LASTACAFT Drug Patent Profile

Which patents cover Lastacaft, and when can generic versions of Lastacaft launch?

Lastacaft is a drug marketed by Abbvie and is included in one NDA. There are two patents protecting this drug and one Paragraph IV challenge.

This drug has forty-six patent family members in thirty countries.

The generic ingredient in LASTACAFT is alcaftadine. There are six drug master file entries for this compound. Four suppliers are listed for this compound. Additional details are available on the alcaftadine profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Lastacaft

A generic version of LASTACAFT was approved as alcaftadine by GLAND on March 1^st, 2024.

Summary for LASTACAFT

International Patents:	46
US Patents:	2
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for LASTACAFT

Paragraph IV (Patent) Challenges for LASTACAFT

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
LASTACAFT	Ophthalmic Solution	alcaftadine	0.25%	022134	1	2014-07-30

US Patents and Regulatory Information for LASTACAFT

LASTACAFT 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
Abbvie	LASTACAFT	alcaftadine	SOLUTION/DROPS;OPHTHALMIC	022134-001	Jul 28, 2010		OTC	Yes	Yes	8,664,215
Abbvie	LASTACAFT	alcaftadine	SOLUTION/DROPS;OPHTHALMIC	022134-001	Jul 28, 2010		OTC	Yes	Yes	10,617,695		Y

International Patents for LASTACAFT

When does loss-of-exclusivity occur for LASTACAFT?

Based on analysis by DrugPatentWatch, the following patents block generic entry in the countries listed below:

Argentina

Costa Rica

Uruguay

Generics may enter earlier, or later, based on new patent filings, patent extensions, patent invalidation, early generic licensing, generic entry preferences, and other factors.

See the table below for additional patents covering LASTACAFT around the world.

Country	Patent Number	Title	Estimated Expiration
Japan	2013144703	OCULAR ALLERGY TREATMENT
Peru	20080053	COMPOSICIONES OFTALMICAS DE ALCAFTADINA
Finland	935556
Mexico	9202856	DERIVADOS DE IMIDAZO [1,2-B][3]BENZOAZEPINA, COMPOSICIONES Y METODO DE USO.
Taiwan	218381

Investment Scenario, Market Dynamics, and Financial Trajectory for LASTACAFT

Last updated: February 3, 2026

Executive Summary

LASTACAFT (alcaftadine ophthalmic solution) is a prescription antihistamine used primarily to treat allergic conjunctivitis. With FDA approval since 2015, it occupies a niche within the antihistamine segment of ophthalmic therapies. This report assesses the investment landscape, market drivers and constraints, competitive positioning, and financial outlook for LASTACAFT from a strategic business perspective. Key insights include its market penetration potential, competitive threats, regulatory environment, and long-term revenue projections.

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Overview of LASTACAFT and Its Market Position

Aspect	Details
Therapeutic Class	Ophthalmic antihistamine
Approved Indication	Allergic conjunctivitis (seasonal/perennial)
FDA Approval	2015
Manufacturer	Bausch + Lomb (a division of Bausch Health)
Formulation	0.25% alcaftadine ophthalmic solution
Patent & Exclusivity Period	Initially protected until ~2024–2025, but patent cliff approaching
Current Market Share	Approx. 5-8% of the ophthalmic allergy segment (as of 2022)

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Market Dynamics

What is the market size and growth outlook for ophthalmic antihistamines?

Metric	2022 Figures	CAGR (2022-2027)	Notes
Global ophthalmic allergy drug market	~$1.8 billion	4.2%	Driven by increasing prevalence of allergic conjunctivitis
US ophthalmic antihistamines	~$600 million	4.5%	Elevated growth due to rising awareness, OTC availability of certain agents, and innovation
Major players	Bausch + Lomb, Alcon, Johnson & Johnson		Dominance of established companies limits new entrant market share

What are the primary market drivers?

• Rising prevalence of allergic conjunctivitis. Estimates indicate 30 million Americans affected annually.[1]
• Growing geriatric population predisposed to allergic eye conditions.
• Increasing urbanization and pollution contribute to allergic disease burden.
• Healthcare access improvements and ongoing physician education increase prescriptions.
• Product differentiation, including improved safety profiles or customized delivery mechanisms, enhances positioning.

What are the market constraints?

• Patent expiration risk. LASTACAFT’s basic patent is nearing expiration, opening generic competition.
• Price erosion. As generics enter, market pricing pressures intensify.
• Limited clinical differentiation. Many antihistamines share similar efficacy and safety profiles.
• OTC competition. Some antihistamines are available over-the-counter, reducing prescribed drug demand.

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Competitive Landscape

Competitor	Product Name	Market Share (2022)	Unique Selling Proposition
Bausch + Lomb (LASTACAFT)	LASTACAFT	5-8%	Preserved reputation, established safety, once-daily dosing
Alcon	Zaditor (ketotifen)	10-12%	OTC availability, rapid onset
Johnson & Johnson	Claritin Eye (ketotifen fumarate)	8-10%	Market presence, OTC status
Roche	Patanol (olopatadine)	4-6%	Well-established, prescription-based

Competitive differentiation points:

• Lastacaft benefits from a dedicated ophthalmology prescription base, with physician preference for branded agents.
• Generics pose a significant threat; generic alcaftadine tablets or solutions could erode revenue.
• Innovation and pipeline development remain key for maintaining market share.

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Financial Trajectory and Investment Outlook

Revenue Projections (2023–2027)

Year	Revenue Estimate	Assumptions and Drivers
2023	~$90 million	Market saturation, patent expiry on the horizon, moderate growth
2024	~$75 million	Patent cliff accelerates, increased generic competition
2025	~$50 million	Significant generic penetration begins
2026	~$35 million	Estimated decline stabilizes, generic market dominance
2027	~$25 million	Continued erosion, dependence on legacy prescriber base

Note: These are approximations based on market trends, patent expiry timelines, and generic entry patterns.

Revenue Drivers

• Existing prescription base—steady until patent expiry.
• New formulations or delivery methods could sustain some revenues.
• Expansion into emerging markets offers potential but is constrained by regulatory hurdles.
• Strategic partnerships with specialty distributors may influence volumes.

Cost Structures

Cost Component	% of Revenue	Comments
R&D	~10%	Focused on pipeline, formulation improvements
Manufacturing & Supply	15-20%	Economies of scale critical post-patent
Marketing & Promotion	20-25%	Physician education, awareness campaigns
General & Administrative	10-15%	Overheads

Profitability Outlook

• Pre-patent expiry, high margins (~50% gross margin) are typical.
• Post-patent, margins may fall below 20% unless differentiated or embedded in integrated product packages.

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Regulatory and Patent Considerations

Aspect	Details	Impact on Investment
Patent Status	Expiring in 2024–2025 for key formulations	Increase in generic entry and price erosion
Regulatory Pathways	Existing label approvals; potential for label extensions or new indications	Short-term opportunities for lifecycle management
Market Exclusivity	Post-patent exclusivity limited; supplementary patents unlikely to block generics	Heightened risk of revenue decline post-2024
International Approvals	Variable; some markets pending approvals	Opportunity for expansion, contingent upon regulatory hurdles

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Comparative Analysis

Aspect	LASTACAFT (alcaftadine)	Competitive Agents
Patent Life Remaining	~1–2 years (2024–2025)	Patanol (1990s), Zaditor (2000s); generic versions post-expiry
Market Niche	Prescription-only	Both OTC and prescription
Efficacy Profile	Similar to alternatives	Non-inferior; safety profiles comparable
Pricing Strategy	Premium / branded	OTC generics undercut branded prices
Innovation Layer	Established but no major recent improvements	Continuous innovation underway; pipeline investments vital

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Strategic Recommendations for Investors

• Monitor patent expiry timelines closely; revenue is expected to decline sharply after 2024–2025.
• Explore diversification opportunities, such as pipeline assets or adjunct formulations.
• Evaluate the entry of generics as a primary risk; consider licensing or partnership options for patent extensions.
• Assess markets beyond the U.S., particularly emerging economies, where patent laws and market dynamics differ.
• Invest in marketing and prescriber education to retain existing prescriber loyalty before generic entry.

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FAQs

Q1: When will LASTACAFT face generic competition?
A1: Patent protections are expected to expire around 2024–2025, after which generic alcaftadine solutions may enter the U.S. market.

Q2: How does LASTACAFT compare against OTC antihistamines?
A2: LASTACAFT offers prescription-strength efficacy with once-daily dosing, whereas OTC agents like Zaditor provide rapid relief but may have differing safety profiles and dosing frequencies.

Q3: What are the main alternatives in allergic conjunctivitis treatment?
A3: Alternatives include other antihistamines such as olopatadine (Patanol) and ketotifen (Zaditor), as well as mast cell stabilizers and corticosteroids for severe cases.

Q4: What opportunities exist post-patent expiry?
A4: Opportunities include developing new formulations, leveraging pipeline assets, or entering emerging markets with strategic licensing.

Q5: How significant is LASTACAFT's market share?
A5: As of 2022, LASTACAFT holds approximately 5-8% of the ophthalmic allergy market in the U.S., with growth potential before patent expiration.

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Key Takeaways

• LASTACAFT is a well-established prescription antihistamine for allergic conjunctivitis with limited growth prospects approaching patent expiry.
• The impending patent cliff (2024–2025) will significantly expose the product to generic competition, likely leading to revenue declines.
• Market dynamics favor OTC alternatives and generics; differentiation strategies are critical for sustained revenue.
• Diversification through pipeline assets or international markets can mitigate risks associated with patent expiration.
• Strategic timing around patent expiry, formulation innovation, and partnerships will determine long-term investment success.

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References

1. American Academy of Ophthalmology. "Allergic Conjunctivitis." 2022.
2. MarketWatch. "Global Ophthalmic Allergy Market Analysis & Trends." 2022.
3. U.S. FDA. "Lastacaft (alcaftadine) Label Information," 2015.
4. IQVIA. "Pharmaceutical Market Data and Insights," 2022.
5. Bausch + Lomb. "Company Reports and Pipeline," 2023.

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[End of Report]