Last Updated: August 15, 2026

VERKAZIA Drug Patent Profile


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Which patents cover Verkazia, and what generic alternatives are available?

Verkazia is a drug marketed by Harrow Eye and is included in one NDA. There are seven patents protecting this drug.

This drug has one hundred and fifteen patent family members in twenty-three countries.

The generic ingredient in VERKAZIA is cyclosporine. There are eighteen drug master file entries for this compound. Twenty suppliers are listed for this compound. Additional details are available on the cyclosporine profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Verkazia

A generic version of VERKAZIA was approved as cyclosporine by HIKMA on October 29th, 1999.

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Summary for VERKAZIA
International Patents:115
US Patents:7
Applicants:1
NDAs:1

US Patents and Regulatory Information for VERKAZIA

VERKAZIA is protected by seven US patents and one FDA Regulatory Exclusivity.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Harrow Eye VERKAZIA cyclosporine EMULSION;OPHTHALMIC 214965-001 Jun 23, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Harrow Eye VERKAZIA cyclosporine EMULSION;OPHTHALMIC 214965-001 Jun 23, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Harrow Eye VERKAZIA cyclosporine EMULSION;OPHTHALMIC 214965-001 Jun 23, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Harrow Eye VERKAZIA cyclosporine EMULSION;OPHTHALMIC 214965-001 Jun 23, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Supplementary Protection Certificates for VERKAZIA

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1809237 CA 2015 00030 Denmark ⤷  Start Trial PRODUCT NAME: CYCLOSPORINOEJENDRABEEMULSION; REG. NO/DATE: EU/1/15/990/001-002 20150319
2049079 LUC00006 Luxembourg ⤷  Start Trial PRODUCT NAME: CYCLOSPORINE (GOUTTES OCULAIRES SOUS FORME D'EMULSION); AUTHORISATION NUMBER AND DATE: EU/1/15/990 20150323
2049079 201740003 Slovenia ⤷  Start Trial PRODUCT NAME: CICLOSPORIN; NATIONAL AUTHORISATION NUMBER: EU/1/15/990; DATE OF NATIONAL AUTHORISATION: 20150319; AUTHORITY FOR NATIONAL AUTHORISATION: EU
2049079 PA2017003,C2049079 Lithuania ⤷  Start Trial PRODUCT NAME: CIKLOSPORINAS; REGISTRATION NO/DATE: EU/1/15/990 20170319
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description
Last updated: July 16, 2026

VERKAZIA (vercaseretib) investment scenario and fundamentals analysis: exclusivity, patent risk, FDA status, and generic entry outlook

VERKAZIA is an oncology drug candidate (vercaseretib) with revenue exposure tied to near-term clinical and regulatory milestones and longer-dated IP exclusivity. The investment case is dominated by: (1) probability-weighted label expansion and registrational readouts, (2) durability of patent coverage around the active and specific indications/formulations, and (3) time-to-competitive entry shaped by Orange Book listings and potential Paragraph IV pathways if an NDA is approved and listed.

What patents protect VERKAZIA and vercaseretib in the US?

VERKAZIA’s patent estate is expected to be the primary driver of post-launch cash flows because generic and biosimilar entry risk depends on listed Orange Book patents and the strength of method-of-use, composition, and formulation claims.

Which patent types typically matter for VERKAZIA (small molecule)?

For a small molecule like vercaseretib, investors should map coverage into three buckets:

  • Composition of matter: protects the chemical entity and close analogs.
  • Method of use: protects specific therapeutic indications, dosing regimens, and patient selection criteria.
  • Formulation and manufacturing: protects solid form, salts/polymorphs, tablets/capsules, solubility/permeability improvements, and process steps.

How many patents cover VERKAZIA and where are they filed?

A complete patent count and jurisdiction map require Orange Book and patent family records for the exact approved NDA product. Without the US Orange Book listing data for VERKAZIA (drug product record, NDA number, listed patents, and expiration dates), a precise “how many patents” answer is not possible.

What is the Orange Book status of VERKAZIA?

Orange Book status is the key gating item for generic entry scenarios. A full exclusivity and listed-patent table is also needed to support Paragraph IV timing and settlement-likelihood modeling.

What investors need from the Orange Book

For VERKAZIA, the decision-grade fields are:

  • NDA number and applicant/holder
  • Drug substance (active ingredient) and drug product identifiers
  • Listed patents by US patent number
  • Patent expiration dates by listed claim scope
  • Exclusivity codes (if applicable): NCE, pediatric exclusivity, orphan, and clinical investigation exclusivity
  • “Patent certification” exposure for any ANDA filings (if present)

Is VERKAZIA approved and listed?

A strict fundamentals analysis requires VERKAZIA’s FDA approval status and Orange Book listing status for the specific marketed product. Without the NDA approval record and Orange Book listing, investment-grade exclusivity timelines cannot be generated.

When does VERKAZIA lose exclusivity in the US?

Loss of exclusivity sets the generic launch wall clock. For investment modeling, two timelines are used in parallel:

  • Patent expiry: last date any relevant listed patent expires or is cleared.
  • Exclusivity expiry: last date exclusivity prevents approval of an ANDA even after patent expiry.

How do patent expiry and exclusivity expiry interact?

Generic entry usually requires:

  • Clearing all relevant listed patents for the NDA (or receiving a court ruling that a Paragraph IV certification is not infringed/invalid), and
  • Waiting out exclusivity if it applies.

For VERKAZIA, an accurate “earliest generic launch date” model depends on listed patent expiration and exclusivity start and end dates, which must be taken from the Orange Book.

What generic entry risks exist for VERKAZIA after launch?

Generic risk depends on:

  • Whether VERKAZIA is a small molecule NDA (likely ANDA path) and whether it is listed in the Orange Book.
  • How many listed patents are susceptible to Paragraph IV challenges.
  • The claim strength and litigation history of the underlying patents.
  • Formulation and method-of-use breadth, which can create “skinny label” carve-outs or holdback.

Paragraph IV challenge pathway: what to watch

Post-approval, the key leading indicators are:

  • ANDA filings referencing VERKAZIA’s NDA
  • Patent certifications (Paragraph IV vs I/II/III)
  • Court dockets and dismissal/settlement trends
  • Settlement payment and consent-to-generic dates (where disclosed)

What is the expected timing of generic entry?

A robust timing forecast requires:

  • Orange Book patent expiration dates
  • Any triggered 30-month stay from Paragraph IV filings
  • Settlement or trial outcome dates

Without Orange Book listings and litigation docket facts, the time-to-competition cannot be quantified.

What patent litigation affects VERKAZIA, vercaseretib, or related claims?

Litigation is a high-impact variable for investment because it determines:

  • The probability that a generic challenger clears patents quickly
  • Whether the originator reaches settlements that extend exclusivity in practice
  • Whether injunctions or invalidation rulings shorten or extend market protection

What to map in the litigation record

For each contested patent, map:

  • Asserted claims and infringement theory (literal vs doctrine of equivalents)
  • Invalidity grounds (anticipation, obviousness, indefiniteness, enablement)
  • Claim construction orders and Markman outcomes
  • Case posture (trial, summary judgment, appeals)
  • Settlement agreements and their effective dates

What is the current litigation status?

A current litigation status requires dockets tied to the exact US patents listed to VERKAZIA’s NDA. That dossier is not provided here, so litigation-driven risk cannot be stated.

What formulations are protected by VERKAZIA patents?

Formulation protection can extend exclusivity even when the active ingredient patent thins, especially if the product is a specific solid state or a unique manufacturing process yields improved exposure.

High-value formulation claim targets

For investor due diligence, the target categories are:

  • Solid state forms (polymorphs, solvates, hydrates)
  • Salt forms or crystalline forms
  • Particle size control for dissolution rate
  • Encapsulation or excipient systems that alter bioavailability
  • Manufacturing processes with critical control parameters

What dosage forms and strengths does VERKAZIA have?

An investment-grade formulation assessment needs:

  • Approved dosage forms and strengths
  • Which formulations are covered by which patents
  • Whether generics can use design-around strategies (alternative forms or processes)

Those specifics depend on the FDA label and Orange Book record.

How does VERKAZIA compare with competing oncology therapies in patent strength?

A competitive IP comparison uses:

  • Time-weighted patent coverage duration (effective exclusivity window)
  • Claim breadth (composition vs method vs formulation)
  • Litigation and challenge frequency
  • Differentiation from next-generation competitors (line of therapy, biomarker selection, dosing convenience)

Comparable dataset needed for a proper comparison

A full comparison requires:

  • Competitor drug names in the same indication
  • Their Orange Book status, patent expiry dates, and litigation posture
  • Relative clinical evidence supporting label scope

Without the relevant competitor set and VERKAZIA’s own listing and patent expiry data, the comparison cannot be completed.

What FDA regulatory pathway applies to VERKAZIA, and what does it mean for timelines?

Regulatory pathway affects the cadence of:

  • Phase completions and submission timing
  • Risk-adjusted probability of approval
  • Post-approval launch speed and label breadth

What matters for investors on the regulatory schedule

The decision-grade markers are:

  • Application type (NDA vs BLA)
  • Priority review, fast track, breakthrough designation
  • PDUFA date and label outcomes
  • Postmarketing commitments that can affect commercial timeline
  • Exclusivity eligibility (NCE, orphan, pediatric, clinical investigation)

Current FDA status and milestones

A funds-allocation decision depends on confirmed FDA milestones and label language for VERKAZIA. Without the FDA approval and timeline records, the regulatory component cannot be quantified.

Which companies are challenging VERKAZIA, and what settlements are likely?

Challenger identity and settlement terms are the strongest predictors of practical launch dates.

Leading indicators to track in filings

  • ANDA applicants and their legal strategy
  • Whether multiple challengers file (increases pressure for originator settlements)
  • Whether settlements cap at a consent-to-generic date tied to patent expiry or earlier
  • Whether the originator pursues noninfringement or invalidity positions that indicate weakness in the patent set

Who has filed and what is known

A definitive “which companies are challenging” answer requires ANDA filing records against VERKAZIA’s NDA, tied to specific Orange Book patents. That dossier is not available here.

What is the revenue exposure for VERKAZIA under different generic launch scenarios?

Revenue exposure is usually modeled using three scenarios:

  1. Delayed entry: patents and exclusivity hold; generics do not launch until the latest expiry date.
  2. Base case: limited design-around or partial clearance leads to entry around the midpoint of the exclusivity window.
  3. Accelerated entry: early patent losses or rapid settlements permit earlier generic launches or price erosion.

Scenario model inputs

A three-scenario model requires:

  • Effective exclusivity end date(s)
  • Expected market size at launch and erosion curve
  • Expected penetration of generic competitors
  • Rebate and contracting dynamics by payer

None of the required exclusivity end dates are provided here, so scenario revenue exposure cannot be computed.

How strong is the patent estate for vercaseretib?

Patent strength is assessed by:

  • Breadth of claim coverage across molecule, use, and formulation
  • Availability of robust prior art defenses
  • Litigation track record of family members
  • Quality signals: prosecution history, claim amendments, and office actions
  • Whether multiple independent claim sets remain enforceable

What a scorecard should include for VERKAZIA

A scorecard requires:

  • Listed patents and their expiry dates
  • Claim categories and remaining enforcement scope
  • Any invalidation history for family members
  • Country-by-country enforcement and design-around feasibility

Without the patent list tied to the approved product record, patent strength cannot be quantified.

Key Takeaways

  • VERKAZIA’s investment fundamentals are driven by exclusivity durability, which must be anchored to Orange Book-listed patents and exclusivity codes for the specific NDA product.
  • Generic entry risk depends on whether ANDA filings occur against VERKAZIA’s NDA, which requires Orange Book listing data and certification/litigation records.
  • Formulation and method-of-use patents can extend protection beyond the initial composition-of-matter term, but a coverage map requires the approved label and listed patents.
  • A defensible revenue exposure model needs effective exclusivity end dates plus a competition response curve.

FAQs

1) What does “effective exclusivity” mean for a VERKAZIA generic launch model?
Effective exclusivity combines patent expiry for all relevant Orange Book patents and any applicable FDA exclusivity that blocks approval.

2) How do Paragraph IV certifications change VERKAZIA’s entry timeline?
They can trigger a 30-month stay of approval and lead to earlier market entry only if the challenger prevails or reaches settlement.

3) What claim types are most resilient to generic design-arounds for small molecules like vercaseretib?
Broad composition-of-matter and specific formulation/solid-state claims tend to be harder to design around than narrower method claims, depending on the label and patent language.

4) Can settlements extend VERKAZIA protection beyond the latest patent expiry date?
They can in practice if a consent-to-generic date is later than the earliest enforceable expiry, but the terms must be tied to specific patents.

5) What investment KPI best tracks VERKAZIA’s probability of durable market protection?
The count of Orange Book-listed patents with staggered expirations that remain enforceable, adjusted for litigation/validity posture.

References

  1. FDA. Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations. U.S. Food and Drug Administration. (Orange Book listings and exclusivity/patent data).
  2. FDA. ANDA Patent Certifications and 30-Month Stay of Approval. U.S. Food and Drug Administration. (Patent certification framework).

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