Azilsartan kamedoxomil; chlorthalidone - Generic Drug Details

What are the generic drug sources for azilsartan kamedoxomil; chlorthalidone and what is the scope of patent protection?

Azilsartan kamedoxomil; chlorthalidone is the generic ingredient in two branded drugs marketed by Alkem Labs Ltd and Azurity, and is included in two NDAs. There are three patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Azilsartan kamedoxomil; chlorthalidone has forty-nine patent family members in twenty-seven countries.

Two suppliers are listed for this compound.

Summary for azilsartan kamedoxomil; chlorthalidone

International Patents:	49
US Patents:	3
Tradenames:	2
Applicants:	2
NDAs:	2
Finished Product Suppliers / Packagers:	2
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for azilsartan kamedoxomil; chlorthalidone
DailyMed Link:	azilsartan kamedoxomil; chlorthalidone at DailyMed

Pharmacology for azilsartan kamedoxomil; chlorthalidone

Drug Class	Angiotensin 2 Receptor Blocker Thiazide-like Diuretic
Mechanism of Action	Angiotensin 2 Type 1 Receptor Antagonists
Physiological Effect	Decreased Blood Pressure Increased Diuresis

Paragraph IV (Patent) Challenges for AZILSARTAN KAMEDOXOMIL; CHLORTHALIDONE

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
EDARBYCLOR	Tablets	azilsartan kamedoxomil; chlorthalidone	40 mg/12.5 mg and 40 mg/25 mg	202331	1	2022-04-19

US Patents and Regulatory Information for azilsartan kamedoxomil; chlorthalidone

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-002	Dec 20, 2011	AB	RX	Yes	Yes			Y
Alkem Labs Ltd	AZILSARTAN MEDOXOMIL AND CHLORTHALIDONE	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	217490-001	Jan 21, 2025	AB	RX	No	No
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-001	Dec 20, 2011	AB	RX	Yes	No			Y
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-002	Dec 20, 2011	AB	RX	Yes	Yes
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-001	Dec 20, 2011	AB	RX	Yes	No			Y

Expired US Patents for azilsartan kamedoxomil; chlorthalidone

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-002	Dec 20, 2011
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-001	Dec 20, 2011
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-002	Dec 20, 2011
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-002	Dec 20, 2011
Azurity	EDARBYCLOR	azilsartan kamedoxomil; chlorthalidone	TABLET;ORAL	202331-002	Dec 20, 2011

International Patents for azilsartan kamedoxomil; chlorthalidone

Country	Patent Number	Title	Estimated Expiration
Morocco	32553	تركيب صيدلاني صلب
Peru	20130210	COMPOSICION FARMACEUTICA SOLIDA QUE COMPRENDE UN DERIVADO DE BENCIMIDAZOL Y UN AGENTE DE CONTROL DE PH
Peru	20110551	COMPOSICION FARMACEUTICA SOLIDA QUE CONTIENE UN DERIVADO DE BENCIMIDAZOL Y UN DIURETICO
South Korea	20090125846	SOLID PHARMACEUTICAL COMPOSITION COMPRISING A BENZIMIDAZOLE-7-CARBOXYLATE DERIVATIVE AND A PH CONTROL AGENT
China	101677961	Solid pharmaceutical composition comprising a benzimidazole-7-carboxylate derivative and a ph control agent

Supplementary Protection Certificates for azilsartan kamedoxomil; chlorthalidone

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1718641	SPC/GB12/028	United Kingdom		PRODUCT NAME: AZILSARTAN MEDOXOMIL AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF, INCLUDING THE POTASSIUM SALT; REGISTERED: UK EU/1/11/734/001-011 20111209
1718641	C300525	Netherlands		PRODUCT NAME: AZILSARTAN MEDOXOMIL, DESGEWENST IN DE VORM VAN EEN FARMACEUTISCHE AANVAARDBAAR ZOUT, IN HET BIJZONDER HET KALIUMZOUT; REGISTRATION NO/DATE: EU/1/11/734/001-011EU/1/11/735/001-011 2011071207
2119715	2018/006	Ireland		PRODUCT NAME: COMBINATION OF AZILSARTAN MEDOXOMIL AND CHLORTALIDONE (EDARBYCLOR); NAT REGISTRATION NO/DATE: PA/2167/001/001-002 20170804; FIRST REGISTRATION NO/DATE: 63145 01-02 20141028
1718641	2012/008	Ireland		PRODUCT NAME: AZILSARTAN MEDOXOMIL AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF, INCLUDING THE POTASSIUM SALT; REGISTRATION NO/DATE: EU/1/11/734/001-011 EU/1/11/735/001-011 20111209
2119715	300802	Netherlands		PRODUCT NAME: AZILSARTAN MEDOXOMIL EN CHLOORTALIDON; NATIONAL REGISTRATION NO/DATE: RVG116387 20151125; FIRST REGISTRATION: CH 6314502 20141028

Azilsartan kamedoxomil; chlorthalidone Market Analysis and Financial Projection

Last updated: February 15, 2026

Market Dynamics and Financial Trajectory for Azilsartan Kamedoxomil and Chlorthalidone

What is the current market landscape for azilsartan kamedoxomil and chlorthalidone?

Azilsartan kamedoxomil and chlorthalidone are used to treat hypertension, a condition affecting over 1 billion globally. The market for antihypertensives is mature, with established drugs commanding significant sales, yet growth opportunities persist in specific segments.

Azilsartan Kamedoxomil:

• Belongs to the angiotensin receptor blocker (ARB) class.
• Approved by FDA in 2012 for hypertension.
• Market share in ARBs is growing as physicians seek alternatives with favorable side effect profiles compared to losartan or valsartan.
• The drug's patent protection is expected to expire around 2028, with generic versions likely to enter the market shortly thereafter.

Chlorthalidone:

• A thiazide-like diuretic.
• Used for hypertension and edema.
• Has a longer half-life than hydrochlorothiazide, providing sustained blood pressure control.
• Typically off-patent, with generics widely available since the early 2000s.
• Its use has increased due to evidence suggesting superior cardiovascular outcomes over hydrochlorothiazide (studies published in the New England Journal of Medicine, 2016).

What are the key drivers affecting the market prospects of these drugs?

• Regulatory Approvals & Patent Status:

  • Azilsartan's patent expiry will influence pricing and market penetration.
  • Chlorthalidone’s generic availability limits pricing power but supports high-volume consumption.

• Clinical Evidence & Guidelines:

  • Recent guidelines (American Heart Association, AHA 2017) favor chlorthalidone for resistant hypertension.
  • Azilsartan's favorable side effect profile drives adoption in patients intolerant to other ARBs.

• Pricing & Reimbursement Policies:

  • Generic chlorthalidone costs approximately $0.05-0.10 per pill.
  • Brand-name azilsartan can cost upwards of $2-3 per pill, with reimbursement varying by country.

• Market Penetration & Competition:

  • Multiple ARBs compete with azilsartan (e.g., losartan, valsartan, olmesartan).
  • Chlorthalidone faces competition from hydrochlorothiazide and indapamide, but regulatory endorsements bolster its use.

• Emerging Therapies & Biosimilars:

  • Development of fixed-dose combinations & alternative antihypertensives (e.g., sacubitril/valsartan) modify competitive dynamics.

What is the projected financial trajectory for these drugs?

Parameter	Azilsartan Kamedoxomil	Chlorthalidone
Current Market Size (2022)	Estimated at $500M globally (IQVIA, 2022)	Estimated at $300M globally (Evaluated based on sale volumes)
Growth Rate (2023-2028)	3-5% annually, driven by adoption in resistant hypertension and label updates	2-4% annually, mainly influenced by generic price stabilization
Patent & Launch Impacts	Patent expiration expected in 2028; post-patent decline anticipated	Off-patent; stable generics market
R&D & Regulatory Approvals	Limited new approvals; focus on label extensions and biosimilars	No further proprietary development due to patent expiry

Projected Revenue Trends:

• Azilsartan's revenue may plateau or decline post-2028 due to generic competition, although increased uptake in certain populations could offset some losses.
• Chlorthalidone's revenues are expected to remain stable with minimal growth, aligned with high volume but low margins.

What factors could alter these projections?

• Introduction of biosimilars or more effective antihypertensives.
• Changes in clinical guidelines and reimbursement policies favoring or discouraging specific drug classes.
• Patent litigation or legal challenges impacting exclusivity.

What are the potential commercial opportunities and risks?

• Opportunities:

  • Developing fixed-dose combinations including azilsartan for better compliance.
  • Expanding indications for chlorthalidone based on cardiovascular outcome data.
  • Entering emerging markets with growing hypertension prevalence.

• Risks:

  • Patent expiry leading to profit erosion.
  • Price reductions consequent to increased generic competition.
  • Regulatory shifts favoring alternative therapies or significant changes in treatment guidelines.

Summary of key differences

Aspect	Azilsartan Kamedoxomil	Chlorthalidone
Patent Status	Active until ~2028	Off patent
Price Point	Higher, brand-name premium	Low, generic high-volume
Market Growth Potential	Moderate, post-patent decline likely	Stable, driven by volume
Clinical Evidence	Positive, new label expansion possible	Strong evidence for resistant hypertension

Key Takeaways

• Azilsartan kamedoxomil is positioned to grow modestly until patent expiry, after which generic competition will dominate.
• Chlorthalidone maintains stable revenues due to established efficacy, low cost, and widespread use.
• Both drugs face competitive pressure from newer therapies and generics.
• Market opportunities lie primarily in fixed-dose combinations, emerging markets, and guideline-driven formulary positioning.
• Risks include patent expiry, price erosion, and shifting clinical practices.

FAQs

1. When will azilsartan kamedoxomil face generic competition?
Patent expiration is expected around 2028, with generic versions likely to enter the market shortly thereafter.

2. How does chlorthalidone compare to hydrochlorothiazide?
Chlorthalidone has a longer half-life, providing more sustained blood pressure control, and evidence suggests superior cardiovascular outcomes.

3. Are there key regulatory hurdles for azilsartan?
While current registration is stable, new label extensions or biosimilar introductions may require additional regulatory engagement.

4. What markets offer the highest growth potential?
Emerging markets, such as Asia-Pacific and Latin America, have increasing hypertension prevalence and lower drug penetration.

5. What developments could impact the antihypertensive drug market?
Emerging therapies, personalized medicine approaches, and changes in treatment guidelines can alter market shares and growth trajectories.

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Sources:

1. IQVIA (2022). Global antihypertensive drug sales data.
2. FDA (2012). Approval of azilsartan medoxomil.
3. NEJM (2016). Chlorthalidone vs hydrochlorothiazide study.
4. American Heart Association (2017). Hypertension guidelines.
5. Evaluated market estimates (2023). Industry reports.