Aricept Patent Expiration

Aricept is a drug owned by Eisai Inc. It is protected by 4 US drug patents filed in 2013. Out of these, 1 drug patents are active and 3 have expired. Based on its patents and exclusivities, its generic launch date is estimated to be Oct 04, 2026. Details of Aricept's patents and their expiration are given in the table below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
These drug patents focus on the other aspects of the drug like dosage, mode of administration (oral, tablet, capsules, liquids etc).
US8481565 Method for stabilizing anti-dementia drug
Oct, 2026

(1 year, 9 months from now)

Active
US6245911 Donepezil polycrystals and process for producing the same
Dec, 2018

(6 years ago)

Expired
US6140321 Polymorphs of donepezil hydrochloride and process for production
Dec, 2016

(7 years ago)

Expired
US5985864 Polymorphs of donepezil hydrochloride and process for production
Dec, 2016

(7 years ago)

Expired


A patent's expiry date may change depending upon legal activities going on that patent. Critical activities like abandoning of a patent, term extension of a patent or amendment of its claims can increase or decrease the life of a patent hence affecting its expiry date and in turn affecting the generic launch date of that drug. Tracking these ongoing activities on a patent application helps to keep an eye on the latest developments in the patent process of the drug which can give an idea of how early a drug's generic could be available. The next section provides a list of recent legal activities on Aricept's patents.

Given below is the list of recent legal activities going on the following patents of Aricept.

Activity Date Patent Number
Patent litigations
Payment of Maintenance Fee, 8th Year, Large Entity 22 Sep, 2020 US8481565
Correspondence Address Change 03 Dec, 2018 US8481565
Post Issue Communication - Certificate of Correction 17 Apr, 2015 US8481565
Email Notification 19 Feb, 2015 US8481565
Mail-Petition Decision - Dismissed 10 Feb, 2015 US8481565
Petition Decision - Dismissed 09 Feb, 2015 US8481565
Adjustment of PTA Calculation by PTO 02 Feb, 2015 US8481565
Petition Entered 09 Sep, 2013 US8481565
Patent Issue Date Used in PTA Calculation 09 Jul, 2013 US8481565
Recordation of Patent Grant Mailed 09 Jul, 2013 US8481565


FDA has granted several exclusivities to Aricept. Till the time these exclusivities are active, no other company can market a generic or bioequivalent version of Aricept, regardless of the status of it's patents. These exclusivities hence play a crucial role in delaying the generic launch. Given below are details of the exclusivities granted to Aricept.

Exclusivity Information

Aricept holds 1 exclusivities. All of its exclusivities have expired in 2013. Details of Aricept's exclusivity codes and their expiration dates are given below.


Drug Exclusivity Drug Exclusivity Expiration
New Product(NP) Jul 23, 2013

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US patents provide insights into the exclusivity only within the United States, but Aricept is protected by patents in multiple countries. Understanding the full scope of patent protection is crucial in strategizing market entry. By looking at the broader patent landscape, you can identify markets with weaker patent protection which could be ideal generic entry points. The following section offers details on Aricept's family patents as well as insights into ongoing legal events on those patents.

Aricept's Family Patents

Aricept has patent protection in a total of 15 countries. It's US patent count contributes only to 29.2% of its total global patent coverage. 6 countries have all of their patents expired or invalidated which has opened up potential generic launch opportunities in these countries. Click below to unlock the full patent family tree for Aricept.

Family Patents

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Generic Launch

Generic Release Date:

Aricept's generic launch date based on the last expiry date of its patents and exclusivities combined is estimated to be Oct 04, 2026 (This date is subject to change depending upon the patent filing activities by the drug owner or exclusivity additions to its drug application)

Aricept Generic API suppliers:

Donepezil Hydrochloride is the generic name for the brand Aricept. 39 different companies have already filed for the generic of Aricept, with Chartwell Rx having the maximum number of approved applications. Check out the entire list of companies who have already received approval for Aricept's generic

How can I launch a generic of Aricept before its drug patent expiration? :

You can seek FDA approval to launch a generic drug before the expiration of Aricept's patents related by providing a 'paragraph IV certification' in your application, which states that the patent submitted by the Aricept's sponsor is invalid, unenforceable, or will not be infringed by your generic product.

Given below are the details of the already filed Para IV certificates on Aricept -

Strength Submission Date ANDA(s) Filed First applicant approval Last patent expiry 180 day status
5 mg and 10 mg
23 mg 09 Jul, 2013 24 Jul, 2013 04 Oct, 2026 Eligible

Alternative Brands for Aricept

There are several other brand drugs using the same active ingredient (Donepezil Hydrochloride) as Aricept. Given below is the list of those companies and their brand drugs, to help you identify new opportunities, assess competitors, and plan your market strategies more effectively.

Drug Owner Drug Name
Abbvie
Namzaric
Corium
Adlarity
Eisai Inc
Aricept Odt


Apart from brand drugs containing the same ingredient, some generics have also been filed for Donepezil Hydrochloride, Aricept's active ingredient. Check the complete list of approved generic manufacturers for Aricept





About Aricept

Aricept is a drug owned by Eisai Inc. Aricept uses Donepezil Hydrochloride as an active ingredient. Aricept was launched by Eisai Inc in 2010.

Approval Date:

Aricept was approved by FDA for market use on 23 July, 2010.

Active Ingredient:

Aricept uses Donepezil Hydrochloride as the active ingredient. Check out other Drugs and Companies using Donepezil Hydrochloride ingredient

Dosage:

Aricept is available in tablet form for oral use. Given below is detailed information on Dosage -

Strength Dosage Form Availability Application Pathway
23MG TABLET Prescription ORAL
10MG TABLET Prescription ORAL
5MG TABLET Prescription ORAL