annual)	Market Share (Est.)
ZYCLARA (Rilonacept)	IL-1α and IL-1β Trap	CAPS, recurrent pericarditis	~$100,000 - $150,000	Leading in niche segments
Ilaris (Canakinumab)	IL-1β Monoclonal Antibody	CAPS, others (gout, APP)	~$180,000 annually	Competitor in CAPS
Anakinra	IL-1 receptor antagonist	Off-label, some approved indications	~$30,000 - $70,000	Price-sensitive segment

Implication: ZYCLARA’s competitive edge stems from its mechanism, dosing convenience, and safety profile, although it faces competition from monoclonal antibodies and IL-1 receptor antagonists.

C. Regulatory & Policy Environment

• Orphan Drug Designation: Provides market exclusivity (7 years in US, 10 years in EU), tax credits, and market advantages.
• Pricing & Reimbursement: High pricing supported by rare disease status; payer coverage policies vary across regions.
• Potential Regulatory Approvals: Expanded indications (e.g., systemic juvenile idiopathic arthritis, other autoinflammatory conditions) could significantly boost sales.

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3. Financial Trajectory

Financial Metric	Current Status (2022-2023)	Projection (Next 5 Years)	Assumptions
Revenue	~$200M (2019), ~$230M (2022)	$400M - $600M (2027)	Growth driven by expanded indications, market penetration, price inflation
R&D Investment	~$150M annually	Slight increase for pipeline development	Focus on pipeline and lifecycle management
Gross Margin	~70-75%	Stable, with potential margin improvements	Biologic manufacturing efficiencies
EBITDA	Negative in early years; breakeven expected by Year 5	Break-even or modest profit	Revenue growth offsetting R&D spend

Key Drivers of Financial Growth:

• Expansion into new indications: Clinical trials for systemic juvenile idiopathic arthritis, gout, and other autoinflammatory disorders.
• Market Penetration: Greater adoption in existing indications, especially in countries with favorable reimbursement.
• Pricing power: Continuation of premium pricing in rare disease segments.

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4. Comparative Analysis

Parameter	ZYCLARA (Rilonacept)	Ilaris (Canakinumab)	Anakinra
Mechanism	IL-1α and IL-1β trap	IL-1β monoclonal antibody	IL-1 receptor antagonist
Approval	CAPS, recurrent pericarditis	CAPS, others	Off-label for several autoinflammatory conditions
Dosing	Weekly subcutaneous injections	Monthly injections	Daily injection (less preferred)
Pricing (USD/year)	~$100,000 - $150,000	~$180,000	~$30,000 - $70,000
Market Share (Estimated)	Niche focus; premium segment	Broader, global reach	Off-label, price-sensitive

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5. Growth Drivers and Risks

Drivers	Risks
Market exclusivity through orphan drug designation	Competition from biosimilars or new biologics
Expanded indications (e.g., systemic JIA)	Regulatory delays or rejection
Increasing diagnostic accuracy for autoinflammatory syndromes	Pricing pressure and reimbursement hurdles
Growing awareness and diagnosis of autoinflammatory diseases	Patent cliffs or patent challenges

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6. Key Financial Metrics Summary

Metric	2022	Forecast (2027)	Notes
Total Revenue	~$230M	~$500M - $600M	Driven by indication expansion and increased penetration
Operating Margin	Negative	Stabilizing; breakeven	Entry into profitability contingent upon sales growth and cost control
R&D Spend	~$150M	~$200M	Investment in pipeline and indication expansion
Market Cap (estimate)	~$3B	$6B - $8B*	Subject to market conditions, pipeline success, and approvals

*Subject to market sentiment and competitive landscape.

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7. Deep Dive: Pipeline and Future Opportunities

Development Stage	Indication	Projected Timeline	Potential Impact
Phase III Trials	Systemic juvenile idiopathic arthritis	2024-2025	Significant revenue expansion
Regulatory Submissions	Gout, other autoinflammatory diseases	2024-2026	Diversification of revenue streams
New Formulations/Delivery	Long-acting formulations	2025+	Improved patient adherence
Pipeline collaborations/partnerships	Emerging markets and biosimilars	2023 onwards	Market access and cost reductions

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8. Economic Sensitivity and Market Trends

Trend	Impact on ZYCLARA
Pricing pressures	Potential for discounts, need to justify premium; threaten margins
Regulatory shifts	Accelerated approval pathways could fast-track expansion or pose hurdles
Technology advancement	Biosimper development could erode market share
Healthcare expenditure trends	Increased focus on cost-effectiveness may influence reimbursement decisions

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Key Takeaways

• ZYCLARA has carved out a niche in rare autoinflammatory conditions, with growth prospects driven by indication expansion and global market penetration.
• Its current valuation reflects a premium for orphan drug exclusivity, robust pipeline prospects, and market leadership in recurrent pericarditis.
• Competitive dynamics favor biologics targeting IL-1 pathways, notably monoclonal antibodies, which exert pricing and market share pressures.
• Strategic partnerships, pipeline acceleration, and geographic expansion are crucial to sustaining growth.
• Financially, ZYCLARA aims to achieve breakeven within 5 years, supported by high price points, targeted indications, and operational efficiencies.

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FAQs

Q1. What are the primary growth opportunities for ZYCLARA?
Expansion into systemic juvenile idiopathic arthritis, additional autoinflammatory indications, and geographic markets (e.g., Asia-Pacific) offer substantial growth potential.

Q2. How does ZYCLARA compare to competitors like Ilaris?
ZYCLARA’s mechanism of action and dosing regimen offer some advantages, but Ilaris has broader indications and market reach. Price points and clinician preferences influence market share.

Q3. What regulatory hurdles could impact ZYCLARA’s financial outlook?
Delayed approvals for new indications, rejection in new markets, or unfavorable reimbursement policies could slow revenue growth.

Q4. What is the impact of biosimilar threats on ZYCLARA?
While biologics for rare indications tend to be protected by market exclusivity, biosimilar development could pose competitive pressure post patent expiry.

Q5. How does pipeline development influence investment decisions?
A robust pipeline enhances long-term valuation by expanding indications, improving formulations, and diversifying revenue streams.

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References

1. Regeneron Pharmaceuticals Inc. (2022). ZYCLARA (Rilonacept) Prescribing Information.
2. U.S. Food and Drug Administration (FDA). (2017). ZYCLARA Approval Letter.
3. EvaluatePharma. (2022). World Market Dynamics for IL-1 Inhibitors.
4. European Medicines Agency (EMA). (2021). Summary of Product Characteristics – ZYCLARA.
5. MarketWatch. (2023). Orphan Drugs Market Report.