Veozah Patent Expiration

Veozah is a drug owned by Astellas Pharma Us Inc. It is protected by 4 US drug patents filed in 2023 out of which none have expired yet. Veozah's patents will be open to challenges from 13 May, 2027. Based on its patents and exclusivities, its generic launch date is estimated to be Mar 28, 2034. Details of Veozah's patents and their expiration are given in the table below.

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Drug Patent Number Drug Patent Title Drug Patent Expiry Status
These drug patents protect the active ingredient(API) of the drug. Only drug patent owner can launch products that use this active ingredient until these patents expire.
US9422299 Substituted [1,2,4]triazolo[4,3-a]pyrazines as selective NK-3 receptor antagonists
Mar, 2034

(7 years from now)

Active
US8871761 NK-3 receptor selective antagonist compounds, pharmaceutical composition and methods for use in NK-3 receptors mediated disorders
Apr, 2031

(4 years from now)

Active
These drug patents focus on the other aspects of the drug like dosage, mode of administration (oral, tablet, capsules, liquids etc).
US10836768 N-acyl-(3-substituted)-(8-substituted)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazines as selective NK-3 receptor antagonists
Mar, 2034

(7 years from now)

Active
US9987274 N-acyl-(3-substituted)-(8-substituted)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazines as selective NK-3 receptor antagonists
Mar, 2034

(7 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 Veozah's patents.

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

Activity Date Patent Number
Patent litigations
Withdrawal of Application for PTE 05 Feb, 2026 US10836768
Withdrawal of Application for PTE 05 Feb, 2026 US9987274
Election in Response to Notice of Final Determination 26 Jan, 2026 US9422299
Payment of Maintenance Fee, 8th Year, Large Entity 05 Dec, 2025 US9987274
Notice of Final Determination -Election Required 24 Oct, 2025 US9987274
Notice of Final Determination -Election Required 24 Oct, 2025 US10836768
Notice of Final Determination -Election Required 24 Oct, 2025 US9422299
FDA Final Eligibility Letter 18 Sep, 2025 US9422299
FDA Final Eligibility Letter 18 Sep, 2025 US10836768
FDA Final Eligibility Letter 18 Sep, 2025 US9987274


FDA has granted several exclusivities to Veozah. Till the time these exclusivities are active, no other company can market a generic or bioequivalent version of Veozah, 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 Veozah.

Exclusivity Information

Veozah holds 1 exclusivities out of which none have expired. Its last outstanding exclusivity is set to expire in 2028. Details of Veozah's exclusivity codes and their expiration dates are given below.


Drug Exclusivity Drug Exclusivity Expiration
New Chemical Entity Exclusivity(NCE) May 12, 2028

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US patents provide insights into the exclusivity only within the United States, but Veozah 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 Veozah's family patents as well as insights into ongoing legal events on those patents.

Veozah's Family Patents


Family Patents

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Clinical Trials

Recent Clinical Trials on Veozah:

Sometimes companies keep conducting clinical trials even after the drug's approval to discover new formulations, methods of use, or new treatment indications, so they could file for additional patents or receive regulatory exclusivity extensions, such as pediatric exclusivity, potentially delaying generic competition. Based on these recent clinical trials, generic companies need to consider the potential for new intellectual property or regulatory hurdles. These strategic moves by the drug owner might delay generic substitution or lead to additional sales of the brand drug, even after patent expiry.

Title Lead Sponsor Collaborators Status Phases
Clinical Trials
A Study to Confirm if Fezolinetant Helps Reduce Hot Flashes in Women With Breast Cancer Who Are Having Hormone Therapy Astellas Pharma Global Development, Inc. NA ACTIVE NOT RECRUITING
(Sep 1, 2026)
PHASE3
A Study to Confirm if Fezolinetant Helps to Reduce Hot Flashes in Indian Women Going Through Menopause Astellas Pharma Inc NA NOT YET RECRUITING
(Sep 1, 2026)
PHASE3
Proof-of-Concept Trial to Assess the Efficacy and Safety of Fezolinetant in Improving Vasomotor Symptoms in Men With Prostate Cancer Undergoing Androgen Deprivation Therapy Shehzad Basaria, M.D. NA RECRUITING
(Aug 1, 2026)
PHASE2
Fezolinetant and Vascular Health and Brain Health Rebecca Thurston NA NOT YET RECRUITING
(Aug 1, 2026)
PHASE3
Focusing on the Menopausal Transition to Improve Mid-Life Women's Health University of Colorado, Denver NA RECRUITING
(Jul 1, 2026)
PHASE2, PHASE3
Fezolinetant for the Improvement of Vasomotor Symptoms in Breast Cancer Patients Taking Endocrine Therapy, VENT Trial University of Michigan Rogel Cancer Center NA TERMINATED
(May 1, 2026)
PHASE2
FLASH-Breast: Evaluating the Efficacy of Fezolinetant in Reducing Vasomotor Symptoms in Women With Breast Cancer on Endocrine Therapy Yale University NA RECRUITING
(May 1, 2026)
PHASE2
Finding Links Between Hot flASHes and CardioVascular Disease Massachusetts General Hospital NA RECRUITING
(May 1, 2026)
PHASE2
A Trial on Fezolinetant for Vasomotor Symptoms in Men Receiving Androgen Deprivation Therapy (ADT) Chinese University of Hong Kong NA NOT YET RECRUITING
(Apr 1, 2026)
PHASE2
A Study to Assess Long-term Safety of Fezolinetant Given to Japanese Women Going Through Menopause Astellas Pharma Inc NA COMPLETED
(Mar 1, 2026)
PHASE3
A Study to Confirm if Fezolinetant Helps Reduce Hot Flashes in Chinese Women Going Through Menopause Astellas Pharma Global Development, Inc. NA COMPLETED
(Mar 1, 2026)
PHASE2




Generic Launch

Generic Release Date:

Veozah's generic launch date based on the last expiry date of its patents and exclusivities combined is estimated to be Mar 28, 2034 (This date is subject to change depending upon the patent filing activities by the drug owner or exclusivity additions to its drug application)

Veozah Generics:

There are no approved generic versions for Veozah as of now.





About Veozah

Veozah is a drug owned by Astellas Pharma Us Inc. It is used for managing moderate to severe vasomotor symptoms associated with menopause. Veozah uses Fezolinetant as an active ingredient. Veozah was launched by Astellas in 2023.

Approval Date:

Veozah was approved by FDA for market use on 12 May, 2023.

NCE-1 date:

NCE-1 date also known as the four year date occurs four years after the original drug approval and marks the first opportunity for a generic manufacturer to file an ANDA with a Paragraph IV certification. This is the earliest point when generic competition might begin, provided the challenge is successful. Since the approval date for Veozah is 12 May, 2023, its NCE-1 date is estimated to be 13 May, 2027.

Active Ingredient:

Veozah uses Fezolinetant as the active ingredient. Check out other Drugs and Companies using Fezolinetant ingredient

Treatment:

Veozah is used for managing moderate to severe vasomotor symptoms associated with menopause.

Dosage:

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

Strength Dosage Form Availability Application Pathway
45MG TABLET Prescription ORAL


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