DUZALLO Drug Patent Profile
✉ Email this page to a colleague
Which patents cover Duzallo, and what generic alternatives are available?
Duzallo is a drug marketed by Ironwood Pharms Inc and is included in one NDA. There are nine patents protecting this drug.
This drug has two hundred patent family members in forty-two countries.
The generic ingredient in DUZALLO is allopurinol; lesinurad. There are twenty-two drug master file entries for this compound. Additional details are available on the allopurinol; lesinurad profile page.
DrugPatentWatch® Generic Entry Outlook for Duzallo
By analyzing the patents and regulatory protections it appears that the earliest date
for generic entry will be February 29, 2032. This may change due to patent challenges or generic licensing.
Indicators of Generic Entry
AI Research Assistant
Questions you can ask:
- What is the 5 year forecast for DUZALLO?
- What are the global sales for DUZALLO?
- What is Average Wholesale Price for DUZALLO?
Summary for DUZALLO
| International Patents: | 200 |
| US Patents: | 9 |
| Applicants: | 1 |
| NDAs: | 1 |
| Raw Ingredient (Bulk) Api Vendors: | 1 |
| Drug Prices: | Drug price information for DUZALLO |
| DailyMed Link: | DUZALLO at DailyMed |
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for DUZALLO
*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.
US Patents and Regulatory Information for DUZALLO
DUZALLO is protected by nine US patents.
Based on analysis by DrugPatentWatch, the earliest date for a generic version of DUZALLO is ⤷ Sign Up.
This potential generic entry date is based on patent ⤷ Sign Up.
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 DUZALLO
Compounds and compositions and methods of use
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Patented Use: TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE
2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)acet- ic acid and methyl ester
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Compounds and compositions and methods of use
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Patented Use: TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE
Compounds and compositions and methods of use
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Patented Use: TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE
Compounds and compositions and methods of use
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Patented Use: TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE
Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)ace- tic acid and uses thereof
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Compounds and compositions and methods of use
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Patented Use: TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE
Treatment of gout and hyperuricemia
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Patented Use: TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE
Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)ace- tic acid and uses thereof
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up
Patented Use: TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE
| Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Exclusivity Expiration |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ironwood Pharms Inc | DUZALLO | allopurinol; lesinurad | TABLET;ORAL | 209203-001 | Aug 18, 2017 | DISCN | Yes | No | ⤷ Sign Up | ⤷ Sign Up | ⤷ Sign Up | ||||
| Ironwood Pharms Inc | DUZALLO | allopurinol; lesinurad | TABLET;ORAL | 209203-002 | Aug 18, 2017 | DISCN | Yes | No | ⤷ Sign Up | ⤷ Sign Up | Y | ⤷ Sign Up | |||
| Ironwood Pharms Inc | DUZALLO | allopurinol; lesinurad | TABLET;ORAL | 209203-001 | Aug 18, 2017 | DISCN | Yes | No | ⤷ Sign Up | ⤷ Sign Up | ⤷ Sign Up | ||||
| Ironwood Pharms Inc | DUZALLO | allopurinol; lesinurad | TABLET;ORAL | 209203-001 | Aug 18, 2017 | DISCN | Yes | No | ⤷ Sign Up | ⤷ Sign Up | ⤷ Sign Up | ||||
| >Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >TE | >Type | >RLD | >RS | >Patent No. | >Patent Expiration | >Product | >Substance | >Delist Req. | >Exclusivity Expiration |
EU/EMA Drug Approvals for DUZALLO
| Company | Drugname | Inn | Product Number / Indication | Status | Generic | Biosimilar | Orphan | Marketing Authorisation | Marketing Refusal |
|---|---|---|---|---|---|---|---|---|---|
| Grunenthal GmbH | Duzallo | allopurinol, lesinurad | EMEA/H/C/004412 Duzallo is indicated in adults for the treatment of hyperuricaemia in gout patients who have not achieved target serum uric acid levels with an adequate dose of allopurinol alone. |
Withdrawn | no | no | no | 2018-08-23 | |
| >Company | >Drugname | >Inn | >Product Number / Indication | >Status | >Generic | >Biosimilar | >Orphan | >Marketing Authorisation | >Marketing Refusal |
International Patents for DUZALLO
When does loss-of-exclusivity occur for DUZALLO?
Based on analysis by DrugPatentWatch, the following patents block generic entry in the countries listed below:
Argentina
Patent: 4639
Patent: FORMAS POLIMORFICAS DE ACIDO 2-(5-BROMO-4-(4-CICLOPROPILNAFTALEN-1-IL)-4H-1,2,4-TRIAZOL-3-ILTIO)ACETICO Y USOS DEL MISMO
Estimated Expiration: ⤷ Sign Up
Australia
Patent: 11352129
Patent: Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-3ylthio)acetic acid and uses thereof
Estimated Expiration: ⤷ Sign Up
Brazil
Patent: 2013016982
Patent: formas polimórficas de ácido 2-(5-bromo-4-(4-ciclopropilnaftalen-1-il)-4h-1,2,4-triazol-3-iltio)acético e usos destes
Estimated Expiration: ⤷ Sign Up
Canada
Patent: 17249
Patent: FORMES POLYMORPHES DE L'ACIDE 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO) ACETIQUE ET LEURS UTILISATIONS (POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO) ACETIC ACID AND USES THEREOF)
Estimated Expiration: ⤷ Sign Up
China
Patent: 3298796
Patent: Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio) acetic acid and uses thereof
Estimated Expiration: ⤷ Sign Up
Croatia
Patent: 0170187
Estimated Expiration: ⤷ Sign Up
Cyprus
Patent: 18621
Estimated Expiration: ⤷ Sign Up
Denmark
Patent: 58846
Estimated Expiration: ⤷ Sign Up
Eurasian Patent Organization
Patent: 2301
Patent: ПОЛИМОРФНЫЕ ФОРМЫ 2-(5-БРОМ-4-(4-ЦИКЛОПРОПИЛНАФТАЛИН-1-ИЛ)-4H-1,2,4-ТРИАЗОЛ-3-ИЛТИО)УКСУСНОЙ КИСЛОТЫ И ИХ ПРИМЕНЕНИЕ (POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO)ACETIC ACID AND USES THEREOF)
Estimated Expiration: ⤷ Sign Up
Patent: 1370150
Patent: ПОЛИМОРФНЫЕ ФОРМЫ 2-(5-БРОМ-4-(4-ЦИКЛОПРОПИЛНАФТАЛИН-1-ИЛ)-4H-1,2,4-ТРИАЗОЛ-3-ИЛТИО)УКСУСНОЙ КИСЛОТЫ И ИХ ПРИМЕНЕНИЕ
Estimated Expiration: ⤷ Sign Up
European Patent Office
Patent: 58846
Patent: FORMES POLYMORPHES DE L'ACIDE 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO) ACÉTIQUE ET LEURS UTILISATIONS (POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO) ACETIC ACID AND USES THEREOF)
Estimated Expiration: ⤷ Sign Up
Hungary
Patent: 31766
Estimated Expiration: ⤷ Sign Up
Israel
Patent: 6367
Patent: צורות פולימורפיות גבישיות של 2-(5-ברומו-4-(4-ציקלופרופילנפתלן -1-איל)-4h-4,2,1-טריאזול-3-אילתיאו) חומצה אצטית, תכשירי רוקחות מוצקים המכילים אותן ושיטות להכנתן (Polymorphic forms of crystalline polymorph of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)4h-1,2,4-triazol-3-ylthio) acetic acid, solid pharmaceutical compositions comprising them and a process for their preparation)
Estimated Expiration: ⤷ Sign Up
Japan
Patent: 81627
Estimated Expiration: ⤷ Sign Up
Patent: 14501282
Estimated Expiration: ⤷ Sign Up
Patent: 15172053
Patent: ２−（５−ブロモ−４−（４−シクロプロピルナフタレン−１−イル）−４Ｈ−１，２，４−トリアゾル−３−イルチオ）酢酸の多形形態およびその使用 (POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO)ACETIC ACID AND USES THEREOF)
Estimated Expiration: ⤷ Sign Up
Lithuania
Patent: 58846
Estimated Expiration: ⤷ Sign Up
Malaysia
Patent: 2534
Patent: POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO)ACETIC ACID AND USES THEREOF
Estimated Expiration: ⤷ Sign Up
Mexico
Patent: 13007505
Patent: FORMAS POLIMORFICAS DE ACIDO 2-(5-BROMO-4-(4-CICLOPROPILNAFTALEN-1 -IL)-4H-1,2,4-TRIAZOL-3-ILTIO)ACETICO Y USOS DE LOS MISMOS. (POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)- 4H-1,2,4-TRIAZOL-3-YLTHIO) ACETIC ACID AND USES THEREOF.)
Estimated Expiration: ⤷ Sign Up
New Zealand
Patent: 0104
Patent: Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4h-1,2,4-triazol-3-ylthio) acetic acid and uses thereof
Estimated Expiration: ⤷ Sign Up
Poland
Patent: 58846
Estimated Expiration: ⤷ Sign Up
Portugal
Patent: 58846
Estimated Expiration: ⤷ Sign Up
Serbia
Patent: 667
Patent: POLIMORFNE FORME 2-(5-BROMO-4-(4-CILKOPROPILNAFTALEN-1-IL)-4H-1,2,4-TRIAZOL-3-ILTIO) SIRĆETNE KISELINE I NJIHOVA UPOTREBA (POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO) ACETIC ACID AND USES THEREOF)
Estimated Expiration: ⤷ Sign Up
Singapore
Patent: 0902
Patent: POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO) ACETIC ACID AND USES THEREOF
Estimated Expiration: ⤷ Sign Up
Slovenia
Patent: 58846
Estimated Expiration: ⤷ Sign Up
South Africa
Patent: 1303253
Patent: POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YL-THIO)ACETIC ACID AND USES THEREOF
Estimated Expiration: ⤷ Sign Up
South Korea
Patent: 1541629
Estimated Expiration: ⤷ Sign Up
Patent: 130105902
Patent: POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO)ACETIC ACID AND USES THEREOF
Estimated Expiration: ⤷ Sign Up
Spain
Patent: 14914
Estimated Expiration: ⤷ Sign Up
Taiwan
Patent: 52037
Estimated Expiration: ⤷ Sign Up
Patent: 1302718
Patent: Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)acetic acid and uses thereof
Estimated Expiration: ⤷ Sign Up
Ukraine
Patent: 9172
Patent: ПОЛІМОРФНА ФОРМА 2-(5-БРОМ-4-(4-ЦИКЛОПРОПІЛНАФТАЛІН-1-ІЛ)-4H-1,2,4-ТРИАЗОЛ-3-ІЛТІО)ОЦТОВОЇ КИСЛОТИ (ВАРІАНТИ) ТА ЇЇ ЗАСТОСУВАННЯ
Estimated Expiration: ⤷ Sign Up
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 DUZALLO around the world.
| Country | Patent Number | Title | Estimated Expiration |
|---|---|---|---|
| European Patent Office | 2609917 | Triazolyl alpha-mercaptoacetanildes tenant lieu d'inhibiteurs de la transcriptase inverse VIH (Triazolyl alpha -mercaptoacetanilides as inhibitors of HIV reverse transcriptase) | ⤷ Sign Up |
| New Zealand | 581376 | Intermediates useful in the synthesis of S-triazolyl alpha-mercaptoacetanildes for inhibition of HIV reverse transcriptase | ⤷ Sign Up |
| South Korea | 20130105902 | POLYMORPHIC FORMS OF 2-(5-BROMO-4-(4-CYCLOPROPYLNAPHTHALEN-1-YL)-4H-1,2,4-TRIAZOL-3-YLTHIO)ACETIC ACID AND USES THEREOF | ⤷ Sign Up |
| Serbia | 57275 | TRETMAN GIHTA I HIPERURIKEMIJE (TREATMENT OF GOUT AND HYPERURICEMIA) | ⤷ Sign Up |
| >Country | >Patent Number | >Title | >Estimated Expiration |
Supplementary Protection Certificates for DUZALLO
| Patent Number | Supplementary Protection Certificate | SPC Country | SPC Expiration | SPC Description |
|---|---|---|---|---|
| 2135608 | 1690033-4 | Sweden | ⤷ Sign Up | PRODUCT NAME: LESINURAD, OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF.; REG. NO/DATE: EU/1/15/1080 20160222 |
| 2135608 | C20160027 00203 | Estonia | ⤷ Sign Up | PRODUCT NAME: LESINURAAD;REG NO/DATE: EU/1/15/1080 22.02.2016 |
| 2135608 | 16C0031 | France | ⤷ Sign Up | PRODUCT NAME: LESINURAD; REGISTRATION NO/DATE: EU/1/15/1080 20160222 |
| 2135608 | 34/2016 | Austria | ⤷ Sign Up | PRODUCT NAME: LESINURAD ODER EIN PHARMAZEUTISCH VERTRAEGLICHES SALZ DAVON; REGISTRATION NO/DATE: EU/1/15/1080 (MITTEILUNG) 20160222 |
| >Patent Number | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration | >SPC Description |
Make Better Decisions: Try a trial or see plans & pricing
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.
ISSN: 2162-2639
Privacy and Cookies
Terms & Conditions
Site Map
DrugPatentWatch Alternatives
LOE / Major Patent Expirations 2024 - 2025
NCE-1 Patent Challenge Dates 2024 - 2025
Trigger-based marketing for the life sciences
Get DrugPatentWatch Business Intelligence Reports at Amazon.com
DrugChatter - AI-based answers to questions about drugs
RxJam - Digital Marketing for Life Sciences
Friedman, Yali. "DrugPatentWatch" DrugPatentWatch, thinkBiotech, 2024, www.DrugPatentWatch.com.
See Primary Research Papers Citing DrugPatentWatch
Follow DrugPatentWatch:
