NAMENDA XR Drug Patent Profile
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Which patents cover Namenda Xr, and when can generic versions of Namenda Xr launch?
Namenda Xr is a drug marketed by Abbvie and is included in one NDA. There is one patent protecting this drug and one Paragraph IV challenge.
This drug has ten patent family members in nine countries.
The generic ingredient in NAMENDA XR is memantine hydrochloride. There are twenty-eight drug master file entries for this compound. Thirty-nine suppliers are listed for this compound. Additional details are available on the memantine hydrochloride profile page.
DrugPatentWatch® Litigation and Generic Entry Outlook for Namenda Xr
A generic version of NAMENDA XR was approved as memantine hydrochloride by DR REDDYS LABS LTD on April 14th, 2010.
Summary for NAMENDA XR
International Patents: | 10 |
US Patents: | 1 |
Applicants: | 1 |
NDAs: | 1 |
Finished Product Suppliers / Packagers: | 1 |
Raw Ingredient (Bulk) Api Vendors: | 121 |
Clinical Trials: | 76 |
Patent Applications: | 2,629 |
Formulation / Manufacturing: | see details |
Drug Prices: | Drug price information for NAMENDA XR |
Patent Litigation and PTAB cases: | See patent lawsuits and PTAB cases for NAMENDA XR |
DailyMed Link: | NAMENDA XR at DailyMed |


See drug prices for NAMENDA XR

Recent Clinical Trials for NAMENDA XR
Identify potential brand extensions & 505(b)(2) entrants
Sponsor | Phase |
---|---|
University of Chicago | Phase 2/Phase 3 |
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | Early Phase 1 |
Children's Hospital Medical Center, Cincinnati | Early Phase 1 |
Pharmacology for NAMENDA XR
Drug Class | N-methyl-D-aspartate Receptor Antagonist |
Mechanism of Action | NMDA Receptor Antagonists |
Anatomical Therapeutic Chemical (ATC) Classes for NAMENDA XR
Paragraph IV (Patent) Challenges for NAMENDA XR
Tradename | Dosage | Ingredient | Strength | NDA | ANDAs Submitted | Submissiondate |
---|---|---|---|---|---|---|
NAMENDA XR | Extended-release Capsules | memantine hydrochloride | 7 mg, 14 mg, 21 mg, and 28 mg | 022525 | 1 | 2013-06-10 |
US Patents and Regulatory Information for NAMENDA XR
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Exclusivity Expiration |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Abbvie | NAMENDA XR | memantine hydrochloride | CAPSULE, EXTENDED RELEASE;ORAL | 022525-001 | Jun 21, 2010 | AB | RX | Yes | No | ⤷ Try a Trial | ⤷ Try a Trial | Y | ⤷ Try a Trial | ||
Abbvie | NAMENDA XR | memantine hydrochloride | CAPSULE, EXTENDED RELEASE;ORAL | 022525-004 | Jun 21, 2010 | AB | RX | Yes | Yes | ⤷ Try a Trial | ⤷ Try a Trial | Y | ⤷ Try a Trial | ||
Abbvie | NAMENDA XR | memantine hydrochloride | CAPSULE, EXTENDED RELEASE;ORAL | 022525-002 | Jun 21, 2010 | AB | RX | Yes | No | ⤷ Try a Trial | ⤷ Try a Trial | Y | ⤷ Try a Trial | ||
Abbvie | NAMENDA XR | memantine hydrochloride | CAPSULE, EXTENDED RELEASE;ORAL | 022525-003 | Jun 21, 2010 | AB | RX | Yes | No | ⤷ Try a Trial | ⤷ Try a Trial | Y | ⤷ 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 NAMENDA XR
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | Patent No. | Patent Expiration |
---|---|---|---|---|---|---|---|
Abbvie | NAMENDA XR | memantine hydrochloride | CAPSULE, EXTENDED RELEASE;ORAL | 022525-001 | Jun 21, 2010 | ⤷ Try a Trial | ⤷ Try a Trial |
Abbvie | NAMENDA XR | memantine hydrochloride | CAPSULE, EXTENDED RELEASE;ORAL | 022525-004 | Jun 21, 2010 | ⤷ Try a Trial | ⤷ Try a Trial |
Abbvie | NAMENDA XR | memantine hydrochloride | CAPSULE, EXTENDED RELEASE;ORAL | 022525-003 | Jun 21, 2010 | ⤷ Try a Trial | ⤷ Try a Trial |
Abbvie | NAMENDA XR | memantine hydrochloride | CAPSULE, EXTENDED RELEASE;ORAL | 022525-002 | Jun 21, 2010 | ⤷ Try a Trial | ⤷ Try a Trial |
>Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >Patent No. | >Patent Expiration |
EU/EMA Drug Approvals for NAMENDA XR
Company | Drugname | Inn | Product Number / Indication | Status | Generic | Biosimilar | Orphan | Marketing Authorisation | Marketing Refusal |
---|---|---|---|---|---|---|---|---|---|
Merz Pharmaceuticals GmbH | Memantine Merz | memantine hydrochloride | EMEA/H/C/002711 Treatment of patients with moderate to severe Alzheimer’s disease. |
Authorised | no | no | no | 2012-11-22 | |
>Company | >Drugname | >Inn | >Product Number / Indication | >Status | >Generic | >Biosimilar | >Orphan | >Marketing Authorisation | >Marketing Refusal |
International Patents for NAMENDA XR
See the table below for patents covering NAMENDA XR around the world.
Country | Patent Number | Title | Estimated Expiration |
---|---|---|---|
European Patent Office | 1874282 | PROCEDES ET COMPOSITIONS POUR LE TRAITEMENT DES PATHOLOGIES ASSOCIEES AU SYSTEME NERVEUX CENTRAL (METHODS AND COMPOSITIONS FOR TREATMENT OF CNS DISORDERS) | ⤷ Try a Trial |
World Intellectual Property Organization (WIPO) | 2005079773 | ⤷ Try a Trial | |
Australia | 2005209310 | Combination of a NMDA receptor antagonist and a MAO-inhibitor or a GADPH-inhibitor for the treatment of central nervous system-related conditions | ⤷ Try a Trial |
Brazil | PI0607017 | métodos e composições para o tratamento de condições relacionadas ao snc | ⤷ Try a Trial |
European Patent Office | 0392059 | USE OF ADAMANTANE DERIVATIVES IN THE PREVENTION AND TREATMENT OF CEREBRAL ISCHEMIA | ⤷ Try a Trial |
>Country | >Patent Number | >Title | >Estimated Expiration |
Supplementary Protection Certificates for NAMENDA XR
Patent Number | Supplementary Protection Certificate | SPC Country | SPC Expiration | SPC Description |
---|---|---|---|---|
0392059 | SPC/GB02/046 | United Kingdom | ⤷ Try a Trial | PRODUCT NAME: MEMANTINE AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS; REGISTERED: UK EU/1/02/219/001 20020515; UK EU/1/02/219/002 20020515; UK EU/1/02/219/003 20020515; UK EU/1/02/219/004 20020515; UK EU/1/02/219/005 20020515; UK EU/1/02/219/006 20020515 |
0392059 | 2002C/035 | Belgium | ⤷ Try a Trial | PRODUCT NAME: MEMANTINE; REGISTRATION NO/DATE: EU/1/02/219/001 20020517 |
0392059 | 0290025-6 | Sweden | ⤷ Try a Trial | PRODUCT NAME: MEMANTIN, 1-AMINO-3,5-DIMETYLADAMANTAN; REGISTRATION NO/DATE: EU/1/02/219/001 20020515 |
0392059 | 90988 | Luxembourg | ⤷ Try a Trial | |
>Patent Number | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration | >SPC Description |