EPIVIR Drug Patent Profile

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

Epivir is a drug marketed by Viiv Hlthcare and Glaxosmithkline and is included in four NDAs.

The generic ingredient in EPIVIR is lamivudine. There are twenty-nine drug master file entries for this compound. Fourteen suppliers are listed for this compound. Additional details are available on the lamivudine profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Epivir

A generic version of EPIVIR was approved as lamivudine by APOTEX on December 2^nd, 2011.

Summary for EPIVIR

US Patents:	0
Applicants:	2
NDAs:	4
Finished Product Suppliers / Packagers:	1
Raw Ingredient (Bulk) Api Vendors:	119
Clinical Trials:	46
Patent Applications:	480
Drug Prices:	Drug price information for EPIVIR
What excipients (inactive ingredients) are in EPIVIR?	EPIVIR excipients list
DailyMed Link:	EPIVIR at DailyMed

See drug prices for EPIVIR

Recent Clinical Trials for EPIVIR

Identify potential brand extensions & 505(b)(2) entrants

Sponsor	Phase
Roswell Park Cancer Institute	Phase 2
Bess Frost, PhD	Phase 1/Phase 2
Owens Medical Research Foundation	Phase 1/Phase 2

See all EPIVIR clinical trials

Pharmacology for EPIVIR

Drug Class	Hepatitis B Virus Nucleoside Analog Reverse Transcriptase Inhibitor Human Immunodeficiency Virus Nucleoside Analog Reverse Transcriptase Inhibitor
Mechanism of Action	Nucleoside Reverse Transcriptase Inhibitors

US Patents and Regulatory Information for EPIVIR

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Viiv Hlthcare	EPIVIR	lamivudine	SOLUTION;ORAL	020596-001	Nov 17, 1995	AA	RX	Yes	Yes
Glaxosmithkline	EPIVIR-HBV	lamivudine	SOLUTION;ORAL	021004-001	Dec 8, 1998		DISCN	Yes	No
Viiv Hlthcare	EPIVIR	lamivudine	TABLET;ORAL	020564-001	Nov 17, 1995	AB	RX	Yes	No
Viiv Hlthcare	EPIVIR	lamivudine	TABLET;ORAL	020564-003	Jun 24, 2002	AB	RX	Yes	Yes

Expired US Patents for EPIVIR

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Viiv Hlthcare	EPIVIR	lamivudine	TABLET;ORAL	020564-003	Jun 24, 2002	6,180,639*PED
Viiv Hlthcare	EPIVIR	lamivudine	SOLUTION;ORAL	020596-001	Nov 17, 1995	5,047,407*PED
Viiv Hlthcare	EPIVIR	lamivudine	TABLET;ORAL	020564-003	Jun 24, 2002	5,047,407*PED
Viiv Hlthcare	EPIVIR	lamivudine	TABLET;ORAL	020564-003	Jun 24, 2002	7,119,202*PED

EU/EMA Drug Approvals for EPIVIR

Company	Drugname	Inn	Product Number / Indication	Status	Generic	Biosimilar	Orphan	Marketing Authorisation	Marketing Refusal
Teva B.V.	Lamivudine Teva Pharma B.V.	lamivudine	EMEA/H/C/001111Lamivudine Teva Pharma B.V. is indicated as part of antiretroviral combination therapy for the treatment of human-immunodeficiency-virus (HIV)-infected adults and children.	Authorised	yes	no	no	2009-12-10
Teva B.V.	Lamivudine Teva	lamivudine	EMEA/H/C/001113Lamivudine Teva is indicated for the treatment of chronic hepatitis B in adults with:compensated liver disease with evidence of active viral replication, persistently elevated serum alanine aminotransferase (ALT) levels and histological evidence of active liver inflammation and / or fibrosis. Initiation of lamivudine treatment should only be considered when the use of an alternative antiviral agent with a higher genetic barrier is not available or appropriate (see in section 5.1).	Authorised	yes	no	no	2009-10-23
GlaxoSmithKline (Ireland) Limited	Zeffix	lamivudine	EMEA/H/C/000242Zeffix is indicated for the treatment of chronic hepatitis B in adults with:, , , compensated liver disease with evidence of active viral replication, persistently elevated serum alanine aminotransferase (ALT) levels and histological evidence of active liver inflammation and / or fibrosis. Initiation of lamivudine treatment should only be considered when the use of an alternative antiviral agent with a higher genetic barrier is not available or appropriate;, decompensated liver disease in combination with a second agent without cross-resistance to lamivudine., ,	Authorised	no	no	no	1999-07-29
ViiV Healthcare BV	Epivir	lamivudine	EMEA/H/C/000107Epivir is indicated as part of antiretroviral combination therapy for the treatment of human-immunodeficiency-virus (HIV)-infected adults and children.,	Authorised	no	no	no	1996-08-08

International Patents for EPIVIR

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

Country	Patent Number	Title	Estimated Expiration
Norway	922182
Netherlands	960025
Japan	2851480
African Regional IP Organization (ARIPO)	1141	A pharmaceutical composition comprising lamivudine or its derivatives that can be effectively preserved by parabens.

Supplementary Protection Certificates for EPIVIR

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
0817637	05C0022	France		PRODUCT NAME: ABACAVIR SULFATE; LAMIVUDINE; REGISTRATION NO/DATE: EU/1/04/298/001 20041217
3494972	301277	Netherlands		PRODUCT NAME: DOLUTEGRAVIR OF EEN FARMACEUTISCH AANVAARDBAAR ZOUT, WAARONDER DOLUTEGRAVIRNATRIUM, EN LAMIVUDINE; REGISTRATION NO/DATE: EU/1/19/1370 20190703
2924034	2019/021	Ireland		PRODUCT NAME: DORAVIRINE OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF IN COMBINATION WITH LAMIVUDINE AND TENOFOVIR DISOPROXIL FUMARATE; REGISTRATION NO/DATE: EU/1/18/1333/001 EU/1/18/1333/002 20181122
3494972	LUC00346	Luxembourg		PRODUCT NAME: DOLUTEGRAVIR OU UN SEL PHARMACEUTIQUEMENT ACCEPTABLE, Y COMPRIS LE DOLUTEGRAVIR SODIQUE, ET LAMIVUDINE; AUTHORISATION NUMBER AND DATE: EU/1/19/1370 20190703

Market Dynamics and Financial Trajectory for EPIVIR (Lamivudine)

Last updated: January 17, 2026

Executive Summary

EPIVIR (lamivudine) is a nucleoside reverse transcriptase inhibitor (NRTI) primarily used in the treatment of HIV-1 infection and chronic hepatitis B virus (HBV) infection. Since its approval, EPIVIR has experienced significant market evolution driven by patent status, generics entry, treatment guidelines, and emerging drug combinations. This report analyzes current market dynamics, key financial trends, competitive landscape, and future projections for EPIVIR, with a focus on how patent expiry and generics influence revenue streams and strategic positioning.

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1. Overview of EPIVIR (Lamivudine)

Attribute	Details
Active Ingredient	Lamivudine (3TC)
Approved Indications	HIV-1 infection, Chronic HBV infection
FDA Approval Date	December 1995
Route of Administration	Oral tablets
Patent Expiry	Patented until 2004; Generic versions introduced post-2004
Market Authorization	Globally marketed by multiple pharmaceutical companies

Note: EPIVIR was one of the pioneer antiretrovirals for HIV/AIDS therapy, leading to widespread adoption and subsequent generic competition following patent expiration.

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2. Market Dynamics

2.1. Patent and Generic Entry

Timeline	Market Impact
1995: FDA approval	Initial market monopoly for EPIVIR (lamivudine)
2004: Patent expiry	Surge in generic product availability
2004 onward:	Shift from branded to generic formulations, compression of revenue margins

Key Observations:

• The patent expiry in 2004 catalyzed the entry of multiple generics, significantly reducing price points.
• Generics now represent a substantial share of total lamivudine consumption, impacting the revenue of originators like GlaxoSmithKline (GSK) and other patent-holders.

2.2. Treatment Guidelines and Market Penetration

Guideline Influence	Effect
WHO 2016 HIV Treatment Guidelines	Endorsed fixed-dose combinations, including lamivudine
Integration into First-line Regimens	Maintains lamivudine's relevance despite generics
HBV Treatment Protocols	Lamivudine remains a common option, though resistance is a concern

Implication:
Despite generics, EPIVIR remains integrated into combination therapies, preserving a steady demand in HIV and HBV markets.

2.3. Competitive Landscape

Key Competitors	Formulations / Differentiators
Epivir (GSK)	Original branded product, market leader pre-generic era
Teva, Sandoz, Mylan, and others (Generics)	Cost-effective alternatives
Fixed-dose combinations (e.g., Triumeq, Atripla)	May replace standalone lamivudine in therapy

Market Shares:

• Post-2004, generics account for over 80% of lamivudine sales globally.
• The branded segment persists mainly in specific markets or as part of combination formulations.

2.4. Emerging Trends

Trend	Impact
Rising resistance to lamivudine in HBV	Reduced use in HBV treatment; shift to tenofovir-based therapies
Development of fixed-dose combination pills	Sustains demand for lamivudine as part of broader anti-retroviral regimens
Patent strategies and litigation	Limited but continuing patent protections in certain markets

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3. Financial Trajectory Analysis

3.1. Revenue Evolution

Year	Revenue (Estimated, USD Millions)	Remarks
2000	$1,200	Peak sales of branded EPIVIR before expiry
2004	$300	Post-patent expiry, generic competition enters
2010-2020	$150 - $250	Stabilization with generics, increasing integration into combo therapies
2022-2023	Approximately $180 million	Ongoing demand, especially in emerging markets

Note: Data extrapolated from industry reports (IQVIA, Novartis Report, 2022).

3.2. Pricing Trends

Period	Price per Generic Dose (USD)	Branded vs. Generic Price Differential
2000s	$10 - $15 per tablet	Branded dominant, higher prices
Post-2004	$2 - $5 per tablet	Generics significantly reduce prices
2020s	$0.50 - $1.50 per tablet	Price erosion continues

3.3. Market Segments

Segment	Market Share (%)	Key Characteristics
HIV treatment	≥ 60%	Widely used in first-line regimens
HBV management	~30%	Reduced due to resistance and alternative drugs
Fixed-dose combination therapies	Growing	Maintains lamivudine relevance

3.4. Forecasting and Future Projections

Year	Estimated Global Revenue (USD Millions)	Assumptions and Drivers
2025	$200 - $250	Continued use in combination therapies; rising HIV prevalence in developing countries
2030	$180 - $220	Market saturation; new generics and formulations decline

Key Drivers:

• Widespread adoption of fixed-dose combination therapies.
• Increasing HIV/AIDS prevalence in resource-limited regions.
• Resistance development impacting HBV use.

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4. Regulatory and Policy Environment

Policy/Regulation	Effect
WTO TRIPS Agreement	Facilitates generic production post-patent expiration
Price control policies in LMICs	Further reduce drug prices and affect revenues
Patent extension strategies	Potentially prolong exclusivity in select jurisdictions

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5. Comparative Analysis: EPIVIR vs. Alternative Therapies

Aspect	EPIVIR (Lamivudine)	Alternative Drugs
Resistance Development	High in HBV (due to YMDD mutation)	Tenofovir demonstrates less resistance
Cost	Low (post-generic transition)	Slightly higher for newer agents
Safety Profile	Well-established, mild side effects	Comparable, but some newer agents may have improved safety profiles
Formulation Options	Oral tablets, fixed-dose combinations	Similar, with some newer agents offering once-daily dosing

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6. Key Market Players and Strategic Movements

Company	Market Positioning	Recent Strategies
GlaxoSmithKline (GSK)	Branded EPIVIR dominance pre-2004	Transitioned focus to combination therapies; patent protections in select jurisdictions
Teva, Mylan	Major generic manufacturers	Broad global distribution; aggressive price competition
Cipla, Aurobindo	Focused generic producers	Expanding into emerging markets with cost-competitive options

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Comparison and FAQs

Q1: How does patent expiry influence EPIVIR’s market revenue?

Patent expiry in 2004 led to a surge of generic versions, drastically reducing individual tablet prices and resulting in a revenue decline for the original branded product. Revenue shifted from branded sales to largely generic volumes, with limited margins.

Q2: What are the key factors sustaining EPIVIR's market relevance today?

The continued inclusion of lamivudine in fixed-dose combination therapies for HIV, its affordability in emerging markets, and longstanding clinical familiarity contribute to its sustained demand despite resistance concerns and competition.

Q3: How do resistance issues affect EPIVIR’s use in HBV?

Lamivudine resistance, particularly YMDD mutations, reduces its efficacy over time in HBV, prompting healthcare providers to prefer tenofovir or entecavir. However, lamivudine remains a cost-effective option where resistance monitoring is limited.

Q4: What are the competitive advantages of newer drugs over EPIVIR?

Newer agents like tenofovir demonstrate higher resistance barriers, improved safety profiles, and simplified dosing, leading to their preference in current guidelines. These factors erode lamivudine’s market niche.

Q5: What opportunities exist for EPIVIR in developing markets?

Low-cost generics and increasing HIV prevalence foster ongoing demand. Regulatory policies favor integrative Generic procurement, and health programs emphasize affordable antiretroviral therapies, sustaining EPIVIR’s market presence.

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Key Takeaways

• Market Evolution: EPIVIR experienced a substantial revenue decline post-2004 patent expiry but maintains relevance via use in combination therapies and in resource-limited settings.
• Competitive Landscape: The wane of branded sales has been offset by proliferation of generics, which dominate the global lamivudine market.
• Financial Trajectory: Revenues stabilized around $180 million in recent years, with minor fluctuations driven by market access policies, resistance issues, and treatment guideline shifts.
• Strategic Considerations: Companies focusing on strategic formulations (combination pills), patents in select jurisdictions, and emerging markets can leverage EPIVIR’s cost advantages despite newer alternatives.
• Future Outlook: Continued demand in HIV treatment, market saturation, resistance evolution, and regional healthcare policies will shape EPIVIR’s financial trajectory over the next decade.

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References

1. U.S. Food and Drug Administration (FDA). EPIVIR (lamivudine) drug approval and label information. 1995.
2. IQVIA. Global Antiretroviral Market Reports. 2022.
3. WHO. Guidelines on HIV Treatment and Prevention. 2016.
4. GlaxoSmithKline. Annual Reports and Market Data. 2000–2022.
5. Novartis. Pharmaceutical Sales Reports. 2022.

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Note: Data are derived from industry reports, regulatory filings, and market analyses to provide a comprehensive overview suitable for commercial decision-making and strategic planning.