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Last Updated: April 16, 2024

Ambrisentan - Generic Drug Details

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What are the generic sources for ambrisentan and what is the scope of freedom to operate?

Ambrisentan is the generic ingredient in two branded drugs marketed by Apotex, Aurobindo Pharma, Cipla, Mylan, Par Pharm Inc, Sigmapharm Labs Llc, Sun Pharm, Watson Labs Inc, Zydus Pharms, and Gilead, and is included in ten NDAs. There are three patents protecting this compound and one Paragraph IV challenge. Additional information is available in the individual branded drug profile pages.

Ambrisentan has fifty patent family members in twenty-six countries.

There are nine drug master file entries for ambrisentan. Ten suppliers are listed for this compound.

Summary for ambrisentan

International Patents:	50
US Patents:	3
Tradenames:	2
Applicants:	10
NDAs:	10
Drug Master File Entries:	9
Finished Product Suppliers / Packagers:	10
Raw Ingredient (Bulk) Api Vendors:	88
Clinical Trials:	64
Patent Applications:	4,415
Formulation / Manufacturing:	see details
Drug Prices:	Drug price trends for ambrisentan
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for ambrisentan
What excipients (inactive ingredients) are in ambrisentan?	ambrisentan excipients list
DailyMed Link:	ambrisentan at DailyMed

See drug prices for ambrisentan

Recent Clinical Trials for ambrisentan

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Sponsor	Phase
Merck Sharp & Dohme Corp.	Phase 2
Nanjing First Hospital, Nanjing Medical University	N/A
Tianjin Medical University General Hospital	N/A

See all ambrisentan clinical trials

Pharmacology for ambrisentan

Drug Class	Endothelin Receptor Antagonist
Mechanism of Action	Endothelin Receptor Antagonists

Paragraph IV (Patent) Challenges for AMBRISENTAN

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
LETAIRIS	Tablets	ambrisentan	5 mg and 10 mg	022081	1	2015-02-09

US Patents and Regulatory Information for ambrisentan

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Glossary

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Gilead	LETAIRIS	ambrisentan	TABLET;ORAL	022081-001	Jun 15, 2007	AB	RX	Yes	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Sun Pharm	AMBRISENTAN	ambrisentan	TABLET;ORAL	210784-001	Mar 28, 2019	AB	RX	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Apotex	AMBRISENTAN	ambrisentan	TABLET;ORAL	210701-002	May 19, 2022	AB	RX	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Aurobindo Pharma	AMBRISENTAN	ambrisentan	TABLET;ORAL	216531-002	Jul 21, 2022	AB	RX	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Par Pharm Inc	AMBRISENTAN	ambrisentan	TABLET;ORAL	209509-002	Apr 10, 2019	AB	RX	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Cipla	AMBRISENTAN	ambrisentan	TABLET;ORAL	210715-001	Apr 26, 2019	AB	RX	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Mylan	AMBRISENTAN	ambrisentan	TABLET;ORAL	208441-002	Mar 28, 2019	AB	RX	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

Expired US Patents for ambrisentan

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Gilead	LETAIRIS	ambrisentan	TABLET;ORAL	022081-001	Jun 15, 2007	⤷ Try a Trial	⤷ Try a Trial
Gilead	LETAIRIS	ambrisentan	TABLET;ORAL	022081-001	Jun 15, 2007	⤷ Try a Trial	⤷ Try a Trial
Gilead	LETAIRIS	ambrisentan	TABLET;ORAL	022081-001	Jun 15, 2007	⤷ Try a Trial	⤷ Try a Trial
Gilead	LETAIRIS	ambrisentan	TABLET;ORAL	022081-001	Jun 15, 2007	⤷ Try a Trial	⤷ Try a Trial
Gilead	LETAIRIS	ambrisentan	TABLET;ORAL	022081-002	Jun 15, 2007	⤷ Try a Trial	⤷ Try a Trial
Gilead	LETAIRIS	ambrisentan	TABLET;ORAL	022081-001	Jun 15, 2007	⤷ Try a Trial	⤷ Try a Trial
Gilead	LETAIRIS	ambrisentan	TABLET;ORAL	022081-002	Jun 15, 2007	⤷ Try a Trial	⤷ Try a Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>Patent No.	>Patent Expiration

EU/EMA Drug Approvals for ambrisentan

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Company	Drugname	Inn	Product Number / Indication	Status	Generic	Biosimilar	Orphan	Marketing Authorisation	Marketing Refusal
GlaxoSmithKline (Ireland) Limited	Volibris	ambrisentan	EMEA/H/C/000839 Volibris is indicated for treatment of pulmonary arterial hypertension (PAH) in adult patients of WHO Functional Class (FC) II to III, including use in combination treatment (see section 5.1). Efficacy has been shown in idiopathic PAH (IPAH) and in PAH associated with connective tissue disease.Volibris is indicated for treatment of PAH in adolescents and children (aged 8 to less than 18 years) of WHO Functional Class (FC) II to III including use in combination treatment. Efficacy has been shown in IPAH, familial, corrected congenital and in PAH associated with connective tissue disease (see section 5.1).	Authorised	no	no	no	2008-04-20
Mylan S.A.S	Ambrisentan Mylan	ambrisentan	EMEA/H/C/004985 Ambrisentan Mylan is indicated for the treatment of pulmonary arterial hypertension (PAH) in adult patients of WHO Functional Class (FC) II to III, including use in combination treatment. Efficacy has been shown in idiopathic PAH (IPAH) and in PAH associated with connective tissue disease.Ambrisentan Mylan is indicated for the treatment of pulmonary arterial hypertension (PAH) in adult patients of WHO Functional Class (FC) II to III, including use in combination treatment. Efficacy has been shown in idiopathic PAH (IPAH) and in PAH associated with connective tissue disease.	Authorised	yes	no	no	2019-06-20
>Company	>Drugname	>Inn	>Product Number / Indication	>Status	>Generic	>Biosimilar	>Orphan	>Marketing Authorisation	>Marketing Refusal

International Patents for ambrisentan

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Country	Patent Number	Title	Estimated Expiration
Hungary	E033346		⤷ Try a Trial
Japan	5806320		⤷ Try a Trial
Canada	2814518	COMPOSITIONS ET METHODES DE TRAITEMENT DE L'HYPERTENSION ARTERIELLE PULMONAIRE (COMPOSITIONS AND METHODS OF TREATING PULMONARY HYPERTENSION)	⤷ Try a Trial
Croatia	P20170848		⤷ Try a Trial
World Intellectual Property Organization (WIPO)	2008073928		⤷ Try a Trial
Hungary	S1600027		⤷ Try a Trial
European Patent Office	2637664	COMPOSITIONS ET MÉTHODES DE TRAITEMENT DE L'HYPERTENSION ARTÉRIELLE PULMONAIRE (COMPOSITIONS AND METHODS OF TREATING PULMONARY HYPERTENSION)	⤷ Try a Trial
>Country	>Patent Number	>Title	>Estimated Expiration

Supplementary Protection Certificates for ambrisentan

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Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
0785926	SPC/GB08/047	United Kingdom	⤷ Try a Trial	PRODUCT NAME: AMBRISENTAN; REGISTERED: UK EU/1/08/451/001 20080421; UK EU/1/08/451/002 20080421; UK EU/1/08/451/003 20080421; UK EU/1/08/451/004 20080421
2101777	PA2016018	Lithuania	⤷ Try a Trial	PRODUCT NAME: AMBRISENTANAS; REGISTRATION NO/DATE: EU/1/08/451 (001-004) 20151120
2101777	93081	Luxembourg	⤷ Try a Trial	PRODUCT NAME: AMBRISENTAN UTILISE EN TRAITEMENT COMBINE AVEC TADALAFIL; FRIST REGISTRATION: 20151125
2101777	122016000039	Germany	⤷ Try a Trial	PRODUCT NAME: AMBRISENTAN IN VERWENDUNG IN DER KOMBINATIONSTHERAPIE MIT TADALAFIL; REGISTRATION NO/DATE: EU/1/08/451 20151120
2101777	C20160017 00199	Estonia	⤷ Try a Trial	PRODUCT NAME: AMBRISENTAAN;REG NO/DATE: EU/1/08/451 25.11.2015
0785926	08C0041	France	⤷ Try a Trial	PRODUCT NAME: AMBRISENTAN; REGISTRATION NO/DATE: EU/1/08/451/001-004 20080421
2101777	2016C/032	Belgium	⤷ Try a Trial	PRODUCT NAME: AMBRISENTAN EN COMBINAISON AVEC LE TADALAFIL; AUTHORISATION NUMBER AND DATE: EU/1/08/451 20151125
>Patent Number	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration	>SPC Description

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.