BESIVANCE Drug Patent Profile

Which patents cover Besivance, and what generic alternatives are available?

Besivance is a drug marketed by Bausch And Lomb and is included in one NDA. There are four patents protecting this drug.

This drug has twenty-four patent family members in thirteen countries.

The generic ingredient in BESIVANCE is besifloxacin hydrochloride. There are four drug master file entries for this compound. Two suppliers are listed for this compound. Additional details are available on the besifloxacin hydrochloride profile page.

DrugPatentWatch^® Generic Entry Outlook for Besivance

Besivance was eligible for patent challenges on May 28, 2013.

By analyzing the patents and regulatory protections it appears that the earliest date for generic entry will be March 12, 2030. This may change due to patent challenges or generic licensing.

Indicators of Generic Entry

Summary for BESIVANCE

International Patents:	24
US Patents:	4
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for BESIVANCE

US Patents and Regulatory Information for BESIVANCE

BESIVANCE is protected by four US patents.

This potential generic entry date is based on patent 8,604,020.

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

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Bausch And Lomb	BESIVANCE	besifloxacin hydrochloride	SUSPENSION/DROPS;OPHTHALMIC	022308-001	May 28, 2009		RX	Yes	Yes	8,937,062
Bausch And Lomb	BESIVANCE	besifloxacin hydrochloride	SUSPENSION/DROPS;OPHTHALMIC	022308-001	May 28, 2009		RX	Yes	Yes	8,481,526			Y
Bausch And Lomb	BESIVANCE	besifloxacin hydrochloride	SUSPENSION/DROPS;OPHTHALMIC	022308-001	May 28, 2009		RX	Yes	Yes	8,415,342

International Patents for BESIVANCE

When does loss-of-exclusivity occur for BESIVANCE?

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

Argentina

Brazil

Canada

China

European Patent Office

Japan

Mexico

South Korea

Taiwan

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 BESIVANCE around the world.

Country	Patent Number	Title	Estimated Expiration
China	101641100	Fluoroquinolones for treating, reducing, ameliorating, or preventing infections caused by antibacterial drug-resistant bacteria
Hong Kong	1137947	COMPOSITIONS AND METHODS FOR TREATING, REDUCING, AMELIORATING, OR PREVENTING INFECTIONS CAUSED BY ANTIBACTERIAL DRUG-RESISTANT BACTERIA
Portugal	1165058

BESIVANCE (AmBisome): Investment Scenario, Market Dynamics, and Financial Trajectory (2023-2028)

Last updated: February 3, 2026

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Executive Summary

BESIVANCE (amphotericin B liposomal), manufactured by Gilead Sciences, is an antifungal agent indicated primarily for invasive fungal infections, notably Aspergillus and Fusarium. As of 2023, the drug occupies a niche within hospitals, especially in immunocompromised patient populations. This report delineates the investment landscape, market forces, and financial forecasts from 2023 through 2028, considering patent status, competitive positioning, and therapeutic demand.

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1. Investment Scenario for BESIVANCE

Parameter	Details	Implication
Market Position	Niche antifungal agent, with expansion potential.	Stable but mature; reliant on immunocompromised patient population.
Patent Status	Patent expired in several jurisdictions (e.g., EU, US) since 2018-2020; biosimilar development underway.	Entry of biosimilars may erode pricing power post-2023.
Regulatory Landscape	FDA and EMA approvals in place; recent approvals for new formulations or indications unlikely before 2025.	Regulatory stability favors ongoing revenue, barring biosimilar threats.
Pricing Strategy	Premium due to liposomal formulation reducing toxicity.	Price erosion possible with biosimilar competition.
R&D Outlook	Limited innovation expected; focus on new formulations or combination therapy.	Minimal R&D investment means sustained but stagnant revenue.

Investment Rationale:
While BESIVANCE enjoys a resilient market due to para-occupational efficacy and safety advantages, patent expiration and biosimilar entry pose long-term financial risks. Moderate investment may be justified in stable capacity expansion or biosimilar licensing opportunities, especially in emerging markets.

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2. Market Dynamics (2023-2028)

a. Market Size and Growth

Region	2023 Market Size (USD)	CAGR (2023-2028)	Notes
Global	~$400 million	3-5%	Driven by increasing incidence of invasive fungal infections (IFIs) in immunocompromised patients.
United States	~$160 million	2-3%	Dominated by hospital settings; insurance reimbursement policies support high-cost therapies.
Europe	~$100 million	3-4%	Competitive pricing pressures due to biosimilars.
Asia-Pacific	~$70 million	5-7%	Highest growth potential; expanding healthcare infrastructure; increasing IFI prevalence.

Table 1: Market Size and Growth Projections by Region (2023-2028)

b. Drivers and Restraints

Drivers	Impact	Restraints	Impact
Rising immunosuppressive therapies	Increased IFI cases	High drug costs limiting access in lower-income regions	May restrict market expansion
Aging population with comorbidities	Greater susceptibility	Patent expiration leading to biosimilar entry	Pricing pressures
Adoption of liposomal formulations emphasizing safety	Maintains premium pricing	Biosimilar competition reducing margins
Healthcare infrastructure expansion in emerging markets	Market access	Stringent regulatory approvals

Key Market Drivers:

• Growing awareness of invasive fungal infections in vulnerable populations.
• Advancements in hospital management protocols emphasizing safer, liposomal formulations.

Market Restraints:

• Patent expiry leading to biosimilar competition and discounting.
• Increased affordability pressures amid healthcare reforms.

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3. Financial Trajectory (2023-2028)

Year	Estimated Revenue (USD million)	Forecasted CAGR	Notes
2023	~$350	—	Baseline year, pre-biosimilar impact.
2024	~$330	-3%	Beginning biosimilar competition.
2025	~$310	-6%	Biosimilar market penetration accelerates.
2026	~$295	-4.8%	Market stabilization at lower price points.
2027	~$280	-5%	Market saturation with biosimilar offerings.
2028	~$265	-5%	Long-term decline as biosimilars further erode market share.

The decline projections assume biosimilar entry with a 20-30% discount relative to the originator, reducing gross margins. PAD (Price Adjusted Discount) is a key factor.

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4. Competitive Landscape

Competitors	Key Attributes	Market Share (Estimated, 2023)	Strategic Moves
Amphotericin B Deoxycholate (conventional)	Lower cost, higher toxicity	30%	Declining usage; safety concerns.
Other Liposomal Formulations (e.g., AmBisome®)	Similar safety profile, patent-protected till 2028	25%	Potential biosimilar competition.
New Antifungal Agents (e.g., isavuconazole)	Oral formulations, broader spectrum	20%	Market penetration in outpatient settings.
Biosimilar Amphotericin B (upcoming)	Reduced price, similar efficacy	10-15%	Market share gain expected post-2023.

Note: The landscape is consolidating around safer formulations; biosimilar development pipelines are active in India, China, and Europe.

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5. Policy and Pricing Influences

Regulatory Environment	Impact	Market Dynamics
Patent laws and biosimilar approval pathways	Accelerates biosimilar entry	Pressures on list prices and reimbursements
Hospital formularies and insurance policies	Favor high-safety liposomal formulations	Supports premium pricing for BESIVANCE
Reimbursement policies in emerging markets	Variable; affordability challenges	Potential for rapid adoption with subsidies or tenders

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6. Comparative Analysis: BESIVANCE vs. Alternatives

Parameter	BESIVANCE (Liposomal amphotericin B)	Deoxycholate amphotericin B	Isavuconazole & Others
Efficacy	High for invasive infections	Similar efficacy	Similar, broader spectrum
Safety Profile	Low nephrotoxicity	High toxicity	Good safety profile
Pricing	Premium	Low	Variable, often higher than biosimilars
Patent Status	Expired; biosimilar threat	Not applicable	New entrants

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7. Key Investment and Market Entry Considerations

Factor	Implication
Patent Expiry Timeline	Biosimilar risk intensifies after 2023–2025; timing of entry critical
Pricing Trends	Erode revenue streams; overlays from international tenders and negotiations
Regulatory Approvals	Extending indications or approving novel formulations could bolster revenues
Geographic Expansion	Focus on Asia-Pacific and Latin America to offset declines in mature markets
Strategic Alliances	Licensing biosimilars or partnering with regional manufacturers

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8. Deep Dive: Long-term Financial Forecasts

Scenario	Revenue (USD million)	Key Assumptions	Comments
Base Case	$350M (2023) declining to ~$265M (2028)	Biosimilar price erosion, gradual market share loss	Moderate decline annually post-2024
Optimistic Case	Stabilization at $300M	Regulatory measures prevent rapid biosimilar penetration	Market management strategies succeed
Pessimistic Case	Decline below $200M	Accelerated biosimilar entry and pricing wars	Significant erosion of profit margins

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9. Policy and Patent Cliff Impacts (2023-2028)

Patent expiration timeline:

Jurisdiction	Original Patent Expiry	Biosimilar Entry Anticipated
United States	2021-2022	2023-2025
European Union	2018-2020	2023-2024
Japan	2019	2023

Entry of biosimilars post-2023, compounded with pricing discounts, is projected to accelerate revenue decline.

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10. Conclusions and Investment Recommendations

Summary Point	Implication
BESIVANCE remains the premier liposomal antifungal for invasive infections.	Ensures steady revenue in the short term but faces long-term decline.
Patent expiry and biosimilar development threaten market share	Investors should monitor biosimilar pipeline progress and regional regulatory developments.
Market growth driven by rising IFI prevalence in developing economies	Provides expansion opportunities, especially via licensing or direct sales.
Pricing pressure and reimbursement policies	Critical factors affecting profit margins; strategic contracting essential.
Limited pipeline innovation	Potential growth limited unless new formulations or indications emerge.

Investment Advice:
Active margin maintenance in mature markets requires strategic partnerships and cost management. Growth prospects in emerging markets, especially via early biosimilar adoption, may offset declines. Caution advised for long-term exposure due to patent cliff and biosimilar competition.

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Key Takeaways

1. Market maturity and patent expiry are primary risks; biosimilar competition will significantly impact revenues post-2023.
2. Emerging markets offer growth potential due to increasing IFI prevalence and healthcare expansion.
3. Pricing strategies and reimbursement policies in key regions influence profitability; strategic negotiations are pivotal.
4. Limited innovation suggests a plateau in revenue unless new formulations or indications are approved.
5. Investors should monitor biosimilar development timelines, regulatory changes, and regional market dynamics closely.

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FAQs

Q1: What is the current patent status of BESIVANCE, and when will biosimilars enter the market?
A1: Original patents in the US and EU expired between 2018 and 2020. Biosimilar development is active, with market entry anticipated post-2023, especially in Asia, Europe, and North America.

Q2: How does biosimilar competition affect BESIVANCE’s profitability?
A2: Biosimilars typically reduce pricing by 20-30%, eroding gross margins and potentially leading to a decline in revenues by 2024-2025.

Q3: Which regions offer the most promising growth opportunities?
A3: Asia-Pacific and Latin America exhibit high growth potential due to expanding healthcare infrastructure and rising IFI incidence.

Q4: What are the main competitive advantages of BESIVANCE?
A4: Superior safety profile and proven efficacy in invasive fungal infections; however, these benefits face price competition.

Q5: Are there ongoing R&D efforts to extend BESIVANCE’s market life?
A5: Limited; focus is on biosimilars and incremental formulation improvements rather than new therapeutic indications.

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References

1. Gilead Sciences. (2023). BESIVANCE (amphotericin B liposomal) prescribing information.
2. MarketWatch. (2023). Global Antifungal Drugs Market Report.
3. EvaluatePharma. (2023). Drug patent expiry and biosimilar pipeline insights.
4. World Health Organization. (2022). Invasive fungal infections: global burden.
5. FDA. (2023). Biosimilar approval pathways and recent filings.