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DUOBRII Drug Patent Profile

When do Duobrii patents expire, and what generic alternatives are available?

Duobrii is a drug marketed by Bausch and is included in one NDA. There are seven patents protecting this drug and one Paragraph IV challenge.

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

The generic ingredient in DUOBRII is halobetasol propionate; tazarotene. There are nine drug master file entries for this compound. One supplier is listed for this compound. Additional details are available on the halobetasol propionate; tazarotene profile page.

DrugPatentWatch^® Generic Entry Outlook for Duobrii

By analyzing the patents and regulatory protections it appears that the earliest date for generic entry will be November 2, 2031. This may change due to patent challenges or generic licensing.

There have been four 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 DUOBRII

International Patents:	54
US Patents:	7
Applicants:	1
NDAs:	1
Finished Product Suppliers / Packagers:	1
Clinical Trials:	6
Formulation / Manufacturing:	see details
Drug Prices:	Drug price information for DUOBRII
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for DUOBRII
What excipients (inactive ingredients) are in DUOBRII?	DUOBRII excipients list
DailyMed Link:	DUOBRII at DailyMed

See drug prices for DUOBRII

DrugPatentWatch^® Estimated Loss of Exclusivity (LOE) Date for DUOBRII

NDA:

209354

Dosage:

LOTION;TOPICAL

^*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

Recent Clinical Trials for DUOBRII

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

Sponsor	Phase
Dermatology Consulting Services, PLLC	Phase 4
Bausch Health Americas, Inc.	Phase 3
Icahn School of Medicine at Mount Sinai	Phase 3

See all DUOBRII clinical trials

Pharmacology for DUOBRII

Drug Class	Corticosteroid Retinoid
Mechanism of Action	Corticosteroid Hormone Receptor Agonists

Paragraph IV (Patent) Challenges for DUOBRII

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
DUOBRII	Lotion	halobetasol propionate; tazarotene	0.01%/0.045%	209354	1	2020-06-11

US Patents and Regulatory Information for DUOBRII

DUOBRII is protected by seven US patents.

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

Patents protecting DUOBRII

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Bausch	DUOBRII	halobetasol propionate; tazarotene	LOTION;TOPICAL	209354-001	Apr 25, 2019		RX	Yes	Yes			Y
Bausch	DUOBRII	halobetasol propionate; tazarotene	LOTION;TOPICAL	209354-001	Apr 25, 2019		RX	Yes	Yes			Y
Bausch	DUOBRII	halobetasol propionate; tazarotene	LOTION;TOPICAL	209354-001	Apr 25, 2019		RX	Yes	Yes			Y
Bausch	DUOBRII	halobetasol propionate; tazarotene	LOTION;TOPICAL	209354-001	Apr 25, 2019		RX	Yes	Yes

Expired US Patents for DUOBRII

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Bausch	DUOBRII	halobetasol propionate; tazarotene	LOTION;TOPICAL	209354-001	Apr 25, 2019

International Patents for DUOBRII

When does loss-of-exclusivity occur for DUOBRII?

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

Australia

Brazil

Canada

China

Croatia

European Patent Office

Hungary

Israel

Japan

Lithuania

Mexico

New Zealand

Poland

Portugal

Russian Federation

Slovenia

South Korea

Spain

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 DUOBRII around the world.

Country	Patent Number	Title	Estimated Expiration
World Intellectual Property Organization (WIPO)	2018209262
China	103228281	Pharmaceutical formulations containing corticosteroids for topical administration
Luxembourg	92401
Mexico	PA03001006	SISTEMA DE SUMINISTRO LOCAL DE GEL. (TOPICAL GEL DELIVERY SYSTEM.)

Supplementary Protection Certificates for DUOBRII

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1304992	PA2013025	Lithuania		PRODUCT NAME: CLINFAMYCINUM + TRETINOINUM; REGISTRATION NO/DATE: LT/1/13/3279/001, 2013 04 26 LT/1/13/3279/002, 2013 04 26 PA1332/043/001 20130323
1304992	2013C/060	Belgium		PRODUCT NAME: CLINDAMYCINE (ALS CLINDAMYCINE FOSFAAT) EN TRETINOINE; AUTHORISATION NUMBER AND DATE: BE437507 20130506
1304992	2013/044	Ireland		PRODUCT NAME: CLINDAMYCIN AND TRETINOIN; REGISTRATION NO/DATE: PA1332/043/001 20130322
1304992	CR 2013 00053	Denmark		PRODUCT NAME: CLINDAMYCIN (SOM CLINDAMYCIN PHOSPHATE) OG TRETINOIN; NAT. REG. NO/DATE: 48954 20130416; FIRST REG. NO/DATE: IE PA1332/043/001 20130322