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 active substance like dosage, mode of administration (oral, tablet, capsules, liquids etc). | |||
| US5985864 | Polymorphs of donepezil hydrochloride and process for production |
Dec, 2016
(7 years ago) |
Expired
|
| US6140321 | Polymorphs of donepezil hydrochloride and process for production |
Dec, 2016
(7 years ago) |
Expired
|
| US6245911 | Donepezil polycrystals and process for producing the same |
Dec, 2018
(5 years ago) |
Expired
|
| US8481565 | Method for stabilizing anti-dementia drug |
Oct, 2026
(2 years from now) | Active |
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.
Latest Legal Activities on Aricept's Patents
Given below is the list of recent legal activities going on the following patents of Aricept.
| Event | Date | Patent/Publication |
|---|---|---|
 | ||
| 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 |
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
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Generic Launch
Generic Release Date:
Aricept's generic launch date based on the expiry of its last outstanding patent 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 Generics:
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 |
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 1996.
Market Authorisation Date:
Aricept was approved by FDA for market use on 25 November, 1996.
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 |
|---|---|---|---|
| 5MG | TABLET | Prescription | ORAL |
| 10MG | TABLET | Prescription | ORAL |
| 23MG | TABLET | Prescription | ORAL |