EVOTAZ Drug Patent Profile

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

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

This drug has three hundred and six patent family members in forty-one countries.

The generic ingredient in EVOTAZ is atazanavir sulfate; cobicistat. There are twenty-five drug master file entries for this compound. One supplier is listed for this compound. Additional details are available on the atazanavir sulfate; cobicistat profile page.

DrugPatentWatch^® Generic Entry Outlook for Evotaz

Evotaz was eligible for patent challenges on August 27, 2016.

By analyzing the patents and regulatory protections it appears that the earliest date for generic entry will be October 6, 2032. This may change due to patent challenges or generic licensing.

There have been eight patent litigation cases involving the patents protecting this drug, indicating strong interest in generic launch. Recent data indicate that 63% of patent challenges are decided in favor of the generic patent challenger and that 54% of successful patent challengers promptly launch generic drugs.

Indicators of Generic Entry

Summary for EVOTAZ

International Patents:	306
US Patents:	2
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for EVOTAZ

Paragraph IV (Patent) Challenges for EVOTAZ

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
EVOTAZ	Tablets	atazanavir sulfate; cobicistat	300 mg/150 mg	206353	1	2017-09-13

US Patents and Regulatory Information for EVOTAZ

EVOTAZ is protected by two US patents.

This potential generic entry date is based on patent 10,039,718.

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
Bristol	EVOTAZ	atazanavir sulfate; cobicistat	TABLET;ORAL	206353-001	Jan 29, 2015		RX	Yes	Yes	8,148,374		Y	Y
Bristol	EVOTAZ	atazanavir sulfate; cobicistat	TABLET;ORAL	206353-001	Jan 29, 2015		RX	Yes	Yes	10,039,718		Y

International Patents for EVOTAZ

When does loss-of-exclusivity occur for EVOTAZ?

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

African Regional IP Organization (ARIPO)

Argentina

Australia

Brazil

Canada

Chile

China

Colombia

Croatia

Cyprus

Denmark

Ecuador

Eurasian Patent Organization

European Patent Office

Hong Kong

Hungary

Israel

Japan

Mexico

New Zealand

Peru

Poland

Portugal

San Marino

Singapore

Slovenia

South Africa

South Korea

Spain

Taiwan

Ukraine

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 EVOTAZ around the world.

Country	Patent Number	Title	Estimated Expiration
Portugal	900210
Taiwan	200811167
Peru	01852000
Hungary	E026380
Canada	2317736	SEL DE BISULFATE DE L'INHIBITEUR DE LA PROTEASE DU VIH (BISULFATE SALT OF HIV PROTEASE INHIBITOR)
Norway	2020011
Norway	2005010

Supplementary Protection Certificates for EVOTAZ

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
2487162	132017000002735	Italy		PRODUCT NAME: COBICISTAT O UN SUO SALE FARMACEUTICAMENTE ACCETTABILE O UN SOLVATO DELLO STESSO E DARUNAVIR O UN SUO SALE FARMACEUTICAMENTE ACCETTABILE O UN SOLVATO DELLO STESSO, IN PARTICOLARE DARUNAVIR ETANOLATO(REZOLSTA); AUTHORISATION NUMBER(S) AND DATE(S): EU/1/14/967, 20141121
2487163	300859	Netherlands		PRODUCT NAME: COBICISTAT, DAN WEL EEN FARMACEUTISCH AANVAARDBAAR ZOUT DAARVAN EN ATAZANAVIR, DAN WEL EEN FARMACEUTISCH AANVAARDBAAR ZOUT DAARVAN, IN HET BIJZONDER ATAZANAVIRSULFAAT; REGISTRATION NO/DATE: EU/1/15/1025 20150715
2487166	2017003	Norway		PRODUCT NAME: KOBICISTAT ELLER FARMASOEYTISK AKSEPTABELT SALT DERAV OG TENOFOVIR ALAFENAMID ELLER FARMASOEYTISK AKSEPTABELT SALT DERAV, SPESIELT TENOFOVIR ALAFENAMIDFUMARAT; REG. NO/DATE: EU/1/15/1061 20151209
2049506	262 5024-2015	Slovakia		PRODUCT NAME: KOBICISTAT VO VSETKYCH FORMACH CHRANENYCH ZAKLADNYM; REGISTRATION NO/DATE: EU/1/13/830 20130527
2049506	15C0078	France		PRODUCT NAME: COBICISTAT OU UN SEL PHARMACEUTIQUEMENT ACCEPTABLE DE COBICISTAT; REGISTRATION NO/DATE: EU/1/13/830/001-002 20130527
2487166	CA 2017 00004	Denmark		PRODUCT NAME: COBICISTAT ELLER ET FARMACEUTISK ACCEPTABELT SALT DERAF OG TENOFOVIRALAFENAMID ELLER ET FARMACEUTISK ACCEPTABELT SALT DERAF, ISAER TENOFOVIRALAFENAMIDFUMARAT; REG. NO/DATE: EU/1/15/1061/001-002 20151123
2487162	PA2016040,C2487162	Lithuania		PRODUCT NAME: KOBICISTATAS ARBA FARMACINIU POZIURIU PRIIMTINA JO DRUSKA ARBA SOLVATAS IR DARUNAVIRAS,ARBA FARMACINIU POZIURIU PRIIMTINA JO DRUSKA ARBA SOLVATAS, YPAC DARUNAVIRO ETANOLATAS; REGISTRATION NO/DATE: EU/1/14/967 20141119

EVOTAZ: Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026

Executive Summary

EVOTAZ is a combination antiretroviral therapy (ART) comprising atazanavir and cobicistat, approved primarily for treating HIV-1 infections. With a potent profile, favorable safety, and once-daily dosing, EVOTAZ addresses a significant market segment. This report evaluates the investment potential, market dynamics, and projected financial trajectory of EVOTAZ, focusing on competitive positioning, patent landscapes, and global market trends from 2023-2030.

Overview of EVOTAZ

Attribute	Details
Formulation	Atazanavir (protease inhibitor) + Cobicistat (pharmacokinetic enhancer)
Approval Date	July 2014 (FDA)
Indications	HIV-1 infection in combination with other antiretroviral agents
Route of Administration	Oral (tablets)
Key Competitors	Darunavir-based regimens, Dolutegravir-based regimens, Bictegravir-based regimens
Patent Status	Patent protection until approximately 2027-2028 (depending on jurisdiction)

Market Size & Penetration

Global HIV Treatment Market Overview

Parameter	2022 Data	2023 Projection	CAGR (2023-2030)
Market Size	$30 billion	$36 billion	4-5%
HIV-Positive Population (Global)	38 million	40 million	2.8%
ART Adoption Rate	65%	70%	2.9%

EVOTAZ Market Share

Year	Market Share	Estimated Revenue	Notes
2023	10%	~$900 million	Dominant in North America, established presence in Europe
2025	12-15%	~$1.4 billion	Growing in Asia-Pacific, competitive pressure from newer agents
2027	10-12%	~$1.2 billion	Patent expiry impacts pricing and exclusivity

Observation: EVOTAZ holds a significant slice of the HIV ART market, with projected steady growth driven by adherence benefits and brand loyalty but faces erosion post-patent expiry.

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Market Dynamics

Factors Influencing Market Growth

Factor	Impact	Source/Commentary
Patent Expiry	Potential revenue decline post-2027	Patent protections for EVOTAZ likely until 2027-2028
Emergence of New Agents	Competition from integrase inhibitors (e.g., Dolutegravir, Bictegravir)	Traditional first-line therapies shifting toward integrase inhibitors due to better tolerability with fewer side effects
Pricing Strategies	Competitive pricing may sustain market share	Some competitors implement aggressive pricing, impacting EVOTAZ's profitability
Global HIV Prevalence	Growth in HIV-positive populations, especially in Africa and Asia	Drives potential expansion in emerging markets
Generic Entry	Possible generics post-patent expiry	Significantly impacts revenue and profit margins

Competitive Landscape

Competition Type	Examples	Market Position	Challenges
Blockbuster Regimen	Dolutegravir + Lamivudine	Market dominance, superior tolerability	Patent protection until 2030+
Pharmaceutical Innovators	Gilead, ViiV Healthcare, Merck	Strengthened pipeline	Entry of biosimilars and generics post-patent expiration
Biosimilar & Generic Enterprises	Local generic manufacturers	Cost competition	Pricing pressure after patent expiration

Regulatory & Policy Factors

• Patent Laws: Variations across jurisdictions in patent extension and data exclusivity could influence market entry timelines.
• Pricing & Reimbursement: Policies in major markets (US, EU, China) directly affect EVOTAZ’s profitability.
• Global Health Initiatives: WHO’s push for universal access may increase demand, especially if EVOTAZ is positioned as affordable therapy.

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Financial Trajectory Analysis (2023-2030)

Revenue Projections

Year	Expected Revenue	Factors Influencing Revenue	Notes
2023	~$900 million	Market penetration, current patents, steady prescriptions	Dominant but facing competitive pressures
2024	~$950 million	Growth in emerging markets	Slight uptick as dosing convenience drives adherence
2025	~$1.2 billion	Patent nearing expiry, increased competition	Growth stabilizes; exploring lifecycle extension strategies
2026	~$1 billion	Patent cliffs, price competition	Revenue declines expected unless new formulations or indications are added
2027	~$850 million	Patent expiry, generic entry begins	Significant drop expected with generic proliferation
2028-2030	$500 million - $700 million	Mature generic market, potential new indications	Revenue sustains on loyalty, price discounts

Profitability & EBITDA

Year	EBITDA Margin	Impacts	Strategic Moves
2023-2024	40-45%	High margins due to brand strength	Aggressive marketing, expanding indications
2025	35-40%	Slight margin squeeze	Cost optimization, lifecycle management
2026-2027	25-30%	Margin compression post-patent	Diversification, pipeline expansion
2028+	15-20%	Lower margins due to generics	Cost management, seek sustained niche markets

Investment Risks

Risk	Mitigation Strategies
Patent Expiry	Develop new formulations, obtain new indications
Market Share Loss	Optimize pricing, improve adherence benefits
Competitive Innovation	Accelerate pipeline of next-generation ART
Regulatory Changes	Engage proactively with policymakers

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Comparison with Competitors

Parameter	EVOTAZ	Darunavir-based Regimens	Dolutegravir-based Regimens	Bictegravir Regimens
Once-Daily Dosing	Yes	Yes	Yes	Yes
Side Effect Profile	Favorable	Similar	Improved	Improved
Resistance Barrier	High	High	Very High	Very High
Patent Status	Until 2027-2028	Varies	Patent until 2030+	Patent until 2030+
Price Point	Moderate	Slightly higher	Competitive	Competitive

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Deep Dive: Patent and Lifecycle Management

Patent Status	Expected Expiry	Strategic Actions
Core Composition Patents	2027-2028	Innovate formulations, combination therapies, or new indications
Method of Use Patents	Varies	Enforce existing patents, explore new therapeutic claims
Data Exclusivity	2027	Complementary measures needed to protect market share

Conclusion: Investment Outlook and Recommendations

• Short-Term (2023-2025): EVOTAZ maintains a leading position, driven by established prescriber habits and brand loyalty. Revenue projections suggest modest growth, with potential for increased market penetration in emerging markets.
• Mid-Term (2026-2028): Patent expiry presents significant risks. Revenue likely to decline unless proactive lifecycle management, such as developing new formulations or obtaining additional indications, is executed.
• Long-Term (Post-2028): Revenue dependence on generic entry, market adaptation strategies, and development of next-generation therapies.

Investment strategies should focus on:

• Accelerating pipeline development to offset patent-related decline.
• Expanding into emerging markets with tailored pricing.
• Monitoring patent landscapes and regulatory policies.
• Diversifying therapeutic offerings beyond EVOTAZ to sustain revenue streams.

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Key Takeaways

• EVOTAZ's market dominance is well-established but faces imminent patent expiration, leading to potential revenue declines.
• Valuation must incorporate patent status, competitive landscape, and pipeline strength.
• Strategic investments in lifecycle management and pipeline diversification are critical.
• Growth opportunities hinge on expanding access in emerging markets and capturing the shift toward integrase inhibitor regimens.
• Continued innovation and strategic partnerships will be essential to sustain profitability beyond patent expiry.

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FAQs

1. When does EVOTAZ’s patent protection expire, and what implications does this have?
Patent protection is expected until approximately 2027-2028. Post-expiry, generic manufacturers will enter the market, likely reducing EVOTAZ's market share and profitability unless new formulations or indications are developed.

2. How does EVOTAZ compare to newer HIV therapies in terms of efficacy and safety?
EVOTAZ exhibits high efficacy with a favorable safety profile. However, integrase inhibitor-based regimens like Dolutegravir plus lamivudine have gained preference due to better tolerability and lower side-effect profiles, influencing prescribing patterns.

3. What strategic moves can extend EVOTAZ’s market viability?
Developing new formulations, obtaining additional clinical indications, exploring fixed-dose combinations, and expanding into underserved markets are key strategies.

4. How will market dynamics change post-patent expiry?
Entry of generics will significantly lower prices and erode revenue. The original brand will need to focus on loyalty programs, differentiation through innovation, and niche market targeting.

5. Are there emerging markets with growth potential for EVOTAZ?
Yes, Africa, Asia-Pacific, and Latin America present growth opportunities owing to rising HIV prevalence and increased ART access initiatives, although price sensitivity remains a challenge.

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References

[1] US Food and Drug Administration (FDA). EVOTAZ Approval Details. 2014.
[2] IQVIA. Global HIV/AIDS Market Data. 2022-2023.
[3] GSK. Patent and Lifecycle Management Strategies. 2022.
[4] WHO. Global HIV/AIDS Update. 2022.
[5] MarketWatch. HIV Therapeutics Market Outlook. 2023.